mappingservice/neutron/src/main/java/org/opendaylight/lispflowmapping/neutron/intenthandler/listener/service/VbridgeTopologyListenerService.java

   1 /*
   2  * Copyright (c) 2017 Cisco Systems, Inc.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.lispflowmapping.neutron.intenthandler.listener.service;
   9
  10 import org.eclipse.jdt.annotation.NonNull;
  11 import org.opendaylight.lispflowmapping.neutron.intenthandler.listener.VbridgeTopologyListener;
  12 import org.opendaylight.mdsal.binding.api.DataBroker;
  13 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  14 import org.opendaylight.mdsal.binding.api.MountPointService;
  15 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vbridge.topology.rev160129.TopologyTypesVbridgeAugment;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vbridge.topology.rev160129.network.topology.topology.topology.types.VbridgeTopology;
  18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.TopologyTypes;
  21 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 /**
  27  * Created by Shakib Ahmed on 1/19/17.
  28  */
  29 public class VbridgeTopologyListenerService implements AutoCloseable {
  30     private static final Logger LOG = LoggerFactory.getLogger(VbridgeTopologyListenerService.class);
  31
  32     private final ListenerRegistration<VbridgeTopologyListener> listenerRegistration;
  33
  34     private boolean closed;
  35
  36     private static final DataTreeIdentifier<VbridgeTopology> TREE_LISTENER_IDENTIFIER =
  37             DataTreeIdentifier.create(
  38                     LogicalDatastoreType.OPERATIONAL,
  39                     InstanceIdentifier.builder(NetworkTopology.class)
  40                             .child(Topology.class)
  41                             .child(TopologyTypes.class)
  42                             .augmentation(TopologyTypesVbridgeAugment.class)
  43                             .child(VbridgeTopology.class).build());
  44
  45     public VbridgeTopologyListenerService(final ListenerRegistration<VbridgeTopologyListener> reg) {
  46         this.listenerRegistration = reg;
  47         this.closed = false;
  48     }
  49
  50     public static VbridgeTopologyListenerService initialize(final @NonNull DataBroker dataBroker,
  51                                                             final @NonNull MountPointService mountPointService) {
  52         final ListenerRegistration<VbridgeTopologyListener> reg =
  53                 dataBroker.registerDataTreeChangeListener(TREE_LISTENER_IDENTIFIER,
  54                         new VbridgeTopologyListener(dataBroker, mountPointService));
  55
  56         return new VbridgeTopologyListenerService(reg);
  57     }
  58
  59
  60     @Override
  61     public void close() {
  62         if (!closed) {
  63
  64             final VbridgeTopologyListener listener = listenerRegistration.getInstance();
  65
  66             listenerRegistration.close();
  67             listener.close();
  68
  69             closed = true;
  70         }
  71     }
  72 }