impl/src/main/java/org/opendaylight/unimgr/impl/OvsNodeDataTreeChangeListener.java

   1 /*
   2  * Copyright (c) 2016 CableLabs 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
   9 package org.opendaylight.unimgr.impl;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  13 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.unimgr.api.UnimgrDataTreeChangeListener;
  16 import org.opendaylight.unimgr.command.OvsNodeAddCommand;
  17 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  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 public class OvsNodeDataTreeChangeListener extends UnimgrDataTreeChangeListener<Node> {
  27
  28     private static final Logger LOG = LoggerFactory.getLogger(OvsNodeDataTreeChangeListener.class);
  29     private final ListenerRegistration<OvsNodeDataTreeChangeListener> listener;
  30
  31     public OvsNodeDataTreeChangeListener(final DataBroker dataBroker) {
  32         super(dataBroker);
  33         final InstanceIdentifier<Node> nodePath = getOvsNodeTopologyPath();
  34         final DataTreeIdentifier<Node> dataTreeIid = new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL, nodePath);
  35         listener = dataBroker.registerDataTreeChangeListener(dataTreeIid, this);
  36         LOG.info("ovsNodeDataTreeChangeListener created and registered");
  37     }
  38
  39     @Override
  40     public void add(final DataTreeModification<Node> newDataObject) {
  41         if (newDataObject.getRootPath() != null && newDataObject.getRootNode() != null) {
  42             LOG.info("ovs node {} created", newDataObject.getRootNode().getIdentifier());
  43             final OvsNodeAddCommand ovsNodeAddCmd = new OvsNodeAddCommand(dataBroker, newDataObject);
  44             ovsNodeAddCmd.execute();
  45         }
  46     }
  47
  48     @Override
  49     public void close() throws Exception {
  50         listener.close();
  51     }
  52
  53     private InstanceIdentifier<Node> getOvsNodeTopologyPath() {
  54         final InstanceIdentifier<Node> topoPath = InstanceIdentifier
  55                                                     .create(NetworkTopology.class)
  56                                                     .child(Topology.class,
  57                                                             new TopologyKey(UnimgrConstants.OVSDB_TOPOLOGY_ID))
  58                                                     .child(Node.class);
  59         return topoPath;
  60     }
  61
  62     @Override
  63     public void remove(final DataTreeModification<Node> removedDataObject) {
  64         // TODO Auto-generated method stub
  65     }
  66
  67     @Override
  68     public void update(final DataTreeModification<Node> modifiedDataObject) {
  69         // TODO Auto-generated method stub
  70     }
  71
  72 }