opendaylight/md-sal/compatibility/sal-compatibility/src/main/java/org/opendaylight/controller/sal/compatibility/topology/TopologyCommitHandler.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  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.controller.sal.compatibility.topology;
   9
  10 import static org.opendaylight.controller.sal.compatibility.topology.TopologyMapping.toAdEdge;
  11 import static org.opendaylight.controller.sal.compatibility.topology.TopologyMapping.toTopoEdgeUpdate;
  12
  13 import java.util.Map.Entry;
  14 import java.util.concurrent.CopyOnWriteArrayList;
  15
  16 import org.opendaylight.controller.md.sal.binding.util.TypeSafeDataReader;
  17 import org.opendaylight.controller.md.sal.common.api.data.DataChangeEvent;
  18 import org.opendaylight.controller.sal.binding.api.data.DataChangeListener;
  19 import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
  20 import org.opendaylight.controller.sal.core.UpdateType;
  21 import org.opendaylight.controller.sal.topology.IPluginOutTopologyService;
  22 import org.opendaylight.controller.sal.topology.TopoEdgeUpdate;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
  25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  26 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
  28 import org.opendaylight.yangtools.yang.binding.DataObject;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class TopologyCommitHandler implements DataChangeListener {
  34     private static final Logger LOG = LoggerFactory.getLogger(TopologyCommitHandler.class);
  35
  36     private IPluginOutTopologyService topologyPublisher;
  37
  38     private final DataProviderService dataService;
  39
  40     public TopologyCommitHandler(final DataProviderService dataService, final IPluginOutTopologyService topologyPub) {
  41         this.topologyPublisher = topologyPub;
  42         this.dataService = dataService;
  43     }
  44
  45     @Override
  46     public void onDataChanged(final DataChangeEvent<InstanceIdentifier<?>, DataObject> modification) {
  47         CopyOnWriteArrayList<TopoEdgeUpdate> msg = new CopyOnWriteArrayList<TopoEdgeUpdate>();
  48         try {
  49             TypeSafeDataReader reader = TypeSafeDataReader.forReader(dataService);
  50             InstanceIdentifier<Topology> topologyPath = InstanceIdentifier.builder(NetworkTopology.class)
  51                     .child(Topology.class, new TopologyKey(new TopologyId("flow:1"))).build();
  52             Topology topology = reader.readOperationalData(topologyPath);
  53
  54             for (Entry<InstanceIdentifier<? extends DataObject>, DataObject> entry : modification
  55                     .getCreatedOperationalData().entrySet()) {
  56                 if (entry.getValue() instanceof Link
  57                         && modification.getCreatedOperationalData().containsKey(entry.getKey())) {
  58                     msg.add(toTopoEdgeUpdate(toAdEdge((Link) entry.getValue(), topology), UpdateType.ADDED, reader));
  59                 }
  60             }
  61
  62             for (Entry<InstanceIdentifier<? extends DataObject>, DataObject> entry : modification
  63                     .getUpdatedOperationalData().entrySet()) {
  64                 if (entry.getValue() instanceof Link) {
  65                     msg.add(toTopoEdgeUpdate(toAdEdge((Link) entry.getValue(), topology), UpdateType.CHANGED, reader));
  66                 }
  67             }
  68             for (InstanceIdentifier<? extends DataObject> path : modification.getRemovedOperationalData()) {
  69                 if (path.getTargetType() == Link.class) {
  70                     Link link = (Link) modification.getOriginalOperationalData().get(path);
  71                     msg.add(toTopoEdgeUpdate(toAdEdge(link, topology), UpdateType.CHANGED, reader));
  72                 }
  73
  74             }
  75
  76             if (topologyPublisher != null && msg != null && !msg.isEmpty()) {
  77                 topologyPublisher.edgeUpdate(msg);
  78             }
  79
  80         } catch (Exception e) {
  81             LOG.error("Exception caught", e);
  82         }
  83     }
  84
  85     protected IPluginOutTopologyService getTopologyPublisher() {
  86         return topologyPublisher;
  87     }
  88
  89     protected void setTopologyPublisher(final IPluginOutTopologyService topologyPublisher) {
  90         this.topologyPublisher = topologyPublisher;
  91     }
  92
  93 }