vpnservice/vpnmanager/vpnmanager-impl/src/main/java/org/opendaylight/netvirt/vpnmanager/VpnElanInterfaceChangeListener.java

   1 /*
   2  * Copyright (c) 2016 Hewlett Packard Enterprise, Co. 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
   9 package org.opendaylight.netvirt.vpnmanager;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  13 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  14 import org.opendaylight.netvirt.elanmanager.api.IElanService;
  15 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.vpn.interfaces.VpnInterface;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInterfaces;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public class VpnElanInterfaceChangeListener
  24     extends AsyncDataTreeChangeListenerBase<ElanInterface, VpnElanInterfaceChangeListener> {
  25     private static final Logger LOG = LoggerFactory.getLogger(VpnElanInterfaceChangeListener.class);
  26
  27     private final DataBroker broker;
  28     private final IElanService elanService;
  29
  30     public VpnElanInterfaceChangeListener(final DataBroker broker, final IElanService elanService) {
  31         super(ElanInterface.class, VpnElanInterfaceChangeListener.class);
  32         this.broker = broker;
  33         this.elanService = elanService;
  34     }
  35
  36     public void start() {
  37         LOG.info("{} start", getClass().getSimpleName());
  38         registerListener(LogicalDatastoreType.CONFIGURATION, broker);
  39     }
  40
  41     @Override
  42     protected InstanceIdentifier<ElanInterface> getWildCardPath() {
  43         return InstanceIdentifier.create(ElanInterfaces.class).child(ElanInterface.class);
  44     }
  45
  46     @Override
  47     protected void remove(InstanceIdentifier<ElanInterface> key, ElanInterface elanInterface) {
  48         String interfaceName = elanInterface.getName();
  49         if (!elanService.isExternalInterface(interfaceName)) {
  50             LOG.trace("Interface {} is not external. Ignoring interface removal", interfaceName);
  51             return;
  52         }
  53
  54         if (!VpnUtil.isVpnInterfaceConfigured(broker, interfaceName)) {
  55             LOG.trace("VpnInterface was never configured for {}. Ignoring interface removal", interfaceName);
  56             return;
  57         }
  58
  59         LOG.info("Removing VPN interface {}", interfaceName);
  60         InstanceIdentifier<VpnInterface> vpnInterfaceIdentifier = VpnUtil.getVpnInterfaceIdentifier(interfaceName);
  61         VpnUtil.delete(broker, LogicalDatastoreType.CONFIGURATION, vpnInterfaceIdentifier);
  62     }
  63
  64     @Override
  65     protected void update(InstanceIdentifier<ElanInterface> key, ElanInterface origElanInterface,
  66         ElanInterface updatedElanInterface) {
  67
  68     }
  69
  70     @Override
  71     protected void add(InstanceIdentifier<ElanInterface> key, ElanInterface elanInterface) {
  72         String interfaceName = elanInterface.getName();
  73         if (!elanService.isExternalInterface(interfaceName)) {
  74             LOG.trace("Interface {} is not external. Ignoring", interfaceName);
  75             return;
  76         }
  77
  78         Uuid networkId;
  79         try {
  80             networkId = new Uuid(elanInterface.getElanInstanceName());
  81         } catch (IllegalArgumentException e) {
  82             LOG.debug("ELAN instance {} is not Uuid", elanInterface.getElanInstanceName());
  83             return;
  84         }
  85
  86         Uuid vpnId = VpnUtil.getExternalNetworkVpnId(broker, networkId);
  87         if (vpnId == null) {
  88             LOG.trace("Network {} is not external or vpn-id missing. Ignoring", networkId.getValue());
  89             return;
  90         }
  91
  92         LOG.info("Adding VPN interface {} with VPN-id {}", interfaceName, vpnId.getValue());
  93         VpnInterface vpnInterface = VpnUtil.getVpnInterface(interfaceName, vpnId.getValue(), null, null, Boolean.FALSE);
  94         InstanceIdentifier<VpnInterface> vpnInterfaceIdentifier = VpnUtil.getVpnInterfaceIdentifier(interfaceName);
  95         VpnUtil.syncWrite(broker, LogicalDatastoreType.CONFIGURATION, vpnInterfaceIdentifier, vpnInterface);
  96     }
  97
  98     @Override
  99     protected VpnElanInterfaceChangeListener getDataTreeChangeListener() {
 100         return this;
 101     }
 102 }