dhcpservice/dhcpservice-impl/src/main/java/org/opendaylight/vpnservice/dhcpservice/DhcpDesignatedDpnListener.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.dhcpservice;
   9
  10 import java.math.BigInteger;
  11 import java.util.List;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataChangeListener;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
  17 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  18 import org.opendaylight.vpnservice.datastoreutils.AsyncClusteredDataChangeListenerBase;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.dhcp.rev160428.DesignatedSwitchesForExternalTunnels;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.dhcp.rev160428.designated.switches._for.external.tunnels.DesignatedSwitchForTunnel;
  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 DhcpDesignatedDpnListener extends AsyncClusteredDataChangeListenerBase<DesignatedSwitchForTunnel, DhcpDesignatedDpnListener> implements AutoCloseable {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(DhcpDesignatedDpnListener.class);
  30     private ListenerRegistration<DataChangeListener> listenerRegistration;
  31     private DhcpExternalTunnelManager dhcpExternalTunnelManager;
  32     private DataBroker broker;
  33
  34     public DhcpDesignatedDpnListener(final DhcpExternalTunnelManager dhcpExternalTunnelManager, final DataBroker broker) {
  35         super(DesignatedSwitchForTunnel.class, DhcpDesignatedDpnListener.class);
  36         this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
  37         this.broker = broker;
  38     }
  39
  40     @Override
  41     public void close() throws Exception {
  42         if (listenerRegistration != null) {
  43             try {
  44                 listenerRegistration.close();
  45             } catch (final Exception e) {
  46                 LOG.error("Error when cleaning up DhcpDesignatedDpnListener.", e);
  47             }
  48             listenerRegistration = null;
  49         }
  50         LOG.debug("DhcpDesignatedDpnListener Listener Closed");
  51     }
  52
  53     @Override
  54     protected void remove(InstanceIdentifier<DesignatedSwitchForTunnel> identifier, DesignatedSwitchForTunnel del) {
  55         dhcpExternalTunnelManager.removeFromLocalCache(BigInteger.valueOf(del.getDpId()), del.getTunnelRemoteIpAddress(), del.getElanInstanceName());
  56         dhcpExternalTunnelManager.unInstallDhcpFlowsForVms(del.getElanInstanceName(), del.getTunnelRemoteIpAddress(), DhcpServiceUtils.getListOfDpns(broker));
  57     }
  58
  59     @Override
  60     protected void update(InstanceIdentifier<DesignatedSwitchForTunnel> identifier, DesignatedSwitchForTunnel original,
  61             DesignatedSwitchForTunnel update) {
  62         BigInteger designatedDpnId = BigInteger.valueOf(update.getDpId());
  63         IpAddress tunnelRemoteIpAddress = update.getTunnelRemoteIpAddress();
  64         String elanInstanceName = update.getElanInstanceName();
  65         dhcpExternalTunnelManager.removeFromLocalCache(BigInteger.valueOf(original.getDpId()), original.getTunnelRemoteIpAddress(), original.getElanInstanceName());
  66         dhcpExternalTunnelManager.updateLocalCache(designatedDpnId, tunnelRemoteIpAddress, elanInstanceName);
  67 /*        List<BigInteger> elanDpns = DhcpServiceUtils.getDpnsForElan(elanInstanceName, broker);
  68         if (elanDpns == null || elanDpns.isEmpty()) {
  69             dhcpExternalTunnelManager.installRemoteMcastMac(designatedDpnId, tunnelRemoteIpAddress, elanInstanceName);
  70         }*/
  71     }
  72
  73     @Override
  74     protected void add(InstanceIdentifier<DesignatedSwitchForTunnel> identifier, DesignatedSwitchForTunnel add) {
  75         BigInteger designatedDpnId = BigInteger.valueOf(add.getDpId());
  76         IpAddress tunnelRemoteIpAddress = add.getTunnelRemoteIpAddress();
  77         String elanInstanceName = add.getElanInstanceName();
  78         dhcpExternalTunnelManager.updateLocalCache(designatedDpnId, tunnelRemoteIpAddress, elanInstanceName);
  79 /*        List<BigInteger> elanDpns = DhcpServiceUtils.getDpnsForElan(elanInstanceName, broker);
  80         if (elanDpns == null || elanDpns.isEmpty()) {
  81             dhcpExternalTunnelManager.installRemoteMcastMac(designatedDpnId, tunnelRemoteIpAddress, elanInstanceName);
  82         }*/
  83     }
  84
  85     @Override
  86     protected InstanceIdentifier<DesignatedSwitchForTunnel> getWildCardPath() {
  87         return InstanceIdentifier.create(DesignatedSwitchesForExternalTunnels.class).child(DesignatedSwitchForTunnel.class);
  88     }
  89
  90     @Override
  91     protected ClusteredDataChangeListener getDataChangeListener() {
  92         return DhcpDesignatedDpnListener.this;
  93     }
  94
  95     @Override
  96     protected DataChangeScope getDataChangeScope() {
  97         return AsyncDataBroker.DataChangeScope.SUBTREE;
  98     }
  99 }