dhcpservice/dhcpservice-impl/src/main/java/org/opendaylight/vpnservice/dhcpservice/DhcpNeutronPortListener.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.vpnservice.neutronvpn.api.utils.NeutronUtils;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 public class DhcpNeutronPortListener extends AsyncClusteredDataChangeListenerBase<Port, DhcpNeutronPortListener> implements AutoCloseable {
  30
  31     private static final Logger LOG = LoggerFactory.getLogger(DhcpNeutronPortListener.class);
  32
  33     private ListenerRegistration<DataChangeListener> listenerRegistration;
  34     private DhcpExternalTunnelManager dhcpExternalTunnelManager;
  35     private DataBroker broker;
  36
  37     public DhcpNeutronPortListener(final DataBroker db, final DhcpExternalTunnelManager dhcpExternalTunnelManager) {
  38         super(Port.class, DhcpNeutronPortListener.class);
  39         this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
  40         this.broker = db;
  41     }
  42
  43     @Override
  44     protected InstanceIdentifier<Port> getWildCardPath() {
  45         return InstanceIdentifier.create(Neutron.class).child(Ports.class).child(Port.class);
  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 DhcpNeutronPortListener.", e);
  55             }
  56             listenerRegistration = null;
  57         }
  58         LOG.debug("DhcpNeutronPortListener Listener Closed");
  59     }
  60
  61     @Override
  62     protected void remove(InstanceIdentifier<Port> identifier, Port del) {
  63         LOG.trace("Port removed: {}", del);
  64         if(NeutronUtils.isPortVnicTypeNormal(del)) {
  65             return;
  66         }
  67         String macAddress = del.getMacAddress();
  68         Uuid networkId = del.getNetworkId();
  69         String segmentationId = DhcpServiceUtils.getSegmentationId(networkId, broker);
  70         if (segmentationId == null) {
  71             return;
  72         }
  73         List<BigInteger> listOfDpns = DhcpServiceUtils.getListOfDpns(broker);
  74         dhcpExternalTunnelManager.unInstallDhcpFlowsForVms(networkId.getValue(), listOfDpns, macAddress);
  75         dhcpExternalTunnelManager.removeVniMacToPortCache(new BigInteger(segmentationId), macAddress);
  76     }
  77
  78     @Override
  79     protected void update(InstanceIdentifier<Port> identifier, Port original, Port update) {
  80         LOG.trace("Port changed to {}", update);
  81     }
  82
  83     @Override
  84     protected void add(InstanceIdentifier<Port> identifier, Port add) {
  85         LOG.trace("Port added {}", add);
  86         if(NeutronUtils.isPortVnicTypeNormal(add)) {
  87             LOG.trace("Port is normal {}", add);
  88             return;
  89         }
  90         String macAddress = add.getMacAddress();
  91         Uuid networkId = add.getNetworkId();
  92         String segmentationId = DhcpServiceUtils.getSegmentationId(networkId, broker);
  93         if (segmentationId == null) {
  94             LOG.trace("segmentation id is null");
  95             return;
  96         }
  97         dhcpExternalTunnelManager.updateVniMacToPortCache(new BigInteger(segmentationId), macAddress, add);
  98     }
  99
 100     @Override
 101     protected ClusteredDataChangeListener getDataChangeListener() {
 102         return DhcpNeutronPortListener.this;
 103     }
 104
 105     @Override
 106     protected DataChangeScope getDataChangeScope() {
 107         return AsyncDataBroker.DataChangeScope.SUBTREE;
 108     }
 109 }