natservice/impl/src/main/java/org/opendaylight/netvirt/natservice/internal/SubnetmapListener.java

   1 /*
   2  * Copyright (c) 2016 Hewlett Packard Enterprise, Co. 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.netvirt.natservice.internal;
  10
  11 import javax.annotation.PreDestroy;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14 import org.opendaylight.infrautils.utils.concurrent.Executors;
  15 import org.opendaylight.mdsal.binding.api.DataBroker;
  16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  17 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.Subnetmaps;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.subnetmaps.Subnetmap;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 @Singleton
  25 public class SubnetmapListener extends AbstractAsyncDataTreeChangeListener<Subnetmap> {
  26     private static final Logger LOG = LoggerFactory.getLogger(SubnetmapListener.class);
  27     private final DataBroker dataBroker;
  28     private final ExternalNetworkGroupInstaller externalNetworkGroupInstaller;
  29     private final NatServiceCounters natServiceCounters;
  30
  31     @Inject
  32     public SubnetmapListener(final DataBroker dataBroker,
  33                              final ExternalNetworkGroupInstaller externalNetworkGroupInstaller,
  34                              NatServiceCounters natServiceCounters) {
  35         super(dataBroker, LogicalDatastoreType.CONFIGURATION,
  36                 InstanceIdentifier.create(Subnetmaps.class).child(Subnetmap.class),
  37                 Executors.newListeningSingleThreadExecutor("SubnetmapListener", LOG));
  38         this.dataBroker = dataBroker;
  39         this.externalNetworkGroupInstaller = externalNetworkGroupInstaller;
  40         this.natServiceCounters = natServiceCounters;
  41     }
  42
  43     public void init() {
  44         LOG.info("{} init", getClass().getSimpleName());
  45     }
  46
  47     @Override
  48     @PreDestroy
  49     public void close() {
  50         super.close();
  51         Executors.shutdownAndAwaitTermination(getExecutorService());
  52     }
  53
  54     @Override
  55     public void remove(InstanceIdentifier<Subnetmap> identifier, Subnetmap subnetmap) {
  56         LOG.trace("remove key: {} value: {}", subnetmap.key(), subnetmap);
  57         natServiceCounters.subnetmapRemove();
  58         externalNetworkGroupInstaller.removeExtNetGroupEntries(subnetmap);
  59     }
  60
  61     @Override
  62     public void update(InstanceIdentifier<Subnetmap> identifier,
  63                           Subnetmap subnetmapBefore, Subnetmap subnetmapAfter) {
  64         LOG.trace("update key: {}, original: {}, update: {}", subnetmapAfter.key(), subnetmapBefore, subnetmapAfter);
  65         natServiceCounters.subnetmapUpdate();
  66         externalNetworkGroupInstaller.installExtNetGroupEntries(subnetmapAfter);
  67     }
  68
  69     @Override
  70     public void add(InstanceIdentifier<Subnetmap> identifier, Subnetmap subnetmap) {
  71         LOG.trace("add key: {} value: {}", subnetmap.key(), subnetmap);
  72         natServiceCounters.subnetmapAdd();
  73         externalNetworkGroupInstaller.installExtNetGroupEntries(subnetmap);
  74     }
  75 }