| Abhay Kumar | a2ae599 | 2025-11-10 14:02:24 +0000 | [diff] [blame^] | 1 | // Copyright The OpenTelemetry Authors |
| 2 | // SPDX-License-Identifier: Apache-2.0 |
| 3 | |
| 4 | package metric // import "go.opentelemetry.io/otel/metric" |
| 5 | |
| 6 | import ( |
| 7 | "context" |
| 8 | |
| 9 | "go.opentelemetry.io/otel/metric/embedded" |
| 10 | ) |
| 11 | |
| 12 | // Int64Counter is an instrument that records increasing int64 values. |
| 13 | // |
| 14 | // Warning: Methods may be added to this interface in minor releases. See |
| 15 | // package documentation on API implementation for information on how to set |
| 16 | // default behavior for unimplemented methods. |
| 17 | type Int64Counter interface { |
| 18 | // Users of the interface can ignore this. This embedded type is only used |
| 19 | // by implementations of this interface. See the "API Implementations" |
| 20 | // section of the package documentation for more information. |
| 21 | embedded.Int64Counter |
| 22 | |
| 23 | // Add records a change to the counter. |
| 24 | // |
| 25 | // Use the WithAttributeSet (or, if performance is not a concern, |
| 26 | // the WithAttributes) option to include measurement attributes. |
| 27 | Add(ctx context.Context, incr int64, options ...AddOption) |
| 28 | } |
| 29 | |
| 30 | // Int64CounterConfig contains options for synchronous counter instruments that |
| 31 | // record int64 values. |
| 32 | type Int64CounterConfig struct { |
| 33 | description string |
| 34 | unit string |
| 35 | } |
| 36 | |
| 37 | // NewInt64CounterConfig returns a new [Int64CounterConfig] with all opts |
| 38 | // applied. |
| 39 | func NewInt64CounterConfig(opts ...Int64CounterOption) Int64CounterConfig { |
| 40 | var config Int64CounterConfig |
| 41 | for _, o := range opts { |
| 42 | config = o.applyInt64Counter(config) |
| 43 | } |
| 44 | return config |
| 45 | } |
| 46 | |
| 47 | // Description returns the configured description. |
| 48 | func (c Int64CounterConfig) Description() string { |
| 49 | return c.description |
| 50 | } |
| 51 | |
| 52 | // Unit returns the configured unit. |
| 53 | func (c Int64CounterConfig) Unit() string { |
| 54 | return c.unit |
| 55 | } |
| 56 | |
| 57 | // Int64CounterOption applies options to a [Int64CounterConfig]. See |
| 58 | // [InstrumentOption] for other options that can be used as an |
| 59 | // Int64CounterOption. |
| 60 | type Int64CounterOption interface { |
| 61 | applyInt64Counter(Int64CounterConfig) Int64CounterConfig |
| 62 | } |
| 63 | |
| 64 | // Int64UpDownCounter is an instrument that records increasing or decreasing |
| 65 | // int64 values. |
| 66 | // |
| 67 | // Warning: Methods may be added to this interface in minor releases. See |
| 68 | // package documentation on API implementation for information on how to set |
| 69 | // default behavior for unimplemented methods. |
| 70 | type Int64UpDownCounter interface { |
| 71 | // Users of the interface can ignore this. This embedded type is only used |
| 72 | // by implementations of this interface. See the "API Implementations" |
| 73 | // section of the package documentation for more information. |
| 74 | embedded.Int64UpDownCounter |
| 75 | |
| 76 | // Add records a change to the counter. |
| 77 | // |
| 78 | // Use the WithAttributeSet (or, if performance is not a concern, |
| 79 | // the WithAttributes) option to include measurement attributes. |
| 80 | Add(ctx context.Context, incr int64, options ...AddOption) |
| 81 | } |
| 82 | |
| 83 | // Int64UpDownCounterConfig contains options for synchronous counter |
| 84 | // instruments that record int64 values. |
| 85 | type Int64UpDownCounterConfig struct { |
| 86 | description string |
| 87 | unit string |
| 88 | } |
| 89 | |
| 90 | // NewInt64UpDownCounterConfig returns a new [Int64UpDownCounterConfig] with |
| 91 | // all opts applied. |
| 92 | func NewInt64UpDownCounterConfig(opts ...Int64UpDownCounterOption) Int64UpDownCounterConfig { |
| 93 | var config Int64UpDownCounterConfig |
| 94 | for _, o := range opts { |
| 95 | config = o.applyInt64UpDownCounter(config) |
| 96 | } |
| 97 | return config |
| 98 | } |
| 99 | |
| 100 | // Description returns the configured description. |
| 101 | func (c Int64UpDownCounterConfig) Description() string { |
| 102 | return c.description |
| 103 | } |
| 104 | |
| 105 | // Unit returns the configured unit. |
| 106 | func (c Int64UpDownCounterConfig) Unit() string { |
| 107 | return c.unit |
| 108 | } |
| 109 | |
| 110 | // Int64UpDownCounterOption applies options to a [Int64UpDownCounterConfig]. |
| 111 | // See [InstrumentOption] for other options that can be used as an |
| 112 | // Int64UpDownCounterOption. |
| 113 | type Int64UpDownCounterOption interface { |
| 114 | applyInt64UpDownCounter(Int64UpDownCounterConfig) Int64UpDownCounterConfig |
| 115 | } |
| 116 | |
| 117 | // Int64Histogram is an instrument that records a distribution of int64 |
| 118 | // values. |
| 119 | // |
| 120 | // Warning: Methods may be added to this interface in minor releases. See |
| 121 | // package documentation on API implementation for information on how to set |
| 122 | // default behavior for unimplemented methods. |
| 123 | type Int64Histogram interface { |
| 124 | // Users of the interface can ignore this. This embedded type is only used |
| 125 | // by implementations of this interface. See the "API Implementations" |
| 126 | // section of the package documentation for more information. |
| 127 | embedded.Int64Histogram |
| 128 | |
| 129 | // Record adds an additional value to the distribution. |
| 130 | // |
| 131 | // Use the WithAttributeSet (or, if performance is not a concern, |
| 132 | // the WithAttributes) option to include measurement attributes. |
| 133 | Record(ctx context.Context, incr int64, options ...RecordOption) |
| 134 | } |
| 135 | |
| 136 | // Int64HistogramConfig contains options for synchronous histogram instruments |
| 137 | // that record int64 values. |
| 138 | type Int64HistogramConfig struct { |
| 139 | description string |
| 140 | unit string |
| 141 | explicitBucketBoundaries []float64 |
| 142 | } |
| 143 | |
| 144 | // NewInt64HistogramConfig returns a new [Int64HistogramConfig] with all opts |
| 145 | // applied. |
| 146 | func NewInt64HistogramConfig(opts ...Int64HistogramOption) Int64HistogramConfig { |
| 147 | var config Int64HistogramConfig |
| 148 | for _, o := range opts { |
| 149 | config = o.applyInt64Histogram(config) |
| 150 | } |
| 151 | return config |
| 152 | } |
| 153 | |
| 154 | // Description returns the configured description. |
| 155 | func (c Int64HistogramConfig) Description() string { |
| 156 | return c.description |
| 157 | } |
| 158 | |
| 159 | // Unit returns the configured unit. |
| 160 | func (c Int64HistogramConfig) Unit() string { |
| 161 | return c.unit |
| 162 | } |
| 163 | |
| 164 | // ExplicitBucketBoundaries returns the configured explicit bucket boundaries. |
| 165 | func (c Int64HistogramConfig) ExplicitBucketBoundaries() []float64 { |
| 166 | return c.explicitBucketBoundaries |
| 167 | } |
| 168 | |
| 169 | // Int64HistogramOption applies options to a [Int64HistogramConfig]. See |
| 170 | // [InstrumentOption] for other options that can be used as an |
| 171 | // Int64HistogramOption. |
| 172 | type Int64HistogramOption interface { |
| 173 | applyInt64Histogram(Int64HistogramConfig) Int64HistogramConfig |
| 174 | } |
| 175 | |
| 176 | // Int64Gauge is an instrument that records instantaneous int64 values. |
| 177 | // |
| 178 | // Warning: Methods may be added to this interface in minor releases. See |
| 179 | // package documentation on API implementation for information on how to set |
| 180 | // default behavior for unimplemented methods. |
| 181 | type Int64Gauge interface { |
| 182 | // Users of the interface can ignore this. This embedded type is only used |
| 183 | // by implementations of this interface. See the "API Implementations" |
| 184 | // section of the package documentation for more information. |
| 185 | embedded.Int64Gauge |
| 186 | |
| 187 | // Record records the instantaneous value. |
| 188 | // |
| 189 | // Use the WithAttributeSet (or, if performance is not a concern, |
| 190 | // the WithAttributes) option to include measurement attributes. |
| 191 | Record(ctx context.Context, value int64, options ...RecordOption) |
| 192 | } |
| 193 | |
| 194 | // Int64GaugeConfig contains options for synchronous gauge instruments that |
| 195 | // record int64 values. |
| 196 | type Int64GaugeConfig struct { |
| 197 | description string |
| 198 | unit string |
| 199 | } |
| 200 | |
| 201 | // NewInt64GaugeConfig returns a new [Int64GaugeConfig] with all opts |
| 202 | // applied. |
| 203 | func NewInt64GaugeConfig(opts ...Int64GaugeOption) Int64GaugeConfig { |
| 204 | var config Int64GaugeConfig |
| 205 | for _, o := range opts { |
| 206 | config = o.applyInt64Gauge(config) |
| 207 | } |
| 208 | return config |
| 209 | } |
| 210 | |
| 211 | // Description returns the configured description. |
| 212 | func (c Int64GaugeConfig) Description() string { |
| 213 | return c.description |
| 214 | } |
| 215 | |
| 216 | // Unit returns the configured unit. |
| 217 | func (c Int64GaugeConfig) Unit() string { |
| 218 | return c.unit |
| 219 | } |
| 220 | |
| 221 | // Int64GaugeOption applies options to a [Int64GaugeConfig]. See |
| 222 | // [InstrumentOption] for other options that can be used as a |
| 223 | // Int64GaugeOption. |
| 224 | type Int64GaugeOption interface { |
| 225 | applyInt64Gauge(Int64GaugeConfig) Int64GaugeConfig |
| 226 | } |