nexthopmgr/nexthopmgr-impl/src/main/java/org/opendaylight/vpnservice/nexthopmgr/OdlInterfaceChangeListener.java

   1 /*
   2  * Copyright (c) 2015 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.nexthopmgr;
   9
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  13 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  14 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.BaseIds;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.L3tunnel;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfL3tunnel;
  23 import org.opendaylight.vpnservice.interfacemgr.interfaces.IInterfaceManager;
  24 import org.opendaylight.vpnservice.nexthopmgr.AbstractDataChangeListener;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28
  29 public class OdlInterfaceChangeListener extends AbstractDataChangeListener<Interface> implements AutoCloseable {
  30     private static final Logger LOG = LoggerFactory.getLogger(OdlInterfaceChangeListener.class);
  31
  32     private ListenerRegistration<DataChangeListener> listenerRegistration;
  33     private final DataBroker broker;
  34     private NexthopManager nexthopManager;
  35     private IInterfaceManager interfaceManager;
  36
  37
  38     public OdlInterfaceChangeListener(final DataBroker db, NexthopManager nhm, IInterfaceManager ifManager) {
  39         super(Interface.class);
  40         broker = db;
  41         nexthopManager = nhm;
  42         interfaceManager = ifManager;
  43         registerListener(db);
  44     }
  45
  46     @Override
  47     public void close() throws Exception {
  48         if (listenerRegistration != null) {
  49             try {
  50                 listenerRegistration.close();
  51             } catch (final Exception e) {
  52                 LOG.error("Error when cleaning up DataChangeListener.", e);
  53             }
  54             listenerRegistration = null;
  55         }
  56         LOG.info("odlInterface listener Closed");
  57     }
  58
  59
  60     private void registerListener(final DataBroker db) {
  61         try {
  62             listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
  63                     getWildCardPath(), OdlInterfaceChangeListener.this, DataChangeScope.SUBTREE);
  64         } catch (final Exception e) {
  65             LOG.error("Nexthop Manager Interfaces DataChange listener registration fail!", e);
  66             throw new IllegalStateException("Nexthop Manager registration Listener failed.", e);
  67         }
  68     }
  69
  70     @Override
  71     protected void add(InstanceIdentifier<Interface> identifier, Interface intrf) {
  72         LOG.info("key: " + identifier + ", value=" + intrf );
  73
  74         if (intrf.getType().equals(L3tunnel.class)) {
  75             IfL3tunnel intfData = intrf.getAugmentation(IfL3tunnel.class);
  76             String gwIp = intfData.getGatewayIp().toString();
  77             String remoteIp = intfData.getRemoteIp().toString();
  78             if (gwIp != null) {
  79                 remoteIp = gwIp;
  80             }
  81             NodeConnectorId ofPort = intrf.getAugmentation(BaseIds.class).getOfPortId();
  82             nexthopManager.createRemoteNextHop(intrf.getName(), ofPort.toString(), remoteIp);
  83         }
  84     }
  85
  86
  87     private InstanceIdentifier<Interface> getWildCardPath() {
  88         return InstanceIdentifier.create(Interfaces.class).child(Interface.class);
  89     }
  90
  91     @Override
  92     protected void remove(InstanceIdentifier<Interface> identifier,
  93             Interface intrf) {
  94         if (intrf.getType().equals(L3tunnel.class)) {
  95             long dpnId = interfaceManager.getDpnForInterface(intrf.getName());
  96             IfL3tunnel intfData = intrf.getAugmentation(IfL3tunnel.class);
  97             String gwIp = intfData.getGatewayIp().toString();
  98             String remoteIp = intfData.getRemoteIp().toString();
  99             if (gwIp != null) {
 100                 remoteIp = gwIp;
 101             }
 102             nexthopManager.removeRemoteNextHop(dpnId, remoteIp);
 103         }
 104     }
 105
 106     @Override
 107     protected void update(InstanceIdentifier<Interface> identifier,
 108             Interface original, Interface update) {
 109         // TODO Auto-generated method stub
 110
 111     }
 112
 113 }