vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/vpnservice/elan/internal/ElanInterfaceStateClusteredListener.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 package org.opendaylight.vpnservice.elan.internal;
   9
  10 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataChangeListener;
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  13 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.vpnservice.datastoreutils.AsyncClusteredDataChangeListenerBase;
  16 import org.opendaylight.vpnservice.elan.utils.ElanClusterUtils;
  17 import org.opendaylight.vpnservice.elan.utils.ElanUtils;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.external.tunnel.list.ExternalTunnel;
  22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 public class ElanInterfaceStateClusteredListener extends
  28         AsyncClusteredDataChangeListenerBase<Interface, ElanInterfaceStateClusteredListener> implements AutoCloseable {
  29     private DataBroker broker;
  30     private ElanInterfaceManager elanInterfaceManager;
  31     private ListenerRegistration<DataChangeListener> listenerRegistration;
  32
  33     private static final Logger logger = LoggerFactory.getLogger(ElanInterfaceStateClusteredListener.class);
  34
  35     public ElanInterfaceStateClusteredListener(final DataBroker db, final ElanInterfaceManager ifManager) {
  36         super(Interface.class, ElanInterfaceStateClusteredListener.class);
  37         broker = db;
  38         elanInterfaceManager = ifManager;
  39         registerListener(db);
  40     }
  41
  42     private void registerListener(final DataBroker db) {
  43         try {
  44             listenerRegistration = broker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
  45                     getWildCardPath(), ElanInterfaceStateClusteredListener.this, AsyncDataBroker.DataChangeScope.BASE);
  46         } catch (final Exception e) {
  47             logger.error("Elan Interfaces DataChange listener registration fail!", e);
  48             throw new IllegalStateException("ElanInterface registration Listener failed.", e);
  49         }
  50     }
  51
  52     @Override
  53     public InstanceIdentifier<Interface> getWildCardPath() {
  54         return InstanceIdentifier.create(InterfacesState.class).child(Interface.class);
  55     }
  56
  57     @Override
  58     protected ClusteredDataChangeListener getDataChangeListener() {
  59         return ElanInterfaceStateClusteredListener.this;
  60     }
  61
  62     @Override
  63     protected AsyncDataBroker.DataChangeScope getDataChangeScope() {
  64         return AsyncDataBroker.DataChangeScope.BASE;
  65     }
  66
  67     @Override
  68     protected void remove(InstanceIdentifier<Interface> identifier, Interface delIf) {
  69     }
  70
  71     @Override
  72     protected void update(InstanceIdentifier<Interface> identifier, Interface original, final Interface update) {
  73         add(identifier, update);
  74     }
  75
  76     @Override
  77     protected void add(InstanceIdentifier<Interface> identifier, final Interface intrf) {
  78         if (intrf.getType() != null && intrf.getType().equals(Tunnel.class)) {
  79             if (intrf.getOperStatus().equals(Interface.OperStatus.Up)) {
  80                 final String interfaceName = intrf.getName();
  81
  82                 ElanClusterUtils.runOnlyInLeaderNode(new Runnable() {
  83                     @Override
  84                     public void run() {
  85                         logger.debug("running external tunnel update job for interface {} added", interfaceName);
  86                         handleExternalTunnelUpdate(interfaceName, intrf);
  87                     }
  88                 });
  89             }
  90         }
  91     }
  92
  93     private void handleExternalTunnelUpdate(String interfaceName, Interface update) {
  94         ExternalTunnel externalTunnel = ElanUtils.getExternalTunnel(interfaceName, LogicalDatastoreType.CONFIGURATION);
  95         if (externalTunnel != null) {
  96             logger.debug("handling external tunnel update event for ext device dst {}  src {} ",
  97                     externalTunnel.getDestinationDevice(), externalTunnel.getSourceDevice());
  98             elanInterfaceManager.handleExternalTunnelStateEvent(externalTunnel, update);
  99         } else {
 100             logger.trace("External tunnel not found with interfaceName: {}", interfaceName);
 101         }
 102     }
 103 }