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diff --git a/networking-odl/networking_odl/journal/full_sync.py b/networking-odl/networking_odl/journal/full_sync.py
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+#
+# Copyright (C) 2016 Red Hat, Inc.
+#
+# 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 requests
+
+from neutron import context as neutron_context
+from neutron import manager
+from neutron.plugins.common import constants
+from neutron_lib import constants as l3_constants
+
+from networking_odl.common import client
+from networking_odl.common import constants as odl_const
+from networking_odl.db import db
+
+# Define which pending operation types should be deleted
+_CANARY_NETWORK_ID = "bd8db3a8-2b30-4083-a8b3-b3fd46401142"
+_CANARY_TENANT_ID = "bd8db3a8-2b30-4083-a8b3-b3fd46401142"
+_CANARY_NETWORK_DATA = {'id': _CANARY_NETWORK_ID,
+ 'tenant_id': _CANARY_TENANT_ID,
+ 'name': 'Sync Canary Network',
+ 'admin_state_up': False}
+_OPS_TO_DELETE_ON_SYNC = (odl_const.ODL_CREATE, odl_const.ODL_UPDATE)
+_L2_RESOURCES_TO_SYNC = [(odl_const.ODL_SG, odl_const.ODL_SGS),
+ (odl_const.ODL_SG_RULE, odl_const.ODL_SG_RULES),
+ (odl_const.ODL_NETWORK, odl_const.ODL_NETWORKS),
+ (odl_const.ODL_SUBNET, odl_const.ODL_SUBNETS),
+ (odl_const.ODL_PORT, odl_const.ODL_PORTS)]
+_L3_RESOURCES_TO_SYNC = [(odl_const.ODL_ROUTER, odl_const.ODL_ROUTERS),
+ (odl_const.ODL_FLOATINGIP, odl_const.ODL_FLOATINGIPS)]
+_CLIENT = client.OpenDaylightRestClient.create_client()
+
+
+def full_sync(session):
+ if not _full_sync_needed(session):
+ return
+
+ db.delete_pending_rows(session, _OPS_TO_DELETE_ON_SYNC)
+
+ dbcontext = neutron_context.get_admin_context()
+ plugin = manager.NeutronManager.get_plugin()
+ for resource_type, collection_name in _L2_RESOURCES_TO_SYNC:
+ _sync_resources(session, plugin, dbcontext, resource_type,
+ collection_name)
+
+ l3plugin = manager.NeutronManager.get_service_plugins().get(
+ constants.L3_ROUTER_NAT)
+ for resource_type, collection_name in _L3_RESOURCES_TO_SYNC:
+ _sync_resources(session, l3plugin, dbcontext, resource_type,
+ collection_name)
+ _sync_router_ports(session, plugin, dbcontext)
+
+ db.create_pending_row(session, odl_const.ODL_NETWORK, _CANARY_NETWORK_ID,
+ odl_const.ODL_CREATE, _CANARY_NETWORK_DATA)
+
+
+def _full_sync_needed(session):
+ return (_canary_network_missing_on_odl() and
+ _canary_network_not_in_journal(session))
+
+
+def _canary_network_missing_on_odl():
+ # Try to reach the ODL server, sometimes it might be up & responding to
+ # HTTP calls but inoperative..
+ response = _CLIENT.get(odl_const.ODL_NETWORKS)
+ response.raise_for_status()
+
+ response = _CLIENT.get(odl_const.ODL_NETWORKS + "/" + _CANARY_NETWORK_ID)
+ if response.status_code == requests.codes.not_found:
+ return True
+
+ # In case there was an error raise it up because we don't know how to deal
+ # with it..
+ response.raise_for_status()
+ return False
+
+
+def _canary_network_not_in_journal(session):
+ return not db.check_for_pending_or_processing_ops(session,
+ _CANARY_NETWORK_ID,
+ odl_const.ODL_CREATE)
+
+
+def _sync_resources(session, plugin, dbcontext, object_type, collection_name):
+ obj_getter = getattr(plugin, 'get_%s' % collection_name)
+ resources = obj_getter(dbcontext)
+
+ for resource in resources:
+ db.create_pending_row(session, object_type, resource['id'],
+ odl_const.ODL_CREATE, resource)
+
+
+def _sync_router_ports(session, plugin, dbcontext):
+ filters = {'device_owner': [l3_constants.DEVICE_OWNER_ROUTER_INTF]}
+ router_ports = plugin.get_ports(dbcontext, filters=filters)
+ for port in router_ports:
+ resource = {'subnet_id': port['fixed_ips'][0]['subnet_id'],
+ 'port_id': port['id'],
+ 'id': port['device_id'],
+ 'tenant_id': port['tenant_id']}
+ db.create_pending_row(session, odl_const.ODL_ROUTER_INTF, port['id'],
+ odl_const.ODL_ADD, resource)