cloud-servicechain/impl/src/main/java/org/opendaylight/netvirt/cloudservicechain/listeners/CloudScVpnInterfaceListener.java

   1 /*
   2  * Copyright © 2017 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.netvirt.cloudservicechain.listeners;
   9
  10 import com.google.common.base.Optional;
  11 import javax.annotation.PostConstruct;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  17 import org.opendaylight.netvirt.cloudservicechain.VPNServiceChainHandler;
  18 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.VpnInterfaces;
  19 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.vpn.interfaces.VpnInterface;
  20 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.vpn.interfaces.vpn._interface.VpnInstanceNames;
  21 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.vpn.interfaces.vpn._interface.VpnInstanceNames.AssociatedSubnetType;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.cloud.servicechain.state.rev160711.vpn.to.pseudo.port.list.VpnToPseudoPortData;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 @Singleton
  28 public class CloudScVpnInterfaceListener
  29         extends AsyncDataTreeChangeListenerBase<VpnInterface, CloudScVpnInterfaceListener> {
  30
  31     static final Logger LOG = LoggerFactory.getLogger(CloudScVpnInterfaceListener.class);
  32     private final DataBroker dataBroker;
  33     private final VPNServiceChainHandler vpnScHandler;
  34
  35     @Inject
  36     public CloudScVpnInterfaceListener(final DataBroker dataBroker, final VPNServiceChainHandler vpnScHandler) {
  37         super(VpnInterface.class, CloudScVpnInterfaceListener.class);
  38
  39         this.dataBroker = dataBroker;
  40         this.vpnScHandler = vpnScHandler;
  41     }
  42
  43     @Override
  44     @PostConstruct
  45     public void init() {
  46         LOG.info("{} init", getClass().getSimpleName());
  47         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  48     }
  49
  50     @Override
  51     protected CloudScVpnInterfaceListener getDataTreeChangeListener() {
  52         return CloudScVpnInterfaceListener.this;
  53     }
  54
  55     @Override
  56     protected InstanceIdentifier<VpnInterface> getWildCardPath() {
  57         return InstanceIdentifier.create(VpnInterfaces.class).child(VpnInterface.class);
  58     }
  59
  60     @Override
  61     protected void remove(InstanceIdentifier<VpnInterface> key, VpnInterface vpnIfaceRemoved) {
  62         Optional<VpnToPseudoPortData> optScfInfoForVpn = null;
  63         for (VpnInstanceNames vpnInstance : vpnIfaceRemoved.getVpnInstanceNames()) {
  64             String vpnName = vpnInstance.getVpnName();
  65             if (!vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4AndV6Subnets)
  66                 && !vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4Subnet)) {
  67                 continue;
  68             }
  69             optScfInfoForVpn = vpnScHandler.getScfInfoForVpn(vpnName);
  70             if (!optScfInfoForVpn.isPresent()) {
  71                 LOG.trace("Vpn {} is not related to ServiceChaining. No further action", vpnName);
  72                 return;
  73             }
  74             break;
  75         }
  76         vpnScHandler.unbindScfOnVpnInterface(vpnIfaceRemoved.getKey().getName());
  77     }
  78
  79     @Override
  80     protected void update(InstanceIdentifier<VpnInterface> key, VpnInterface dataObjectModificationBefore,
  81                           VpnInterface dataObjectModificationAfter) {
  82     }
  83
  84     @Override
  85     protected void add(InstanceIdentifier<VpnInterface> key, VpnInterface vpnIfaceAdded) {
  86         for (VpnInstanceNames vpnInstance : vpnIfaceAdded.getVpnInstanceNames()) {
  87             String vpnName = vpnInstance.getVpnName();
  88             if (!vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4AndV6Subnets)
  89                 && !vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4Subnet)) {
  90                 continue;
  91             }
  92             Optional<VpnToPseudoPortData> optScfInfoForVpn = vpnScHandler.getScfInfoForVpn(vpnName);
  93             if (!optScfInfoForVpn.isPresent()) {
  94                 LOG.trace("Vpn {} is not related to ServiceChaining. No further action", vpnName);
  95                 return;
  96             }
  97             vpnScHandler.bindScfOnVpnInterface(vpnIfaceAdded.getKey().getName(), optScfInfoForVpn.get().getScfTag());
  98         }
  99     }
 100
 101 }