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.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  15 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.BaseIds;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.L3tunnel;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfL3tunnel;
  25 import org.opendaylight.vpnservice.interfacemgr.interfaces.IInterfaceManager;
  26 import org.opendaylight.vpnservice.nexthopmgr.AbstractDataChangeListener;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30
  31 public class OdlInterfaceChangeListener extends AbstractDataChangeListener<Interface> implements AutoCloseable {
  32     private static final Logger LOG = LoggerFactory.getLogger(OdlInterfaceChangeListener.class);
  33
  34     private ListenerRegistration<DataChangeListener> listenerRegistration;
  35     private final DataBroker broker;
  36     private NexthopManager nexthopManager;
  37     private IInterfaceManager interfaceManager;
  38
  39
  40     public OdlInterfaceChangeListener(final DataBroker db, NexthopManager nhm, IInterfaceManager ifManager) {
  41         super(Interface.class);
  42         broker = db;
  43         nexthopManager = nhm;
  44         interfaceManager = ifManager;
  45         registerListener(db);
  46     }
  47
  48     @Override
  49     public void close() throws Exception {
  50         if (listenerRegistration != null) {
  51             try {
  52                 listenerRegistration.close();
  53             } catch (final Exception e) {
  54                 LOG.error("Error when cleaning up DataChangeListener.", e);
  55             }
  56             listenerRegistration = null;
  57         }
  58         LOG.info("odlInterface listener Closed");
  59     }
  60
  61
  62     private void registerListener(final DataBroker db) {
  63         try {
  64             listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
  65                     getWildCardPath(), OdlInterfaceChangeListener.this, DataChangeScope.SUBTREE);
  66         } catch (final Exception e) {
  67             LOG.error("Nexthop Manager Interfaces DataChange listener registration fail!", e);
  68             throw new IllegalStateException("Nexthop Manager registration Listener failed.", e);
  69         }
  70     }
  71
  72     @Override
  73     protected void add(InstanceIdentifier<Interface> identifier, Interface intrf) {
  74         LOG.trace("key: " + identifier + ", value=" + intrf );
  75
  76         if (intrf.getType().equals(L3tunnel.class)) {
  77             IfL3tunnel intfData = intrf.getAugmentation(IfL3tunnel.class);
  78             IpAddress gatewayIp = intfData.getGatewayIp();
  79             String gwIp = (gatewayIp == null) ? null : gatewayIp.toString();
  80             String remoteIp = null;
  81             if (gwIp != null) {
  82                 remoteIp = gwIp;
  83             } else {
  84                 IpAddress remIp = intfData.getRemoteIp();
  85                 remoteIp = (remIp == null) ? null : remIp.toString();
  86             }
  87             NodeConnectorId ofPort = intrf.getAugmentation(BaseIds.class).getOfPortId();
  88             nexthopManager.createRemoteNextHop(intrf.getName(), ofPort.toString(), remoteIp);
  89         }
  90     }
  91
  92
  93     private InstanceIdentifier<Interface> getWildCardPath() {
  94         return InstanceIdentifier.create(Interfaces.class).child(Interface.class);
  95     }
  96
  97     @Override
  98     protected void remove(InstanceIdentifier<Interface> identifier,
  99             Interface intrf) {
 100         if (intrf.getType().equals(L3tunnel.class)) {
 101             long dpnId = interfaceManager.getDpnForInterface(intrf.getName());
 102             IfL3tunnel intfData = intrf.getAugmentation(IfL3tunnel.class);
 103             String gwIp = intfData.getGatewayIp().toString();
 104             String remoteIp = intfData.getRemoteIp().toString();
 105             if (gwIp != null) {
 106                 remoteIp = gwIp;
 107             }
 108             nexthopManager.removeRemoteNextHop(dpnId, remoteIp);
 109         }
 110     }
 111
 112     @Override
 113     protected void update(InstanceIdentifier<Interface> identifier,
 114             Interface original, Interface update) {
 115         // TODO Auto-generated method stub
 116
 117     }
 118
 119 }