elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanOvsdbNodeListener.java

   1 /*
   2  * Copyright (c) 2016, 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.elan.internal;
   9
  10 import javax.annotation.PreDestroy;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.opendaylight.infrautils.utils.concurrent.Executors;
  14 import org.opendaylight.mdsal.binding.api.DataBroker;
  15 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  16 import org.opendaylight.netvirt.elan.utils.TransportZoneNotificationUtil;
  17 import org.opendaylight.netvirt.elanmanager.api.IElanService;
  18 import org.opendaylight.ovsdb.utils.southbound.utils.SouthboundUtils;
  19 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.config.rev150710.ElanConfig;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * Listen for new OVSDB nodes and then make sure they have the necessary bridges configured.
  31  */
  32 @Singleton
  33 public class ElanOvsdbNodeListener extends AbstractAsyncDataTreeChangeListener<Node> {
  34     private static final Logger LOG = LoggerFactory.getLogger(ElanOvsdbNodeListener.class);
  35     private final DataBroker dataBroker;
  36     private final ElanBridgeManager bridgeMgr;
  37     private final IElanService elanProvider;
  38     private final boolean generateIntBridgeMac;
  39     private final boolean autoCreateBridge;
  40     private final TransportZoneNotificationUtil tzUtil;
  41
  42     /**
  43      * Constructor.
  44      * @param dataBroker the DataBroker
  45      * @param elanConfig the elan configuration
  46      * @param bridgeMgr bridge manager
  47      * @param elanProvider elan provider
  48      * @param tzUtil TransportzoneNotificationUtils
  49      */
  50     @Inject
  51     public ElanOvsdbNodeListener(final DataBroker dataBroker, ElanConfig elanConfig,
  52                                  final ElanBridgeManager bridgeMgr,
  53                                  final IElanService elanProvider, final TransportZoneNotificationUtil tzUtil) {
  54         super(dataBroker, LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(NetworkTopology.class)
  55                 .child(Topology.class, new TopologyKey(SouthboundUtils.OVSDB_TOPOLOGY_ID)).child(Node.class),
  56                 Executors.newListeningSingleThreadExecutor("ElanOvsdbNodeListener", LOG));
  57         this.dataBroker = dataBroker;
  58         autoCreateBridge = elanConfig.isAutoCreateBridge();
  59         this.generateIntBridgeMac = elanConfig.isIntBridgeGenMac();
  60         this.bridgeMgr = bridgeMgr;
  61         this.elanProvider = elanProvider;
  62         this.tzUtil = tzUtil;
  63     }
  64
  65     public void init() {
  66         LOG.info("{} init", getClass().getSimpleName());
  67     }
  68
  69     @Override
  70     @PreDestroy
  71     public void close() {
  72         super.close();
  73         Executors.shutdownAndAwaitTermination(getExecutorService());
  74     }
  75
  76     @Override
  77     public void remove(InstanceIdentifier<Node> identifier, Node node) {
  78         elanProvider.deleteExternalElanNetworks(node);
  79     }
  80
  81     @Override
  82     public void update(InstanceIdentifier<Node> identifier, Node original, Node update) {
  83         LOG.debug("ElanOvsdbNodeListener.update, updated node detected. original: NodeId = {}", original.getNodeId());
  84         boolean integrationBridgeExist = bridgeMgr.isBridgeOnOvsdbNode(update, bridgeMgr.getIntegrationBridgeName());
  85         // ignore updates where the bridge was deleted
  86         if (!(bridgeMgr.isBridgeOnOvsdbNode(original, bridgeMgr.getIntegrationBridgeName())
  87                 && !integrationBridgeExist)) {
  88             doNodeUpdate(update);
  89         }
  90         bridgeMgr.handleNewProviderNetBridges(original, update);
  91         if (integrationBridgeExist) {
  92             tzUtil.handleOvsdbNodeUpdate(original, update, identifier.firstKeyOf(Node.class).getNodeId().getValue());
  93         }
  94         elanProvider.updateExternalElanNetworks(original, update);
  95     }
  96
  97     @Override
  98     public void add(InstanceIdentifier<Node> identifier, Node node) {
  99         LOG.debug("ElanOvsdbNodeListener.add, new node detected {}", node);
 100         doNodeUpdate(node);
 101         elanProvider.createExternalElanNetworks(node);
 102     }
 103
 104     private void doNodeUpdate(Node node) {
 105         if (autoCreateBridge) {
 106             bridgeMgr.processNodePrep(node, generateIntBridgeMac);
 107         }
 108     }
 109
 110     /* (non-Javadoc)
 111      * @see org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase#getDataTreeChangeListener()
 112      */
 113 }