neutronvpn/impl/src/main/java/org/opendaylight/netvirt/neutronvpn/UpgradeStateListener.java

   1 /*
   2  * Copyright (c) 2017 Red Hat, 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.netvirt.neutronvpn;
   9
  10 import java.util.Objects;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.eclipse.jdt.annotation.NonNull;
  14 import org.opendaylight.mdsal.binding.api.DataBroker;
  15 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  16 import org.opendaylight.serviceutils.tools.listener.AbstractClusteredSyncDataTreeChangeListener;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.serviceutils.upgrade.rev180702.UpgradeConfig;
  18 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 @Singleton
  23 public class UpgradeStateListener extends AbstractClusteredSyncDataTreeChangeListener<UpgradeConfig> {
  24     private static final Logger LOG = LoggerFactory.getLogger(UpgradeStateListener.class);
  25
  26     private final NeutronSubnetGwMacResolver neutronSubnetGwMacResolver;
  27
  28     @Inject
  29     public UpgradeStateListener(final DataBroker dataBroker,
  30                                 final NeutronSubnetGwMacResolver neutronSubnetGwMacResolver) {
  31         super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(UpgradeConfig.class));
  32         LOG.trace("UpgradeStateListener (neutronvpn) initialized");
  33         this.neutronSubnetGwMacResolver = neutronSubnetGwMacResolver;
  34     }
  35
  36     @Override
  37     public void add(@NonNull UpgradeConfig newDataObject) {
  38     }
  39
  40     @Override
  41     public void remove(@NonNull UpgradeConfig removedDataObject) {
  42     }
  43
  44     @Override
  45     public void update(@NonNull UpgradeConfig original, UpgradeConfig updated) {
  46         LOG.info("UpgradeStateListener update from {} to {}", original, updated);
  47         if (Objects.equals(original, updated)) {
  48             return;
  49         }
  50         neutronSubnetGwMacResolver.sendArpRequestsToExtGateways();
  51     }
  52 }