[VOL-5486] Upgrade library versions
Change-Id: I8b4e88699e03f44ee13e467867f45ae3f0a63c4b
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/go.opentelemetry.io/otel/sdk/LICENSE b/vendor/go.opentelemetry.io/otel/sdk/LICENSE
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
diff --git a/vendor/go.opentelemetry.io/otel/sdk/README.md b/vendor/go.opentelemetry.io/otel/sdk/README.md
new file mode 100644
index 0000000..f81b157
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/README.md
@@ -0,0 +1,3 @@
+# SDK
+
+[](https://pkg.go.dev/go.opentelemetry.io/otel/sdk)
diff --git a/vendor/go.opentelemetry.io/otel/sdk/instrumentation/README.md b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/README.md
new file mode 100644
index 0000000..06e6d86
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/README.md
@@ -0,0 +1,3 @@
+# SDK Instrumentation
+
+[](https://pkg.go.dev/go.opentelemetry.io/otel/sdk/instrumentation)
diff --git a/vendor/go.opentelemetry.io/otel/sdk/instrumentation/doc.go b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/doc.go
new file mode 100644
index 0000000..a4faa6a
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/doc.go
@@ -0,0 +1,13 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package instrumentation provides types to represent the code libraries that
+// provide OpenTelemetry instrumentation. These types are used in the
+// OpenTelemetry signal pipelines to identify the source of telemetry.
+//
+// See
+// https://github.com/open-telemetry/oteps/blob/d226b677d73a785523fe9b9701be13225ebc528d/text/0083-component.md
+// and
+// https://github.com/open-telemetry/oteps/blob/d226b677d73a785523fe9b9701be13225ebc528d/text/0201-scope-attributes.md
+// for more information.
+package instrumentation // import "go.opentelemetry.io/otel/sdk/instrumentation"
diff --git a/vendor/go.opentelemetry.io/otel/sdk/instrumentation/library.go b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/library.go
new file mode 100644
index 0000000..f2cdf3c
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/library.go
@@ -0,0 +1,9 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package instrumentation // import "go.opentelemetry.io/otel/sdk/instrumentation"
+
+// Library represents the instrumentation library.
+//
+// Deprecated: use [Scope] instead.
+type Library = Scope
diff --git a/vendor/go.opentelemetry.io/otel/sdk/instrumentation/scope.go b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/scope.go
new file mode 100644
index 0000000..34852a4
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/instrumentation/scope.go
@@ -0,0 +1,19 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package instrumentation // import "go.opentelemetry.io/otel/sdk/instrumentation"
+
+import "go.opentelemetry.io/otel/attribute"
+
+// Scope represents the instrumentation scope.
+type Scope struct {
+ // Name is the name of the instrumentation scope. This should be the
+ // Go package name of that scope.
+ Name string
+ // Version is the version of the instrumentation scope.
+ Version string
+ // SchemaURL of the telemetry emitted by the scope.
+ SchemaURL string
+ // Attributes of the telemetry emitted by the scope.
+ Attributes attribute.Set
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/internal/env/env.go b/vendor/go.opentelemetry.io/otel/sdk/internal/env/env.go
new file mode 100644
index 0000000..e330923
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/internal/env/env.go
@@ -0,0 +1,168 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package env provides types and functionality for environment variable support
+// in the OpenTelemetry SDK.
+package env // import "go.opentelemetry.io/otel/sdk/internal/env"
+
+import (
+ "os"
+ "strconv"
+
+ "go.opentelemetry.io/otel/internal/global"
+)
+
+// Environment variable names.
+const (
+ // BatchSpanProcessorScheduleDelayKey is the delay interval between two
+ // consecutive exports (i.e. 5000).
+ BatchSpanProcessorScheduleDelayKey = "OTEL_BSP_SCHEDULE_DELAY"
+ // BatchSpanProcessorExportTimeoutKey is the maximum allowed time to
+ // export data (i.e. 3000).
+ BatchSpanProcessorExportTimeoutKey = "OTEL_BSP_EXPORT_TIMEOUT"
+ // BatchSpanProcessorMaxQueueSizeKey is the maximum queue size (i.e. 2048).
+ BatchSpanProcessorMaxQueueSizeKey = "OTEL_BSP_MAX_QUEUE_SIZE"
+ // BatchSpanProcessorMaxExportBatchSizeKey is the maximum batch size (i.e.
+ // 512). Note: it must be less than or equal to
+ // BatchSpanProcessorMaxQueueSize.
+ BatchSpanProcessorMaxExportBatchSizeKey = "OTEL_BSP_MAX_EXPORT_BATCH_SIZE"
+
+ // AttributeValueLengthKey is the maximum allowed attribute value size.
+ AttributeValueLengthKey = "OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT"
+
+ // AttributeCountKey is the maximum allowed span attribute count.
+ AttributeCountKey = "OTEL_ATTRIBUTE_COUNT_LIMIT"
+
+ // SpanAttributeValueLengthKey is the maximum allowed attribute value size
+ // for a span.
+ SpanAttributeValueLengthKey = "OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT"
+
+ // SpanAttributeCountKey is the maximum allowed span attribute count for a
+ // span.
+ SpanAttributeCountKey = "OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT"
+
+ // SpanEventCountKey is the maximum allowed span event count.
+ SpanEventCountKey = "OTEL_SPAN_EVENT_COUNT_LIMIT"
+
+ // SpanEventAttributeCountKey is the maximum allowed attribute per span
+ // event count.
+ SpanEventAttributeCountKey = "OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT"
+
+ // SpanLinkCountKey is the maximum allowed span link count.
+ SpanLinkCountKey = "OTEL_SPAN_LINK_COUNT_LIMIT"
+
+ // SpanLinkAttributeCountKey is the maximum allowed attribute per span
+ // link count.
+ SpanLinkAttributeCountKey = "OTEL_LINK_ATTRIBUTE_COUNT_LIMIT"
+)
+
+// firstInt returns the value of the first matching environment variable from
+// keys. If the value is not an integer or no match is found, defaultValue is
+// returned.
+func firstInt(defaultValue int, keys ...string) int {
+ for _, key := range keys {
+ value := os.Getenv(key)
+ if value == "" {
+ continue
+ }
+
+ intValue, err := strconv.Atoi(value)
+ if err != nil {
+ global.Info("Got invalid value, number value expected.", key, value)
+ return defaultValue
+ }
+
+ return intValue
+ }
+
+ return defaultValue
+}
+
+// IntEnvOr returns the int value of the environment variable with name key if
+// it exists, it is not empty, and the value is an int. Otherwise, defaultValue is returned.
+func IntEnvOr(key string, defaultValue int) int {
+ value := os.Getenv(key)
+ if value == "" {
+ return defaultValue
+ }
+
+ intValue, err := strconv.Atoi(value)
+ if err != nil {
+ global.Info("Got invalid value, number value expected.", key, value)
+ return defaultValue
+ }
+
+ return intValue
+}
+
+// BatchSpanProcessorScheduleDelay returns the environment variable value for
+// the OTEL_BSP_SCHEDULE_DELAY key if it exists, otherwise defaultValue is
+// returned.
+func BatchSpanProcessorScheduleDelay(defaultValue int) int {
+ return IntEnvOr(BatchSpanProcessorScheduleDelayKey, defaultValue)
+}
+
+// BatchSpanProcessorExportTimeout returns the environment variable value for
+// the OTEL_BSP_EXPORT_TIMEOUT key if it exists, otherwise defaultValue is
+// returned.
+func BatchSpanProcessorExportTimeout(defaultValue int) int {
+ return IntEnvOr(BatchSpanProcessorExportTimeoutKey, defaultValue)
+}
+
+// BatchSpanProcessorMaxQueueSize returns the environment variable value for
+// the OTEL_BSP_MAX_QUEUE_SIZE key if it exists, otherwise defaultValue is
+// returned.
+func BatchSpanProcessorMaxQueueSize(defaultValue int) int {
+ return IntEnvOr(BatchSpanProcessorMaxQueueSizeKey, defaultValue)
+}
+
+// BatchSpanProcessorMaxExportBatchSize returns the environment variable value for
+// the OTEL_BSP_MAX_EXPORT_BATCH_SIZE key if it exists, otherwise defaultValue
+// is returned.
+func BatchSpanProcessorMaxExportBatchSize(defaultValue int) int {
+ return IntEnvOr(BatchSpanProcessorMaxExportBatchSizeKey, defaultValue)
+}
+
+// SpanAttributeValueLength returns the environment variable value for the
+// OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT key if it exists. Otherwise, the
+// environment variable value for OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT is
+// returned or defaultValue if that is not set.
+func SpanAttributeValueLength(defaultValue int) int {
+ return firstInt(defaultValue, SpanAttributeValueLengthKey, AttributeValueLengthKey)
+}
+
+// SpanAttributeCount returns the environment variable value for the
+// OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT key if it exists. Otherwise, the
+// environment variable value for OTEL_ATTRIBUTE_COUNT_LIMIT is returned or
+// defaultValue if that is not set.
+func SpanAttributeCount(defaultValue int) int {
+ return firstInt(defaultValue, SpanAttributeCountKey, AttributeCountKey)
+}
+
+// SpanEventCount returns the environment variable value for the
+// OTEL_SPAN_EVENT_COUNT_LIMIT key if it exists, otherwise defaultValue is
+// returned.
+func SpanEventCount(defaultValue int) int {
+ return IntEnvOr(SpanEventCountKey, defaultValue)
+}
+
+// SpanEventAttributeCount returns the environment variable value for the
+// OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT key if it exists, otherwise defaultValue
+// is returned.
+func SpanEventAttributeCount(defaultValue int) int {
+ return IntEnvOr(SpanEventAttributeCountKey, defaultValue)
+}
+
+// SpanLinkCount returns the environment variable value for the
+// OTEL_SPAN_LINK_COUNT_LIMIT key if it exists, otherwise defaultValue is
+// returned.
+func SpanLinkCount(defaultValue int) int {
+ return IntEnvOr(SpanLinkCountKey, defaultValue)
+}
+
+// SpanLinkAttributeCount returns the environment variable value for the
+// OTEL_LINK_ATTRIBUTE_COUNT_LIMIT key if it exists, otherwise defaultValue is
+// returned.
+func SpanLinkAttributeCount(defaultValue int) int {
+ return IntEnvOr(SpanLinkAttributeCountKey, defaultValue)
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/internal/x/README.md b/vendor/go.opentelemetry.io/otel/sdk/internal/x/README.md
new file mode 100644
index 0000000..fab6164
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/internal/x/README.md
@@ -0,0 +1,46 @@
+# Experimental Features
+
+The SDK contains features that have not yet stabilized in the OpenTelemetry specification.
+These features are added to the OpenTelemetry Go SDK prior to stabilization in the specification so that users can start experimenting with them and provide feedback.
+
+These feature may change in backwards incompatible ways as feedback is applied.
+See the [Compatibility and Stability](#compatibility-and-stability) section for more information.
+
+## Features
+
+- [Resource](#resource)
+
+### Resource
+
+[OpenTelemetry resource semantic conventions] include many attribute definitions that are defined as experimental.
+To have experimental semantic conventions be added by [resource detectors] set the `OTEL_GO_X_RESOURCE` environment variable.
+The value set must be the case-insensitive string of `"true"` to enable the feature.
+All other values are ignored.
+
+<!-- TODO: document what attributes are added by which detector -->
+
+[OpenTelemetry resource semantic conventions]: https://opentelemetry.io/docs/specs/semconv/resource/
+[resource detectors]: https://pkg.go.dev/go.opentelemetry.io/otel/sdk/resource#Detector
+
+#### Examples
+
+Enable experimental resource semantic conventions.
+
+```console
+export OTEL_GO_X_RESOURCE=true
+```
+
+Disable experimental resource semantic conventions.
+
+```console
+unset OTEL_GO_X_RESOURCE
+```
+
+## Compatibility and Stability
+
+Experimental features do not fall within the scope of the OpenTelemetry Go versioning and stability [policy](../../../VERSIONING.md).
+These features may be removed or modified in successive version releases, including patch versions.
+
+When an experimental feature is promoted to a stable feature, a migration path will be included in the changelog entry of the release.
+There is no guarantee that any environment variable feature flags that enabled the experimental feature will be supported by the stable version.
+If they are supported, they may be accompanied with a deprecation notice stating a timeline for the removal of that support.
diff --git a/vendor/go.opentelemetry.io/otel/sdk/internal/x/x.go b/vendor/go.opentelemetry.io/otel/sdk/internal/x/x.go
new file mode 100644
index 0000000..68d296c
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/internal/x/x.go
@@ -0,0 +1,66 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package x contains support for OTel SDK experimental features.
+//
+// This package should only be used for features defined in the specification.
+// It should not be used for experiments or new project ideas.
+package x // import "go.opentelemetry.io/otel/sdk/internal/x"
+
+import (
+ "os"
+ "strings"
+)
+
+// Resource is an experimental feature flag that defines if resource detectors
+// should be included experimental semantic conventions.
+//
+// To enable this feature set the OTEL_GO_X_RESOURCE environment variable
+// to the case-insensitive string value of "true" (i.e. "True" and "TRUE"
+// will also enable this).
+var Resource = newFeature("RESOURCE", func(v string) (string, bool) {
+ if strings.ToLower(v) == "true" {
+ return v, true
+ }
+ return "", false
+})
+
+// Feature is an experimental feature control flag. It provides a uniform way
+// to interact with these feature flags and parse their values.
+type Feature[T any] struct {
+ key string
+ parse func(v string) (T, bool)
+}
+
+func newFeature[T any](suffix string, parse func(string) (T, bool)) Feature[T] {
+ const envKeyRoot = "OTEL_GO_X_"
+ return Feature[T]{
+ key: envKeyRoot + suffix,
+ parse: parse,
+ }
+}
+
+// Key returns the environment variable key that needs to be set to enable the
+// feature.
+func (f Feature[T]) Key() string { return f.key }
+
+// Lookup returns the user configured value for the feature and true if the
+// user has enabled the feature. Otherwise, if the feature is not enabled, a
+// zero-value and false are returned.
+func (f Feature[T]) Lookup() (v T, ok bool) {
+ // https://github.com/open-telemetry/opentelemetry-specification/blob/62effed618589a0bec416a87e559c0a9d96289bb/specification/configuration/sdk-environment-variables.md#parsing-empty-value
+ //
+ // > The SDK MUST interpret an empty value of an environment variable the
+ // > same way as when the variable is unset.
+ vRaw := os.Getenv(f.key)
+ if vRaw == "" {
+ return v, ok
+ }
+ return f.parse(vRaw)
+}
+
+// Enabled returns if the feature is enabled.
+func (f Feature[T]) Enabled() bool {
+ _, ok := f.Lookup()
+ return ok
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/README.md b/vendor/go.opentelemetry.io/otel/sdk/resource/README.md
new file mode 100644
index 0000000..4ad864d
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/README.md
@@ -0,0 +1,3 @@
+# SDK Resource
+
+[](https://pkg.go.dev/go.opentelemetry.io/otel/sdk/resource)
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/auto.go b/vendor/go.opentelemetry.io/otel/sdk/resource/auto.go
new file mode 100644
index 0000000..c02aeef
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/auto.go
@@ -0,0 +1,92 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+ "errors"
+ "fmt"
+)
+
+// ErrPartialResource is returned by a detector when complete source
+// information for a Resource is unavailable or the source information
+// contains invalid values that are omitted from the returned Resource.
+var ErrPartialResource = errors.New("partial resource")
+
+// Detector detects OpenTelemetry resource information.
+type Detector interface {
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // Detect returns an initialized Resource based on gathered information.
+ // If the source information to construct a Resource contains invalid
+ // values, a Resource is returned with the valid parts of the source
+ // information used for initialization along with an appropriately
+ // wrapped ErrPartialResource error.
+ Detect(ctx context.Context) (*Resource, error)
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+}
+
+// Detect returns a new [Resource] merged from all the Resources each of the
+// detectors produces. Each of the detectors are called sequentially, in the
+// order they are passed, merging the produced resource into the previous.
+//
+// This may return a partial Resource along with an error containing
+// [ErrPartialResource] if that error is returned from a detector. It may also
+// return a merge-conflicting Resource along with an error containing
+// [ErrSchemaURLConflict] if merging Resources from different detectors results
+// in a schema URL conflict. It is up to the caller to determine if this
+// returned Resource should be used or not.
+//
+// If one of the detectors returns an error that is not [ErrPartialResource],
+// the resource produced by the detector will not be merged and the returned
+// error will wrap that detector's error.
+func Detect(ctx context.Context, detectors ...Detector) (*Resource, error) {
+ r := new(Resource)
+ return r, detect(ctx, r, detectors)
+}
+
+// detect runs all detectors using ctx and merges the result into res. This
+// assumes res is allocated and not nil, it will panic otherwise.
+//
+// If the detectors or merging resources produces any errors (i.e.
+// [ErrPartialResource] [ErrSchemaURLConflict]), a single error wrapping all of
+// these errors will be returned. Otherwise, nil is returned.
+func detect(ctx context.Context, res *Resource, detectors []Detector) error {
+ var (
+ r *Resource
+ err error
+ e error
+ )
+
+ for _, detector := range detectors {
+ if detector == nil {
+ continue
+ }
+ r, e = detector.Detect(ctx)
+ if e != nil {
+ err = errors.Join(err, e)
+ if !errors.Is(e, ErrPartialResource) {
+ continue
+ }
+ }
+ r, e = Merge(res, r)
+ if e != nil {
+ err = errors.Join(err, e)
+ }
+ *res = *r
+ }
+
+ if err != nil {
+ if errors.Is(err, ErrSchemaURLConflict) {
+ // If there has been a merge conflict, ensure the resource has no
+ // schema URL.
+ res.schemaURL = ""
+ }
+
+ err = fmt.Errorf("error detecting resource: %w", err)
+ }
+ return err
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/builtin.go b/vendor/go.opentelemetry.io/otel/sdk/resource/builtin.go
new file mode 100644
index 0000000..cefe4ab
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/builtin.go
@@ -0,0 +1,116 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+ "fmt"
+ "os"
+ "path/filepath"
+
+ "github.com/google/uuid"
+
+ "go.opentelemetry.io/otel/attribute"
+ "go.opentelemetry.io/otel/sdk"
+ semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
+)
+
+type (
+ // telemetrySDK is a Detector that provides information about
+ // the OpenTelemetry SDK used. This Detector is included as a
+ // builtin. If these resource attributes are not wanted, use
+ // resource.New() to explicitly disable them.
+ telemetrySDK struct{}
+
+ // host is a Detector that provides information about the host
+ // being run on. This Detector is included as a builtin. If
+ // these resource attributes are not wanted, use the
+ // resource.New() to explicitly disable them.
+ host struct{}
+
+ stringDetector struct {
+ schemaURL string
+ K attribute.Key
+ F func() (string, error)
+ }
+
+ defaultServiceNameDetector struct{}
+
+ defaultServiceInstanceIDDetector struct{}
+)
+
+var (
+ _ Detector = telemetrySDK{}
+ _ Detector = host{}
+ _ Detector = stringDetector{}
+ _ Detector = defaultServiceNameDetector{}
+ _ Detector = defaultServiceInstanceIDDetector{}
+)
+
+// Detect returns a *Resource that describes the OpenTelemetry SDK used.
+func (telemetrySDK) Detect(context.Context) (*Resource, error) {
+ return NewWithAttributes(
+ semconv.SchemaURL,
+ semconv.TelemetrySDKName("opentelemetry"),
+ semconv.TelemetrySDKLanguageGo,
+ semconv.TelemetrySDKVersion(sdk.Version()),
+ ), nil
+}
+
+// Detect returns a *Resource that describes the host being run on.
+func (host) Detect(ctx context.Context) (*Resource, error) {
+ return StringDetector(semconv.SchemaURL, semconv.HostNameKey, os.Hostname).Detect(ctx)
+}
+
+// StringDetector returns a Detector that will produce a *Resource
+// containing the string as a value corresponding to k. The resulting Resource
+// will have the specified schemaURL.
+func StringDetector(schemaURL string, k attribute.Key, f func() (string, error)) Detector {
+ return stringDetector{schemaURL: schemaURL, K: k, F: f}
+}
+
+// Detect returns a *Resource that describes the string as a value
+// corresponding to attribute.Key as well as the specific schemaURL.
+func (sd stringDetector) Detect(ctx context.Context) (*Resource, error) {
+ value, err := sd.F()
+ if err != nil {
+ return nil, fmt.Errorf("%s: %w", string(sd.K), err)
+ }
+ a := sd.K.String(value)
+ if !a.Valid() {
+ return nil, fmt.Errorf("invalid attribute: %q -> %q", a.Key, a.Value.Emit())
+ }
+ return NewWithAttributes(sd.schemaURL, sd.K.String(value)), nil
+}
+
+// Detect implements Detector.
+func (defaultServiceNameDetector) Detect(ctx context.Context) (*Resource, error) {
+ return StringDetector(
+ semconv.SchemaURL,
+ semconv.ServiceNameKey,
+ func() (string, error) {
+ executable, err := os.Executable()
+ if err != nil {
+ return "unknown_service:go", nil
+ }
+ return "unknown_service:" + filepath.Base(executable), nil
+ },
+ ).Detect(ctx)
+}
+
+// Detect implements Detector.
+func (defaultServiceInstanceIDDetector) Detect(ctx context.Context) (*Resource, error) {
+ return StringDetector(
+ semconv.SchemaURL,
+ semconv.ServiceInstanceIDKey,
+ func() (string, error) {
+ version4Uuid, err := uuid.NewRandom()
+ if err != nil {
+ return "", err
+ }
+
+ return version4Uuid.String(), nil
+ },
+ ).Detect(ctx)
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/config.go b/vendor/go.opentelemetry.io/otel/sdk/resource/config.go
new file mode 100644
index 0000000..0d6e213
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/config.go
@@ -0,0 +1,195 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+
+ "go.opentelemetry.io/otel/attribute"
+)
+
+// config contains configuration for Resource creation.
+type config struct {
+ // detectors that will be evaluated.
+ detectors []Detector
+ // SchemaURL to associate with the Resource.
+ schemaURL string
+}
+
+// Option is the interface that applies a configuration option.
+type Option interface {
+ // apply sets the Option value of a config.
+ apply(config) config
+}
+
+// WithAttributes adds attributes to the configured Resource.
+func WithAttributes(attributes ...attribute.KeyValue) Option {
+ return WithDetectors(detectAttributes{attributes})
+}
+
+type detectAttributes struct {
+ attributes []attribute.KeyValue
+}
+
+func (d detectAttributes) Detect(context.Context) (*Resource, error) {
+ return NewSchemaless(d.attributes...), nil
+}
+
+// WithDetectors adds detectors to be evaluated for the configured resource.
+func WithDetectors(detectors ...Detector) Option {
+ return detectorsOption{detectors: detectors}
+}
+
+type detectorsOption struct {
+ detectors []Detector
+}
+
+func (o detectorsOption) apply(cfg config) config {
+ cfg.detectors = append(cfg.detectors, o.detectors...)
+ return cfg
+}
+
+// WithFromEnv adds attributes from environment variables to the configured resource.
+func WithFromEnv() Option {
+ return WithDetectors(fromEnv{})
+}
+
+// WithHost adds attributes from the host to the configured resource.
+func WithHost() Option {
+ return WithDetectors(host{})
+}
+
+// WithHostID adds host ID information to the configured resource.
+func WithHostID() Option {
+ return WithDetectors(hostIDDetector{})
+}
+
+// WithTelemetrySDK adds TelemetrySDK version info to the configured resource.
+func WithTelemetrySDK() Option {
+ return WithDetectors(telemetrySDK{})
+}
+
+// WithSchemaURL sets the schema URL for the configured resource.
+func WithSchemaURL(schemaURL string) Option {
+ return schemaURLOption(schemaURL)
+}
+
+type schemaURLOption string
+
+func (o schemaURLOption) apply(cfg config) config {
+ cfg.schemaURL = string(o)
+ return cfg
+}
+
+// WithOS adds all the OS attributes to the configured Resource.
+// See individual WithOS* functions to configure specific attributes.
+func WithOS() Option {
+ return WithDetectors(
+ osTypeDetector{},
+ osDescriptionDetector{},
+ )
+}
+
+// WithOSType adds an attribute with the operating system type to the configured Resource.
+func WithOSType() Option {
+ return WithDetectors(osTypeDetector{})
+}
+
+// WithOSDescription adds an attribute with the operating system description to the
+// configured Resource. The formatted string is equivalent to the output of the
+// `uname -snrvm` command.
+func WithOSDescription() Option {
+ return WithDetectors(osDescriptionDetector{})
+}
+
+// WithProcess adds all the Process attributes to the configured Resource.
+//
+// Warning! This option will include process command line arguments. If these
+// contain sensitive information it will be included in the exported resource.
+//
+// This option is equivalent to calling WithProcessPID,
+// WithProcessExecutableName, WithProcessExecutablePath,
+// WithProcessCommandArgs, WithProcessOwner, WithProcessRuntimeName,
+// WithProcessRuntimeVersion, and WithProcessRuntimeDescription. See each
+// option function for information about what resource attributes each
+// includes.
+func WithProcess() Option {
+ return WithDetectors(
+ processPIDDetector{},
+ processExecutableNameDetector{},
+ processExecutablePathDetector{},
+ processCommandArgsDetector{},
+ processOwnerDetector{},
+ processRuntimeNameDetector{},
+ processRuntimeVersionDetector{},
+ processRuntimeDescriptionDetector{},
+ )
+}
+
+// WithProcessPID adds an attribute with the process identifier (PID) to the
+// configured Resource.
+func WithProcessPID() Option {
+ return WithDetectors(processPIDDetector{})
+}
+
+// WithProcessExecutableName adds an attribute with the name of the process
+// executable to the configured Resource.
+func WithProcessExecutableName() Option {
+ return WithDetectors(processExecutableNameDetector{})
+}
+
+// WithProcessExecutablePath adds an attribute with the full path to the process
+// executable to the configured Resource.
+func WithProcessExecutablePath() Option {
+ return WithDetectors(processExecutablePathDetector{})
+}
+
+// WithProcessCommandArgs adds an attribute with all the command arguments (including
+// the command/executable itself) as received by the process to the configured
+// Resource.
+//
+// Warning! This option will include process command line arguments. If these
+// contain sensitive information it will be included in the exported resource.
+func WithProcessCommandArgs() Option {
+ return WithDetectors(processCommandArgsDetector{})
+}
+
+// WithProcessOwner adds an attribute with the username of the user that owns the process
+// to the configured Resource.
+func WithProcessOwner() Option {
+ return WithDetectors(processOwnerDetector{})
+}
+
+// WithProcessRuntimeName adds an attribute with the name of the runtime of this
+// process to the configured Resource.
+func WithProcessRuntimeName() Option {
+ return WithDetectors(processRuntimeNameDetector{})
+}
+
+// WithProcessRuntimeVersion adds an attribute with the version of the runtime of
+// this process to the configured Resource.
+func WithProcessRuntimeVersion() Option {
+ return WithDetectors(processRuntimeVersionDetector{})
+}
+
+// WithProcessRuntimeDescription adds an attribute with an additional description
+// about the runtime of the process to the configured Resource.
+func WithProcessRuntimeDescription() Option {
+ return WithDetectors(processRuntimeDescriptionDetector{})
+}
+
+// WithContainer adds all the Container attributes to the configured Resource.
+// See individual WithContainer* functions to configure specific attributes.
+func WithContainer() Option {
+ return WithDetectors(
+ cgroupContainerIDDetector{},
+ )
+}
+
+// WithContainerID adds an attribute with the id of the container to the configured Resource.
+// Note: WithContainerID will not extract the correct container ID in an ECS environment.
+// Please use the ECS resource detector instead (https://pkg.go.dev/go.opentelemetry.io/contrib/detectors/aws/ecs).
+func WithContainerID() Option {
+ return WithDetectors(cgroupContainerIDDetector{})
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/container.go b/vendor/go.opentelemetry.io/otel/sdk/resource/container.go
new file mode 100644
index 0000000..0d86197
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/container.go
@@ -0,0 +1,89 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "bufio"
+ "context"
+ "errors"
+ "io"
+ "os"
+ "regexp"
+
+ semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
+)
+
+type containerIDProvider func() (string, error)
+
+var (
+ containerID containerIDProvider = getContainerIDFromCGroup
+ cgroupContainerIDRe = regexp.MustCompile(`^.*/(?:.*[-:])?([0-9a-f]+)(?:\.|\s*$)`)
+)
+
+type cgroupContainerIDDetector struct{}
+
+const cgroupPath = "/proc/self/cgroup"
+
+// Detect returns a *Resource that describes the id of the container.
+// If no container id found, an empty resource will be returned.
+func (cgroupContainerIDDetector) Detect(ctx context.Context) (*Resource, error) {
+ containerID, err := containerID()
+ if err != nil {
+ return nil, err
+ }
+
+ if containerID == "" {
+ return Empty(), nil
+ }
+ return NewWithAttributes(semconv.SchemaURL, semconv.ContainerID(containerID)), nil
+}
+
+var (
+ defaultOSStat = os.Stat
+ osStat = defaultOSStat
+
+ defaultOSOpen = func(name string) (io.ReadCloser, error) {
+ return os.Open(name)
+ }
+ osOpen = defaultOSOpen
+)
+
+// getContainerIDFromCGroup returns the id of the container from the cgroup file.
+// If no container id found, an empty string will be returned.
+func getContainerIDFromCGroup() (string, error) {
+ if _, err := osStat(cgroupPath); errors.Is(err, os.ErrNotExist) {
+ // File does not exist, skip
+ return "", nil
+ }
+
+ file, err := osOpen(cgroupPath)
+ if err != nil {
+ return "", err
+ }
+ defer file.Close()
+
+ return getContainerIDFromReader(file), nil
+}
+
+// getContainerIDFromReader returns the id of the container from reader.
+func getContainerIDFromReader(reader io.Reader) string {
+ scanner := bufio.NewScanner(reader)
+ for scanner.Scan() {
+ line := scanner.Text()
+
+ if id := getContainerIDFromLine(line); id != "" {
+ return id
+ }
+ }
+ return ""
+}
+
+// getContainerIDFromLine returns the id of the container from one string line.
+func getContainerIDFromLine(line string) string {
+ matches := cgroupContainerIDRe.FindStringSubmatch(line)
+ if len(matches) <= 1 {
+ return ""
+ }
+ return matches[1]
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/doc.go b/vendor/go.opentelemetry.io/otel/sdk/resource/doc.go
new file mode 100644
index 0000000..64939a2
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/doc.go
@@ -0,0 +1,20 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package resource provides detecting and representing resources.
+//
+// The fundamental struct is a Resource which holds identifying information
+// about the entities for which telemetry is exported.
+//
+// To automatically construct Resources from an environment a Detector
+// interface is defined. Implementations of this interface can be passed to
+// the Detect function to generate a Resource from the merged information.
+//
+// To load a user defined Resource from the environment variable
+// OTEL_RESOURCE_ATTRIBUTES the FromEnv Detector can be used. It will interpret
+// the value as a list of comma delimited key/value pairs
+// (e.g. `<key1>=<value1>,<key2>=<value2>,...`).
+//
+// While this package provides a stable API,
+// the attributes added by resource detectors may change.
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/env.go b/vendor/go.opentelemetry.io/otel/sdk/resource/env.go
new file mode 100644
index 0000000..16a062a
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/env.go
@@ -0,0 +1,95 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+ "fmt"
+ "net/url"
+ "os"
+ "strings"
+
+ "go.opentelemetry.io/otel"
+ "go.opentelemetry.io/otel/attribute"
+ semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
+)
+
+const (
+ // resourceAttrKey is the environment variable name OpenTelemetry Resource information will be read from.
+ resourceAttrKey = "OTEL_RESOURCE_ATTRIBUTES" //nolint:gosec // False positive G101: Potential hardcoded credentials
+
+ // svcNameKey is the environment variable name that Service Name information will be read from.
+ svcNameKey = "OTEL_SERVICE_NAME"
+)
+
+// errMissingValue is returned when a resource value is missing.
+var errMissingValue = fmt.Errorf("%w: missing value", ErrPartialResource)
+
+// fromEnv is a Detector that implements the Detector and collects
+// resources from environment. This Detector is included as a
+// builtin.
+type fromEnv struct{}
+
+// compile time assertion that FromEnv implements Detector interface.
+var _ Detector = fromEnv{}
+
+// Detect collects resources from environment.
+func (fromEnv) Detect(context.Context) (*Resource, error) {
+ attrs := strings.TrimSpace(os.Getenv(resourceAttrKey))
+ svcName := strings.TrimSpace(os.Getenv(svcNameKey))
+
+ if attrs == "" && svcName == "" {
+ return Empty(), nil
+ }
+
+ var res *Resource
+
+ if svcName != "" {
+ res = NewSchemaless(semconv.ServiceName(svcName))
+ }
+
+ r2, err := constructOTResources(attrs)
+
+ // Ensure that the resource with the service name from OTEL_SERVICE_NAME
+ // takes precedence, if it was defined.
+ res, err2 := Merge(r2, res)
+
+ if err == nil {
+ err = err2
+ } else if err2 != nil {
+ err = fmt.Errorf("detecting resources: %s", []string{err.Error(), err2.Error()})
+ }
+
+ return res, err
+}
+
+func constructOTResources(s string) (*Resource, error) {
+ if s == "" {
+ return Empty(), nil
+ }
+ pairs := strings.Split(s, ",")
+ var attrs []attribute.KeyValue
+ var invalid []string
+ for _, p := range pairs {
+ k, v, found := strings.Cut(p, "=")
+ if !found {
+ invalid = append(invalid, p)
+ continue
+ }
+ key := strings.TrimSpace(k)
+ val, err := url.PathUnescape(strings.TrimSpace(v))
+ if err != nil {
+ // Retain original value if decoding fails, otherwise it will be
+ // an empty string.
+ val = v
+ otel.Handle(err)
+ }
+ attrs = append(attrs, attribute.String(key, val))
+ }
+ var err error
+ if len(invalid) > 0 {
+ err = fmt.Errorf("%w: %v", errMissingValue, invalid)
+ }
+ return NewSchemaless(attrs...), err
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id.go
new file mode 100644
index 0000000..7819039
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id.go
@@ -0,0 +1,109 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+ "errors"
+ "strings"
+
+ semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
+)
+
+type hostIDProvider func() (string, error)
+
+var defaultHostIDProvider hostIDProvider = platformHostIDReader.read
+
+var hostID = defaultHostIDProvider
+
+type hostIDReader interface {
+ read() (string, error)
+}
+
+type fileReader func(string) (string, error)
+
+type commandExecutor func(string, ...string) (string, error)
+
+// hostIDReaderBSD implements hostIDReader.
+type hostIDReaderBSD struct {
+ execCommand commandExecutor
+ readFile fileReader
+}
+
+// read attempts to read the machine-id from /etc/hostid. If not found it will
+// execute `kenv -q smbios.system.uuid`. If neither location yields an id an
+// error will be returned.
+func (r *hostIDReaderBSD) read() (string, error) {
+ if result, err := r.readFile("/etc/hostid"); err == nil {
+ return strings.TrimSpace(result), nil
+ }
+
+ if result, err := r.execCommand("kenv", "-q", "smbios.system.uuid"); err == nil {
+ return strings.TrimSpace(result), nil
+ }
+
+ return "", errors.New("host id not found in: /etc/hostid or kenv")
+}
+
+// hostIDReaderDarwin implements hostIDReader.
+type hostIDReaderDarwin struct {
+ execCommand commandExecutor
+}
+
+// read executes `ioreg -rd1 -c "IOPlatformExpertDevice"` and parses host id
+// from the IOPlatformUUID line. If the command fails or the uuid cannot be
+// parsed an error will be returned.
+func (r *hostIDReaderDarwin) read() (string, error) {
+ result, err := r.execCommand("ioreg", "-rd1", "-c", "IOPlatformExpertDevice")
+ if err != nil {
+ return "", err
+ }
+
+ lines := strings.Split(result, "\n")
+ for _, line := range lines {
+ if strings.Contains(line, "IOPlatformUUID") {
+ parts := strings.Split(line, " = ")
+ if len(parts) == 2 {
+ return strings.Trim(parts[1], "\""), nil
+ }
+ break
+ }
+ }
+
+ return "", errors.New("could not parse IOPlatformUUID")
+}
+
+type hostIDReaderLinux struct {
+ readFile fileReader
+}
+
+// read attempts to read the machine-id from /etc/machine-id followed by
+// /var/lib/dbus/machine-id. If neither location yields an ID an error will
+// be returned.
+func (r *hostIDReaderLinux) read() (string, error) {
+ if result, err := r.readFile("/etc/machine-id"); err == nil {
+ return strings.TrimSpace(result), nil
+ }
+
+ if result, err := r.readFile("/var/lib/dbus/machine-id"); err == nil {
+ return strings.TrimSpace(result), nil
+ }
+
+ return "", errors.New("host id not found in: /etc/machine-id or /var/lib/dbus/machine-id")
+}
+
+type hostIDDetector struct{}
+
+// Detect returns a *Resource containing the platform specific host id.
+func (hostIDDetector) Detect(ctx context.Context) (*Resource, error) {
+ hostID, err := hostID()
+ if err != nil {
+ return nil, err
+ }
+
+ return NewWithAttributes(
+ semconv.SchemaURL,
+ semconv.HostID(hostID),
+ ), nil
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_bsd.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_bsd.go
new file mode 100644
index 0000000..cc8b893
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_bsd.go
@@ -0,0 +1,12 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build dragonfly || freebsd || netbsd || openbsd || solaris
+// +build dragonfly freebsd netbsd openbsd solaris
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+var platformHostIDReader hostIDReader = &hostIDReaderBSD{
+ execCommand: execCommand,
+ readFile: readFile,
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_darwin.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_darwin.go
new file mode 100644
index 0000000..b09fde3
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_darwin.go
@@ -0,0 +1,8 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+var platformHostIDReader hostIDReader = &hostIDReaderDarwin{
+ execCommand: execCommand,
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_exec.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_exec.go
new file mode 100644
index 0000000..d9e5d1a
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_exec.go
@@ -0,0 +1,18 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build darwin || dragonfly || freebsd || netbsd || openbsd || solaris
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import "os/exec"
+
+func execCommand(name string, arg ...string) (string, error) {
+ cmd := exec.Command(name, arg...)
+ b, err := cmd.Output()
+ if err != nil {
+ return "", err
+ }
+
+ return string(b), nil
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_linux.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_linux.go
new file mode 100644
index 0000000..f84f173
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_linux.go
@@ -0,0 +1,11 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build linux
+// +build linux
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+var platformHostIDReader hostIDReader = &hostIDReaderLinux{
+ readFile: readFile,
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_readfile.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_readfile.go
new file mode 100644
index 0000000..6354b35
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_readfile.go
@@ -0,0 +1,17 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build linux || dragonfly || freebsd || netbsd || openbsd || solaris
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import "os"
+
+func readFile(filename string) (string, error) {
+ b, err := os.ReadFile(filename)
+ if err != nil {
+ return "", err
+ }
+
+ return string(b), nil
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_unsupported.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_unsupported.go
new file mode 100644
index 0000000..df12c44
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_unsupported.go
@@ -0,0 +1,19 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows
+// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+// hostIDReaderUnsupported is a placeholder implementation for operating systems
+// for which this project currently doesn't support host.id
+// attribute detection. See build tags declaration early on this file
+// for a list of unsupported OSes.
+type hostIDReaderUnsupported struct{}
+
+func (*hostIDReaderUnsupported) read() (string, error) {
+ return "<unknown>", nil
+}
+
+var platformHostIDReader hostIDReader = &hostIDReaderUnsupported{}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_windows.go b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_windows.go
new file mode 100644
index 0000000..3677c83
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/host_id_windows.go
@@ -0,0 +1,36 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build windows
+// +build windows
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "golang.org/x/sys/windows/registry"
+)
+
+// implements hostIDReader.
+type hostIDReaderWindows struct{}
+
+// read reads MachineGuid from the Windows registry key:
+// SOFTWARE\Microsoft\Cryptography.
+func (*hostIDReaderWindows) read() (string, error) {
+ k, err := registry.OpenKey(
+ registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Cryptography`,
+ registry.QUERY_VALUE|registry.WOW64_64KEY,
+ )
+ if err != nil {
+ return "", err
+ }
+ defer k.Close()
+
+ guid, _, err := k.GetStringValue("MachineGuid")
+ if err != nil {
+ return "", err
+ }
+
+ return guid, nil
+}
+
+var platformHostIDReader hostIDReader = &hostIDReaderWindows{}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/os.go b/vendor/go.opentelemetry.io/otel/sdk/resource/os.go
new file mode 100644
index 0000000..01b4d27
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/os.go
@@ -0,0 +1,89 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+ "strings"
+
+ "go.opentelemetry.io/otel/attribute"
+ semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
+)
+
+type osDescriptionProvider func() (string, error)
+
+var defaultOSDescriptionProvider osDescriptionProvider = platformOSDescription
+
+var osDescription = defaultOSDescriptionProvider
+
+func setDefaultOSDescriptionProvider() {
+ setOSDescriptionProvider(defaultOSDescriptionProvider)
+}
+
+func setOSDescriptionProvider(osDescriptionProvider osDescriptionProvider) {
+ osDescription = osDescriptionProvider
+}
+
+type (
+ osTypeDetector struct{}
+ osDescriptionDetector struct{}
+)
+
+// Detect returns a *Resource that describes the operating system type the
+// service is running on.
+func (osTypeDetector) Detect(ctx context.Context) (*Resource, error) {
+ osType := runtimeOS()
+
+ osTypeAttribute := mapRuntimeOSToSemconvOSType(osType)
+
+ return NewWithAttributes(
+ semconv.SchemaURL,
+ osTypeAttribute,
+ ), nil
+}
+
+// Detect returns a *Resource that describes the operating system the
+// service is running on.
+func (osDescriptionDetector) Detect(ctx context.Context) (*Resource, error) {
+ description, err := osDescription()
+ if err != nil {
+ return nil, err
+ }
+
+ return NewWithAttributes(
+ semconv.SchemaURL,
+ semconv.OSDescription(description),
+ ), nil
+}
+
+// mapRuntimeOSToSemconvOSType translates the OS name as provided by the Go runtime
+// into an OS type attribute with the corresponding value defined by the semantic
+// conventions. In case the provided OS name isn't mapped, it's transformed to lowercase
+// and used as the value for the returned OS type attribute.
+func mapRuntimeOSToSemconvOSType(osType string) attribute.KeyValue {
+ // the elements in this map are the intersection between
+ // available GOOS values and defined semconv OS types
+ osTypeAttributeMap := map[string]attribute.KeyValue{
+ "aix": semconv.OSTypeAIX,
+ "darwin": semconv.OSTypeDarwin,
+ "dragonfly": semconv.OSTypeDragonflyBSD,
+ "freebsd": semconv.OSTypeFreeBSD,
+ "linux": semconv.OSTypeLinux,
+ "netbsd": semconv.OSTypeNetBSD,
+ "openbsd": semconv.OSTypeOpenBSD,
+ "solaris": semconv.OSTypeSolaris,
+ "windows": semconv.OSTypeWindows,
+ "zos": semconv.OSTypeZOS,
+ }
+
+ var osTypeAttribute attribute.KeyValue
+
+ if attr, ok := osTypeAttributeMap[osType]; ok {
+ osTypeAttribute = attr
+ } else {
+ osTypeAttribute = semconv.OSTypeKey.String(strings.ToLower(osType))
+ }
+
+ return osTypeAttribute
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/os_release_darwin.go b/vendor/go.opentelemetry.io/otel/sdk/resource/os_release_darwin.go
new file mode 100644
index 0000000..3d703c5
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/os_release_darwin.go
@@ -0,0 +1,92 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "encoding/xml"
+ "errors"
+ "fmt"
+ "io"
+ "os"
+)
+
+type plist struct {
+ XMLName xml.Name `xml:"plist"`
+ Dict dict `xml:"dict"`
+}
+
+type dict struct {
+ Key []string `xml:"key"`
+ String []string `xml:"string"`
+}
+
+// osRelease builds a string describing the operating system release based on the
+// contents of the property list (.plist) system files. If no .plist files are found,
+// or if the required properties to build the release description string are missing,
+// an empty string is returned instead. The generated string resembles the output of
+// the `sw_vers` commandline program, but in a single-line string. For more information
+// about the `sw_vers` program, see: https://www.unix.com/man-page/osx/1/SW_VERS.
+func osRelease() string {
+ file, err := getPlistFile()
+ if err != nil {
+ return ""
+ }
+
+ defer file.Close()
+
+ values, err := parsePlistFile(file)
+ if err != nil {
+ return ""
+ }
+
+ return buildOSRelease(values)
+}
+
+// getPlistFile returns a *os.File pointing to one of the well-known .plist files
+// available on macOS. If no file can be opened, it returns an error.
+func getPlistFile() (*os.File, error) {
+ return getFirstAvailableFile([]string{
+ "/System/Library/CoreServices/SystemVersion.plist",
+ "/System/Library/CoreServices/ServerVersion.plist",
+ })
+}
+
+// parsePlistFile process the file pointed by `file` as a .plist file and returns
+// a map with the key-values for each pair of correlated <key> and <string> elements
+// contained in it.
+func parsePlistFile(file io.Reader) (map[string]string, error) {
+ var v plist
+
+ err := xml.NewDecoder(file).Decode(&v)
+ if err != nil {
+ return nil, err
+ }
+
+ if len(v.Dict.Key) != len(v.Dict.String) {
+ return nil, errors.New("the number of <key> and <string> elements doesn't match")
+ }
+
+ properties := make(map[string]string, len(v.Dict.Key))
+ for i, key := range v.Dict.Key {
+ properties[key] = v.Dict.String[i]
+ }
+
+ return properties, nil
+}
+
+// buildOSRelease builds a string describing the OS release based on the properties
+// available on the provided map. It tries to find the `ProductName`, `ProductVersion`
+// and `ProductBuildVersion` properties. If some of these properties are not found,
+// it returns an empty string.
+func buildOSRelease(properties map[string]string) string {
+ productName := properties["ProductName"]
+ productVersion := properties["ProductVersion"]
+ productBuildVersion := properties["ProductBuildVersion"]
+
+ if productName == "" || productVersion == "" || productBuildVersion == "" {
+ return ""
+ }
+
+ return fmt.Sprintf("%s %s (%s)", productName, productVersion, productBuildVersion)
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/os_release_unix.go b/vendor/go.opentelemetry.io/otel/sdk/resource/os_release_unix.go
new file mode 100644
index 0000000..f537e5c
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/os_release_unix.go
@@ -0,0 +1,143 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build aix || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
+// +build aix dragonfly freebsd linux netbsd openbsd solaris zos
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "bufio"
+ "fmt"
+ "io"
+ "os"
+ "strings"
+)
+
+// osRelease builds a string describing the operating system release based on the
+// properties of the os-release file. If no os-release file is found, or if the
+// required properties to build the release description string are missing, an empty
+// string is returned instead. For more information about os-release files, see:
+// https://www.freedesktop.org/software/systemd/man/os-release.html
+func osRelease() string {
+ file, err := getOSReleaseFile()
+ if err != nil {
+ return ""
+ }
+
+ defer file.Close()
+
+ values := parseOSReleaseFile(file)
+
+ return buildOSRelease(values)
+}
+
+// getOSReleaseFile returns a *os.File pointing to one of the well-known os-release
+// files, according to their order of preference. If no file can be opened, it
+// returns an error.
+func getOSReleaseFile() (*os.File, error) {
+ return getFirstAvailableFile([]string{"/etc/os-release", "/usr/lib/os-release"})
+}
+
+// parseOSReleaseFile process the file pointed by `file` as an os-release file and
+// returns a map with the key-values contained in it. Empty lines or lines starting
+// with a '#' character are ignored, as well as lines with the missing key=value
+// separator. Values are unquoted and unescaped.
+func parseOSReleaseFile(file io.Reader) map[string]string {
+ values := make(map[string]string)
+ scanner := bufio.NewScanner(file)
+
+ for scanner.Scan() {
+ line := scanner.Text()
+
+ if skip(line) {
+ continue
+ }
+
+ key, value, ok := parse(line)
+ if ok {
+ values[key] = value
+ }
+ }
+
+ return values
+}
+
+// skip returns true if the line is blank or starts with a '#' character, and
+// therefore should be skipped from processing.
+func skip(line string) bool {
+ line = strings.TrimSpace(line)
+
+ return len(line) == 0 || strings.HasPrefix(line, "#")
+}
+
+// parse attempts to split the provided line on the first '=' character, and then
+// sanitize each side of the split before returning them as a key-value pair.
+func parse(line string) (string, string, bool) {
+ k, v, found := strings.Cut(line, "=")
+
+ if !found || len(k) == 0 {
+ return "", "", false
+ }
+
+ key := strings.TrimSpace(k)
+ value := unescape(unquote(strings.TrimSpace(v)))
+
+ return key, value, true
+}
+
+// unquote checks whether the string `s` is quoted with double or single quotes
+// and, if so, returns a version of the string without them. Otherwise it returns
+// the provided string unchanged.
+func unquote(s string) string {
+ if len(s) < 2 {
+ return s
+ }
+
+ if (s[0] == '"' || s[0] == '\'') && s[0] == s[len(s)-1] {
+ return s[1 : len(s)-1]
+ }
+
+ return s
+}
+
+// unescape removes the `\` prefix from some characters that are expected
+// to have it added in front of them for escaping purposes.
+func unescape(s string) string {
+ return strings.NewReplacer(
+ `\$`, `$`,
+ `\"`, `"`,
+ `\'`, `'`,
+ `\\`, `\`,
+ "\\`", "`",
+ ).Replace(s)
+}
+
+// buildOSRelease builds a string describing the OS release based on the properties
+// available on the provided map. It favors a combination of the `NAME` and `VERSION`
+// properties as first option (falling back to `VERSION_ID` if `VERSION` isn't
+// found), and using `PRETTY_NAME` alone if some of the previous are not present. If
+// none of these properties are found, it returns an empty string.
+//
+// The rationale behind not using `PRETTY_NAME` as first choice was that, for some
+// Linux distributions, it doesn't include the same detail that can be found on the
+// individual `NAME` and `VERSION` properties, and combining `PRETTY_NAME` with
+// other properties can produce "pretty" redundant strings in some cases.
+func buildOSRelease(values map[string]string) string {
+ var osRelease string
+
+ name := values["NAME"]
+ version := values["VERSION"]
+
+ if version == "" {
+ version = values["VERSION_ID"]
+ }
+
+ if name != "" && version != "" {
+ osRelease = fmt.Sprintf("%s %s", name, version)
+ } else {
+ osRelease = values["PRETTY_NAME"]
+ }
+
+ return osRelease
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/os_unix.go b/vendor/go.opentelemetry.io/otel/sdk/resource/os_unix.go
new file mode 100644
index 0000000..a6ff26a
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/os_unix.go
@@ -0,0 +1,79 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "fmt"
+ "os"
+
+ "golang.org/x/sys/unix"
+)
+
+type unameProvider func(buf *unix.Utsname) (err error)
+
+var defaultUnameProvider unameProvider = unix.Uname
+
+var currentUnameProvider = defaultUnameProvider
+
+func setDefaultUnameProvider() {
+ setUnameProvider(defaultUnameProvider)
+}
+
+func setUnameProvider(unameProvider unameProvider) {
+ currentUnameProvider = unameProvider
+}
+
+// platformOSDescription returns a human readable OS version information string.
+// The final string combines OS release information (where available) and the
+// result of the `uname` system call.
+func platformOSDescription() (string, error) {
+ uname, err := uname()
+ if err != nil {
+ return "", err
+ }
+
+ osRelease := osRelease()
+ if osRelease != "" {
+ return fmt.Sprintf("%s (%s)", osRelease, uname), nil
+ }
+
+ return uname, nil
+}
+
+// uname issues a uname(2) system call (or equivalent on systems which doesn't
+// have one) and formats the output in a single string, similar to the output
+// of the `uname` commandline program. The final string resembles the one
+// obtained with a call to `uname -snrvm`.
+func uname() (string, error) {
+ var utsName unix.Utsname
+
+ err := currentUnameProvider(&utsName)
+ if err != nil {
+ return "", err
+ }
+
+ return fmt.Sprintf("%s %s %s %s %s",
+ unix.ByteSliceToString(utsName.Sysname[:]),
+ unix.ByteSliceToString(utsName.Nodename[:]),
+ unix.ByteSliceToString(utsName.Release[:]),
+ unix.ByteSliceToString(utsName.Version[:]),
+ unix.ByteSliceToString(utsName.Machine[:]),
+ ), nil
+}
+
+// getFirstAvailableFile returns an *os.File of the first available
+// file from a list of candidate file paths.
+func getFirstAvailableFile(candidates []string) (*os.File, error) {
+ for _, c := range candidates {
+ file, err := os.Open(c)
+ if err == nil {
+ return file, nil
+ }
+ }
+
+ return nil, fmt.Errorf("no candidate file available: %v", candidates)
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/os_unsupported.go b/vendor/go.opentelemetry.io/otel/sdk/resource/os_unsupported.go
new file mode 100644
index 0000000..a77742b
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/os_unsupported.go
@@ -0,0 +1,15 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+// platformOSDescription is a placeholder implementation for OSes
+// for which this project currently doesn't support os.description
+// attribute detection. See build tags declaration early on this file
+// for a list of unsupported OSes.
+func platformOSDescription() (string, error) {
+ return "<unknown>", nil
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/os_windows.go b/vendor/go.opentelemetry.io/otel/sdk/resource/os_windows.go
new file mode 100644
index 0000000..a6a5a53
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/os_windows.go
@@ -0,0 +1,89 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "fmt"
+ "strconv"
+
+ "golang.org/x/sys/windows/registry"
+)
+
+// platformOSDescription returns a human readable OS version information string.
+// It does so by querying registry values under the
+// `SOFTWARE\Microsoft\Windows NT\CurrentVersion` key. The final string
+// resembles the one displayed by the Version Reporter Applet (winver.exe).
+func platformOSDescription() (string, error) {
+ k, err := registry.OpenKey(
+ registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
+ if err != nil {
+ return "", err
+ }
+
+ defer k.Close()
+
+ var (
+ productName = readProductName(k)
+ displayVersion = readDisplayVersion(k)
+ releaseID = readReleaseID(k)
+ currentMajorVersionNumber = readCurrentMajorVersionNumber(k)
+ currentMinorVersionNumber = readCurrentMinorVersionNumber(k)
+ currentBuildNumber = readCurrentBuildNumber(k)
+ ubr = readUBR(k)
+ )
+
+ if displayVersion != "" {
+ displayVersion += " "
+ }
+
+ return fmt.Sprintf("%s %s(%s) [Version %s.%s.%s.%s]",
+ productName,
+ displayVersion,
+ releaseID,
+ currentMajorVersionNumber,
+ currentMinorVersionNumber,
+ currentBuildNumber,
+ ubr,
+ ), nil
+}
+
+func getStringValue(name string, k registry.Key) string {
+ value, _, _ := k.GetStringValue(name)
+
+ return value
+}
+
+func getIntegerValue(name string, k registry.Key) uint64 {
+ value, _, _ := k.GetIntegerValue(name)
+
+ return value
+}
+
+func readProductName(k registry.Key) string {
+ return getStringValue("ProductName", k)
+}
+
+func readDisplayVersion(k registry.Key) string {
+ return getStringValue("DisplayVersion", k)
+}
+
+func readReleaseID(k registry.Key) string {
+ return getStringValue("ReleaseID", k)
+}
+
+func readCurrentMajorVersionNumber(k registry.Key) string {
+ return strconv.FormatUint(getIntegerValue("CurrentMajorVersionNumber", k), 10)
+}
+
+func readCurrentMinorVersionNumber(k registry.Key) string {
+ return strconv.FormatUint(getIntegerValue("CurrentMinorVersionNumber", k), 10)
+}
+
+func readCurrentBuildNumber(k registry.Key) string {
+ return getStringValue("CurrentBuildNumber", k)
+}
+
+func readUBR(k registry.Key) string {
+ return strconv.FormatUint(getIntegerValue("UBR", k), 10)
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/process.go b/vendor/go.opentelemetry.io/otel/sdk/resource/process.go
new file mode 100644
index 0000000..6712ce8
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/process.go
@@ -0,0 +1,173 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+ "fmt"
+ "os"
+ "os/user"
+ "path/filepath"
+ "runtime"
+
+ semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
+)
+
+type (
+ pidProvider func() int
+ executablePathProvider func() (string, error)
+ commandArgsProvider func() []string
+ ownerProvider func() (*user.User, error)
+ runtimeNameProvider func() string
+ runtimeVersionProvider func() string
+ runtimeOSProvider func() string
+ runtimeArchProvider func() string
+)
+
+var (
+ defaultPidProvider pidProvider = os.Getpid
+ defaultExecutablePathProvider executablePathProvider = os.Executable
+ defaultCommandArgsProvider commandArgsProvider = func() []string { return os.Args }
+ defaultOwnerProvider ownerProvider = user.Current
+ defaultRuntimeNameProvider runtimeNameProvider = func() string {
+ if runtime.Compiler == "gc" {
+ return "go"
+ }
+ return runtime.Compiler
+ }
+ defaultRuntimeVersionProvider runtimeVersionProvider = runtime.Version
+ defaultRuntimeOSProvider runtimeOSProvider = func() string { return runtime.GOOS }
+ defaultRuntimeArchProvider runtimeArchProvider = func() string { return runtime.GOARCH }
+)
+
+var (
+ pid = defaultPidProvider
+ executablePath = defaultExecutablePathProvider
+ commandArgs = defaultCommandArgsProvider
+ owner = defaultOwnerProvider
+ runtimeName = defaultRuntimeNameProvider
+ runtimeVersion = defaultRuntimeVersionProvider
+ runtimeOS = defaultRuntimeOSProvider
+ runtimeArch = defaultRuntimeArchProvider
+)
+
+func setDefaultOSProviders() {
+ setOSProviders(
+ defaultPidProvider,
+ defaultExecutablePathProvider,
+ defaultCommandArgsProvider,
+ )
+}
+
+func setOSProviders(
+ pidProvider pidProvider,
+ executablePathProvider executablePathProvider,
+ commandArgsProvider commandArgsProvider,
+) {
+ pid = pidProvider
+ executablePath = executablePathProvider
+ commandArgs = commandArgsProvider
+}
+
+func setDefaultRuntimeProviders() {
+ setRuntimeProviders(
+ defaultRuntimeNameProvider,
+ defaultRuntimeVersionProvider,
+ defaultRuntimeOSProvider,
+ defaultRuntimeArchProvider,
+ )
+}
+
+func setRuntimeProviders(
+ runtimeNameProvider runtimeNameProvider,
+ runtimeVersionProvider runtimeVersionProvider,
+ runtimeOSProvider runtimeOSProvider,
+ runtimeArchProvider runtimeArchProvider,
+) {
+ runtimeName = runtimeNameProvider
+ runtimeVersion = runtimeVersionProvider
+ runtimeOS = runtimeOSProvider
+ runtimeArch = runtimeArchProvider
+}
+
+func setDefaultUserProviders() {
+ setUserProviders(defaultOwnerProvider)
+}
+
+func setUserProviders(ownerProvider ownerProvider) {
+ owner = ownerProvider
+}
+
+type (
+ processPIDDetector struct{}
+ processExecutableNameDetector struct{}
+ processExecutablePathDetector struct{}
+ processCommandArgsDetector struct{}
+ processOwnerDetector struct{}
+ processRuntimeNameDetector struct{}
+ processRuntimeVersionDetector struct{}
+ processRuntimeDescriptionDetector struct{}
+)
+
+// Detect returns a *Resource that describes the process identifier (PID) of the
+// executing process.
+func (processPIDDetector) Detect(ctx context.Context) (*Resource, error) {
+ return NewWithAttributes(semconv.SchemaURL, semconv.ProcessPID(pid())), nil
+}
+
+// Detect returns a *Resource that describes the name of the process executable.
+func (processExecutableNameDetector) Detect(ctx context.Context) (*Resource, error) {
+ executableName := filepath.Base(commandArgs()[0])
+
+ return NewWithAttributes(semconv.SchemaURL, semconv.ProcessExecutableName(executableName)), nil
+}
+
+// Detect returns a *Resource that describes the full path of the process executable.
+func (processExecutablePathDetector) Detect(ctx context.Context) (*Resource, error) {
+ executablePath, err := executablePath()
+ if err != nil {
+ return nil, err
+ }
+
+ return NewWithAttributes(semconv.SchemaURL, semconv.ProcessExecutablePath(executablePath)), nil
+}
+
+// Detect returns a *Resource that describes all the command arguments as received
+// by the process.
+func (processCommandArgsDetector) Detect(ctx context.Context) (*Resource, error) {
+ return NewWithAttributes(semconv.SchemaURL, semconv.ProcessCommandArgs(commandArgs()...)), nil
+}
+
+// Detect returns a *Resource that describes the username of the user that owns the
+// process.
+func (processOwnerDetector) Detect(ctx context.Context) (*Resource, error) {
+ owner, err := owner()
+ if err != nil {
+ return nil, err
+ }
+
+ return NewWithAttributes(semconv.SchemaURL, semconv.ProcessOwner(owner.Username)), nil
+}
+
+// Detect returns a *Resource that describes the name of the compiler used to compile
+// this process image.
+func (processRuntimeNameDetector) Detect(ctx context.Context) (*Resource, error) {
+ return NewWithAttributes(semconv.SchemaURL, semconv.ProcessRuntimeName(runtimeName())), nil
+}
+
+// Detect returns a *Resource that describes the version of the runtime of this process.
+func (processRuntimeVersionDetector) Detect(ctx context.Context) (*Resource, error) {
+ return NewWithAttributes(semconv.SchemaURL, semconv.ProcessRuntimeVersion(runtimeVersion())), nil
+}
+
+// Detect returns a *Resource that describes the runtime of this process.
+func (processRuntimeDescriptionDetector) Detect(ctx context.Context) (*Resource, error) {
+ runtimeDescription := fmt.Sprintf(
+ "go version %s %s/%s", runtimeVersion(), runtimeOS(), runtimeArch())
+
+ return NewWithAttributes(
+ semconv.SchemaURL,
+ semconv.ProcessRuntimeDescription(runtimeDescription),
+ ), nil
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/resource/resource.go b/vendor/go.opentelemetry.io/otel/sdk/resource/resource.go
new file mode 100644
index 0000000..09b91e1
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/resource/resource.go
@@ -0,0 +1,309 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package resource // import "go.opentelemetry.io/otel/sdk/resource"
+
+import (
+ "context"
+ "errors"
+ "fmt"
+ "sync"
+
+ "go.opentelemetry.io/otel"
+ "go.opentelemetry.io/otel/attribute"
+ "go.opentelemetry.io/otel/sdk/internal/x"
+)
+
+// Resource describes an entity about which identifying information
+// and metadata is exposed. Resource is an immutable object,
+// equivalent to a map from key to unique value.
+//
+// Resources should be passed and stored as pointers
+// (`*resource.Resource`). The `nil` value is equivalent to an empty
+// Resource.
+//
+// Note that the Go == operator compares not just the resource attributes but
+// also all other internals of the Resource type. Therefore, Resource values
+// should not be used as map or database keys. In general, the [Resource.Equal]
+// method should be used instead of direct comparison with ==, since that
+// method ensures the correct comparison of resource attributes, and the
+// [attribute.Distinct] returned from [Resource.Equivalent] should be used for
+// map and database keys instead.
+type Resource struct {
+ attrs attribute.Set
+ schemaURL string
+}
+
+// Compile-time check that the Resource remains comparable.
+var _ map[Resource]struct{} = nil
+
+var (
+ defaultResource *Resource
+ defaultResourceOnce sync.Once
+)
+
+// ErrSchemaURLConflict is an error returned when two Resources are merged
+// together that contain different, non-empty, schema URLs.
+var ErrSchemaURLConflict = errors.New("conflicting Schema URL")
+
+// New returns a [Resource] built using opts.
+//
+// This may return a partial Resource along with an error containing
+// [ErrPartialResource] if options that provide a [Detector] are used and that
+// error is returned from one or more of the Detectors. It may also return a
+// merge-conflict Resource along with an error containing
+// [ErrSchemaURLConflict] if merging Resources from the opts results in a
+// schema URL conflict (see [Resource.Merge] for more information). It is up to
+// the caller to determine if this returned Resource should be used or not
+// based on these errors.
+func New(ctx context.Context, opts ...Option) (*Resource, error) {
+ cfg := config{}
+ for _, opt := range opts {
+ cfg = opt.apply(cfg)
+ }
+
+ r := &Resource{schemaURL: cfg.schemaURL}
+ return r, detect(ctx, r, cfg.detectors)
+}
+
+// NewWithAttributes creates a resource from attrs and associates the resource with a
+// schema URL. If attrs contains duplicate keys, the last value will be used. If attrs
+// contains any invalid items those items will be dropped. The attrs are assumed to be
+// in a schema identified by schemaURL.
+func NewWithAttributes(schemaURL string, attrs ...attribute.KeyValue) *Resource {
+ resource := NewSchemaless(attrs...)
+ resource.schemaURL = schemaURL
+ return resource
+}
+
+// NewSchemaless creates a resource from attrs. If attrs contains duplicate keys,
+// the last value will be used. If attrs contains any invalid items those items will
+// be dropped. The resource will not be associated with a schema URL. If the schema
+// of the attrs is known use NewWithAttributes instead.
+func NewSchemaless(attrs ...attribute.KeyValue) *Resource {
+ if len(attrs) == 0 {
+ return &Resource{}
+ }
+
+ // Ensure attributes comply with the specification:
+ // https://github.com/open-telemetry/opentelemetry-specification/blob/v1.20.0/specification/common/README.md#attribute
+ s, _ := attribute.NewSetWithFiltered(attrs, func(kv attribute.KeyValue) bool {
+ return kv.Valid()
+ })
+
+ // If attrs only contains invalid entries do not allocate a new resource.
+ if s.Len() == 0 {
+ return &Resource{}
+ }
+
+ return &Resource{attrs: s} //nolint
+}
+
+// String implements the Stringer interface and provides a
+// human-readable form of the resource.
+//
+// Avoid using this representation as the key in a map of resources,
+// use Equivalent() as the key instead.
+func (r *Resource) String() string {
+ if r == nil {
+ return ""
+ }
+ return r.attrs.Encoded(attribute.DefaultEncoder())
+}
+
+// MarshalLog is the marshaling function used by the logging system to represent this Resource.
+func (r *Resource) MarshalLog() interface{} {
+ return struct {
+ Attributes attribute.Set
+ SchemaURL string
+ }{
+ Attributes: r.attrs,
+ SchemaURL: r.schemaURL,
+ }
+}
+
+// Attributes returns a copy of attributes from the resource in a sorted order.
+// To avoid allocating a new slice, use an iterator.
+func (r *Resource) Attributes() []attribute.KeyValue {
+ if r == nil {
+ r = Empty()
+ }
+ return r.attrs.ToSlice()
+}
+
+// SchemaURL returns the schema URL associated with Resource r.
+func (r *Resource) SchemaURL() string {
+ if r == nil {
+ return ""
+ }
+ return r.schemaURL
+}
+
+// Iter returns an iterator of the Resource attributes.
+// This is ideal to use if you do not want a copy of the attributes.
+func (r *Resource) Iter() attribute.Iterator {
+ if r == nil {
+ r = Empty()
+ }
+ return r.attrs.Iter()
+}
+
+// Equal returns whether r and o represent the same resource. Two resources can
+// be equal even if they have different schema URLs.
+//
+// See the documentation on the [Resource] type for the pitfalls of using ==
+// with Resource values; most code should use Equal instead.
+func (r *Resource) Equal(o *Resource) bool {
+ if r == nil {
+ r = Empty()
+ }
+ if o == nil {
+ o = Empty()
+ }
+ return r.Equivalent() == o.Equivalent()
+}
+
+// Merge creates a new [Resource] by merging a and b.
+//
+// If there are common keys between a and b, then the value from b will
+// overwrite the value from a, even if b's value is empty.
+//
+// The SchemaURL of the resources will be merged according to the
+// [OpenTelemetry specification rules]:
+//
+// - If a's schema URL is empty then the returned Resource's schema URL will
+// be set to the schema URL of b,
+// - Else if b's schema URL is empty then the returned Resource's schema URL
+// will be set to the schema URL of a,
+// - Else if the schema URLs of a and b are the same then that will be the
+// schema URL of the returned Resource,
+// - Else this is a merging error. If the resources have different,
+// non-empty, schema URLs an error containing [ErrSchemaURLConflict] will
+// be returned with the merged Resource. The merged Resource will have an
+// empty schema URL. It may be the case that some unintended attributes
+// have been overwritten or old semantic conventions persisted in the
+// returned Resource. It is up to the caller to determine if this returned
+// Resource should be used or not.
+//
+// [OpenTelemetry specification rules]: https://github.com/open-telemetry/opentelemetry-specification/blob/v1.20.0/specification/resource/sdk.md#merge
+func Merge(a, b *Resource) (*Resource, error) {
+ if a == nil && b == nil {
+ return Empty(), nil
+ }
+ if a == nil {
+ return b, nil
+ }
+ if b == nil {
+ return a, nil
+ }
+
+ // Note: 'b' attributes will overwrite 'a' with last-value-wins in attribute.Key()
+ // Meaning this is equivalent to: append(a.Attributes(), b.Attributes()...)
+ mi := attribute.NewMergeIterator(b.Set(), a.Set())
+ combine := make([]attribute.KeyValue, 0, a.Len()+b.Len())
+ for mi.Next() {
+ combine = append(combine, mi.Attribute())
+ }
+
+ switch {
+ case a.schemaURL == "":
+ return NewWithAttributes(b.schemaURL, combine...), nil
+ case b.schemaURL == "":
+ return NewWithAttributes(a.schemaURL, combine...), nil
+ case a.schemaURL == b.schemaURL:
+ return NewWithAttributes(a.schemaURL, combine...), nil
+ }
+ // Return the merged resource with an appropriate error. It is up to
+ // the user to decide if the returned resource can be used or not.
+ return NewSchemaless(combine...), fmt.Errorf(
+ "%w: %s and %s",
+ ErrSchemaURLConflict,
+ a.schemaURL,
+ b.schemaURL,
+ )
+}
+
+// Empty returns an instance of Resource with no attributes. It is
+// equivalent to a `nil` Resource.
+func Empty() *Resource {
+ return &Resource{}
+}
+
+// Default returns an instance of Resource with a default
+// "service.name" and OpenTelemetrySDK attributes.
+func Default() *Resource {
+ defaultResourceOnce.Do(func() {
+ var err error
+ defaultDetectors := []Detector{
+ defaultServiceNameDetector{},
+ fromEnv{},
+ telemetrySDK{},
+ }
+ if x.Resource.Enabled() {
+ defaultDetectors = append([]Detector{defaultServiceInstanceIDDetector{}}, defaultDetectors...)
+ }
+ defaultResource, err = Detect(
+ context.Background(),
+ defaultDetectors...,
+ )
+ if err != nil {
+ otel.Handle(err)
+ }
+ // If Detect did not return a valid resource, fall back to emptyResource.
+ if defaultResource == nil {
+ defaultResource = &Resource{}
+ }
+ })
+ return defaultResource
+}
+
+// Environment returns an instance of Resource with attributes
+// extracted from the OTEL_RESOURCE_ATTRIBUTES environment variable.
+func Environment() *Resource {
+ detector := &fromEnv{}
+ resource, err := detector.Detect(context.Background())
+ if err != nil {
+ otel.Handle(err)
+ }
+ return resource
+}
+
+// Equivalent returns an object that can be compared for equality
+// between two resources. This value is suitable for use as a key in
+// a map.
+func (r *Resource) Equivalent() attribute.Distinct {
+ return r.Set().Equivalent()
+}
+
+// Set returns the equivalent *attribute.Set of this resource's attributes.
+func (r *Resource) Set() *attribute.Set {
+ if r == nil {
+ r = Empty()
+ }
+ return &r.attrs
+}
+
+// MarshalJSON encodes the resource attributes as a JSON list of { "Key":
+// "...", "Value": ... } pairs in order sorted by key.
+func (r *Resource) MarshalJSON() ([]byte, error) {
+ if r == nil {
+ r = Empty()
+ }
+ return r.attrs.MarshalJSON()
+}
+
+// Len returns the number of unique key-values in this Resource.
+func (r *Resource) Len() int {
+ if r == nil {
+ return 0
+ }
+ return r.attrs.Len()
+}
+
+// Encoded returns an encoded representation of the resource.
+func (r *Resource) Encoded(enc attribute.Encoder) string {
+ if r == nil {
+ return ""
+ }
+ return r.attrs.Encoded(enc)
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/README.md b/vendor/go.opentelemetry.io/otel/sdk/trace/README.md
new file mode 100644
index 0000000..f2936e1
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/README.md
@@ -0,0 +1,3 @@
+# SDK Trace
+
+[](https://pkg.go.dev/go.opentelemetry.io/otel/sdk/trace)
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/batch_span_processor.go b/vendor/go.opentelemetry.io/otel/sdk/trace/batch_span_processor.go
new file mode 100644
index 0000000..6966ed8
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/batch_span_processor.go
@@ -0,0 +1,414 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "errors"
+ "sync"
+ "sync/atomic"
+ "time"
+
+ "go.opentelemetry.io/otel"
+ "go.opentelemetry.io/otel/internal/global"
+ "go.opentelemetry.io/otel/sdk/internal/env"
+ "go.opentelemetry.io/otel/trace"
+)
+
+// Defaults for BatchSpanProcessorOptions.
+const (
+ DefaultMaxQueueSize = 2048
+ DefaultScheduleDelay = 5000
+ DefaultExportTimeout = 30000
+ DefaultMaxExportBatchSize = 512
+)
+
+// BatchSpanProcessorOption configures a BatchSpanProcessor.
+type BatchSpanProcessorOption func(o *BatchSpanProcessorOptions)
+
+// BatchSpanProcessorOptions is configuration settings for a
+// BatchSpanProcessor.
+type BatchSpanProcessorOptions struct {
+ // MaxQueueSize is the maximum queue size to buffer spans for delayed processing. If the
+ // queue gets full it drops the spans. Use BlockOnQueueFull to change this behavior.
+ // The default value of MaxQueueSize is 2048.
+ MaxQueueSize int
+
+ // BatchTimeout is the maximum duration for constructing a batch. Processor
+ // forcefully sends available spans when timeout is reached.
+ // The default value of BatchTimeout is 5000 msec.
+ BatchTimeout time.Duration
+
+ // ExportTimeout specifies the maximum duration for exporting spans. If the timeout
+ // is reached, the export will be cancelled.
+ // The default value of ExportTimeout is 30000 msec.
+ ExportTimeout time.Duration
+
+ // MaxExportBatchSize is the maximum number of spans to process in a single batch.
+ // If there are more than one batch worth of spans then it processes multiple batches
+ // of spans one batch after the other without any delay.
+ // The default value of MaxExportBatchSize is 512.
+ MaxExportBatchSize int
+
+ // BlockOnQueueFull blocks onEnd() and onStart() method if the queue is full
+ // AND if BlockOnQueueFull is set to true.
+ // Blocking option should be used carefully as it can severely affect the performance of an
+ // application.
+ BlockOnQueueFull bool
+}
+
+// batchSpanProcessor is a SpanProcessor that batches asynchronously-received
+// spans and sends them to a trace.Exporter when complete.
+type batchSpanProcessor struct {
+ e SpanExporter
+ o BatchSpanProcessorOptions
+
+ queue chan ReadOnlySpan
+ dropped uint32
+
+ batch []ReadOnlySpan
+ batchMutex sync.Mutex
+ timer *time.Timer
+ stopWait sync.WaitGroup
+ stopOnce sync.Once
+ stopCh chan struct{}
+ stopped atomic.Bool
+}
+
+var _ SpanProcessor = (*batchSpanProcessor)(nil)
+
+// NewBatchSpanProcessor creates a new SpanProcessor that will send completed
+// span batches to the exporter with the supplied options.
+//
+// If the exporter is nil, the span processor will perform no action.
+func NewBatchSpanProcessor(exporter SpanExporter, options ...BatchSpanProcessorOption) SpanProcessor {
+ maxQueueSize := env.BatchSpanProcessorMaxQueueSize(DefaultMaxQueueSize)
+ maxExportBatchSize := env.BatchSpanProcessorMaxExportBatchSize(DefaultMaxExportBatchSize)
+
+ if maxExportBatchSize > maxQueueSize {
+ if DefaultMaxExportBatchSize > maxQueueSize {
+ maxExportBatchSize = maxQueueSize
+ } else {
+ maxExportBatchSize = DefaultMaxExportBatchSize
+ }
+ }
+
+ o := BatchSpanProcessorOptions{
+ BatchTimeout: time.Duration(env.BatchSpanProcessorScheduleDelay(DefaultScheduleDelay)) * time.Millisecond,
+ ExportTimeout: time.Duration(env.BatchSpanProcessorExportTimeout(DefaultExportTimeout)) * time.Millisecond,
+ MaxQueueSize: maxQueueSize,
+ MaxExportBatchSize: maxExportBatchSize,
+ }
+ for _, opt := range options {
+ opt(&o)
+ }
+ bsp := &batchSpanProcessor{
+ e: exporter,
+ o: o,
+ batch: make([]ReadOnlySpan, 0, o.MaxExportBatchSize),
+ timer: time.NewTimer(o.BatchTimeout),
+ queue: make(chan ReadOnlySpan, o.MaxQueueSize),
+ stopCh: make(chan struct{}),
+ }
+
+ bsp.stopWait.Add(1)
+ go func() {
+ defer bsp.stopWait.Done()
+ bsp.processQueue()
+ bsp.drainQueue()
+ }()
+
+ return bsp
+}
+
+// OnStart method does nothing.
+func (bsp *batchSpanProcessor) OnStart(parent context.Context, s ReadWriteSpan) {}
+
+// OnEnd method enqueues a ReadOnlySpan for later processing.
+func (bsp *batchSpanProcessor) OnEnd(s ReadOnlySpan) {
+ // Do not enqueue spans after Shutdown.
+ if bsp.stopped.Load() {
+ return
+ }
+
+ // Do not enqueue spans if we are just going to drop them.
+ if bsp.e == nil {
+ return
+ }
+ bsp.enqueue(s)
+}
+
+// Shutdown flushes the queue and waits until all spans are processed.
+// It only executes once. Subsequent call does nothing.
+func (bsp *batchSpanProcessor) Shutdown(ctx context.Context) error {
+ var err error
+ bsp.stopOnce.Do(func() {
+ bsp.stopped.Store(true)
+ wait := make(chan struct{})
+ go func() {
+ close(bsp.stopCh)
+ bsp.stopWait.Wait()
+ if bsp.e != nil {
+ if err := bsp.e.Shutdown(ctx); err != nil {
+ otel.Handle(err)
+ }
+ }
+ close(wait)
+ }()
+ // Wait until the wait group is done or the context is cancelled
+ select {
+ case <-wait:
+ case <-ctx.Done():
+ err = ctx.Err()
+ }
+ })
+ return err
+}
+
+type forceFlushSpan struct {
+ ReadOnlySpan
+ flushed chan struct{}
+}
+
+func (f forceFlushSpan) SpanContext() trace.SpanContext {
+ return trace.NewSpanContext(trace.SpanContextConfig{TraceFlags: trace.FlagsSampled})
+}
+
+// ForceFlush exports all ended spans that have not yet been exported.
+func (bsp *batchSpanProcessor) ForceFlush(ctx context.Context) error {
+ // Interrupt if context is already canceled.
+ if err := ctx.Err(); err != nil {
+ return err
+ }
+
+ // Do nothing after Shutdown.
+ if bsp.stopped.Load() {
+ return nil
+ }
+
+ var err error
+ if bsp.e != nil {
+ flushCh := make(chan struct{})
+ if bsp.enqueueBlockOnQueueFull(ctx, forceFlushSpan{flushed: flushCh}) {
+ select {
+ case <-bsp.stopCh:
+ // The batchSpanProcessor is Shutdown.
+ return nil
+ case <-flushCh:
+ // Processed any items in queue prior to ForceFlush being called
+ case <-ctx.Done():
+ return ctx.Err()
+ }
+ }
+
+ wait := make(chan error, 1)
+ go func() {
+ wait <- bsp.exportSpans(ctx)
+ }()
+ // Wait until the export is finished or the context is cancelled/timed out
+ select {
+ case err = <-wait:
+ case <-ctx.Done():
+ err = ctx.Err()
+ }
+ }
+ return err
+}
+
+// WithMaxQueueSize returns a BatchSpanProcessorOption that configures the
+// maximum queue size allowed for a BatchSpanProcessor.
+func WithMaxQueueSize(size int) BatchSpanProcessorOption {
+ return func(o *BatchSpanProcessorOptions) {
+ o.MaxQueueSize = size
+ }
+}
+
+// WithMaxExportBatchSize returns a BatchSpanProcessorOption that configures
+// the maximum export batch size allowed for a BatchSpanProcessor.
+func WithMaxExportBatchSize(size int) BatchSpanProcessorOption {
+ return func(o *BatchSpanProcessorOptions) {
+ o.MaxExportBatchSize = size
+ }
+}
+
+// WithBatchTimeout returns a BatchSpanProcessorOption that configures the
+// maximum delay allowed for a BatchSpanProcessor before it will export any
+// held span (whether the queue is full or not).
+func WithBatchTimeout(delay time.Duration) BatchSpanProcessorOption {
+ return func(o *BatchSpanProcessorOptions) {
+ o.BatchTimeout = delay
+ }
+}
+
+// WithExportTimeout returns a BatchSpanProcessorOption that configures the
+// amount of time a BatchSpanProcessor waits for an exporter to export before
+// abandoning the export.
+func WithExportTimeout(timeout time.Duration) BatchSpanProcessorOption {
+ return func(o *BatchSpanProcessorOptions) {
+ o.ExportTimeout = timeout
+ }
+}
+
+// WithBlocking returns a BatchSpanProcessorOption that configures a
+// BatchSpanProcessor to wait for enqueue operations to succeed instead of
+// dropping data when the queue is full.
+func WithBlocking() BatchSpanProcessorOption {
+ return func(o *BatchSpanProcessorOptions) {
+ o.BlockOnQueueFull = true
+ }
+}
+
+// exportSpans is a subroutine of processing and draining the queue.
+func (bsp *batchSpanProcessor) exportSpans(ctx context.Context) error {
+ bsp.timer.Reset(bsp.o.BatchTimeout)
+
+ bsp.batchMutex.Lock()
+ defer bsp.batchMutex.Unlock()
+
+ if bsp.o.ExportTimeout > 0 {
+ var cancel context.CancelFunc
+ ctx, cancel = context.WithTimeoutCause(ctx, bsp.o.ExportTimeout, errors.New("processor export timeout"))
+ defer cancel()
+ }
+
+ if l := len(bsp.batch); l > 0 {
+ global.Debug("exporting spans", "count", len(bsp.batch), "total_dropped", atomic.LoadUint32(&bsp.dropped))
+ err := bsp.e.ExportSpans(ctx, bsp.batch)
+
+ // A new batch is always created after exporting, even if the batch failed to be exported.
+ //
+ // It is up to the exporter to implement any type of retry logic if a batch is failing
+ // to be exported, since it is specific to the protocol and backend being sent to.
+ clear(bsp.batch) // Erase elements to let GC collect objects
+ bsp.batch = bsp.batch[:0]
+
+ if err != nil {
+ return err
+ }
+ }
+ return nil
+}
+
+// processQueue removes spans from the `queue` channel until processor
+// is shut down. It calls the exporter in batches of up to MaxExportBatchSize
+// waiting up to BatchTimeout to form a batch.
+func (bsp *batchSpanProcessor) processQueue() {
+ defer bsp.timer.Stop()
+
+ ctx, cancel := context.WithCancel(context.Background())
+ defer cancel()
+ for {
+ select {
+ case <-bsp.stopCh:
+ return
+ case <-bsp.timer.C:
+ if err := bsp.exportSpans(ctx); err != nil {
+ otel.Handle(err)
+ }
+ case sd := <-bsp.queue:
+ if ffs, ok := sd.(forceFlushSpan); ok {
+ close(ffs.flushed)
+ continue
+ }
+ bsp.batchMutex.Lock()
+ bsp.batch = append(bsp.batch, sd)
+ shouldExport := len(bsp.batch) >= bsp.o.MaxExportBatchSize
+ bsp.batchMutex.Unlock()
+ if shouldExport {
+ if !bsp.timer.Stop() {
+ // Handle both GODEBUG=asynctimerchan=[0|1] properly.
+ select {
+ case <-bsp.timer.C:
+ default:
+ }
+ }
+ if err := bsp.exportSpans(ctx); err != nil {
+ otel.Handle(err)
+ }
+ }
+ }
+ }
+}
+
+// drainQueue awaits the any caller that had added to bsp.stopWait
+// to finish the enqueue, then exports the final batch.
+func (bsp *batchSpanProcessor) drainQueue() {
+ ctx, cancel := context.WithCancel(context.Background())
+ defer cancel()
+ for {
+ select {
+ case sd := <-bsp.queue:
+ if _, ok := sd.(forceFlushSpan); ok {
+ // Ignore flush requests as they are not valid spans.
+ continue
+ }
+
+ bsp.batchMutex.Lock()
+ bsp.batch = append(bsp.batch, sd)
+ shouldExport := len(bsp.batch) == bsp.o.MaxExportBatchSize
+ bsp.batchMutex.Unlock()
+
+ if shouldExport {
+ if err := bsp.exportSpans(ctx); err != nil {
+ otel.Handle(err)
+ }
+ }
+ default:
+ // There are no more enqueued spans. Make final export.
+ if err := bsp.exportSpans(ctx); err != nil {
+ otel.Handle(err)
+ }
+ return
+ }
+ }
+}
+
+func (bsp *batchSpanProcessor) enqueue(sd ReadOnlySpan) {
+ ctx := context.TODO()
+ if bsp.o.BlockOnQueueFull {
+ bsp.enqueueBlockOnQueueFull(ctx, sd)
+ } else {
+ bsp.enqueueDrop(ctx, sd)
+ }
+}
+
+func (bsp *batchSpanProcessor) enqueueBlockOnQueueFull(ctx context.Context, sd ReadOnlySpan) bool {
+ if !sd.SpanContext().IsSampled() {
+ return false
+ }
+
+ select {
+ case bsp.queue <- sd:
+ return true
+ case <-ctx.Done():
+ return false
+ }
+}
+
+func (bsp *batchSpanProcessor) enqueueDrop(_ context.Context, sd ReadOnlySpan) bool {
+ if !sd.SpanContext().IsSampled() {
+ return false
+ }
+
+ select {
+ case bsp.queue <- sd:
+ return true
+ default:
+ atomic.AddUint32(&bsp.dropped, 1)
+ }
+ return false
+}
+
+// MarshalLog is the marshaling function used by the logging system to represent this Span Processor.
+func (bsp *batchSpanProcessor) MarshalLog() interface{} {
+ return struct {
+ Type string
+ SpanExporter SpanExporter
+ Config BatchSpanProcessorOptions
+ }{
+ Type: "BatchSpanProcessor",
+ SpanExporter: bsp.e,
+ Config: bsp.o,
+ }
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/doc.go b/vendor/go.opentelemetry.io/otel/sdk/trace/doc.go
new file mode 100644
index 0000000..1f60524
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/doc.go
@@ -0,0 +1,10 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+/*
+Package trace contains support for OpenTelemetry distributed tracing.
+
+The following assumes a basic familiarity with OpenTelemetry concepts.
+See https://opentelemetry.io.
+*/
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/event.go b/vendor/go.opentelemetry.io/otel/sdk/trace/event.go
new file mode 100644
index 0000000..60a7ed1
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/event.go
@@ -0,0 +1,26 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "time"
+
+ "go.opentelemetry.io/otel/attribute"
+)
+
+// Event is a thing that happened during a Span's lifetime.
+type Event struct {
+ // Name is the name of this event
+ Name string
+
+ // Attributes describe the aspects of the event.
+ Attributes []attribute.KeyValue
+
+ // DroppedAttributeCount is the number of attributes that were not
+ // recorded due to configured limits being reached.
+ DroppedAttributeCount int
+
+ // Time at which this event was recorded.
+ Time time.Time
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/evictedqueue.go b/vendor/go.opentelemetry.io/otel/sdk/trace/evictedqueue.go
new file mode 100644
index 0000000..8c308dd
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/evictedqueue.go
@@ -0,0 +1,64 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "slices"
+ "sync"
+
+ "go.opentelemetry.io/otel/internal/global"
+)
+
+// evictedQueue is a FIFO queue with a configurable capacity.
+type evictedQueue[T any] struct {
+ queue []T
+ capacity int
+ droppedCount int
+ logDroppedMsg string
+ logDroppedOnce sync.Once
+}
+
+func newEvictedQueueEvent(capacity int) evictedQueue[Event] {
+ // Do not pre-allocate queue, do this lazily.
+ return evictedQueue[Event]{
+ capacity: capacity,
+ logDroppedMsg: "limit reached: dropping trace trace.Event",
+ }
+}
+
+func newEvictedQueueLink(capacity int) evictedQueue[Link] {
+ // Do not pre-allocate queue, do this lazily.
+ return evictedQueue[Link]{
+ capacity: capacity,
+ logDroppedMsg: "limit reached: dropping trace trace.Link",
+ }
+}
+
+// add adds value to the evictedQueue eq. If eq is at capacity, the oldest
+// queued value will be discarded and the drop count incremented.
+func (eq *evictedQueue[T]) add(value T) {
+ if eq.capacity == 0 {
+ eq.droppedCount++
+ eq.logDropped()
+ return
+ }
+
+ if eq.capacity > 0 && len(eq.queue) == eq.capacity {
+ // Drop first-in while avoiding allocating more capacity to eq.queue.
+ copy(eq.queue[:eq.capacity-1], eq.queue[1:])
+ eq.queue = eq.queue[:eq.capacity-1]
+ eq.droppedCount++
+ eq.logDropped()
+ }
+ eq.queue = append(eq.queue, value)
+}
+
+func (eq *evictedQueue[T]) logDropped() {
+ eq.logDroppedOnce.Do(func() { global.Warn(eq.logDroppedMsg) })
+}
+
+// copy returns a copy of the evictedQueue.
+func (eq *evictedQueue[T]) copy() []T {
+ return slices.Clone(eq.queue)
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/id_generator.go b/vendor/go.opentelemetry.io/otel/sdk/trace/id_generator.go
new file mode 100644
index 0000000..c8d3fb7
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/id_generator.go
@@ -0,0 +1,69 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "encoding/binary"
+ "math/rand/v2"
+
+ "go.opentelemetry.io/otel/trace"
+)
+
+// IDGenerator allows custom generators for TraceID and SpanID.
+type IDGenerator interface {
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // NewIDs returns a new trace and span ID.
+ NewIDs(ctx context.Context) (trace.TraceID, trace.SpanID)
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // NewSpanID returns a ID for a new span in the trace with traceID.
+ NewSpanID(ctx context.Context, traceID trace.TraceID) trace.SpanID
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+}
+
+type randomIDGenerator struct{}
+
+var _ IDGenerator = &randomIDGenerator{}
+
+// NewSpanID returns a non-zero span ID from a randomly-chosen sequence.
+func (gen *randomIDGenerator) NewSpanID(ctx context.Context, traceID trace.TraceID) trace.SpanID {
+ sid := trace.SpanID{}
+ for {
+ binary.NativeEndian.PutUint64(sid[:], rand.Uint64())
+ if sid.IsValid() {
+ break
+ }
+ }
+ return sid
+}
+
+// NewIDs returns a non-zero trace ID and a non-zero span ID from a
+// randomly-chosen sequence.
+func (gen *randomIDGenerator) NewIDs(ctx context.Context) (trace.TraceID, trace.SpanID) {
+ tid := trace.TraceID{}
+ sid := trace.SpanID{}
+ for {
+ binary.NativeEndian.PutUint64(tid[:8], rand.Uint64())
+ binary.NativeEndian.PutUint64(tid[8:], rand.Uint64())
+ if tid.IsValid() {
+ break
+ }
+ }
+ for {
+ binary.NativeEndian.PutUint64(sid[:], rand.Uint64())
+ if sid.IsValid() {
+ break
+ }
+ }
+ return tid, sid
+}
+
+func defaultIDGenerator() IDGenerator {
+ return &randomIDGenerator{}
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/link.go b/vendor/go.opentelemetry.io/otel/sdk/trace/link.go
new file mode 100644
index 0000000..c03bdc9
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/link.go
@@ -0,0 +1,23 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "go.opentelemetry.io/otel/attribute"
+ "go.opentelemetry.io/otel/trace"
+)
+
+// Link is the relationship between two Spans. The relationship can be within
+// the same Trace or across different Traces.
+type Link struct {
+ // SpanContext of the linked Span.
+ SpanContext trace.SpanContext
+
+ // Attributes describe the aspects of the link.
+ Attributes []attribute.KeyValue
+
+ // DroppedAttributeCount is the number of attributes that were not
+ // recorded due to configured limits being reached.
+ DroppedAttributeCount int
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/provider.go b/vendor/go.opentelemetry.io/otel/sdk/trace/provider.go
new file mode 100644
index 0000000..0e2a2e7
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/provider.go
@@ -0,0 +1,504 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "fmt"
+ "sync"
+ "sync/atomic"
+
+ "go.opentelemetry.io/otel"
+ "go.opentelemetry.io/otel/internal/global"
+ "go.opentelemetry.io/otel/sdk/instrumentation"
+ "go.opentelemetry.io/otel/sdk/resource"
+ "go.opentelemetry.io/otel/trace"
+ "go.opentelemetry.io/otel/trace/embedded"
+ "go.opentelemetry.io/otel/trace/noop"
+)
+
+const (
+ defaultTracerName = "go.opentelemetry.io/otel/sdk/tracer"
+)
+
+// tracerProviderConfig.
+type tracerProviderConfig struct {
+ // processors contains collection of SpanProcessors that are processing pipeline
+ // for spans in the trace signal.
+ // SpanProcessors registered with a TracerProvider and are called at the start
+ // and end of a Span's lifecycle, and are called in the order they are
+ // registered.
+ processors []SpanProcessor
+
+ // sampler is the default sampler used when creating new spans.
+ sampler Sampler
+
+ // idGenerator is used to generate all Span and Trace IDs when needed.
+ idGenerator IDGenerator
+
+ // spanLimits defines the attribute, event, and link limits for spans.
+ spanLimits SpanLimits
+
+ // resource contains attributes representing an entity that produces telemetry.
+ resource *resource.Resource
+}
+
+// MarshalLog is the marshaling function used by the logging system to represent this Provider.
+func (cfg tracerProviderConfig) MarshalLog() interface{} {
+ return struct {
+ SpanProcessors []SpanProcessor
+ SamplerType string
+ IDGeneratorType string
+ SpanLimits SpanLimits
+ Resource *resource.Resource
+ }{
+ SpanProcessors: cfg.processors,
+ SamplerType: fmt.Sprintf("%T", cfg.sampler),
+ IDGeneratorType: fmt.Sprintf("%T", cfg.idGenerator),
+ SpanLimits: cfg.spanLimits,
+ Resource: cfg.resource,
+ }
+}
+
+// TracerProvider is an OpenTelemetry TracerProvider. It provides Tracers to
+// instrumentation so it can trace operational flow through a system.
+type TracerProvider struct {
+ embedded.TracerProvider
+
+ mu sync.Mutex
+ namedTracer map[instrumentation.Scope]*tracer
+ spanProcessors atomic.Pointer[spanProcessorStates]
+
+ isShutdown atomic.Bool
+
+ // These fields are not protected by the lock mu. They are assumed to be
+ // immutable after creation of the TracerProvider.
+ sampler Sampler
+ idGenerator IDGenerator
+ spanLimits SpanLimits
+ resource *resource.Resource
+}
+
+var _ trace.TracerProvider = &TracerProvider{}
+
+// NewTracerProvider returns a new and configured TracerProvider.
+//
+// By default the returned TracerProvider is configured with:
+// - a ParentBased(AlwaysSample) Sampler
+// - a random number IDGenerator
+// - the resource.Default() Resource
+// - the default SpanLimits.
+//
+// The passed opts are used to override these default values and configure the
+// returned TracerProvider appropriately.
+func NewTracerProvider(opts ...TracerProviderOption) *TracerProvider {
+ o := tracerProviderConfig{
+ spanLimits: NewSpanLimits(),
+ }
+ o = applyTracerProviderEnvConfigs(o)
+
+ for _, opt := range opts {
+ o = opt.apply(o)
+ }
+
+ o = ensureValidTracerProviderConfig(o)
+
+ tp := &TracerProvider{
+ namedTracer: make(map[instrumentation.Scope]*tracer),
+ sampler: o.sampler,
+ idGenerator: o.idGenerator,
+ spanLimits: o.spanLimits,
+ resource: o.resource,
+ }
+ global.Info("TracerProvider created", "config", o)
+
+ spss := make(spanProcessorStates, 0, len(o.processors))
+ for _, sp := range o.processors {
+ spss = append(spss, newSpanProcessorState(sp))
+ }
+ tp.spanProcessors.Store(&spss)
+
+ return tp
+}
+
+// Tracer returns a Tracer with the given name and options. If a Tracer for
+// the given name and options does not exist it is created, otherwise the
+// existing Tracer is returned.
+//
+// If name is empty, DefaultTracerName is used instead.
+//
+// This method is safe to be called concurrently.
+func (p *TracerProvider) Tracer(name string, opts ...trace.TracerOption) trace.Tracer {
+ // This check happens before the mutex is acquired to avoid deadlocking if Tracer() is called from within Shutdown().
+ if p.isShutdown.Load() {
+ return noop.NewTracerProvider().Tracer(name, opts...)
+ }
+ c := trace.NewTracerConfig(opts...)
+ if name == "" {
+ name = defaultTracerName
+ }
+ is := instrumentation.Scope{
+ Name: name,
+ Version: c.InstrumentationVersion(),
+ SchemaURL: c.SchemaURL(),
+ Attributes: c.InstrumentationAttributes(),
+ }
+
+ t, ok := func() (trace.Tracer, bool) {
+ p.mu.Lock()
+ defer p.mu.Unlock()
+ // Must check the flag after acquiring the mutex to avoid returning a valid tracer if Shutdown() ran
+ // after the first check above but before we acquired the mutex.
+ if p.isShutdown.Load() {
+ return noop.NewTracerProvider().Tracer(name, opts...), true
+ }
+ t, ok := p.namedTracer[is]
+ if !ok {
+ t = &tracer{
+ provider: p,
+ instrumentationScope: is,
+ }
+ p.namedTracer[is] = t
+ }
+ return t, ok
+ }()
+ if !ok {
+ // This code is outside the mutex to not hold the lock while calling third party logging code:
+ // - That code may do slow things like I/O, which would prolong the duration the lock is held,
+ // slowing down all tracing consumers.
+ // - Logging code may be instrumented with tracing and deadlock because it could try
+ // acquiring the same non-reentrant mutex.
+ global.Info(
+ "Tracer created",
+ "name",
+ name,
+ "version",
+ is.Version,
+ "schemaURL",
+ is.SchemaURL,
+ "attributes",
+ is.Attributes,
+ )
+ }
+ return t
+}
+
+// RegisterSpanProcessor adds the given SpanProcessor to the list of SpanProcessors.
+func (p *TracerProvider) RegisterSpanProcessor(sp SpanProcessor) {
+ // This check prevents calls during a shutdown.
+ if p.isShutdown.Load() {
+ return
+ }
+ p.mu.Lock()
+ defer p.mu.Unlock()
+ // This check prevents calls after a shutdown.
+ if p.isShutdown.Load() {
+ return
+ }
+
+ current := p.getSpanProcessors()
+ newSPS := make(spanProcessorStates, 0, len(current)+1)
+ newSPS = append(newSPS, current...)
+ newSPS = append(newSPS, newSpanProcessorState(sp))
+ p.spanProcessors.Store(&newSPS)
+}
+
+// UnregisterSpanProcessor removes the given SpanProcessor from the list of SpanProcessors.
+func (p *TracerProvider) UnregisterSpanProcessor(sp SpanProcessor) {
+ // This check prevents calls during a shutdown.
+ if p.isShutdown.Load() {
+ return
+ }
+ p.mu.Lock()
+ defer p.mu.Unlock()
+ // This check prevents calls after a shutdown.
+ if p.isShutdown.Load() {
+ return
+ }
+ old := p.getSpanProcessors()
+ if len(old) == 0 {
+ return
+ }
+ spss := make(spanProcessorStates, len(old))
+ copy(spss, old)
+
+ // stop the span processor if it is started and remove it from the list
+ var stopOnce *spanProcessorState
+ var idx int
+ for i, sps := range spss {
+ if sps.sp == sp {
+ stopOnce = sps
+ idx = i
+ }
+ }
+ if stopOnce != nil {
+ stopOnce.state.Do(func() {
+ if err := sp.Shutdown(context.Background()); err != nil {
+ otel.Handle(err)
+ }
+ })
+ }
+ if len(spss) > 1 {
+ copy(spss[idx:], spss[idx+1:])
+ }
+ spss[len(spss)-1] = nil
+ spss = spss[:len(spss)-1]
+
+ p.spanProcessors.Store(&spss)
+}
+
+// ForceFlush immediately exports all spans that have not yet been exported for
+// all the registered span processors.
+func (p *TracerProvider) ForceFlush(ctx context.Context) error {
+ spss := p.getSpanProcessors()
+ if len(spss) == 0 {
+ return nil
+ }
+
+ for _, sps := range spss {
+ select {
+ case <-ctx.Done():
+ return ctx.Err()
+ default:
+ }
+
+ if err := sps.sp.ForceFlush(ctx); err != nil {
+ return err
+ }
+ }
+ return nil
+}
+
+// Shutdown shuts down TracerProvider. All registered span processors are shut down
+// in the order they were registered and any held computational resources are released.
+// After Shutdown is called, all methods are no-ops.
+func (p *TracerProvider) Shutdown(ctx context.Context) error {
+ // This check prevents deadlocks in case of recursive shutdown.
+ if p.isShutdown.Load() {
+ return nil
+ }
+ p.mu.Lock()
+ defer p.mu.Unlock()
+ // This check prevents calls after a shutdown has already been done concurrently.
+ if !p.isShutdown.CompareAndSwap(false, true) { // did toggle?
+ return nil
+ }
+
+ var retErr error
+ for _, sps := range p.getSpanProcessors() {
+ select {
+ case <-ctx.Done():
+ return ctx.Err()
+ default:
+ }
+
+ var err error
+ sps.state.Do(func() {
+ err = sps.sp.Shutdown(ctx)
+ })
+ if err != nil {
+ if retErr == nil {
+ retErr = err
+ } else {
+ // Poor man's list of errors
+ retErr = fmt.Errorf("%w; %w", retErr, err)
+ }
+ }
+ }
+ p.spanProcessors.Store(&spanProcessorStates{})
+ return retErr
+}
+
+func (p *TracerProvider) getSpanProcessors() spanProcessorStates {
+ return *(p.spanProcessors.Load())
+}
+
+// TracerProviderOption configures a TracerProvider.
+type TracerProviderOption interface {
+ apply(tracerProviderConfig) tracerProviderConfig
+}
+
+type traceProviderOptionFunc func(tracerProviderConfig) tracerProviderConfig
+
+func (fn traceProviderOptionFunc) apply(cfg tracerProviderConfig) tracerProviderConfig {
+ return fn(cfg)
+}
+
+// WithSyncer registers the exporter with the TracerProvider using a
+// SimpleSpanProcessor.
+//
+// This is not recommended for production use. The synchronous nature of the
+// SimpleSpanProcessor that will wrap the exporter make it good for testing,
+// debugging, or showing examples of other feature, but it will be slow and
+// have a high computation resource usage overhead. The WithBatcher option is
+// recommended for production use instead.
+func WithSyncer(e SpanExporter) TracerProviderOption {
+ return WithSpanProcessor(NewSimpleSpanProcessor(e))
+}
+
+// WithBatcher registers the exporter with the TracerProvider using a
+// BatchSpanProcessor configured with the passed opts.
+func WithBatcher(e SpanExporter, opts ...BatchSpanProcessorOption) TracerProviderOption {
+ return WithSpanProcessor(NewBatchSpanProcessor(e, opts...))
+}
+
+// WithSpanProcessor registers the SpanProcessor with a TracerProvider.
+func WithSpanProcessor(sp SpanProcessor) TracerProviderOption {
+ return traceProviderOptionFunc(func(cfg tracerProviderConfig) tracerProviderConfig {
+ cfg.processors = append(cfg.processors, sp)
+ return cfg
+ })
+}
+
+// WithResource returns a TracerProviderOption that will configure the
+// Resource r as a TracerProvider's Resource. The configured Resource is
+// referenced by all the Tracers the TracerProvider creates. It represents the
+// entity producing telemetry.
+//
+// If this option is not used, the TracerProvider will use the
+// resource.Default() Resource by default.
+func WithResource(r *resource.Resource) TracerProviderOption {
+ return traceProviderOptionFunc(func(cfg tracerProviderConfig) tracerProviderConfig {
+ var err error
+ cfg.resource, err = resource.Merge(resource.Environment(), r)
+ if err != nil {
+ otel.Handle(err)
+ }
+ return cfg
+ })
+}
+
+// WithIDGenerator returns a TracerProviderOption that will configure the
+// IDGenerator g as a TracerProvider's IDGenerator. The configured IDGenerator
+// is used by the Tracers the TracerProvider creates to generate new Span and
+// Trace IDs.
+//
+// If this option is not used, the TracerProvider will use a random number
+// IDGenerator by default.
+func WithIDGenerator(g IDGenerator) TracerProviderOption {
+ return traceProviderOptionFunc(func(cfg tracerProviderConfig) tracerProviderConfig {
+ if g != nil {
+ cfg.idGenerator = g
+ }
+ return cfg
+ })
+}
+
+// WithSampler returns a TracerProviderOption that will configure the Sampler
+// s as a TracerProvider's Sampler. The configured Sampler is used by the
+// Tracers the TracerProvider creates to make their sampling decisions for the
+// Spans they create.
+//
+// This option overrides the Sampler configured through the OTEL_TRACES_SAMPLER
+// and OTEL_TRACES_SAMPLER_ARG environment variables. If this option is not used
+// and the sampler is not configured through environment variables or the environment
+// contains invalid/unsupported configuration, the TracerProvider will use a
+// ParentBased(AlwaysSample) Sampler by default.
+func WithSampler(s Sampler) TracerProviderOption {
+ return traceProviderOptionFunc(func(cfg tracerProviderConfig) tracerProviderConfig {
+ if s != nil {
+ cfg.sampler = s
+ }
+ return cfg
+ })
+}
+
+// WithSpanLimits returns a TracerProviderOption that configures a
+// TracerProvider to use the SpanLimits sl. These SpanLimits bound any Span
+// created by a Tracer from the TracerProvider.
+//
+// If any field of sl is zero or negative it will be replaced with the default
+// value for that field.
+//
+// If this or WithRawSpanLimits are not provided, the TracerProvider will use
+// the limits defined by environment variables, or the defaults if unset.
+// Refer to the NewSpanLimits documentation for information about this
+// relationship.
+//
+// Deprecated: Use WithRawSpanLimits instead which allows setting unlimited
+// and zero limits. This option will be kept until the next major version
+// incremented release.
+func WithSpanLimits(sl SpanLimits) TracerProviderOption {
+ if sl.AttributeValueLengthLimit <= 0 {
+ sl.AttributeValueLengthLimit = DefaultAttributeValueLengthLimit
+ }
+ if sl.AttributeCountLimit <= 0 {
+ sl.AttributeCountLimit = DefaultAttributeCountLimit
+ }
+ if sl.EventCountLimit <= 0 {
+ sl.EventCountLimit = DefaultEventCountLimit
+ }
+ if sl.AttributePerEventCountLimit <= 0 {
+ sl.AttributePerEventCountLimit = DefaultAttributePerEventCountLimit
+ }
+ if sl.LinkCountLimit <= 0 {
+ sl.LinkCountLimit = DefaultLinkCountLimit
+ }
+ if sl.AttributePerLinkCountLimit <= 0 {
+ sl.AttributePerLinkCountLimit = DefaultAttributePerLinkCountLimit
+ }
+ return traceProviderOptionFunc(func(cfg tracerProviderConfig) tracerProviderConfig {
+ cfg.spanLimits = sl
+ return cfg
+ })
+}
+
+// WithRawSpanLimits returns a TracerProviderOption that configures a
+// TracerProvider to use these limits. These limits bound any Span created by
+// a Tracer from the TracerProvider.
+//
+// The limits will be used as-is. Zero or negative values will not be changed
+// to the default value like WithSpanLimits does. Setting a limit to zero will
+// effectively disable the related resource it limits and setting to a
+// negative value will mean that resource is unlimited. Consequentially, this
+// means that the zero-value SpanLimits will disable all span resources.
+// Because of this, limits should be constructed using NewSpanLimits and
+// updated accordingly.
+//
+// If this or WithSpanLimits are not provided, the TracerProvider will use the
+// limits defined by environment variables, or the defaults if unset. Refer to
+// the NewSpanLimits documentation for information about this relationship.
+func WithRawSpanLimits(limits SpanLimits) TracerProviderOption {
+ return traceProviderOptionFunc(func(cfg tracerProviderConfig) tracerProviderConfig {
+ cfg.spanLimits = limits
+ return cfg
+ })
+}
+
+func applyTracerProviderEnvConfigs(cfg tracerProviderConfig) tracerProviderConfig {
+ for _, opt := range tracerProviderOptionsFromEnv() {
+ cfg = opt.apply(cfg)
+ }
+
+ return cfg
+}
+
+func tracerProviderOptionsFromEnv() []TracerProviderOption {
+ var opts []TracerProviderOption
+
+ sampler, err := samplerFromEnv()
+ if err != nil {
+ otel.Handle(err)
+ }
+
+ if sampler != nil {
+ opts = append(opts, WithSampler(sampler))
+ }
+
+ return opts
+}
+
+// ensureValidTracerProviderConfig ensures that given TracerProviderConfig is valid.
+func ensureValidTracerProviderConfig(cfg tracerProviderConfig) tracerProviderConfig {
+ if cfg.sampler == nil {
+ cfg.sampler = ParentBased(AlwaysSample())
+ }
+ if cfg.idGenerator == nil {
+ cfg.idGenerator = defaultIDGenerator()
+ }
+ if cfg.resource == nil {
+ cfg.resource = resource.Default()
+ }
+ return cfg
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/sampler_env.go b/vendor/go.opentelemetry.io/otel/sdk/trace/sampler_env.go
new file mode 100644
index 0000000..9b672a1
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/sampler_env.go
@@ -0,0 +1,96 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "errors"
+ "os"
+ "strconv"
+ "strings"
+)
+
+const (
+ tracesSamplerKey = "OTEL_TRACES_SAMPLER"
+ tracesSamplerArgKey = "OTEL_TRACES_SAMPLER_ARG"
+
+ samplerAlwaysOn = "always_on"
+ samplerAlwaysOff = "always_off"
+ samplerTraceIDRatio = "traceidratio"
+ samplerParentBasedAlwaysOn = "parentbased_always_on"
+ samplerParsedBasedAlwaysOff = "parentbased_always_off"
+ samplerParentBasedTraceIDRatio = "parentbased_traceidratio"
+)
+
+type errUnsupportedSampler string
+
+func (e errUnsupportedSampler) Error() string {
+ return "unsupported sampler: " + string(e)
+}
+
+var (
+ errNegativeTraceIDRatio = errors.New("invalid trace ID ratio: less than 0.0")
+ errGreaterThanOneTraceIDRatio = errors.New("invalid trace ID ratio: greater than 1.0")
+)
+
+type samplerArgParseError struct {
+ parseErr error
+}
+
+func (e samplerArgParseError) Error() string {
+ return "parsing sampler argument: " + e.parseErr.Error()
+}
+
+func (e samplerArgParseError) Unwrap() error {
+ return e.parseErr
+}
+
+func samplerFromEnv() (Sampler, error) {
+ sampler, ok := os.LookupEnv(tracesSamplerKey)
+ if !ok {
+ return nil, nil
+ }
+
+ sampler = strings.ToLower(strings.TrimSpace(sampler))
+ samplerArg, hasSamplerArg := os.LookupEnv(tracesSamplerArgKey)
+ samplerArg = strings.TrimSpace(samplerArg)
+
+ switch sampler {
+ case samplerAlwaysOn:
+ return AlwaysSample(), nil
+ case samplerAlwaysOff:
+ return NeverSample(), nil
+ case samplerTraceIDRatio:
+ if !hasSamplerArg {
+ return TraceIDRatioBased(1.0), nil
+ }
+ return parseTraceIDRatio(samplerArg)
+ case samplerParentBasedAlwaysOn:
+ return ParentBased(AlwaysSample()), nil
+ case samplerParsedBasedAlwaysOff:
+ return ParentBased(NeverSample()), nil
+ case samplerParentBasedTraceIDRatio:
+ if !hasSamplerArg {
+ return ParentBased(TraceIDRatioBased(1.0)), nil
+ }
+ ratio, err := parseTraceIDRatio(samplerArg)
+ return ParentBased(ratio), err
+ default:
+ return nil, errUnsupportedSampler(sampler)
+ }
+}
+
+func parseTraceIDRatio(arg string) (Sampler, error) {
+ v, err := strconv.ParseFloat(arg, 64)
+ if err != nil {
+ return TraceIDRatioBased(1.0), samplerArgParseError{err}
+ }
+ if v < 0.0 {
+ return TraceIDRatioBased(1.0), errNegativeTraceIDRatio
+ }
+ if v > 1.0 {
+ return TraceIDRatioBased(1.0), errGreaterThanOneTraceIDRatio
+ }
+
+ return TraceIDRatioBased(v), nil
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/sampling.go b/vendor/go.opentelemetry.io/otel/sdk/trace/sampling.go
new file mode 100644
index 0000000..aa7b262
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/sampling.go
@@ -0,0 +1,282 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "encoding/binary"
+ "fmt"
+
+ "go.opentelemetry.io/otel/attribute"
+ "go.opentelemetry.io/otel/trace"
+)
+
+// Sampler decides whether a trace should be sampled and exported.
+type Sampler interface {
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // ShouldSample returns a SamplingResult based on a decision made from the
+ // passed parameters.
+ ShouldSample(parameters SamplingParameters) SamplingResult
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // Description returns information describing the Sampler.
+ Description() string
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+}
+
+// SamplingParameters contains the values passed to a Sampler.
+type SamplingParameters struct {
+ ParentContext context.Context
+ TraceID trace.TraceID
+ Name string
+ Kind trace.SpanKind
+ Attributes []attribute.KeyValue
+ Links []trace.Link
+}
+
+// SamplingDecision indicates whether a span is dropped, recorded and/or sampled.
+type SamplingDecision uint8
+
+// Valid sampling decisions.
+const (
+ // Drop will not record the span and all attributes/events will be dropped.
+ Drop SamplingDecision = iota
+
+ // RecordOnly indicates the span's IsRecording method returns true, but trace.FlagsSampled flag
+ // must not be set.
+ RecordOnly
+
+ // RecordAndSample indicates the span's IsRecording method returns true and trace.FlagsSampled flag
+ // must be set.
+ RecordAndSample
+)
+
+// SamplingResult conveys a SamplingDecision, set of Attributes and a Tracestate.
+type SamplingResult struct {
+ Decision SamplingDecision
+ Attributes []attribute.KeyValue
+ Tracestate trace.TraceState
+}
+
+type traceIDRatioSampler struct {
+ traceIDUpperBound uint64
+ description string
+}
+
+func (ts traceIDRatioSampler) ShouldSample(p SamplingParameters) SamplingResult {
+ psc := trace.SpanContextFromContext(p.ParentContext)
+ x := binary.BigEndian.Uint64(p.TraceID[8:16]) >> 1
+ if x < ts.traceIDUpperBound {
+ return SamplingResult{
+ Decision: RecordAndSample,
+ Tracestate: psc.TraceState(),
+ }
+ }
+ return SamplingResult{
+ Decision: Drop,
+ Tracestate: psc.TraceState(),
+ }
+}
+
+func (ts traceIDRatioSampler) Description() string {
+ return ts.description
+}
+
+// TraceIDRatioBased samples a given fraction of traces. Fractions >= 1 will
+// always sample. Fractions < 0 are treated as zero. To respect the
+// parent trace's `SampledFlag`, the `TraceIDRatioBased` sampler should be used
+// as a delegate of a `Parent` sampler.
+//
+//nolint:revive // revive complains about stutter of `trace.TraceIDRatioBased`
+func TraceIDRatioBased(fraction float64) Sampler {
+ if fraction >= 1 {
+ return AlwaysSample()
+ }
+
+ if fraction <= 0 {
+ fraction = 0
+ }
+
+ return &traceIDRatioSampler{
+ traceIDUpperBound: uint64(fraction * (1 << 63)),
+ description: fmt.Sprintf("TraceIDRatioBased{%g}", fraction),
+ }
+}
+
+type alwaysOnSampler struct{}
+
+func (as alwaysOnSampler) ShouldSample(p SamplingParameters) SamplingResult {
+ return SamplingResult{
+ Decision: RecordAndSample,
+ Tracestate: trace.SpanContextFromContext(p.ParentContext).TraceState(),
+ }
+}
+
+func (as alwaysOnSampler) Description() string {
+ return "AlwaysOnSampler"
+}
+
+// AlwaysSample returns a Sampler that samples every trace.
+// Be careful about using this sampler in a production application with
+// significant traffic: a new trace will be started and exported for every
+// request.
+func AlwaysSample() Sampler {
+ return alwaysOnSampler{}
+}
+
+type alwaysOffSampler struct{}
+
+func (as alwaysOffSampler) ShouldSample(p SamplingParameters) SamplingResult {
+ return SamplingResult{
+ Decision: Drop,
+ Tracestate: trace.SpanContextFromContext(p.ParentContext).TraceState(),
+ }
+}
+
+func (as alwaysOffSampler) Description() string {
+ return "AlwaysOffSampler"
+}
+
+// NeverSample returns a Sampler that samples no traces.
+func NeverSample() Sampler {
+ return alwaysOffSampler{}
+}
+
+// ParentBased returns a sampler decorator which behaves differently,
+// based on the parent of the span. If the span has no parent,
+// the decorated sampler is used to make sampling decision. If the span has
+// a parent, depending on whether the parent is remote and whether it
+// is sampled, one of the following samplers will apply:
+// - remoteParentSampled(Sampler) (default: AlwaysOn)
+// - remoteParentNotSampled(Sampler) (default: AlwaysOff)
+// - localParentSampled(Sampler) (default: AlwaysOn)
+// - localParentNotSampled(Sampler) (default: AlwaysOff)
+func ParentBased(root Sampler, samplers ...ParentBasedSamplerOption) Sampler {
+ return parentBased{
+ root: root,
+ config: configureSamplersForParentBased(samplers),
+ }
+}
+
+type parentBased struct {
+ root Sampler
+ config samplerConfig
+}
+
+func configureSamplersForParentBased(samplers []ParentBasedSamplerOption) samplerConfig {
+ c := samplerConfig{
+ remoteParentSampled: AlwaysSample(),
+ remoteParentNotSampled: NeverSample(),
+ localParentSampled: AlwaysSample(),
+ localParentNotSampled: NeverSample(),
+ }
+
+ for _, so := range samplers {
+ c = so.apply(c)
+ }
+
+ return c
+}
+
+// samplerConfig is a group of options for parentBased sampler.
+type samplerConfig struct {
+ remoteParentSampled, remoteParentNotSampled Sampler
+ localParentSampled, localParentNotSampled Sampler
+}
+
+// ParentBasedSamplerOption configures the sampler for a particular sampling case.
+type ParentBasedSamplerOption interface {
+ apply(samplerConfig) samplerConfig
+}
+
+// WithRemoteParentSampled sets the sampler for the case of sampled remote parent.
+func WithRemoteParentSampled(s Sampler) ParentBasedSamplerOption {
+ return remoteParentSampledOption{s}
+}
+
+type remoteParentSampledOption struct {
+ s Sampler
+}
+
+func (o remoteParentSampledOption) apply(config samplerConfig) samplerConfig {
+ config.remoteParentSampled = o.s
+ return config
+}
+
+// WithRemoteParentNotSampled sets the sampler for the case of remote parent
+// which is not sampled.
+func WithRemoteParentNotSampled(s Sampler) ParentBasedSamplerOption {
+ return remoteParentNotSampledOption{s}
+}
+
+type remoteParentNotSampledOption struct {
+ s Sampler
+}
+
+func (o remoteParentNotSampledOption) apply(config samplerConfig) samplerConfig {
+ config.remoteParentNotSampled = o.s
+ return config
+}
+
+// WithLocalParentSampled sets the sampler for the case of sampled local parent.
+func WithLocalParentSampled(s Sampler) ParentBasedSamplerOption {
+ return localParentSampledOption{s}
+}
+
+type localParentSampledOption struct {
+ s Sampler
+}
+
+func (o localParentSampledOption) apply(config samplerConfig) samplerConfig {
+ config.localParentSampled = o.s
+ return config
+}
+
+// WithLocalParentNotSampled sets the sampler for the case of local parent
+// which is not sampled.
+func WithLocalParentNotSampled(s Sampler) ParentBasedSamplerOption {
+ return localParentNotSampledOption{s}
+}
+
+type localParentNotSampledOption struct {
+ s Sampler
+}
+
+func (o localParentNotSampledOption) apply(config samplerConfig) samplerConfig {
+ config.localParentNotSampled = o.s
+ return config
+}
+
+func (pb parentBased) ShouldSample(p SamplingParameters) SamplingResult {
+ psc := trace.SpanContextFromContext(p.ParentContext)
+ if psc.IsValid() {
+ if psc.IsRemote() {
+ if psc.IsSampled() {
+ return pb.config.remoteParentSampled.ShouldSample(p)
+ }
+ return pb.config.remoteParentNotSampled.ShouldSample(p)
+ }
+
+ if psc.IsSampled() {
+ return pb.config.localParentSampled.ShouldSample(p)
+ }
+ return pb.config.localParentNotSampled.ShouldSample(p)
+ }
+ return pb.root.ShouldSample(p)
+}
+
+func (pb parentBased) Description() string {
+ return fmt.Sprintf("ParentBased{root:%s,remoteParentSampled:%s,"+
+ "remoteParentNotSampled:%s,localParentSampled:%s,localParentNotSampled:%s}",
+ pb.root.Description(),
+ pb.config.remoteParentSampled.Description(),
+ pb.config.remoteParentNotSampled.Description(),
+ pb.config.localParentSampled.Description(),
+ pb.config.localParentNotSampled.Description(),
+ )
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/simple_span_processor.go b/vendor/go.opentelemetry.io/otel/sdk/trace/simple_span_processor.go
new file mode 100644
index 0000000..664e13e
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/simple_span_processor.go
@@ -0,0 +1,121 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "sync"
+
+ "go.opentelemetry.io/otel"
+ "go.opentelemetry.io/otel/internal/global"
+)
+
+// simpleSpanProcessor is a SpanProcessor that synchronously sends all
+// completed Spans to a trace.Exporter immediately.
+type simpleSpanProcessor struct {
+ exporterMu sync.Mutex
+ exporter SpanExporter
+ stopOnce sync.Once
+}
+
+var _ SpanProcessor = (*simpleSpanProcessor)(nil)
+
+// NewSimpleSpanProcessor returns a new SpanProcessor that will synchronously
+// send completed spans to the exporter immediately.
+//
+// This SpanProcessor is not recommended for production use. The synchronous
+// nature of this SpanProcessor makes it good for testing, debugging, or showing
+// examples of other features, but it will be slow and have a high computation
+// resource usage overhead. The BatchSpanProcessor is recommended for production
+// use instead.
+func NewSimpleSpanProcessor(exporter SpanExporter) SpanProcessor {
+ ssp := &simpleSpanProcessor{
+ exporter: exporter,
+ }
+ global.Warn("SimpleSpanProcessor is not recommended for production use, consider using BatchSpanProcessor instead.")
+
+ return ssp
+}
+
+// OnStart does nothing.
+func (ssp *simpleSpanProcessor) OnStart(context.Context, ReadWriteSpan) {}
+
+// OnEnd immediately exports a ReadOnlySpan.
+func (ssp *simpleSpanProcessor) OnEnd(s ReadOnlySpan) {
+ ssp.exporterMu.Lock()
+ defer ssp.exporterMu.Unlock()
+
+ if ssp.exporter != nil && s.SpanContext().TraceFlags().IsSampled() {
+ if err := ssp.exporter.ExportSpans(context.Background(), []ReadOnlySpan{s}); err != nil {
+ otel.Handle(err)
+ }
+ }
+}
+
+// Shutdown shuts down the exporter this SimpleSpanProcessor exports to.
+func (ssp *simpleSpanProcessor) Shutdown(ctx context.Context) error {
+ var err error
+ ssp.stopOnce.Do(func() {
+ stopFunc := func(exp SpanExporter) (<-chan error, func()) {
+ done := make(chan error, 1)
+ return done, func() { done <- exp.Shutdown(ctx) }
+ }
+
+ // The exporter field of the simpleSpanProcessor needs to be zeroed to
+ // signal it is shut down, meaning all subsequent calls to OnEnd will
+ // be gracefully ignored. This needs to be done synchronously to avoid
+ // any race condition.
+ //
+ // A closure is used to keep reference to the exporter and then the
+ // field is zeroed. This ensures the simpleSpanProcessor is shut down
+ // before the exporter. This order is important as it avoids a potential
+ // deadlock. If the exporter shut down operation generates a span, that
+ // span would need to be exported. Meaning, OnEnd would be called and
+ // try acquiring the lock that is held here.
+ ssp.exporterMu.Lock()
+ done, shutdown := stopFunc(ssp.exporter)
+ ssp.exporter = nil
+ ssp.exporterMu.Unlock()
+
+ go shutdown()
+
+ // Wait for the exporter to shut down or the deadline to expire.
+ select {
+ case err = <-done:
+ case <-ctx.Done():
+ // It is possible for the exporter to have immediately shut down and
+ // the context to be done simultaneously. In that case this outer
+ // select statement will randomly choose a case. This will result in
+ // a different returned error for similar scenarios. Instead, double
+ // check if the exporter shut down at the same time and return that
+ // error if so. This will ensure consistency as well as ensure
+ // the caller knows the exporter shut down successfully (they can
+ // already determine if the deadline is expired given they passed
+ // the context).
+ select {
+ case err = <-done:
+ default:
+ err = ctx.Err()
+ }
+ }
+ })
+ return err
+}
+
+// ForceFlush does nothing as there is no data to flush.
+func (ssp *simpleSpanProcessor) ForceFlush(context.Context) error {
+ return nil
+}
+
+// MarshalLog is the marshaling function used by the logging system to represent
+// this Span Processor.
+func (ssp *simpleSpanProcessor) MarshalLog() interface{} {
+ return struct {
+ Type string
+ Exporter SpanExporter
+ }{
+ Type: "SimpleSpanProcessor",
+ Exporter: ssp.exporter,
+ }
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/snapshot.go b/vendor/go.opentelemetry.io/otel/sdk/trace/snapshot.go
new file mode 100644
index 0000000..d511d0f
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/snapshot.go
@@ -0,0 +1,133 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "time"
+
+ "go.opentelemetry.io/otel/attribute"
+ "go.opentelemetry.io/otel/sdk/instrumentation"
+ "go.opentelemetry.io/otel/sdk/resource"
+ "go.opentelemetry.io/otel/trace"
+)
+
+// snapshot is an record of a spans state at a particular checkpointed time.
+// It is used as a read-only representation of that state.
+type snapshot struct {
+ name string
+ spanContext trace.SpanContext
+ parent trace.SpanContext
+ spanKind trace.SpanKind
+ startTime time.Time
+ endTime time.Time
+ attributes []attribute.KeyValue
+ events []Event
+ links []Link
+ status Status
+ childSpanCount int
+ droppedAttributeCount int
+ droppedEventCount int
+ droppedLinkCount int
+ resource *resource.Resource
+ instrumentationScope instrumentation.Scope
+}
+
+var _ ReadOnlySpan = snapshot{}
+
+func (s snapshot) private() {}
+
+// Name returns the name of the span.
+func (s snapshot) Name() string {
+ return s.name
+}
+
+// SpanContext returns the unique SpanContext that identifies the span.
+func (s snapshot) SpanContext() trace.SpanContext {
+ return s.spanContext
+}
+
+// Parent returns the unique SpanContext that identifies the parent of the
+// span if one exists. If the span has no parent the returned SpanContext
+// will be invalid.
+func (s snapshot) Parent() trace.SpanContext {
+ return s.parent
+}
+
+// SpanKind returns the role the span plays in a Trace.
+func (s snapshot) SpanKind() trace.SpanKind {
+ return s.spanKind
+}
+
+// StartTime returns the time the span started recording.
+func (s snapshot) StartTime() time.Time {
+ return s.startTime
+}
+
+// EndTime returns the time the span stopped recording. It will be zero if
+// the span has not ended.
+func (s snapshot) EndTime() time.Time {
+ return s.endTime
+}
+
+// Attributes returns the defining attributes of the span.
+func (s snapshot) Attributes() []attribute.KeyValue {
+ return s.attributes
+}
+
+// Links returns all the links the span has to other spans.
+func (s snapshot) Links() []Link {
+ return s.links
+}
+
+// Events returns all the events that occurred within in the spans
+// lifetime.
+func (s snapshot) Events() []Event {
+ return s.events
+}
+
+// Status returns the spans status.
+func (s snapshot) Status() Status {
+ return s.status
+}
+
+// InstrumentationScope returns information about the instrumentation
+// scope that created the span.
+func (s snapshot) InstrumentationScope() instrumentation.Scope {
+ return s.instrumentationScope
+}
+
+// InstrumentationLibrary returns information about the instrumentation
+// library that created the span.
+func (s snapshot) InstrumentationLibrary() instrumentation.Library { //nolint:staticcheck // This method needs to be define for backwards compatibility
+ return s.instrumentationScope
+}
+
+// Resource returns information about the entity that produced the span.
+func (s snapshot) Resource() *resource.Resource {
+ return s.resource
+}
+
+// DroppedAttributes returns the number of attributes dropped by the span
+// due to limits being reached.
+func (s snapshot) DroppedAttributes() int {
+ return s.droppedAttributeCount
+}
+
+// DroppedLinks returns the number of links dropped by the span due to limits
+// being reached.
+func (s snapshot) DroppedLinks() int {
+ return s.droppedLinkCount
+}
+
+// DroppedEvents returns the number of events dropped by the span due to
+// limits being reached.
+func (s snapshot) DroppedEvents() int {
+ return s.droppedEventCount
+}
+
+// ChildSpanCount returns the count of spans that consider the span a
+// direct parent.
+func (s snapshot) ChildSpanCount() int {
+ return s.childSpanCount
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/span.go b/vendor/go.opentelemetry.io/otel/sdk/trace/span.go
new file mode 100644
index 0000000..1785a4b
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/span.go
@@ -0,0 +1,937 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "fmt"
+ "reflect"
+ "runtime"
+ rt "runtime/trace"
+ "slices"
+ "strings"
+ "sync"
+ "time"
+ "unicode/utf8"
+
+ "go.opentelemetry.io/otel/attribute"
+ "go.opentelemetry.io/otel/codes"
+ "go.opentelemetry.io/otel/internal/global"
+ "go.opentelemetry.io/otel/sdk/instrumentation"
+ "go.opentelemetry.io/otel/sdk/resource"
+ semconv "go.opentelemetry.io/otel/semconv/v1.34.0"
+ "go.opentelemetry.io/otel/trace"
+ "go.opentelemetry.io/otel/trace/embedded"
+)
+
+// ReadOnlySpan allows reading information from the data structure underlying a
+// trace.Span. It is used in places where reading information from a span is
+// necessary but changing the span isn't necessary or allowed.
+//
+// Warning: methods may be added to this interface in minor releases.
+type ReadOnlySpan interface {
+ // Name returns the name of the span.
+ Name() string
+ // SpanContext returns the unique SpanContext that identifies the span.
+ SpanContext() trace.SpanContext
+ // Parent returns the unique SpanContext that identifies the parent of the
+ // span if one exists. If the span has no parent the returned SpanContext
+ // will be invalid.
+ Parent() trace.SpanContext
+ // SpanKind returns the role the span plays in a Trace.
+ SpanKind() trace.SpanKind
+ // StartTime returns the time the span started recording.
+ StartTime() time.Time
+ // EndTime returns the time the span stopped recording. It will be zero if
+ // the span has not ended.
+ EndTime() time.Time
+ // Attributes returns the defining attributes of the span.
+ // The order of the returned attributes is not guaranteed to be stable across invocations.
+ Attributes() []attribute.KeyValue
+ // Links returns all the links the span has to other spans.
+ Links() []Link
+ // Events returns all the events that occurred within in the spans
+ // lifetime.
+ Events() []Event
+ // Status returns the spans status.
+ Status() Status
+ // InstrumentationScope returns information about the instrumentation
+ // scope that created the span.
+ InstrumentationScope() instrumentation.Scope
+ // InstrumentationLibrary returns information about the instrumentation
+ // library that created the span.
+ // Deprecated: please use InstrumentationScope instead.
+ InstrumentationLibrary() instrumentation.Library //nolint:staticcheck // This method needs to be define for backwards compatibility
+ // Resource returns information about the entity that produced the span.
+ Resource() *resource.Resource
+ // DroppedAttributes returns the number of attributes dropped by the span
+ // due to limits being reached.
+ DroppedAttributes() int
+ // DroppedLinks returns the number of links dropped by the span due to
+ // limits being reached.
+ DroppedLinks() int
+ // DroppedEvents returns the number of events dropped by the span due to
+ // limits being reached.
+ DroppedEvents() int
+ // ChildSpanCount returns the count of spans that consider the span a
+ // direct parent.
+ ChildSpanCount() int
+
+ // A private method to prevent users implementing the
+ // interface and so future additions to it will not
+ // violate compatibility.
+ private()
+}
+
+// ReadWriteSpan exposes the same methods as trace.Span and in addition allows
+// reading information from the underlying data structure.
+// This interface exposes the union of the methods of trace.Span (which is a
+// "write-only" span) and ReadOnlySpan. New methods for writing or reading span
+// information should be added under trace.Span or ReadOnlySpan, respectively.
+//
+// Warning: methods may be added to this interface in minor releases.
+type ReadWriteSpan interface {
+ trace.Span
+ ReadOnlySpan
+}
+
+// recordingSpan is an implementation of the OpenTelemetry Span API
+// representing the individual component of a trace that is sampled.
+type recordingSpan struct {
+ embedded.Span
+
+ // mu protects the contents of this span.
+ mu sync.Mutex
+
+ // parent holds the parent span of this span as a trace.SpanContext.
+ parent trace.SpanContext
+
+ // spanKind represents the kind of this span as a trace.SpanKind.
+ spanKind trace.SpanKind
+
+ // name is the name of this span.
+ name string
+
+ // startTime is the time at which this span was started.
+ startTime time.Time
+
+ // endTime is the time at which this span was ended. It contains the zero
+ // value of time.Time until the span is ended.
+ endTime time.Time
+
+ // status is the status of this span.
+ status Status
+
+ // childSpanCount holds the number of child spans created for this span.
+ childSpanCount int
+
+ // spanContext holds the SpanContext of this span.
+ spanContext trace.SpanContext
+
+ // attributes is a collection of user provided key/values. The collection
+ // is constrained by a configurable maximum held by the parent
+ // TracerProvider. When additional attributes are added after this maximum
+ // is reached these attributes the user is attempting to add are dropped.
+ // This dropped number of attributes is tracked and reported in the
+ // ReadOnlySpan exported when the span ends.
+ attributes []attribute.KeyValue
+ droppedAttributes int
+ logDropAttrsOnce sync.Once
+
+ // events are stored in FIFO queue capped by configured limit.
+ events evictedQueue[Event]
+
+ // links are stored in FIFO queue capped by configured limit.
+ links evictedQueue[Link]
+
+ // executionTracerTaskEnd ends the execution tracer span.
+ executionTracerTaskEnd func()
+
+ // tracer is the SDK tracer that created this span.
+ tracer *tracer
+}
+
+var (
+ _ ReadWriteSpan = (*recordingSpan)(nil)
+ _ runtimeTracer = (*recordingSpan)(nil)
+)
+
+// SpanContext returns the SpanContext of this span.
+func (s *recordingSpan) SpanContext() trace.SpanContext {
+ if s == nil {
+ return trace.SpanContext{}
+ }
+ return s.spanContext
+}
+
+// IsRecording returns if this span is being recorded. If this span has ended
+// this will return false.
+func (s *recordingSpan) IsRecording() bool {
+ if s == nil {
+ return false
+ }
+ s.mu.Lock()
+ defer s.mu.Unlock()
+
+ return s.isRecording()
+}
+
+// isRecording returns if this span is being recorded. If this span has ended
+// this will return false.
+//
+// This method assumes s.mu.Lock is held by the caller.
+func (s *recordingSpan) isRecording() bool {
+ if s == nil {
+ return false
+ }
+ return s.endTime.IsZero()
+}
+
+// SetStatus sets the status of the Span in the form of a code and a
+// description, overriding previous values set. The description is only
+// included in the set status when the code is for an error. If this span is
+// not being recorded than this method does nothing.
+func (s *recordingSpan) SetStatus(code codes.Code, description string) {
+ if s == nil {
+ return
+ }
+
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if !s.isRecording() {
+ return
+ }
+ if s.status.Code > code {
+ return
+ }
+
+ status := Status{Code: code}
+ if code == codes.Error {
+ status.Description = description
+ }
+
+ s.status = status
+}
+
+// SetAttributes sets attributes of this span.
+//
+// If a key from attributes already exists the value associated with that key
+// will be overwritten with the value contained in attributes.
+//
+// If this span is not being recorded than this method does nothing.
+//
+// If adding attributes to the span would exceed the maximum amount of
+// attributes the span is configured to have, the last added attributes will
+// be dropped.
+func (s *recordingSpan) SetAttributes(attributes ...attribute.KeyValue) {
+ if s == nil || len(attributes) == 0 {
+ return
+ }
+
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if !s.isRecording() {
+ return
+ }
+
+ limit := s.tracer.provider.spanLimits.AttributeCountLimit
+ if limit == 0 {
+ // No attributes allowed.
+ s.addDroppedAttr(len(attributes))
+ return
+ }
+
+ // If adding these attributes could exceed the capacity of s perform a
+ // de-duplication and truncation while adding to avoid over allocation.
+ if limit > 0 && len(s.attributes)+len(attributes) > limit {
+ s.addOverCapAttrs(limit, attributes)
+ return
+ }
+
+ // Otherwise, add without deduplication. When attributes are read they
+ // will be deduplicated, optimizing the operation.
+ s.attributes = slices.Grow(s.attributes, len(attributes))
+ for _, a := range attributes {
+ if !a.Valid() {
+ // Drop all invalid attributes.
+ s.addDroppedAttr(1)
+ continue
+ }
+ a = truncateAttr(s.tracer.provider.spanLimits.AttributeValueLengthLimit, a)
+ s.attributes = append(s.attributes, a)
+ }
+}
+
+// Declared as a var so tests can override.
+var logDropAttrs = func() {
+ global.Warn("limit reached: dropping trace Span attributes")
+}
+
+// addDroppedAttr adds incr to the count of dropped attributes.
+//
+// The first, and only the first, time this method is called a warning will be
+// logged.
+//
+// This method assumes s.mu.Lock is held by the caller.
+func (s *recordingSpan) addDroppedAttr(incr int) {
+ s.droppedAttributes += incr
+ s.logDropAttrsOnce.Do(logDropAttrs)
+}
+
+// addOverCapAttrs adds the attributes attrs to the span s while
+// de-duplicating the attributes of s and attrs and dropping attributes that
+// exceed the limit.
+//
+// This method assumes s.mu.Lock is held by the caller.
+//
+// This method should only be called when there is a possibility that adding
+// attrs to s will exceed the limit. Otherwise, attrs should be added to s
+// without checking for duplicates and all retrieval methods of the attributes
+// for s will de-duplicate as needed.
+//
+// This method assumes limit is a value > 0. The argument should be validated
+// by the caller.
+func (s *recordingSpan) addOverCapAttrs(limit int, attrs []attribute.KeyValue) {
+ // In order to not allocate more capacity to s.attributes than needed,
+ // prune and truncate this addition of attributes while adding.
+
+ // Do not set a capacity when creating this map. Benchmark testing has
+ // showed this to only add unused memory allocations in general use.
+ exists := make(map[attribute.Key]int, len(s.attributes))
+ s.dedupeAttrsFromRecord(exists)
+
+ // Now that s.attributes is deduplicated, adding unique attributes up to
+ // the capacity of s will not over allocate s.attributes.
+
+ // max size = limit
+ maxCap := min(len(attrs)+len(s.attributes), limit)
+ if cap(s.attributes) < maxCap {
+ s.attributes = slices.Grow(s.attributes, maxCap-cap(s.attributes))
+ }
+ for _, a := range attrs {
+ if !a.Valid() {
+ // Drop all invalid attributes.
+ s.addDroppedAttr(1)
+ continue
+ }
+
+ if idx, ok := exists[a.Key]; ok {
+ // Perform all updates before dropping, even when at capacity.
+ a = truncateAttr(s.tracer.provider.spanLimits.AttributeValueLengthLimit, a)
+ s.attributes[idx] = a
+ continue
+ }
+
+ if len(s.attributes) >= limit {
+ // Do not just drop all of the remaining attributes, make sure
+ // updates are checked and performed.
+ s.addDroppedAttr(1)
+ } else {
+ a = truncateAttr(s.tracer.provider.spanLimits.AttributeValueLengthLimit, a)
+ s.attributes = append(s.attributes, a)
+ exists[a.Key] = len(s.attributes) - 1
+ }
+ }
+}
+
+// truncateAttr returns a truncated version of attr. Only string and string
+// slice attribute values are truncated. String values are truncated to at
+// most a length of limit. Each string slice value is truncated in this fashion
+// (the slice length itself is unaffected).
+//
+// No truncation is performed for a negative limit.
+func truncateAttr(limit int, attr attribute.KeyValue) attribute.KeyValue {
+ if limit < 0 {
+ return attr
+ }
+ switch attr.Value.Type() {
+ case attribute.STRING:
+ v := attr.Value.AsString()
+ return attr.Key.String(truncate(limit, v))
+ case attribute.STRINGSLICE:
+ v := attr.Value.AsStringSlice()
+ for i := range v {
+ v[i] = truncate(limit, v[i])
+ }
+ return attr.Key.StringSlice(v)
+ }
+ return attr
+}
+
+// truncate returns a truncated version of s such that it contains less than
+// the limit number of characters. Truncation is applied by returning the limit
+// number of valid characters contained in s.
+//
+// If limit is negative, it returns the original string.
+//
+// UTF-8 is supported. When truncating, all invalid characters are dropped
+// before applying truncation.
+//
+// If s already contains less than the limit number of bytes, it is returned
+// unchanged. No invalid characters are removed.
+func truncate(limit int, s string) string {
+ // This prioritize performance in the following order based on the most
+ // common expected use-cases.
+ //
+ // - Short values less than the default limit (128).
+ // - Strings with valid encodings that exceed the limit.
+ // - No limit.
+ // - Strings with invalid encodings that exceed the limit.
+ if limit < 0 || len(s) <= limit {
+ return s
+ }
+
+ // Optimistically, assume all valid UTF-8.
+ var b strings.Builder
+ count := 0
+ for i, c := range s {
+ if c != utf8.RuneError {
+ count++
+ if count > limit {
+ return s[:i]
+ }
+ continue
+ }
+
+ _, size := utf8.DecodeRuneInString(s[i:])
+ if size == 1 {
+ // Invalid encoding.
+ b.Grow(len(s) - 1)
+ _, _ = b.WriteString(s[:i])
+ s = s[i:]
+ break
+ }
+ }
+
+ // Fast-path, no invalid input.
+ if b.Cap() == 0 {
+ return s
+ }
+
+ // Truncate while validating UTF-8.
+ for i := 0; i < len(s) && count < limit; {
+ c := s[i]
+ if c < utf8.RuneSelf {
+ // Optimization for single byte runes (common case).
+ _ = b.WriteByte(c)
+ i++
+ count++
+ continue
+ }
+
+ _, size := utf8.DecodeRuneInString(s[i:])
+ if size == 1 {
+ // We checked for all 1-byte runes above, this is a RuneError.
+ i++
+ continue
+ }
+
+ _, _ = b.WriteString(s[i : i+size])
+ i += size
+ count++
+ }
+
+ return b.String()
+}
+
+// End ends the span. This method does nothing if the span is already ended or
+// is not being recorded.
+//
+// The only SpanEndOption currently supported are [trace.WithTimestamp], and
+// [trace.WithStackTrace].
+//
+// If this method is called while panicking an error event is added to the
+// Span before ending it and the panic is continued.
+func (s *recordingSpan) End(options ...trace.SpanEndOption) {
+ // Do not start by checking if the span is being recorded which requires
+ // acquiring a lock. Make a minimal check that the span is not nil.
+ if s == nil {
+ return
+ }
+
+ // Store the end time as soon as possible to avoid artificially increasing
+ // the span's duration in case some operation below takes a while.
+ et := monotonicEndTime(s.startTime)
+
+ // Lock the span now that we have an end time and see if we need to do any more processing.
+ s.mu.Lock()
+ if !s.isRecording() {
+ s.mu.Unlock()
+ return
+ }
+
+ config := trace.NewSpanEndConfig(options...)
+ if recovered := recover(); recovered != nil {
+ // Record but don't stop the panic.
+ defer panic(recovered)
+ opts := []trace.EventOption{
+ trace.WithAttributes(
+ semconv.ExceptionType(typeStr(recovered)),
+ semconv.ExceptionMessage(fmt.Sprint(recovered)),
+ ),
+ }
+
+ if config.StackTrace() {
+ opts = append(opts, trace.WithAttributes(
+ semconv.ExceptionStacktrace(recordStackTrace()),
+ ))
+ }
+
+ s.addEvent(semconv.ExceptionEventName, opts...)
+ }
+
+ if s.executionTracerTaskEnd != nil {
+ s.mu.Unlock()
+ s.executionTracerTaskEnd()
+ s.mu.Lock()
+ }
+
+ // Setting endTime to non-zero marks the span as ended and not recording.
+ if config.Timestamp().IsZero() {
+ s.endTime = et
+ } else {
+ s.endTime = config.Timestamp()
+ }
+ s.mu.Unlock()
+
+ sps := s.tracer.provider.getSpanProcessors()
+ if len(sps) == 0 {
+ return
+ }
+ snap := s.snapshot()
+ for _, sp := range sps {
+ sp.sp.OnEnd(snap)
+ }
+}
+
+// monotonicEndTime returns the end time at present but offset from start,
+// monotonically.
+//
+// The monotonic clock is used in subtractions hence the duration since start
+// added back to start gives end as a monotonic time. See
+// https://golang.org/pkg/time/#hdr-Monotonic_Clocks
+func monotonicEndTime(start time.Time) time.Time {
+ return start.Add(time.Since(start))
+}
+
+// RecordError will record err as a span event for this span. An additional call to
+// SetStatus is required if the Status of the Span should be set to Error, this method
+// does not change the Span status. If this span is not being recorded or err is nil
+// than this method does nothing.
+func (s *recordingSpan) RecordError(err error, opts ...trace.EventOption) {
+ if s == nil || err == nil {
+ return
+ }
+
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if !s.isRecording() {
+ return
+ }
+
+ opts = append(opts, trace.WithAttributes(
+ semconv.ExceptionType(typeStr(err)),
+ semconv.ExceptionMessage(err.Error()),
+ ))
+
+ c := trace.NewEventConfig(opts...)
+ if c.StackTrace() {
+ opts = append(opts, trace.WithAttributes(
+ semconv.ExceptionStacktrace(recordStackTrace()),
+ ))
+ }
+
+ s.addEvent(semconv.ExceptionEventName, opts...)
+}
+
+func typeStr(i interface{}) string {
+ t := reflect.TypeOf(i)
+ if t.PkgPath() == "" && t.Name() == "" {
+ // Likely a builtin type.
+ return t.String()
+ }
+ return fmt.Sprintf("%s.%s", t.PkgPath(), t.Name())
+}
+
+func recordStackTrace() string {
+ stackTrace := make([]byte, 2048)
+ n := runtime.Stack(stackTrace, false)
+
+ return string(stackTrace[0:n])
+}
+
+// AddEvent adds an event with the provided name and options. If this span is
+// not being recorded then this method does nothing.
+func (s *recordingSpan) AddEvent(name string, o ...trace.EventOption) {
+ if s == nil {
+ return
+ }
+
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if !s.isRecording() {
+ return
+ }
+ s.addEvent(name, o...)
+}
+
+// addEvent adds an event with the provided name and options.
+//
+// This method assumes s.mu.Lock is held by the caller.
+func (s *recordingSpan) addEvent(name string, o ...trace.EventOption) {
+ c := trace.NewEventConfig(o...)
+ e := Event{Name: name, Attributes: c.Attributes(), Time: c.Timestamp()}
+
+ // Discard attributes over limit.
+ limit := s.tracer.provider.spanLimits.AttributePerEventCountLimit
+ if limit == 0 {
+ // Drop all attributes.
+ e.DroppedAttributeCount = len(e.Attributes)
+ e.Attributes = nil
+ } else if limit > 0 && len(e.Attributes) > limit {
+ // Drop over capacity.
+ e.DroppedAttributeCount = len(e.Attributes) - limit
+ e.Attributes = e.Attributes[:limit]
+ }
+
+ s.events.add(e)
+}
+
+// SetName sets the name of this span. If this span is not being recorded than
+// this method does nothing.
+func (s *recordingSpan) SetName(name string) {
+ if s == nil {
+ return
+ }
+
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if !s.isRecording() {
+ return
+ }
+ s.name = name
+}
+
+// Name returns the name of this span.
+func (s *recordingSpan) Name() string {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.name
+}
+
+// Name returns the SpanContext of this span's parent span.
+func (s *recordingSpan) Parent() trace.SpanContext {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.parent
+}
+
+// SpanKind returns the SpanKind of this span.
+func (s *recordingSpan) SpanKind() trace.SpanKind {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.spanKind
+}
+
+// StartTime returns the time this span started.
+func (s *recordingSpan) StartTime() time.Time {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.startTime
+}
+
+// EndTime returns the time this span ended. For spans that have not yet
+// ended, the returned value will be the zero value of time.Time.
+func (s *recordingSpan) EndTime() time.Time {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.endTime
+}
+
+// Attributes returns the attributes of this span.
+//
+// The order of the returned attributes is not guaranteed to be stable.
+func (s *recordingSpan) Attributes() []attribute.KeyValue {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ s.dedupeAttrs()
+ return s.attributes
+}
+
+// dedupeAttrs deduplicates the attributes of s to fit capacity.
+//
+// This method assumes s.mu.Lock is held by the caller.
+func (s *recordingSpan) dedupeAttrs() {
+ // Do not set a capacity when creating this map. Benchmark testing has
+ // showed this to only add unused memory allocations in general use.
+ exists := make(map[attribute.Key]int, len(s.attributes))
+ s.dedupeAttrsFromRecord(exists)
+}
+
+// dedupeAttrsFromRecord deduplicates the attributes of s to fit capacity
+// using record as the record of unique attribute keys to their index.
+//
+// This method assumes s.mu.Lock is held by the caller.
+func (s *recordingSpan) dedupeAttrsFromRecord(record map[attribute.Key]int) {
+ // Use the fact that slices share the same backing array.
+ unique := s.attributes[:0]
+ for _, a := range s.attributes {
+ if idx, ok := record[a.Key]; ok {
+ unique[idx] = a
+ } else {
+ unique = append(unique, a)
+ record[a.Key] = len(unique) - 1
+ }
+ }
+ clear(s.attributes[len(unique):]) // Erase unneeded elements to let GC collect objects.
+ s.attributes = unique
+}
+
+// Links returns the links of this span.
+func (s *recordingSpan) Links() []Link {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if len(s.links.queue) == 0 {
+ return []Link{}
+ }
+ return s.links.copy()
+}
+
+// Events returns the events of this span.
+func (s *recordingSpan) Events() []Event {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if len(s.events.queue) == 0 {
+ return []Event{}
+ }
+ return s.events.copy()
+}
+
+// Status returns the status of this span.
+func (s *recordingSpan) Status() Status {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.status
+}
+
+// InstrumentationScope returns the instrumentation.Scope associated with
+// the Tracer that created this span.
+func (s *recordingSpan) InstrumentationScope() instrumentation.Scope {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.tracer.instrumentationScope
+}
+
+// InstrumentationLibrary returns the instrumentation.Library associated with
+// the Tracer that created this span.
+func (s *recordingSpan) InstrumentationLibrary() instrumentation.Library { //nolint:staticcheck // This method needs to be define for backwards compatibility
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.tracer.instrumentationScope
+}
+
+// Resource returns the Resource associated with the Tracer that created this
+// span.
+func (s *recordingSpan) Resource() *resource.Resource {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.tracer.provider.resource
+}
+
+func (s *recordingSpan) AddLink(link trace.Link) {
+ if s == nil {
+ return
+ }
+ if !link.SpanContext.IsValid() && len(link.Attributes) == 0 &&
+ link.SpanContext.TraceState().Len() == 0 {
+ return
+ }
+
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if !s.isRecording() {
+ return
+ }
+
+ l := Link{SpanContext: link.SpanContext, Attributes: link.Attributes}
+
+ // Discard attributes over limit.
+ limit := s.tracer.provider.spanLimits.AttributePerLinkCountLimit
+ if limit == 0 {
+ // Drop all attributes.
+ l.DroppedAttributeCount = len(l.Attributes)
+ l.Attributes = nil
+ } else if limit > 0 && len(l.Attributes) > limit {
+ l.DroppedAttributeCount = len(l.Attributes) - limit
+ l.Attributes = l.Attributes[:limit]
+ }
+
+ s.links.add(l)
+}
+
+// DroppedAttributes returns the number of attributes dropped by the span
+// due to limits being reached.
+func (s *recordingSpan) DroppedAttributes() int {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.droppedAttributes
+}
+
+// DroppedLinks returns the number of links dropped by the span due to limits
+// being reached.
+func (s *recordingSpan) DroppedLinks() int {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.links.droppedCount
+}
+
+// DroppedEvents returns the number of events dropped by the span due to
+// limits being reached.
+func (s *recordingSpan) DroppedEvents() int {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.events.droppedCount
+}
+
+// ChildSpanCount returns the count of spans that consider the span a
+// direct parent.
+func (s *recordingSpan) ChildSpanCount() int {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.childSpanCount
+}
+
+// TracerProvider returns a trace.TracerProvider that can be used to generate
+// additional Spans on the same telemetry pipeline as the current Span.
+func (s *recordingSpan) TracerProvider() trace.TracerProvider {
+ return s.tracer.provider
+}
+
+// snapshot creates a read-only copy of the current state of the span.
+func (s *recordingSpan) snapshot() ReadOnlySpan {
+ var sd snapshot
+ s.mu.Lock()
+ defer s.mu.Unlock()
+
+ sd.endTime = s.endTime
+ sd.instrumentationScope = s.tracer.instrumentationScope
+ sd.name = s.name
+ sd.parent = s.parent
+ sd.resource = s.tracer.provider.resource
+ sd.spanContext = s.spanContext
+ sd.spanKind = s.spanKind
+ sd.startTime = s.startTime
+ sd.status = s.status
+ sd.childSpanCount = s.childSpanCount
+
+ if len(s.attributes) > 0 {
+ s.dedupeAttrs()
+ sd.attributes = s.attributes
+ }
+ sd.droppedAttributeCount = s.droppedAttributes
+ if len(s.events.queue) > 0 {
+ sd.events = s.events.copy()
+ sd.droppedEventCount = s.events.droppedCount
+ }
+ if len(s.links.queue) > 0 {
+ sd.links = s.links.copy()
+ sd.droppedLinkCount = s.links.droppedCount
+ }
+ return &sd
+}
+
+func (s *recordingSpan) addChild() {
+ if s == nil {
+ return
+ }
+
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if !s.isRecording() {
+ return
+ }
+ s.childSpanCount++
+}
+
+func (*recordingSpan) private() {}
+
+// runtimeTrace starts a "runtime/trace".Task for the span and returns a
+// context containing the task.
+func (s *recordingSpan) runtimeTrace(ctx context.Context) context.Context {
+ if !rt.IsEnabled() {
+ // Avoid additional overhead if runtime/trace is not enabled.
+ return ctx
+ }
+ nctx, task := rt.NewTask(ctx, s.name)
+
+ s.mu.Lock()
+ s.executionTracerTaskEnd = task.End
+ s.mu.Unlock()
+
+ return nctx
+}
+
+// nonRecordingSpan is a minimal implementation of the OpenTelemetry Span API
+// that wraps a SpanContext. It performs no operations other than to return
+// the wrapped SpanContext or TracerProvider that created it.
+type nonRecordingSpan struct {
+ embedded.Span
+
+ // tracer is the SDK tracer that created this span.
+ tracer *tracer
+ sc trace.SpanContext
+}
+
+var _ trace.Span = nonRecordingSpan{}
+
+// SpanContext returns the wrapped SpanContext.
+func (s nonRecordingSpan) SpanContext() trace.SpanContext { return s.sc }
+
+// IsRecording always returns false.
+func (nonRecordingSpan) IsRecording() bool { return false }
+
+// SetStatus does nothing.
+func (nonRecordingSpan) SetStatus(codes.Code, string) {}
+
+// SetError does nothing.
+func (nonRecordingSpan) SetError(bool) {}
+
+// SetAttributes does nothing.
+func (nonRecordingSpan) SetAttributes(...attribute.KeyValue) {}
+
+// End does nothing.
+func (nonRecordingSpan) End(...trace.SpanEndOption) {}
+
+// RecordError does nothing.
+func (nonRecordingSpan) RecordError(error, ...trace.EventOption) {}
+
+// AddEvent does nothing.
+func (nonRecordingSpan) AddEvent(string, ...trace.EventOption) {}
+
+// AddLink does nothing.
+func (nonRecordingSpan) AddLink(trace.Link) {}
+
+// SetName does nothing.
+func (nonRecordingSpan) SetName(string) {}
+
+// TracerProvider returns the trace.TracerProvider that provided the Tracer
+// that created this span.
+func (s nonRecordingSpan) TracerProvider() trace.TracerProvider { return s.tracer.provider }
+
+func isRecording(s SamplingResult) bool {
+ return s.Decision == RecordOnly || s.Decision == RecordAndSample
+}
+
+func isSampled(s SamplingResult) bool {
+ return s.Decision == RecordAndSample
+}
+
+// Status is the classified state of a Span.
+type Status struct {
+ // Code is an identifier of a Spans state classification.
+ Code codes.Code
+ // Description is a user hint about why that status was set. It is only
+ // applicable when Code is Error.
+ Description string
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/span_exporter.go b/vendor/go.opentelemetry.io/otel/sdk/trace/span_exporter.go
new file mode 100644
index 0000000..6bdda3d
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/span_exporter.go
@@ -0,0 +1,36 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import "context"
+
+// SpanExporter handles the delivery of spans to external receivers. This is
+// the final component in the trace export pipeline.
+type SpanExporter interface {
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // ExportSpans exports a batch of spans.
+ //
+ // This function is called synchronously, so there is no concurrency
+ // safety requirement. However, due to the synchronous calling pattern,
+ // it is critical that all timeouts and cancellations contained in the
+ // passed context must be honored.
+ //
+ // Any retry logic must be contained in this function. The SDK that
+ // calls this function will not implement any retry logic. All errors
+ // returned by this function are considered unrecoverable and will be
+ // reported to a configured error Handler.
+ ExportSpans(ctx context.Context, spans []ReadOnlySpan) error
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // Shutdown notifies the exporter of a pending halt to operations. The
+ // exporter is expected to perform any cleanup or synchronization it
+ // requires while honoring all timeouts and cancellations contained in
+ // the passed context.
+ Shutdown(ctx context.Context) error
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/span_limits.go b/vendor/go.opentelemetry.io/otel/sdk/trace/span_limits.go
new file mode 100644
index 0000000..bec5e20
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/span_limits.go
@@ -0,0 +1,114 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import "go.opentelemetry.io/otel/sdk/internal/env"
+
+const (
+ // DefaultAttributeValueLengthLimit is the default maximum allowed
+ // attribute value length, unlimited.
+ DefaultAttributeValueLengthLimit = -1
+
+ // DefaultAttributeCountLimit is the default maximum number of attributes
+ // a span can have.
+ DefaultAttributeCountLimit = 128
+
+ // DefaultEventCountLimit is the default maximum number of events a span
+ // can have.
+ DefaultEventCountLimit = 128
+
+ // DefaultLinkCountLimit is the default maximum number of links a span can
+ // have.
+ DefaultLinkCountLimit = 128
+
+ // DefaultAttributePerEventCountLimit is the default maximum number of
+ // attributes a span event can have.
+ DefaultAttributePerEventCountLimit = 128
+
+ // DefaultAttributePerLinkCountLimit is the default maximum number of
+ // attributes a span link can have.
+ DefaultAttributePerLinkCountLimit = 128
+)
+
+// SpanLimits represents the limits of a span.
+type SpanLimits struct {
+ // AttributeValueLengthLimit is the maximum allowed attribute value length.
+ //
+ // This limit only applies to string and string slice attribute values.
+ // Any string longer than this value will be truncated to this length.
+ //
+ // Setting this to a negative value means no limit is applied.
+ AttributeValueLengthLimit int
+
+ // AttributeCountLimit is the maximum allowed span attribute count. Any
+ // attribute added to a span once this limit is reached will be dropped.
+ //
+ // Setting this to zero means no attributes will be recorded.
+ //
+ // Setting this to a negative value means no limit is applied.
+ AttributeCountLimit int
+
+ // EventCountLimit is the maximum allowed span event count. Any event
+ // added to a span once this limit is reached means it will be added but
+ // the oldest event will be dropped.
+ //
+ // Setting this to zero means no events we be recorded.
+ //
+ // Setting this to a negative value means no limit is applied.
+ EventCountLimit int
+
+ // LinkCountLimit is the maximum allowed span link count. Any link added
+ // to a span once this limit is reached means it will be added but the
+ // oldest link will be dropped.
+ //
+ // Setting this to zero means no links we be recorded.
+ //
+ // Setting this to a negative value means no limit is applied.
+ LinkCountLimit int
+
+ // AttributePerEventCountLimit is the maximum number of attributes allowed
+ // per span event. Any attribute added after this limit reached will be
+ // dropped.
+ //
+ // Setting this to zero means no attributes will be recorded for events.
+ //
+ // Setting this to a negative value means no limit is applied.
+ AttributePerEventCountLimit int
+
+ // AttributePerLinkCountLimit is the maximum number of attributes allowed
+ // per span link. Any attribute added after this limit reached will be
+ // dropped.
+ //
+ // Setting this to zero means no attributes will be recorded for links.
+ //
+ // Setting this to a negative value means no limit is applied.
+ AttributePerLinkCountLimit int
+}
+
+// NewSpanLimits returns a SpanLimits with all limits set to the value their
+// corresponding environment variable holds, or the default if unset.
+//
+// • AttributeValueLengthLimit: OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT
+// (default: unlimited)
+//
+// • AttributeCountLimit: OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT (default: 128)
+//
+// • EventCountLimit: OTEL_SPAN_EVENT_COUNT_LIMIT (default: 128)
+//
+// • AttributePerEventCountLimit: OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT (default:
+// 128)
+//
+// • LinkCountLimit: OTEL_SPAN_LINK_COUNT_LIMIT (default: 128)
+//
+// • AttributePerLinkCountLimit: OTEL_LINK_ATTRIBUTE_COUNT_LIMIT (default: 128)
+func NewSpanLimits() SpanLimits {
+ return SpanLimits{
+ AttributeValueLengthLimit: env.SpanAttributeValueLength(DefaultAttributeValueLengthLimit),
+ AttributeCountLimit: env.SpanAttributeCount(DefaultAttributeCountLimit),
+ EventCountLimit: env.SpanEventCount(DefaultEventCountLimit),
+ LinkCountLimit: env.SpanLinkCount(DefaultLinkCountLimit),
+ AttributePerEventCountLimit: env.SpanEventAttributeCount(DefaultAttributePerEventCountLimit),
+ AttributePerLinkCountLimit: env.SpanLinkAttributeCount(DefaultAttributePerLinkCountLimit),
+ }
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/span_processor.go b/vendor/go.opentelemetry.io/otel/sdk/trace/span_processor.go
new file mode 100644
index 0000000..af7f917
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/span_processor.go
@@ -0,0 +1,61 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "sync"
+)
+
+// SpanProcessor is a processing pipeline for spans in the trace signal.
+// SpanProcessors registered with a TracerProvider and are called at the start
+// and end of a Span's lifecycle, and are called in the order they are
+// registered.
+type SpanProcessor interface {
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // OnStart is called when a span is started. It is called synchronously
+ // and should not block.
+ OnStart(parent context.Context, s ReadWriteSpan)
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // OnEnd is called when span is finished. It is called synchronously and
+ // hence not block.
+ OnEnd(s ReadOnlySpan)
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // Shutdown is called when the SDK shuts down. Any cleanup or release of
+ // resources held by the processor should be done in this call.
+ //
+ // Calls to OnStart, OnEnd, or ForceFlush after this has been called
+ // should be ignored.
+ //
+ // All timeouts and cancellations contained in ctx must be honored, this
+ // should not block indefinitely.
+ Shutdown(ctx context.Context) error
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+
+ // ForceFlush exports all ended spans to the configured Exporter that have not yet
+ // been exported. It should only be called when absolutely necessary, such as when
+ // using a FaaS provider that may suspend the process after an invocation, but before
+ // the Processor can export the completed spans.
+ ForceFlush(ctx context.Context) error
+ // DO NOT CHANGE: any modification will not be backwards compatible and
+ // must never be done outside of a new major release.
+}
+
+type spanProcessorState struct {
+ sp SpanProcessor
+ state sync.Once
+}
+
+func newSpanProcessorState(sp SpanProcessor) *spanProcessorState {
+ return &spanProcessorState{sp: sp}
+}
+
+type spanProcessorStates []*spanProcessorState
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/tracer.go b/vendor/go.opentelemetry.io/otel/sdk/trace/tracer.go
new file mode 100644
index 0000000..0b65ae9
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/tracer.go
@@ -0,0 +1,162 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+import (
+ "context"
+ "time"
+
+ "go.opentelemetry.io/otel/sdk/instrumentation"
+ "go.opentelemetry.io/otel/trace"
+ "go.opentelemetry.io/otel/trace/embedded"
+)
+
+type tracer struct {
+ embedded.Tracer
+
+ provider *TracerProvider
+ instrumentationScope instrumentation.Scope
+}
+
+var _ trace.Tracer = &tracer{}
+
+// Start starts a Span and returns it along with a context containing it.
+//
+// The Span is created with the provided name and as a child of any existing
+// span context found in the passed context. The created Span will be
+// configured appropriately by any SpanOption passed.
+func (tr *tracer) Start(
+ ctx context.Context,
+ name string,
+ options ...trace.SpanStartOption,
+) (context.Context, trace.Span) {
+ config := trace.NewSpanStartConfig(options...)
+
+ if ctx == nil {
+ // Prevent trace.ContextWithSpan from panicking.
+ ctx = context.Background()
+ }
+
+ // For local spans created by this SDK, track child span count.
+ if p := trace.SpanFromContext(ctx); p != nil {
+ if sdkSpan, ok := p.(*recordingSpan); ok {
+ sdkSpan.addChild()
+ }
+ }
+
+ s := tr.newSpan(ctx, name, &config)
+ if rw, ok := s.(ReadWriteSpan); ok && s.IsRecording() {
+ sps := tr.provider.getSpanProcessors()
+ for _, sp := range sps {
+ sp.sp.OnStart(ctx, rw)
+ }
+ }
+ if rtt, ok := s.(runtimeTracer); ok {
+ ctx = rtt.runtimeTrace(ctx)
+ }
+
+ return trace.ContextWithSpan(ctx, s), s
+}
+
+type runtimeTracer interface {
+ // runtimeTrace starts a "runtime/trace".Task for the span and
+ // returns a context containing the task.
+ runtimeTrace(ctx context.Context) context.Context
+}
+
+// newSpan returns a new configured span.
+func (tr *tracer) newSpan(ctx context.Context, name string, config *trace.SpanConfig) trace.Span {
+ // If told explicitly to make this a new root use a zero value SpanContext
+ // as a parent which contains an invalid trace ID and is not remote.
+ var psc trace.SpanContext
+ if config.NewRoot() {
+ ctx = trace.ContextWithSpanContext(ctx, psc)
+ } else {
+ psc = trace.SpanContextFromContext(ctx)
+ }
+
+ // If there is a valid parent trace ID, use it to ensure the continuity of
+ // the trace. Always generate a new span ID so other components can rely
+ // on a unique span ID, even if the Span is non-recording.
+ var tid trace.TraceID
+ var sid trace.SpanID
+ if !psc.TraceID().IsValid() {
+ tid, sid = tr.provider.idGenerator.NewIDs(ctx)
+ } else {
+ tid = psc.TraceID()
+ sid = tr.provider.idGenerator.NewSpanID(ctx, tid)
+ }
+
+ samplingResult := tr.provider.sampler.ShouldSample(SamplingParameters{
+ ParentContext: ctx,
+ TraceID: tid,
+ Name: name,
+ Kind: config.SpanKind(),
+ Attributes: config.Attributes(),
+ Links: config.Links(),
+ })
+
+ scc := trace.SpanContextConfig{
+ TraceID: tid,
+ SpanID: sid,
+ TraceState: samplingResult.Tracestate,
+ }
+ if isSampled(samplingResult) {
+ scc.TraceFlags = psc.TraceFlags() | trace.FlagsSampled
+ } else {
+ scc.TraceFlags = psc.TraceFlags() &^ trace.FlagsSampled
+ }
+ sc := trace.NewSpanContext(scc)
+
+ if !isRecording(samplingResult) {
+ return tr.newNonRecordingSpan(sc)
+ }
+ return tr.newRecordingSpan(psc, sc, name, samplingResult, config)
+}
+
+// newRecordingSpan returns a new configured recordingSpan.
+func (tr *tracer) newRecordingSpan(
+ psc, sc trace.SpanContext,
+ name string,
+ sr SamplingResult,
+ config *trace.SpanConfig,
+) *recordingSpan {
+ startTime := config.Timestamp()
+ if startTime.IsZero() {
+ startTime = time.Now()
+ }
+
+ s := &recordingSpan{
+ // Do not pre-allocate the attributes slice here! Doing so will
+ // allocate memory that is likely never going to be used, or if used,
+ // will be over-sized. The default Go compiler has been tested to
+ // dynamically allocate needed space very well. Benchmarking has shown
+ // it to be more performant than what we can predetermine here,
+ // especially for the common use case of few to no added
+ // attributes.
+
+ parent: psc,
+ spanContext: sc,
+ spanKind: trace.ValidateSpanKind(config.SpanKind()),
+ name: name,
+ startTime: startTime,
+ events: newEvictedQueueEvent(tr.provider.spanLimits.EventCountLimit),
+ links: newEvictedQueueLink(tr.provider.spanLimits.LinkCountLimit),
+ tracer: tr,
+ }
+
+ for _, l := range config.Links() {
+ s.AddLink(l)
+ }
+
+ s.SetAttributes(sr.Attributes...)
+ s.SetAttributes(config.Attributes()...)
+
+ return s
+}
+
+// newNonRecordingSpan returns a new configured nonRecordingSpan.
+func (tr *tracer) newNonRecordingSpan(sc trace.SpanContext) nonRecordingSpan {
+ return nonRecordingSpan{tracer: tr, sc: sc}
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/version.go b/vendor/go.opentelemetry.io/otel/sdk/trace/version.go
new file mode 100644
index 0000000..b84dd2c
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/version.go
@@ -0,0 +1,9 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
+
+// version is the current release version of the metric SDK in use.
+func version() string {
+ return "1.16.0-rc.1"
+}
diff --git a/vendor/go.opentelemetry.io/otel/sdk/version.go b/vendor/go.opentelemetry.io/otel/sdk/version.go
new file mode 100644
index 0000000..c0217af
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/version.go
@@ -0,0 +1,10 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package sdk provides the OpenTelemetry default SDK for Go.
+package sdk // import "go.opentelemetry.io/otel/sdk"
+
+// Version is the current release version of the OpenTelemetry SDK in use.
+func Version() string {
+ return "1.37.0"
+}