itm/itm-impl/src/main/java/org/opendaylight/genius/itm/listeners/cache/StateTunnelListListener.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. 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.genius.itm.listeners.cache;
  10
  11 import org.opendaylight.genius.datastoreutils.AsyncClusteredDataTreeChangeListenerBase;
  12 import org.opendaylight.genius.itm.globals.ITMConstants;
  13 import org.opendaylight.genius.utils.cache.DataStoreCache;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.TunnelsState;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.tunnels_state.StateTunnelList;
  18 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 import javax.annotation.PostConstruct;
  23 import javax.annotation.PreDestroy;
  24 import javax.inject.Inject;
  25 import javax.inject.Singleton;
  26
  27 @Singleton
  28 public class StateTunnelListListener extends AsyncClusteredDataTreeChangeListenerBase<StateTunnelList,StateTunnelListListener> implements AutoCloseable{
  29     private static final Logger LOG = LoggerFactory.getLogger(StateTunnelListListener.class);
  30     private final DataBroker broker;
  31
  32     /**
  33      * Responsible for listening to tunnel interface state change
  34      *
  35      */
  36     @Inject
  37      public StateTunnelListListener(final DataBroker dataBroker) {
  38          super(StateTunnelList.class, StateTunnelListListener.class);
  39          DataStoreCache.create(ITMConstants.TUNNEL_STATE_CACHE_NAME);
  40              this.broker = dataBroker;
  41          try {
  42              registerListener(LogicalDatastoreType.OPERATIONAL, this.broker);
  43           } catch (final Exception e) {
  44              LOG.error("StateTunnelListListener DataChange listener registration fail!", e);
  45          }
  46     }
  47
  48     @PostConstruct
  49     public void start() throws Exception {
  50         LOG.info("Tunnel Interface State Listener Started");
  51     }
  52
  53     @Override
  54     @PreDestroy
  55     public void close() throws Exception {
  56         LOG.info("Tunnel Interface State Listener Closed");
  57     }
  58
  59     @Override
  60     protected void remove(InstanceIdentifier<StateTunnelList> identifier, StateTunnelList del) {
  61         DataStoreCache.remove(ITMConstants.TUNNEL_STATE_CACHE_NAME, del.getTunnelInterfaceName());
  62     }
  63
  64     @Override
  65     protected void update(InstanceIdentifier<StateTunnelList> identifier, StateTunnelList original,
  66     StateTunnelList update) {
  67         DataStoreCache.add(ITMConstants.TUNNEL_STATE_CACHE_NAME, update.getTunnelInterfaceName(), update);
  68     }
  69
  70     @Override
  71     protected void add(InstanceIdentifier<StateTunnelList> identifier, StateTunnelList add) {
  72         DataStoreCache.add(ITMConstants.TUNNEL_STATE_CACHE_NAME, add.getTunnelInterfaceName(), add);
  73     }
  74
  75     @Override
  76     protected StateTunnelListListener getDataTreeChangeListener() {
  77         return this;
  78     }
  79
  80     @Override
  81     protected InstanceIdentifier<StateTunnelList> getWildCardPath() {
  82         return InstanceIdentifier.builder(TunnelsState.class).
  83                 child(StateTunnelList.class).build();
  84     }
  85
  86 }