impl/src/main/java/org/opendaylight/unimgr/impl/EvcDataTreeChangeListener.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.EvcAddCommand;
  17 import org.opendaylight.unimgr.command.EvcRemoveCommand;
  18 import org.opendaylight.unimgr.command.EvcUpdateCommand;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
  23 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 public class EvcDataTreeChangeListener extends UnimgrDataTreeChangeListener<Link> {
  29
  30     private static final Logger LOG = LoggerFactory.getLogger(EvcDataTreeChangeListener.class);
  31     private final  ListenerRegistration<EvcDataTreeChangeListener> listener;
  32
  33     public EvcDataTreeChangeListener(final DataBroker dataBroker) {
  34         super(dataBroker);
  35         final DataTreeIdentifier<Link> dataTreeIid = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, getEvcTopologyPath());
  36         listener = dataBroker.registerDataTreeChangeListener(dataTreeIid, this);
  37         LOG.info("EvcDataTreeChangeListener created and registered");
  38     }
  39
  40     @Override
  41     public void add(final DataTreeModification<Link> newDataObject) {
  42         if(newDataObject.getRootPath() != null && newDataObject.getRootNode() != null) {
  43             LOG.info("evc link {} created", newDataObject.getRootNode().getIdentifier());
  44             final EvcAddCommand evcAddCmd = new EvcAddCommand(dataBroker, newDataObject);
  45             evcAddCmd.execute();
  46         }
  47     }
  48
  49     @Override
  50     public void close() throws Exception {
  51         listener.close();
  52     }
  53
  54     private InstanceIdentifier<Link> getEvcTopologyPath() {
  55         final InstanceIdentifier<Link> evcPath = InstanceIdentifier
  56                                                    .create(NetworkTopology.class)
  57                                                    .child(Topology.class, new TopologyKey(UnimgrConstants.EVC_TOPOLOGY_ID))
  58                                                    .child(Link.class);
  59         return evcPath;
  60     }
  61
  62     @Override
  63     public void remove(final DataTreeModification<Link> removedDataObject) {
  64         if(removedDataObject.getRootPath() != null && removedDataObject.getRootNode() != null) {
  65             LOG.info("evc link {} deleted", removedDataObject.getRootNode().getIdentifier());
  66             final EvcRemoveCommand evcRemovedCmd = new EvcRemoveCommand(dataBroker, removedDataObject);
  67             evcRemovedCmd.execute();
  68         }
  69     }
  70
  71     @Override
  72     public void update(final DataTreeModification<Link> modifiedDataObject) {
  73         if(modifiedDataObject.getRootPath() != null && modifiedDataObject.getRootNode() != null) {
  74             LOG.info("evc link {} updated", modifiedDataObject.getRootNode().getIdentifier());
  75             final EvcUpdateCommand evcUpdateCmd = new EvcUpdateCommand(dataBroker, modifiedDataObject);
  76             evcUpdateCmd.execute();
  77         }
  78     }
  79 }