[CORD-2809] Synchronizer OLTDevice in VOLTHA

Change-Id: Ie4f2e10efd035e3fcb6066e5f7bd859179fa2fea
diff --git a/xos/synchronizer/steps/sync_olt_device.py b/xos/synchronizer/steps/sync_olt_device.py
new file mode 100644
index 0000000..591f7f9
--- /dev/null
+++ b/xos/synchronizer/steps/sync_olt_device.py
@@ -0,0 +1,182 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
+
+import json
+from synchronizers.new_base.SyncInstanceUsingAnsible import SyncStep
+from synchronizers.new_base.modelaccessor import OLTDevice
+
+from xosconfig import Config
+from multistructlog import create_logger
+from time import sleep
+import requests
+from requests.auth import HTTPBasicAuth
+
+log = create_logger(Config().get('logging'))
+
+class SyncOLTDevice(SyncStep):
+    provides = [OLTDevice]
+
+    observes = OLTDevice
+
+    @staticmethod
+    def format_url(url):
+        if 'http' in url:
+            return url
+        else:
+            return 'http://%s' % url
+
+    @staticmethod
+    def get_voltha_info(o):
+        return {
+            'url': SyncOLTDevice.format_url(o.volt_service.voltha_url),
+            'user': o.volt_service.voltha_user,
+            'pass': o.volt_service.voltha_pass
+        }
+
+    @staticmethod
+    def get_p_onos_info(o):
+        return {
+            'url': SyncOLTDevice.format_url(o.volt_service.p_onos_url),
+            'user': o.volt_service.p_onos_user,
+            'pass': o.volt_service.p_onos_pass
+        }
+
+    @staticmethod
+    def get_of_id_from_device(o):
+        voltha_url = SyncOLTDevice.get_voltha_info(o)['url']
+
+        r = requests.get(voltha_url + "/api/v1/logical_devices")
+
+        if r.status_code != 200:
+            raise Exception("Failed to retrieve logical devices from VOLTHA: %s" % r.text)
+
+        res = r.json()
+
+        for ld in res["items"]:
+            if ld["root_device_id"] == o.device_id:
+                return ld["id"]
+        raise Exception("Can't find a logical device for device id: %s" % o.device_id)
+
+
+    def sync_record(self, o):
+        log.info("sync'ing device", object=str(o), **o.tologdict())
+
+        voltha_url = self.get_voltha_info(o)['url']
+
+        data = {
+            "type": o.device_type,
+            "host_and_port": "%s:%s" % (o.host, o.port)
+        }
+
+        if o.device_type == 'simulated_olt':
+            # simulated devices won't accept host and port, for testing only
+            data.pop('host_and_port')
+            data['mac_address'] = "00:0c:e2:31:40:00"
+
+        log.info("pushing olt to voltha", data=data)
+
+        r = requests.post(voltha_url + "/api/v1/devices", json=data)
+
+        if r.status_code != 200:
+            raise Exception("Failed to add device: %s" % r.text)
+
+        log.info("add device response", text=r.text)
+
+        res = r.json()
+
+        print log.info("add device json res", res=res)
+
+        if not res['id']:
+            raise Exception('VOLTHA Device Id is empty, this probably means that the device is already provisioned in VOLTHA')
+        else:
+            o.device_id = res['id'];
+
+        # enable device
+
+        r = requests.post(voltha_url + "/api/v1/devices/" + o.device_id + "/enable")
+
+        if r.status_code != 200:
+            raise Exception("Failed to enable device: %s" % r.text)
+
+        # read state
+        r = requests.get(voltha_url + "/api/v1/devices/" + o.device_id).json()
+        while r['oper_status'] == "ACTIVATING":
+            log.info("Waiting for device %s (%s) to activate" % (o.name, o.device_id))
+            sleep(5)
+            r = requests.get(voltha_url + "/api/v1/devices/" + o.device_id).json()
+
+        o.admin_state = r['admin_state']
+        o.oper_status = r['oper_status']
+
+        # find of_id of device
+        o.of_id = self.get_of_id_from_device(o)
+        o.save()
+
+        # add device info to P-ONOS
+        data = {
+          "devices": {
+            o.of_id: {
+              "basic": {
+                "driver": o.driver
+              },
+              "accessDevice": {
+                "uplink": o.uplink,
+                "vlan": o.vlan
+              }
+            }
+          }
+        }
+
+        onos= self.get_p_onos_info(o)
+
+        r = requests.post(onos['url'] + '/onos/v1/network/configuration/', data=json.dumps(data), auth=HTTPBasicAuth(onos['user'], onos['pass']))
+
+        if r.status_code != 200:
+            log.error(r.text)
+            raise Exception("Failed to add device %s into ONOS" % o.name)
+        else:
+            try:
+                print r.json()
+            except Exception:
+                print r.text
+
+    def delete_record(self, o):
+
+        voltha_url = self.get_voltha_info(o)['url']
+        onos = self.get_p_onos_info(o)
+        if not o.device_id:
+            log.error("Device %s has no device_id" % o.name)
+
+        else:
+
+            # remove the device from ONOS
+            r = requests.delete(onos['url'] + '/onos/v1/network/configuration/devices/' + o.of_id, auth=HTTPBasicAuth(onos['user'], onos['pass']))
+
+            if r.status_code != 200:
+                log.error("Failed to remove device from ONOS: %s - %s" % (o.name, o.of_id), rest_responese=r.text, rest_status_code=r.status_code)
+                raise Exception("Failed to remove device in ONOS")
+
+            # disable the device
+            r = requests.post(voltha_url + "/api/v1/devices/" + o.device_id + "/disable")
+
+            if r.status_code != 200:
+                log.error("Failed to disable device in VOLTHA: %s - %s" % (o.name, o.device_id), rest_responese=r.text, rest_status_code=r.status_code)
+                raise Exception("Failed to disable device in VOLTHA")
+
+            # delete the device
+            r = requests.delete(voltha_url + "/api/v1/devices/" + o.device_id + "/delete")
+
+            if r.status_code != 200:
+                log.error("Failed to delete device in VOLTHA: %s - %s" % (o.name, o.device_id), rest_responese=r.text, rest_status_code=r.status_code)
+                raise Exception("Failed to delete device in VOLTHA")