Nokia: Putting in support for metro network services within XOS for E-CORD
Change-Id: Idbc7e09ca53b0d9705d24bf1730fd9b05347a241
diff --git a/xos/admin.py b/xos/admin.py
new file mode 100644
index 0000000..f1fdddb
--- /dev/null
+++ b/xos/admin.py
@@ -0,0 +1,19 @@
+# admin.py - MetroNetworkService Django Admin
+
+from core.admin import ReadOnlyAwareAdmin
+from django.contrib import admin
+from services.metronetwork.models import *
+
+
+class MetroServiceAdmin(ReadOnlyAwareAdmin):
+ model = MetroNetworkService
+ verbose_name = "MetroNetwork Service"
+ verbose_name_plural = "MetroNetwork Services"
+ list_display = ("name", "administrativeState")
+ list_display_links = ('name',)
+ fieldsets = [(None, {
+ 'fields': ['name', 'administrativeState', 'description'],
+ 'classes': ['suit-tab suit-tab-general']})]
+
+
+admin.site.register(MetroNetworkService, MetroServiceAdmin)
diff --git a/xos/api/service/metronetworkservice.py b/xos/api/service/metronetworkservice.py
new file mode 100644
index 0000000..0a80034
--- /dev/null
+++ b/xos/api/service/metronetworkservice.py
@@ -0,0 +1,187 @@
+from rest_framework.response import Response
+from rest_framework import serializers, filters, status
+from api.xosapi_helpers import PlusModelSerializer, XOSViewSet, ReadOnlyField
+from services.metronetwork.models import MetroNetworkService
+from core.models.netw import NetworkEdgePort, NetworkEdgeToEdgePointConnection
+from django.core.exceptions import ObjectDoesNotExist
+from django.core import serializers as jsonserializer
+
+class MetroNetworkServiceSerializer(PlusModelSerializer):
+ id = ReadOnlyField()
+ humanReadableName = serializers.SerializerMethodField("getHumanReadableName")
+
+ class Meta:
+ model = MetroNetworkService
+ fields = ('humanReadableName',
+ 'id',
+ 'restUrl',
+ 'administrativeState',
+ 'operationalState')
+
+ def getHumanReadableName(self, obj):
+ return obj.__unicode__()
+
+class MetroNetworkServiceViewSet(XOSViewSet):
+ base_name = "metronetworkservice"
+ method_name = "metronetworkservice/metronetwork"
+ method_kind = "viewset"
+ queryset = MetroNetworkService.get_service_objects().all()
+ serializer_class = MetroNetworkServiceSerializer
+
+ @classmethod
+ def get_urlpatterns(self, api_path="^"):
+ patterns = super(MetroNetworkServiceViewSet, self).get_urlpatterns(api_path=api_path)
+
+ return patterns
+
+ def list(self, request):
+ object_list = self.filter_queryset(self.get_queryset())
+
+ serializer = self.get_serializer(object_list, many=True)
+
+ return Response(serializer.data)
+
+
+class NetworkEdgePortSerializer(PlusModelSerializer):
+ id = ReadOnlyField()
+ humanReadableName = serializers.SerializerMethodField("getHumanReadableName")
+
+ class Meta:
+ model = NetworkEdgePort
+ fields = ('humanReadableName',
+ 'pid',
+ 'id',
+ 'element',
+ 'bwpCfgCbs',
+ 'bwpCfgEbs',
+ 'bwpCfgCir',
+ 'bwpCfgEir',
+ 'name',
+ 'location',
+ 'latlng')
+
+
+ def getHumanReadableName(self, obj):
+ return obj.id
+
+class NetworkEdgePortViewSet(XOSViewSet):
+ base_name = "SCA_ETH_FPP_UNI_N"
+ method_name = "metronetworkservice/SCA_ETH_FPP_UNI_N"
+ method_kind = "viewset"
+ queryset = NetworkEdgePort.objects.all()
+ serializer_class = NetworkEdgePortSerializer
+
+ @classmethod
+ def get_urlpatterns(self, api_path="^"):
+ patterns = super(NetworkEdgePortViewSet, self).get_urlpatterns(api_path=api_path)
+
+ return patterns
+
+ def list(self, request):
+ object_list = self.filter_queryset(self.get_queryset())
+
+ serializer = self.get_serializer(object_list, many=True)
+
+ return Response(serializer.data)
+
+class NetworkEdgeToEdgePointConnectionSerializer(PlusModelSerializer):
+ humanReadableName = serializers.SerializerMethodField("getHumanReadableName")
+ uni1 = NetworkEdgePortSerializer(required=True, read_only=False)
+ uni2 = NetworkEdgePortSerializer(required=True, read_only=False)
+
+ class Meta:
+ model = NetworkEdgeToEdgePointConnection
+
+ fields = ('humanReadableName',
+ 'sid',
+ 'id',
+ 'type',
+ 'uni1',
+ 'uni2',
+ 'operstate',
+ 'adminstate'
+ )
+
+ def getHumanReadableName(self, obj):
+ return obj.id
+
+class NetworkEdgeToEdgePointConnectionViewSet(XOSViewSet):
+ base_name = "SCA_ETH_FDFr_EC"
+ method_name = "metronetworkservice/SCA_ETH_FDFr_EC"
+ method_kind = "viewset"
+ queryset = NetworkEdgeToEdgePointConnection.objects.all()
+ serializer_class = NetworkEdgeToEdgePointConnectionSerializer
+
+ @classmethod
+ def get_urlpatterns(self, api_path="^"):
+ patterns = super(NetworkEdgeToEdgePointConnectionViewSet, self).get_urlpatterns(api_path=api_path)
+
+ return patterns
+
+ def list(self, request):
+
+ object_list = self.filter_queryset(self.get_queryset())
+
+ serializer = self.get_serializer(object_list, many=True)
+
+ return Response(serializer.data)
+
+ def destroy(self, request, pk=None):
+ ELineConnectionToDelete = NetworkEdgeToEdgePointConnection.objects.get(pk=pk)
+
+ if (ELineConnectionToDelete):
+ ELineConnectionToDelete.adminstate = 'deactivationrequested'
+ ELineConnectionToDelete.save()
+ else:
+ return Response(status=status.HTTP_400_BAD_REQUEST)
+
+ return Response(status=status.HTTP_200_OK)
+
+
+ def create(self, validated_data):
+
+ ELineConnection = NetworkEdgeToEdgePointConnection()
+ ELineConnection.sid = validated_data.data.get('sid')
+ ELineConnection.adminstate = validated_data.data.get('adminstate')
+ ELineConnection.operstate = validated_data.data.get('operstate')
+ ELineConnection.type = validated_data.data.get('type')
+
+ uni1 = validated_data.data.get('uni1')
+ uni2 = validated_data.data.get('uni2')
+
+ uni1 = NetworkEdgePort.objects.get(pk=uni1['id'])
+ uni2 = NetworkEdgePort.objects.get(pk=uni2['id'])
+
+ ELineConnection.uni1 = uni1
+ ELineConnection.uni2 = uni2
+ ELineConnection.save()
+
+ response_data = {}
+ response_data['sid'] = ELineConnection.sid
+ response_data['adminstate'] = ELineConnection.adminstate
+ response_data['operstate'] = ELineConnection.operstate
+ response_data['type'] = ELineConnection.type
+
+ response_data['uni1'] = {}
+ response_data['uni1']['id'] = uni1.id
+ response_data['uni1']['pid'] = uni1.pid
+ response_data['uni1']['bwpCfgCbs'] = uni1.bwpCfgCbs
+ response_data['uni1']['bwpCfgEbs'] = uni1.bwpCfgEbs
+ response_data['uni1']['bwpCfgCir'] = uni1.bwpCfgCir
+ response_data['uni1']['bwpCfgEir'] = uni1.bwpCfgEir
+ response_data['uni1']['name'] = uni1.name
+ response_data['uni1']['location'] = uni1.location
+ response_data['uni1']['latlng'] = uni1.latlng
+
+ response_data['uni2'] = {}
+ response_data['uni2']['id'] = uni2.id
+ response_data['uni2']['pid'] = uni2.pid
+ response_data['uni2']['bwpCfgCbs'] = uni2.bwpCfgCbs
+ response_data['uni2']['bwpCfgEbs'] = uni2.bwpCfgEbs
+ response_data['uni2']['bwpCfgCir'] = uni2.bwpCfgCir
+ response_data['uni2']['bwpCfgEir'] = uni2.bwpCfgEir
+ response_data['uni2']['name'] = uni1.name
+ response_data['uni2']['location'] = uni1.location
+ response_data['uni2']['latlng'] = uni1.latlng
+
+ return Response(response_data)
\ No newline at end of file
diff --git a/xos/make_synchronizer_manifest.sh b/xos/make_synchronizer_manifest.sh
new file mode 100755
index 0000000..4058982
--- /dev/null
+++ b/xos/make_synchronizer_manifest.sh
@@ -0,0 +1,2 @@
+#! /bin/bash
+find synchronizer -type f | cut -b 14- > synchronizer/manifest
diff --git a/xos/metronetworkservice-onboard.yaml b/xos/metronetworkservice-onboard.yaml
new file mode 100644
index 0000000..b8a966d
--- /dev/null
+++ b/xos/metronetworkservice-onboard.yaml
@@ -0,0 +1,20 @@
+tosca_definitions_version: tosca_simple_yaml_1_0
+
+description: Onboard the metronetwork service
+
+imports:
+ - custom_types/xos.yaml
+
+topology_template:
+ node_templates:
+ metronetwork:
+ type: tosca.nodes.ServiceController
+ properties:
+ base_url: file:///opt/xos_services/metro-net/xos/
+ # The following will concatenate with base_url automatically, if
+ # base_url is non-null.
+ models: models.py
+ admin: admin.py
+ rest_service: api/service/metronetworkservice.py
+ synchronizer: synchronizer/manifest
+ synchronizer_run: metronetworkervice-synchronizer.py
\ No newline at end of file
diff --git a/xos/models.py b/xos/models.py
new file mode 100644
index 0000000..2c68fab
--- /dev/null
+++ b/xos/models.py
@@ -0,0 +1,56 @@
+# models.py - Metro Network Service
+
+from django.db import models
+from core.models import Service
+
+METRONETWORK_KIND = "metronetwork"
+SERVICE_NAME = 'metronetwork'
+SERVICE_NAME_VERBOSE = 'Metro Network Service'
+
+class MetroNetworkService(Service):
+
+ KIND = METRONETWORK_KIND
+
+ class Meta:
+ app_label = SERVICE_NAME
+ verbose_name = SERVICE_NAME_VERBOSE
+
+ ADMINISTRATIVE_STATE = (
+ ('enabled', 'Enabled'),
+ ('disabled', 'Disabled')
+ )
+
+ OPERATIONALSTATE = (
+ ('active', 'Active'),
+ ('inactive', 'Inactive')
+ )
+
+ restUrl = models.CharField(verbose_name="Rest URL",
+ max_length=256,
+ editable=True)
+
+ administrativeState = models.CharField(choices=ADMINISTRATIVE_STATE,
+ default='disabled',
+ verbose_name="AdministrativeState",
+ max_length=16,
+ editable=True)
+
+ operationalState = models.CharField(choices=OPERATIONALSTATE,
+ verbose_name="OperationalState",
+ max_length=256,
+ editable=True)
+
+ def __init__(self, *args, **kwargs):
+ super(MetroNetworkService, self).__init__(*args, **kwargs)
+
+ def getAdminstrativeState(self):
+ return self.administrativeState
+
+ def setAdminstrativeState(self, value):
+ self.administrativeState = value
+
+ def getOperationalState(self):
+ return self.operationalState
+
+ def getRestUrl(self):
+ return self.restUrl
\ No newline at end of file
diff --git a/xos/synchronizer/__init__.py b/xos/synchronizer/__init__.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/xos/synchronizer/__init__.py
@@ -0,0 +1 @@
+
diff --git a/xos/synchronizer/manifest b/xos/synchronizer/manifest
new file mode 100644
index 0000000..3f33fbc
--- /dev/null
+++ b/xos/synchronizer/manifest
@@ -0,0 +1,14 @@
+metronetwork-synchronizer.py
+__init__.py
+model-deps
+providers/metronetworktestprovider.py
+providers/metronetworkrestprovider.py
+providers/providerfactory.py
+providers/__init__.py
+providers/metronetworkprovider.py
+run_devel.sh
+metronetwork-synchronizer-devel.py
+manifest
+steps/sync_metronetworkservice.py
+run.sh
+metronetwork_synchronizer_config
diff --git a/xos/synchronizer/metronetwork-synchronizer-devel.py b/xos/synchronizer/metronetwork-synchronizer-devel.py
new file mode 100755
index 0000000..df697ec
--- /dev/null
+++ b/xos/synchronizer/metronetwork-synchronizer-devel.py
@@ -0,0 +1,13 @@
+#!/usr/bin/env python
+
+# This imports and runs ../../xos-observer.py
+
+import importlib
+import os
+import sys
+
+#observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), "../../synchronizers/base")
+sys.path.append("/opt/xos/synchronizers/base")
+print sys.path
+mod = importlib.import_module("xos-synchronizer")
+mod.main()
diff --git a/xos/synchronizer/metronetwork-synchronizer.py b/xos/synchronizer/metronetwork-synchronizer.py
new file mode 100755
index 0000000..64d0b08
--- /dev/null
+++ b/xos/synchronizer/metronetwork-synchronizer.py
@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+
+# This imports and runs ../../xos-observer.py
+
+import importlib
+import os
+import sys
+
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), "../../synchronizers/base")
+sys.path.append(observer_path)
+mod = importlib.import_module("xos-synchronizer")
+mod.main()
diff --git a/xos/synchronizer/metronetwork_synchronizer_config b/xos/synchronizer/metronetwork_synchronizer_config
new file mode 100644
index 0000000..86847b9
--- /dev/null
+++ b/xos/synchronizer/metronetwork_synchronizer_config
@@ -0,0 +1,38 @@
+
+[plc]
+name=plc
+deployment=VICCI
+
+[db]
+name=xos
+user=postgres
+password=password
+host=localhost
+port=5432
+
+[api]
+host=128.112.171.237
+port=8000
+ssl_key=None
+ssl_cert=None
+ca_ssl_cert=None
+ratelimit_enabled=0
+omf_enabled=0
+mail_support_address=support@localhost
+nova_enabled=True
+
+[observer]
+name=metronetwork
+dependency_graph=/opt/xos/synchronizers/metronetwork/model-deps
+steps_dir=/opt/xos/synchronizers/metronetwork/steps
+sys_dir=/opt/xos/synchronizers/metronetwork/sys
+deleters_dir=/opt/xos/synchronizers/metronetwork/deleters
+log_file=console
+driver=None
+pretend=False
+backoff_disabled=True
+fofum_disabled=True
+
+[feefie]
+client_id='vicci_dev_central'
+user_id='pl'
diff --git a/xos/synchronizer/model-deps b/xos/synchronizer/model-deps
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/xos/synchronizer/model-deps
@@ -0,0 +1 @@
+{}
diff --git a/xos/synchronizer/providers/__init__.py b/xos/synchronizer/providers/__init__.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/xos/synchronizer/providers/__init__.py
@@ -0,0 +1 @@
+
diff --git a/xos/synchronizer/providers/metronetworkprovider.py b/xos/synchronizer/providers/metronetworkprovider.py
new file mode 100644
index 0000000..db651c3
--- /dev/null
+++ b/xos/synchronizer/providers/metronetworkprovider.py
@@ -0,0 +1,95 @@
+from xos.logger import Logger, logging
+from core.models.netw import *
+
+logger = Logger(level=logging.INFO)
+
+
+class MetroNetworkProvider(object):
+ networkdevice = None
+
+ def __init__(self, networkdevice, **args):
+ self.networkdevice = networkdevice
+ pass
+
+ # Methods to support for Synchronization - effectively list all interfaces
+ #
+ # Method for retrieving all network ports from the backend system
+ # Intended for use when doing a re-sync
+ def get_network_ports(self):
+ # Default method needs to be overriden
+ logger.debug("get_network_ports default called - should be overriden")
+
+ # Method for getting a list of network ports to delete
+ # The default imnplementation just gets a list from the local DB
+ # Intended for use when doing a re-sync
+ def get_network_ports_for_deletion(self):
+ # Default method needs to be overriden
+ logger.debug("get_network_ports for deletion called - default is all ports in the db related to this id")
+ objs = []
+ # ports = NetworkPort.objects.filter(networkdevice=self.networkdevice.id)
+ ports = NetworkPort.objects.all()
+ for port in ports:
+ objs.append(port)
+
+ return objs
+
+ # Method for retrieving all network links from the backend system
+ # Includes Connectivity Objects
+ # Intended for use when doing a re-sync
+ def get_network_links(self):
+ # Default method needs to be overriden
+ logger.debug("get_network_links default called - should be overriden")
+ objs = []
+ return objs
+
+ # Method for getting a list of network links to delete
+ # Includes Connectivity Objects
+ # Intended for use when doing a re-sync
+ def get_network_links_for_deletion(self):
+ # Default method needs to be overriden
+ logger.debug("get_network_links for deletion called - should be overidden")
+ objs = []
+ return objs
+
+ # Methods to support Event Management - movement of changes from the Domain to XOS
+ #
+ # Method for Create and Update - Create and Update are together given the base design
+ def get_updated_or_created_objects(self):
+ # Default method needs to be overriden
+ logger.debug("get_updated_or_created_objects default called - should be overriden")
+ objs = []
+ return objs
+
+ # Method for Delete - Create and Update are together given the base design
+ def get_deleted_objects(self):
+ # Default method needs to be overriden
+ logger.debug("get_deleted_objects default called - should be overriden")
+ objs = []
+ return objs
+
+ # Methods to support Movement of changes from XOS into the Domain
+ #
+ # Method for creating point to point connectivity object
+ #
+ # obj - Connection object - with all configuration variables set
+ # returns - Boolean - indicating whether or not the request succeeded - in either case the Admin/Oper
+ # states are assigned - if False the backend_status field
+ # should be assigned with the appropriate error code - in the case of True the
+ # backend_status will be assigned by the system and should be unassigned
+
+ def create_point_to_point_connectivity(self, obj):
+ # Default method needs to be overriden
+ logger.debug("create_point_to_point_connectivity called - should be overriden")
+ return False
+
+ # Method for deleting point to point connectivity object
+ #
+ # obj - Connection object
+ # returns - Boolean - indicating whether or not the request succeeded - in either case the Admin/Oper
+ # states are assigned - if False the backend_status field
+ # should be assigned with the appropriate error code - in the case of True the
+ # backend_status will be assigned by the system and should be unassigned
+ def delete_point_to_point_connectivity(self, obj):
+ # Default method needs to be overriden
+ logger.debug("delete_point_to_point_connectivity called - should be overriden")
+ return False
diff --git a/xos/synchronizer/providers/metronetworkrestprovider.py b/xos/synchronizer/providers/metronetworkrestprovider.py
new file mode 100644
index 0000000..fa9ef71
--- /dev/null
+++ b/xos/synchronizer/providers/metronetworkrestprovider.py
@@ -0,0 +1,232 @@
+from xos.logger import Logger, logging
+from core.models.netw import *
+from synchronizers.metronetwork.providers.metronetworkprovider import MetroNetworkProvider
+
+import requests, json
+from requests.auth import HTTPBasicAuth
+
+logger = Logger(level=logging.INFO)
+
+
+class MetroNetworkRestProvider(MetroNetworkProvider):
+ def __init__(self, networkdevice, **args):
+ MetroNetworkProvider.__init__(self, networkdevice, **args)
+
+ def get_network_ports(self):
+
+ objs = []
+
+ restCtrlUrl = self.networkdevice.restCtrlUrl
+ username = self.networkdevice.username
+ password = self.networkdevice.password
+
+ resp = requests.get("{}/mef-sca-api/SCA_ETH_FPP_UNI_N".format(restCtrlUrl),
+ auth=HTTPBasicAuth(username, password))
+
+ if resp.status_code == 200:
+ for uni in resp.json():
+ hostname = uni['transportPort']['Hostname']
+ port = uni['transportPort']['Port']
+
+ # Default values
+ bwpCfgCbs = 0
+ bwpCfgEbs = 0
+ bwpCfgCir = 0
+ bwpCfgEir = 0
+
+ if 'interfaceCfgIngressBwp' in uni:
+ bwpCfgCbs = uni['interfaceCfgIngressBwp']['bwpCfgCbs']
+ bwpCfgEbs = uni['interfaceCfgIngressBwp']['bwpCfgEbs']
+ bwpCfgCir = uni['interfaceCfgIngressBwp']['bwpCfgCir']
+ bwpCfgEir = uni['interfaceCfgIngressBwp']['bwpCfgEir']
+
+ uniPort = NetworkEdgePort()
+ uniPort.element = self.networkdevice
+ uniPort.pid = "{}.{}/{}".format(self.networkdevice.id, hostname, port)
+ uniPort.bwpCfgCbs = bwpCfgCbs
+ uniPort.bwpCfgEbs = bwpCfgEbs
+ uniPort.bwpCfgCir = bwpCfgCir
+ uniPort.bwpCfgEir = bwpCfgEir
+
+ objs.append(uniPort)
+
+ return objs
+
+ else:
+ raise Exception("OnosApiError: get_network_ports()")
+
+ def get_network_links(self):
+
+ objs = []
+
+ restCtrlUrl = self.networkdevice.restCtrlUrl
+ username = self.networkdevice.username
+ password = self.networkdevice.password
+
+ resp = requests.get("{}/mef-sca-api/SCA_ETH_FDFr_EC/findByState?state=Active".format(restCtrlUrl),
+ auth=HTTPBasicAuth(username, password))
+
+ if resp.status_code == 200:
+ for evc in resp.json():
+ id = evc['id']
+ evcServiceType = evc['evcServiceType']
+
+ if (evcServiceType == "Point_To_Point"):
+ uni1 = evc['SCA_ETH_Flow_Points'][0]
+ hostname = uni1['scaEthFppUniN']['transportPort']['Hostname']
+ port = uni1['scaEthFppUniN']['transportPort']['Port']
+
+ if 'interfaceCfgIngressBwp' in uni1['scaEthFppUniN']:
+ bwpCfgCbs = uni1['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgCbs']
+ bwpCfgEbs = uni1['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgEbs']
+ bwpCfgCir = uni1['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgCir']
+ bwpCfgEir = uni1['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgEir']
+
+ edgePort1 = NetworkEdgePort()
+ edgePort1.element = self.networkdevice
+ edgePort1.pid = "{}.{}/{}".format(self.networkdevice.id, hostname, port)
+ edgePort1.bwpCfgCbs = bwpCfgCbs
+ edgePort1.bwpCfgEbs = bwpCfgEbs
+ edgePort1.bwpCfgCir = bwpCfgCir
+ edgePort1.bwpCfgEir = bwpCfgEir
+
+ uni2 = evc['SCA_ETH_Flow_Points'][1]
+ hostname = uni2['scaEthFppUniN']['transportPort']['Hostname']
+ port = uni2['scaEthFppUniN']['transportPort']['Port']
+
+ if 'interfaceCfgIngressBwp' in uni1['scaEthFppUniN']:
+ bwpCfgCbs = uni2['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgCbs']
+ bwpCfgEbs = uni2['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgEbs']
+ bwpCfgCir = uni2['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgCir']
+ bwpCfgEir = uni2['scaEthFppUniN']['interfaceCfgIngressBwp']['bwpCfgEir']
+
+ edgePort2 = NetworkEdgePort()
+ edgePort2.element = self.networkdevice
+ edgePort2.pid = "{}.{}/{}".format(self.networkdevice.id, hostname, port)
+ edgePort2.bwpCfgCbs = bwpCfgCbs
+ edgePort2.bwpCfgEbs = bwpCfgEbs
+ edgePort2.bwpCfgCir = bwpCfgCir
+ edgePort2.bwpCfgEir = bwpCfgEir
+
+ edgeToEdgeConnectivity = NetworkEdgeToEdgePointConnection()
+ edgeToEdgeConnectivity.sid = id
+ edgeToEdgeConnectivity.type = evcServiceType
+ edgeToEdgeConnectivity.uni1 = edgePort1
+ edgeToEdgeConnectivity.uni2 = edgePort2
+ edgeToEdgeConnectivity.operstate = "active"
+ edgeToEdgeConnectivity.adminstate = "enabled"
+
+ objs.append(edgeToEdgeConnectivity)
+
+ return objs
+
+ else:
+ raise Exception("OnosApiError: get_network_links()")
+
+ def create_point_to_point_connectivity(self, obj):
+
+ restCtrlUrl = self.networkdevice.restCtrlUrl
+ username = self.networkdevice.username
+ password = self.networkdevice.password
+
+ evcServiceType = obj.type
+ # evcServiceType = "Point_To_Point"
+
+ uni1 = obj.uni1
+ uni1Id = uni1.pid
+ uni1IdToken = (uni1Id.split('.', 1))[1].split('/', 1)
+ uni1Hostname = uni1IdToken[0]
+ uni1Port = uni1IdToken[1]
+ uni1BwpCfgCbs = uni1.bwpCfgCbs
+ uni1BwpCfgEbs = uni1.bwpCfgEbs
+ uni1BwpCfgCir = uni1.bwpCfgCir
+ uni1BwpCfgEir = uni1.bwpCfgEir
+
+ uni2 = obj.uni2
+ uni2Id = uni2.pid
+ uni2IdToken = (uni2Id.split('.', 1))[1].split('/', 1)
+ uni2Hostname = uni2IdToken[0]
+ uni2Port = uni2IdToken[1]
+ uni2BwpCfgCbs = uni2.bwpCfgCbs
+ uni2BwpCfgEbs = uni2.bwpCfgEbs
+ uni2BwpCfgCir = uni2.bwpCfgCir
+ uni2BwpCfgEir = uni2.bwpCfgEir
+
+ data = {
+ "evcServiceType": evcServiceType,
+ "SCA_ETH_Flow_Points": [
+ {
+ "scaEthFppUniN": {"transportPort": {"Hostname": uni1Hostname, "Port": uni1Port},
+ "interfaceCfgIngressBwp": {"bwpCfgCbs": uni1BwpCfgCbs,
+ "bwpCfgEbs": uni1BwpCfgEbs,
+ "bwpCfgCir": uni1BwpCfgCir,
+ "bwpCfgEir": uni1BwpCfgEir}}},
+ {
+ "scaEthFppUniN": {"transportPort": {"Hostname": uni2Hostname, "Port": uni2Port},
+ "interfaceCfgIngressBwp": {"bwpCfgCbs": uni2BwpCfgCbs,
+ "bwpCfgEbs": uni2BwpCfgEbs,
+ "bwpCfgCir": uni2BwpCfgCir,
+ "bwpCfgEir": uni2BwpCfgEir}}}]
+ }
+
+ headers = {'Content-Type': 'application/json'}
+
+ resp = requests.post('{}/mef-sca-api/SCA_ETH_FDFr_EC'.format(restCtrlUrl),
+ data=json.dumps(data), headers=headers, auth=HTTPBasicAuth(username, password))
+
+ if resp.status_code == 201:
+ result = resp.json()
+ message = result['message']
+
+ msg_token = message.split()
+ for i, token in enumerate(msg_token):
+ if token == 'id':
+ service_id = msg_token[i + 1]
+ obj.sid = service_id
+ obj.adminstate = "enabled"
+ obj.operstate = "active"
+
+ return True
+
+ elif resp.status_code == 204:
+ obj.adminstate = "invalid" # what's the meaning?
+ obj.operstate = "inactive"
+ obj.backend_status = '204 - No network resource'
+ return False
+
+ elif resp.status_code == 500:
+ obj.adminstate = "enabled"
+ obj.operstate = "inactive"
+ obj.backend_status = '500 - Internal Server Error'
+ return False
+
+ else:
+ raise Exception("OnosApiError: create_point_to_point_connectivity()")
+
+ def delete_point_to_point_connectivity(self, obj):
+
+ restCtrlUrl = self.networkdevice.restCtrlUrl
+ username = self.networkdevice.username
+ password = self.networkdevice.password
+ evcId = obj.sid
+
+ resp = requests.delete("{}/mef-sca-api/SCA_ETH_FDFr_EC/{}".format(restCtrlUrl, evcId),
+ auth=HTTPBasicAuth(username, password))
+
+ if resp.status_code == 200:
+ obj.adminstate = 'disabled'
+ obj.operstate = 'inactive'
+ return True
+
+ elif resp.status_code == 204:
+ obj.adminstate = "invalid" # what's the meaning?
+ obj.backend_status = '204 - No such network resource: {}'.format(evcId)
+ return False
+
+ elif resp.status_code == 500:
+ obj.adminstate = "disabled"
+ obj.backend_status = '500 - Internal Server Error'
+ return False
+
+ else:
+ raise Exception("OnosApiError: delete_point_to_point_connectivity()")
diff --git a/xos/synchronizer/providers/metronetworktestprovider.py b/xos/synchronizer/providers/metronetworktestprovider.py
new file mode 100644
index 0000000..b88427d
--- /dev/null
+++ b/xos/synchronizer/providers/metronetworktestprovider.py
@@ -0,0 +1,284 @@
+import random
+
+from xos.logger import Logger, logging
+from core.models.netw import *
+from synchronizers.metronetwork.providers.metronetworkprovider import MetroNetworkProvider
+
+logger = Logger(level=logging.INFO)
+
+
+class MetroNetworkTestProvider(MetroNetworkProvider):
+ def __init__(self, networkdevice, **args):
+ MetroNetworkProvider.__init__(self, networkdevice, **args)
+
+ # Method for retrieving all network ports from the backend system
+ def get_network_ports(self):
+ # Our Test Network Consists of 6 ports - two on each of three internal switches
+
+ objs = []
+
+ # For The Test Provider we don't handle re-sync for anything but the Metro Test Network
+ if self.networkdevice.id != 'TestMetroNet':
+ return objs
+
+ # Ok - in the test class we cheat and create the adjunct NetworkDevices Devices
+ device1 = NetworkDevice()
+ device1.id = 'TestCORD1Net'
+ device1.administrativeState = 'enabled'
+ device1.restCtrlUrl = 'testCordPod1.onlab.net:8000'
+ device1.username = 'karaf'
+ device1.password = 'karaf'
+ objs.append(device1)
+
+ device2 = NetworkDevice()
+ device2.id = 'TestCORD2Net'
+ device2.administrativeState = 'enabled'
+ device2.restCtrlUrl = 'testCordPod2.onlabl.net:8000'
+ device2.username = 'karaf'
+ device2.password = 'karaf'
+ objs.append(device2)
+
+ # Ok - here we go creating ports - its 4 ports for each CORD Pod and 2 for MetroNetwork
+
+ # Metro Network Switch
+ port1 = NetworkPort()
+ port1.element = self.networkdevice
+ port1.pid = self.networkdevice.id + "." + "of:000000001/1"
+ objs.append(port1)
+
+ port2 = NetworkPort()
+ port2.element = self.networkdevice
+ port2.pid = self.networkdevice.id + "." + "of:000000001/2"
+ objs.append(port2)
+
+ # CORD POD1
+ cordpod1device = NetworkDevice()
+ cordpod1device.id = 'TestCORD1Net'
+
+ port3 = NetworkEdgePort()
+ port3.element = cordpod1device
+ port3.pid = cordpod1device.id + "." + "of:000000001/1"
+ port3.bwpCfgCbs = 1000000
+ port3.bwpCfgEbs = 1000000
+ port3.bwpCfgEir = 1000000
+ port3.bwpCfgCir = 1000000
+ port3.bwpCfgCir = 1000000
+ objs.append(port3)
+
+ port4 = NetworkPort()
+ port4.element = cordpod1device
+ port4.pid = cordpod1device.id + "." + "of:000000001/2"
+ objs.append(port4)
+
+ # Internal Switch 3
+ port5 = NetworkEdgePort()
+ port5.element = cordpod1device
+ port5.pid = cordpod1device.id + "." + "of:000000001/3"
+ port5.bwpCfgCbs = 1000000
+ port5.bwpCfgEbs = 1000000
+ port5.bwpCfgEir = 1000000
+ port5.bwpCfgCir = 1000000
+ port5.bwpCfgCir = 1000000
+ objs.append(port5)
+
+ port6 = NetworkPort()
+ port6.element = cordpod1device
+ port6.capacity = 1000000000
+ port6.usedCapacity = 1000000000
+ port6.pid = cordpod1device.id + "." + "of:000000001/4"
+ objs.append(port6)
+
+ # CORD POD2
+ cordpod2device = NetworkDevice()
+ cordpod2device.id = 'TestCORD2Net'
+
+ port7 = NetworkEdgePort()
+ port7.element = cordpod2device
+ port7.pid = cordpod2device.id + "." + "of:000000001/1"
+ port7.bwpCfgCbs = 1000000
+ port7.bwpCfgEbs = 1000000
+ port7.bwpCfgEir = 1000000
+ port7.bwpCfgCir = 1000000
+ port7.bwpCfgCir = 1000000
+ objs.append(port7)
+
+ port8 = NetworkPort()
+ port8.element = cordpod2device
+ port8.pid = cordpod2device.id + "." + "of:000000001/2"
+ objs.append(port8)
+
+ # Internal Switch 3
+ port9 = NetworkEdgePort()
+ port9.element = cordpod2device
+ port9.pid = cordpod2device.id + "." + "of:000000001/3"
+ port9.bwpCfgCbs = 1000000
+ port9.bwpCfgEbs = 1000000
+ port9.bwpCfgEir = 1000000
+ port9.bwpCfgCir = 1000000
+ port9.bwpCfgCir = 1000000
+ objs.append(port9)
+
+ port10 = NetworkPort()
+ port10.element = cordpod2device
+ port10.pid = cordpod2device.id + "." + "of:000000001/4"
+ objs.append(port10)
+
+ return objs
+
+ def get_network_ports_for_deletion(self):
+
+ objs = []
+
+ # For The Test Provider we don't handle re-sync for anything but the Metro Test Network
+ if self.networkdevice.id != 'TestMetroNet':
+ return objs
+
+ allports = MetroNetworkProvider.get_network_ports_for_deletion(self)
+
+ for port in allports:
+ objs.append(port)
+
+ # Ok - in the test class we cheat and take down the adjunct Fake NetworkDevices Devices
+ device1 = NetworkDevice()
+ device1.id = 'TestCORD1Net'
+ objs.append(device1)
+
+ device2 = NetworkDevice()
+ device2.id = 'TestCORD2Net'
+ objs.append(device2)
+
+ return objs
+
+ def get_network_links(self):
+
+ objs = []
+
+ # Metro Link Connectivity object - Point to Point
+ metronetconnectivity = NetworkPointToPointConnection()
+ port1 = NetworkPort()
+ port1.pid = self.networkdevice.id + "." + "of:000000001/1"
+ port2 = NetworkPort()
+ port2.pid = self.networkdevice.id + "." + "of:000000001/2"
+ metronetconnectivity.src = port1
+ metronetconnectivity.dest = port2
+ metronetconnectivity.type = 'direct'
+ metronetconnectivity.operstate = 'active'
+ metronetconnectivity.adminstate = 'enabled'
+ metronetconnectivity.sid = 'MetroNetworkPointToPointConnectivity_1'
+ objs.append(metronetconnectivity)
+
+ # CORDPOD1 Connectivity object - Point to Point
+ cordpod1device = NetworkDevice()
+ cordpod1device.id = 'TestCORD1Net'
+
+ cordpod1connectivity = NetworkPointToPointConnection()
+ port6 = NetworkPort()
+ port6.pid = cordpod1device.id + "." + "of:000000001/4"
+ port4 = NetworkPort()
+ port4.pid = cordpod1device.id + "." + "of:000000001/2"
+ cordpod1connectivity.src = port6
+ cordpod1connectivity.dest = port4
+ cordpod1connectivity.type = 'direct'
+ cordpod1connectivity.operstate = 'active'
+ cordpod1connectivity.adminstate = 'enabled'
+ cordpod1connectivity.sid = 'CordPod1PointToPointConnectivity_1'
+ objs.append(cordpod1connectivity)
+
+ # CORDPOD2 Connectivity object - Point to Point
+ cordpod2device = NetworkDevice()
+ cordpod2device.id = 'TestCORD2Net'
+
+ cordpod2connectivity = NetworkPointToPointConnection()
+ port8 = NetworkPort()
+ port8.pid = cordpod2device.id + "." + "of:000000001/2"
+ port10 = NetworkPort()
+ port10.pid = cordpod2device.id + "." + "of:000000001/4"
+ cordpod2connectivity.src = port10
+ cordpod2connectivity.dest = port8
+ cordpod2connectivity.type = 'direct'
+ cordpod2connectivity.operstate = 'active'
+ cordpod2connectivity.adminstate = 'enabled'
+ cordpod2connectivity.sid = 'CordPod2PointToPointConnectivity_1'
+ objs.append(cordpod2connectivity)
+
+ # InterLink object between CORDPOD1 and MetroNet
+ interlink1 = NetworkInterLink()
+ interlink1.src = port1
+ interlink1.dest = port6
+ interlink1.state = 'active'
+ objs.append(interlink1)
+
+ # InterLink object between CORDPOD2 and MetroNet
+ interlink2 = NetworkInterLink()
+ interlink2.src = port2
+ interlink2.dest = port10
+ interlink2.state = 'active'
+ objs.append(interlink2)
+
+ # Edge to Edge Point Connectivity Objects
+ edgetoedgeconnectivity = NetworkEdgeToEdgePointConnection()
+ port3 = NetworkEdgePort()
+ port3.pid = cordpod1device.id + "." + "of:000000001/1"
+ port7 = NetworkEdgePort()
+ port7.pid = cordpod2device.id + "." + "of:000000001/1"
+ edgetoedgeconnectivity.uni1 = port3
+ edgetoedgeconnectivity.uni2 = port7
+ edgetoedgeconnectivity.type = 'direct'
+ edgetoedgeconnectivity.operstate = 'active'
+ edgetoedgeconnectivity.adminstate = 'enabled'
+ edgetoedgeconnectivity.sid = 'EdgePointToEdgePointConnectivity_1'
+ objs.append(edgetoedgeconnectivity)
+
+ return objs
+
+ def get_network_links_for_deletion(self):
+
+ # For now we'll rely on cascade deletes in the port area - so from the test provider nothing to do
+ objs = []
+ return objs
+
+ def create_point_to_point_connectivity(self, obj):
+
+ # Ok - here is what we'll do to simulate the 'real world' - get a random number between 1 and 10
+ # 1-7 is considered 'successful' 8 is considered a transient error - 9 is a configuration problem
+ # 10 is a - resource exhausted problem - there you go!!
+ scenario = random.randint(1, 10)
+
+ if (scenario >= 1 and scenario <= 7):
+ obj.adminstate = 'enabled'
+ obj.operstate = 'active'
+ return True
+ elif (scenario == 8):
+ obj.adminstate = 'enabled'
+ obj.operstate = 'inactive'
+ obj.backend_status = '8 - Transient Server Error'
+ return False
+ elif (scenario == 9):
+ obj.adminstate = 'invalid'
+ obj.operstate = 'inactive'
+ obj.backend_status = '9 - Configuration Error'
+ return False
+ else:
+ obj.adminstate = 'enabled'
+ obj.operstate = 'inactive'
+ obj.backend_status = '10 - Resource Exhaustion'
+ return False
+
+ def delete_point_to_point_connectivity(self, obj):
+
+ # Ok - here is what we'll do to simulate the 'real world' - get a random number between 1 and 10
+ # 1-8 is considered 'successful' 8 is considered a transient error - 9 is a configuration problem
+ scenario = random.randint(1, 10)
+
+ if (scenario >= 1 and scenario <= 8):
+ obj.adminstate = 'disabled'
+ obj.operstate = 'inactive'
+ return True
+ elif (scenario == 9):
+ obj.adminstate = 'disabled'
+ obj.backend_status = '8 - Transient Server Error'
+ return False
+ else:
+ obj.adminstate = 'invalid'
+ obj.backend_status = '9 - Configuration Error'
+ return False
diff --git a/xos/synchronizer/providers/providerfactory.py b/xos/synchronizer/providers/providerfactory.py
new file mode 100644
index 0000000..9ef6cb8
--- /dev/null
+++ b/xos/synchronizer/providers/providerfactory.py
@@ -0,0 +1,21 @@
+import sys
+
+from synchronizers.metronetwork.providers.metronetworktestprovider import MetroNetworkTestProvider
+from synchronizers.metronetwork.providers.metronetworkrestprovider import MetroNetworkRestProvider
+
+
+class ProviderFactory(object):
+ @staticmethod
+ def getprovider(networkdevice):
+
+ undertest = False
+
+ # We either return Test or Rest
+ # By convention a NetworkDevice with name TestDomain will use test objects
+ if networkdevice.id == 'TestMetroNet' or networkdevice.id == 'TestCORD1Net' or networkdevice.id == 'TestCORD2Net':
+ undertest = True
+
+ if undertest:
+ return MetroNetworkTestProvider(networkdevice)
+ else:
+ return MetroNetworkRestProvider(networkdevice)
diff --git a/xos/synchronizer/run.sh b/xos/synchronizer/run.sh
new file mode 100755
index 0000000..87b6b7d
--- /dev/null
+++ b/xos/synchronizer/run.sh
@@ -0,0 +1,2 @@
+export XOS_DIR=/opt/xos
+python metronetwork-synchronizer.py -C $XOS_DIR/synchronizers/metronetwork/metronetwork_synchronizer_config
diff --git a/xos/synchronizer/run_devel.sh b/xos/synchronizer/run_devel.sh
new file mode 100755
index 0000000..1fc515d
--- /dev/null
+++ b/xos/synchronizer/run_devel.sh
@@ -0,0 +1,2 @@
+export XOS_DIR=/opt/xos
+python metronetwork-synchronizer-devel.py -C $XOS_DIR/synchronizers/metronetwork/metronetwork_synchronizer_config
diff --git a/xos/synchronizer/steps/sync_metronetworkservice.py b/xos/synchronizer/steps/sync_metronetworkservice.py
new file mode 100644
index 0000000..3b5bf27
--- /dev/null
+++ b/xos/synchronizer/steps/sync_metronetworkservice.py
@@ -0,0 +1,182 @@
+import os
+import sys
+
+from synchronizers.base.syncstep import SyncStep
+from core.models.netw import *
+from services.metronetwork.models import MetroNetworkService
+from xos.logger import Logger, logging
+from synchronizers.metronetwork.providers.providerfactory import ProviderFactory
+
+# metronetwork will be in steps/..
+parentdir = os.path.join(os.path.dirname(__file__), "..")
+sys.path.insert(0, parentdir)
+
+logger = Logger(level=logging.INFO)
+
+
+class SyncMetroNetworkService(SyncStep):
+ provides = [MetroNetworkService]
+ observes = MetroNetworkService
+ requested_interval = 0
+ initialized = False
+
+ def __init__(self, **args):
+ SyncStep.__init__(self, **args)
+
+ def fetch_pending(self, deletion=False):
+
+ # The general idea:
+ # We do one of two things in here:
+ # 1. Full Synchronization of the DBS (XOS <-> MetroONOS)
+ # 2. Look for updates between the two stores
+ # The first thing is potentially a much bigger
+ # operation and should not happen as often
+ #
+ # The Sync operation must take into account the 'deletion' flag
+
+ objs = []
+
+ # Get the NetworkService object - if it exists it will test us
+ # whether we should do a full sync or not - it all has our config
+ # information about the REST interface
+
+ metronetworkservice = self.get_metronetwork_service()
+ if not metronetworkservice:
+ logger.debug("No Service configured")
+ return objs
+
+ # Check to make sure the Service is enabled
+ metronetworkservice = self.get_metronetwork_service()
+ if metronetworkservice.administrativeState == 'disabled':
+ # Nothing to do
+ logger.debug("MetroService configured - state is Disabled")
+ return objs
+
+ # The Main Loop - retrieve all the NetworkDevice objects - for each of these
+ # Apply synchronization aspects
+ networkdevices = NetworkDevice.objects.all()
+
+ for dev in networkdevices:
+
+ # Set up the provider
+ provider = ProviderFactory.getprovider(dev)
+
+ # First check is for the AdminState of Disabled - do nothing
+ if dev.administrativeState == 'disabled':
+ # Nothing to do with this device
+ logger.debug("NetworkDevice %s: administrativeState set to Disabled - continuing" % dev.id)
+
+ # Now to the main options - are we syncing - deletion portion
+ elif dev.administrativeState == 'syncrequested' and deletion is True:
+
+ logger.info("NetworkDevice %s: administrativeState set to SyncRequested" % dev.id)
+
+ # Kill Links
+ networklinks = provider.get_network_links_for_deletion()
+ for link in networklinks:
+ objs.append(link)
+
+ # Kill Ports
+ allports = provider.get_network_ports_for_deletion()
+ for port in allports:
+ objs.append(port)
+
+ logger.info("NetworkDevice %s: Deletion part of Sync completed" % dev.id)
+ dev.administrativeState = 'syncinprogress'
+ dev.save(update_fields=['administrativeState'])
+
+ # Now to the main options - are we syncing - creation portion
+ elif dev.administrativeState == 'syncinprogress' and deletion is False:
+
+ logger.info("NetworkDevice %s: administrativeState set to SyncRequested" % dev.id)
+ # Reload objects in the reverse order of deletion
+
+ # Add Ports
+ networkports = provider.get_network_ports()
+ for port in networkports:
+ objs.append(port)
+
+ # Add Links
+ networklinks = provider.get_network_links()
+ for link in networklinks:
+ objs.append(link)
+
+ logger.info("NetworkDevice %s: Creation part of Sync completed" % dev.id)
+ dev.administrativeState = 'enabled'
+ dev.save(update_fields=['administrativeState'])
+
+ # If we are enabled - then check for events - in either direction and sync
+ elif dev.administrativeState == 'enabled' and deletion is False:
+ logger.debug("NetworkDevice: administrativeState set to Enabled - non deletion phase")
+
+ # This should be the 'normal running state' when we are not deleting - a few things to do in here
+
+ # Get the changed objects from the provider - deletions are handled separately
+ eventobjs = provider.get_updated_or_created_objects()
+ for eventobj in eventobjs:
+ # Simply put in the queue for update - this will handle both new and changed objects
+ objs.append(eventobj)
+
+ # Handle changes XOS -> ONOS
+ # Check for ConnectivityObjects that are in acticationequested state - creates to the backend
+ activatereqs = NetworkEdgeToEdgePointConnection.objects.filter(adminstate='activationrequested')
+ for activatereq in activatereqs:
+
+ # Call the XOS Interface to create the service
+ logger.debug("Attempting to create EdgePointToEdgePointConnectivity: %s" % activatereq.id)
+ if (provider.create_point_to_point_connectivity(activatereq)):
+ # Everyting is OK, lets let the system handle the persist
+ objs.append(activatereq)
+ else:
+ # In the case of an error we persist the state of the object directly to preserve
+ # the error code - and because that is how the base synchronizer is designed
+ activatereq.save()
+
+ # Check for ConnectivityObjects that are in deacticationequested state - deletes to the backend
+ deactivatereqs = NetworkEdgeToEdgePointConnection.objects.filter(adminstate='deactivationrequested')
+ for deactivatereq in deactivatereqs:
+
+ # Call the XOS Interface to delete the service
+ logger.debug("Attempting to delete EdgePointToEdgePointConnectivity: %s" % deactivatereq.id)
+ if provider.delete_point_to_point_connectivity(deactivatereq):
+ # Everyting is OK, lets let the system handle the persist
+ objs.append(deactivatereq)
+ else:
+ # In the case of an error we persist the state of the object directly to preserve
+ # the error code - and because that is how the base synchronizer is designed
+ deactivatereq.save()
+
+ # If we are enabled - and in our deletion pass then look for objects waiting for deletion
+ elif dev.administrativeState == 'enabled' and deletion is True:
+ logger.debug("NetworkDevice: administrativeState set to Enabled - deletion phase")
+
+ # Any object that is simply deleted in the model gets removed automatically - the synchronizer
+ # doesn't get involved - we just need to check for deleted objects in the domain and reflect that
+ # in the model
+ #
+ # Get the deleted objects from the provider
+ eventobjs = provider.get_deleted_objects()
+ for eventobj in eventobjs:
+ # Simply put in the queue for update - this will handle both new and changed objects
+ objs.append(eventobj)
+
+ # In add cases return the objects we are interested in
+ return objs
+
+ def sync_record(self, o):
+ # Simply save the record to the DB - both updates and adds are handled the same way
+ o.save()
+
+ def delete_record(self, o):
+ # Overriden to customize our behaviour - the core sync step for will remove the record directly
+ # We just log and return
+ logger.debug("deleting Object %s" % str(o), extra=o.tologdict())
+
+ def get_metronetwork_service(self):
+ # We only expect to have one of these objects in the system in the curent design
+ # So get the first element from the query
+ metronetworkservices = MetroNetworkService.get_service_objects().all()
+ if not metronetworkservices:
+ return None
+
+ return metronetworkservices[0]