vpnservice/elanmanager/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.PostConstruct;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  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.yang.gen.v1.urn.opendaylight.netvirt.elan.config.rev150710.ElanConfig;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * Listen for new OVSDB nodes and then make sure they have the necessary bridges configured.
  30  */
  31 @Singleton
  32 public class ElanOvsdbNodeListener extends AsyncDataTreeChangeListenerBase<Node, ElanOvsdbNodeListener> {
  33     private static final Logger LOG = LoggerFactory.getLogger(ElanOvsdbNodeListener.class);
  34     private final DataBroker dataBroker;
  35     private final ElanBridgeManager bridgeMgr;
  36     private final IElanService elanProvider;
  37     private final boolean generateIntBridgeMac;
  38     private final boolean autoCreateBridge;
  39     private final TransportZoneNotificationUtil tzUtil;
  40
  41     /**
  42      * Constructor.
  43      * @param dataBroker the DataBroker
  44      * @param elanConfig the elan configuration
  45      * @param bridgeMgr bridge manager
  46      * @param elanProvider elan provider
  47      */
  48     @Inject
  49     public ElanOvsdbNodeListener(final DataBroker dataBroker, ElanConfig elanConfig,
  50                                  final ElanBridgeManager bridgeMgr,
  51                                  final IElanService elanProvider, final TransportZoneNotificationUtil tzUtil) {
  52         this.dataBroker = dataBroker;
  53         autoCreateBridge = elanConfig.isAutoCreateBridge();
  54         this.generateIntBridgeMac = elanConfig.isIntBridgeGenMac();
  55         this.bridgeMgr = bridgeMgr;
  56         this.elanProvider = elanProvider;
  57         this.tzUtil = tzUtil;
  58     }
  59
  60     @Override
  61     @PostConstruct
  62     public void init() {
  63         LOG.info("{} init", getClass().getSimpleName());
  64         registerListener(LogicalDatastoreType.OPERATIONAL, dataBroker);
  65     }
  66
  67     @Override
  68     protected InstanceIdentifier<Node> getWildCardPath() {
  69         return InstanceIdentifier
  70                 .create(NetworkTopology.class)
  71                 .child(Topology.class, new TopologyKey(SouthboundUtils.OVSDB_TOPOLOGY_ID))
  72                 .child(Node.class);
  73     }
  74
  75     @Override
  76     protected void remove(InstanceIdentifier<Node> identifier, Node node) {
  77         elanProvider.deleteExternalElanNetworks(node);
  78     }
  79
  80     @Override
  81     protected void update(InstanceIdentifier<Node> identifier, Node original, Node update) {
  82         LOG.debug("ElanOvsdbNodeListener.update, updated node detected. original: {} new: {}", original, update);
  83         Boolean integrationBridgeExist = bridgeMgr.isBridgeOnOvsdbNode(update, bridgeMgr.getIntegrationBridgeName());
  84         // ignore updates where the bridge was deleted
  85         if (!(bridgeMgr.isBridgeOnOvsdbNode(original, bridgeMgr.getIntegrationBridgeName())
  86                 && !integrationBridgeExist)) {
  87             doNodeUpdate(update);
  88         }
  89         if (integrationBridgeExist) {
  90             tzUtil.handleOvsdbNodeUpdate(original, update, identifier.firstKeyOf(Node.class).getNodeId().getValue());
  91         }
  92         elanProvider.updateExternalElanNetworks(original, update);
  93     }
  94
  95     @Override
  96     protected void add(InstanceIdentifier<Node> identifier, Node node) {
  97         LOG.debug("ElanOvsdbNodeListener.add, new node detected {}", node);
  98         doNodeUpdate(node);
  99         elanProvider.createExternalElanNetworks(node);
 100     }
 101
 102     private void doNodeUpdate(Node node) {
 103         if (autoCreateBridge) {
 104             bridgeMgr.processNodePrep(node, generateIntBridgeMac);
 105         }
 106     }
 107
 108     /* (non-Javadoc)
 109      * @see org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase#getDataTreeChangeListener()
 110      */
 111     @Override
 112     protected ElanOvsdbNodeListener getDataTreeChangeListener() {
 113         return ElanOvsdbNodeListener.this;
 114     }
 115 }