vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/netvirt/elan/evpn/listeners/EvpnElanInstanceListener.java

   1 /*
   2  * Copyright (c) 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
   9 package org.opendaylight.netvirt.elan.evpn.listeners;
  10
  11 import javax.annotation.PostConstruct;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  18 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  19 import org.opendaylight.netvirt.elan.evpn.utils.EvpnMacVrfUtils;
  20 import org.opendaylight.netvirt.elan.evpn.utils.EvpnUtils;
  21 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInstances;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.EvpnAugmentation;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29
  30
  31 @Singleton
  32 public class EvpnElanInstanceListener extends AsyncDataTreeChangeListenerBase<ElanInstance, EvpnElanInstanceListener> {
  33     private static final Logger LOG = LoggerFactory.getLogger(EvpnElanInstanceListener.class);
  34     private final DataBroker broker;
  35     private final EvpnUtils evpnUtils;
  36     private final EvpnMacVrfUtils evpnMacVrfUtils;
  37     private final IMdsalApiManager mdsalManager;
  38
  39
  40     @Inject
  41     public EvpnElanInstanceListener(final DataBroker dataBroker, final EvpnUtils evpnUtils,
  42                                     EvpnMacVrfUtils evpnMacVrfUtils, IMdsalApiManager mdsalApiManager) {
  43         super(ElanInstance.class, EvpnElanInstanceListener.class);
  44         this.broker = dataBroker;
  45         this.evpnUtils = evpnUtils;
  46         this.evpnMacVrfUtils = evpnMacVrfUtils;
  47         this.mdsalManager = mdsalApiManager;
  48     }
  49
  50     @Override
  51     @PostConstruct
  52     public void init() {
  53         registerListener(LogicalDatastoreType.CONFIGURATION, broker);
  54     }
  55
  56     @Override
  57     protected InstanceIdentifier<ElanInstance> getWildCardPath() {
  58         return InstanceIdentifier.builder(ElanInstances.class).child(ElanInstance.class).build();
  59     }
  60
  61     @Override
  62     protected void add(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance evpnAugmentation) {
  63     }
  64
  65     @Override
  66     protected void remove(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance evpnAugmentation) {
  67     }
  68
  69     @Override
  70     protected void update(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance original,
  71                           ElanInstance update) {
  72         String elanName = update.getElanInstanceName();
  73         ElanUtils.addElanInstanceIntoCache(elanName, update);
  74         if (evpnUtils.isWithdrawEvpnRT2Routes(original, update)) {
  75             evpnUtils.withdrawEvpnRT2Routes(original.getAugmentation(EvpnAugmentation.class), elanName);
  76             evpnMacVrfUtils.updateEvpnDmacFlows(original, false);
  77             evpnUtils.programEvpnL2vniDemuxTable(elanName,
  78                 (elan, interfaceName) -> evpnUtils.bindElanServiceToExternalTunnel(elanName, interfaceName),
  79                 (dpnId, flowEntity) -> mdsalManager.installFlow(dpnId, flowEntity));
  80         } else if (evpnUtils.isAdvertiseEvpnRT2Routes(original, update)) {
  81             evpnUtils.advertiseEvpnRT2Routes(update.getAugmentation(EvpnAugmentation.class), elanName);
  82             evpnMacVrfUtils.updateEvpnDmacFlows(update, true);
  83             evpnUtils.programEvpnL2vniDemuxTable(elanName,
  84                 (elan, interfaceName) -> evpnUtils.unbindElanServiceFromExternalTunnel(elanName, interfaceName),
  85                 (dpnId, flowEntity) -> mdsalManager.removeFlow(dpnId, flowEntity));
  86         }
  87     }
  88
  89     @Override
  90     protected EvpnElanInstanceListener getDataTreeChangeListener() {
  91         return this;
  92     }
  93
  94 }