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 java.util.Optional;
  11 import javax.annotation.PostConstruct;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  15 import org.opendaylight.mdsal.binding.api.DataBroker;
  16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  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     private 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         for (VpnInstanceNames vpnInstance : vpnIfaceRemoved.getVpnInstanceNames()) {
  63             String vpnName = vpnInstance.getVpnName();
  64             if (!vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4AndV6Subnets)
  65                 && !vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4Subnet)) {
  66                 continue;
  67             }
  68             try {
  69                 Optional<VpnToPseudoPortData> 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             } catch (InterruptedException | ExecutionException e) {
  75                 LOG.error("Error reading the ServiceChaining information for VPN {}", vpnName, e);
  76             }
  77             break;
  78         }
  79         vpnScHandler.unbindScfOnVpnInterface(vpnIfaceRemoved.key().getName());
  80     }
  81
  82     @Override
  83     protected void update(InstanceIdentifier<VpnInterface> key, VpnInterface dataObjectModificationBefore,
  84                           VpnInterface dataObjectModificationAfter) {
  85     }
  86
  87     @Override
  88     protected void add(InstanceIdentifier<VpnInterface> key, VpnInterface vpnIfaceAdded) {
  89         for (VpnInstanceNames vpnInstance : vpnIfaceAdded.getVpnInstanceNames()) {
  90             String vpnName = vpnInstance.getVpnName();
  91             if (!vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4AndV6Subnets)
  92                 && !vpnInstance.getAssociatedSubnetType().equals(AssociatedSubnetType.V4Subnet)) {
  93                 continue;
  94             }
  95             try {
  96                 Optional<VpnToPseudoPortData> optScfInfoForVpn = vpnScHandler.getScfInfoForVpn(vpnName);
  97                 if (!optScfInfoForVpn.isPresent()) {
  98                     LOG.trace("Vpn {} is not related to ServiceChaining. No further action", vpnName);
  99                     return;
 100                 }
 101                 vpnScHandler.bindScfOnVpnInterface(vpnIfaceAdded.key().getName(),
 102                         optScfInfoForVpn.get().getScfTag());
 103             } catch (InterruptedException | ExecutionException e) {
 104                 LOG.error("Error reading the ServiceChaining information for VPN {}", vpnName, e);
 105             }
 106         }
 107     }
 108
 109 }