elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/evpn/listeners/ElanMacEntryListener.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
   9 package org.opendaylight.netvirt.elan.evpn.listeners;
  10
  11 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  12 import javax.annotation.PostConstruct;
  13 import javax.inject.Inject;
  14 import javax.inject.Singleton;
  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.netvirt.elan.evpn.utils.EvpnUtils;
  19 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanForwardingTables;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.forwarding.tables.MacTable;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 @Singleton
  29 public class ElanMacEntryListener extends AsyncDataTreeChangeListenerBase<MacEntry, ElanMacEntryListener> {
  30
  31     private static final Logger LOG = LoggerFactory.getLogger(ElanMacEntryListener.class);
  32     private final DataBroker broker;
  33     private final EvpnUtils evpnUtils;
  34
  35     @Inject
  36     public ElanMacEntryListener(final DataBroker broker, final EvpnUtils evpnUtils) {
  37         this.broker = broker;
  38         this.evpnUtils = evpnUtils;
  39     }
  40
  41     @Override
  42     @PostConstruct
  43     public void init() {
  44         registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  45     }
  46
  47     @Override
  48     // Confusing with CacheElanInstanceListener.getWildcardPath but this method is implemented from an interface.
  49     @SuppressFBWarnings("NM_CONFUSING")
  50     protected InstanceIdentifier<MacEntry> getWildCardPath() {
  51         return InstanceIdentifier.builder(ElanForwardingTables.class)
  52                 .child(MacTable.class).child(MacEntry.class).build();
  53     }
  54
  55     @Override
  56     protected ElanMacEntryListener getDataTreeChangeListener() {
  57         return ElanMacEntryListener.this;
  58     }
  59
  60     @Override
  61     protected void add(InstanceIdentifier<MacEntry> instanceIdentifier, MacEntry macEntry) {
  62         LOG.info("ElanMacEntryListener : ADD macEntry {} ", instanceIdentifier);
  63         String elanName = instanceIdentifier.firstKeyOf(MacTable.class).getElanInstanceName();
  64         ElanInstance elanInfo = ElanUtils.getElanInstanceByName(broker, elanName);
  65         if (EvpnUtils.getEvpnNameFromElan(elanInfo) == null) {
  66             LOG.trace("ElanMacEntryListener : Add evpnName is null for elan {} ", elanInfo);
  67             return;
  68         }
  69         evpnUtils.advertisePrefix(elanInfo, macEntry);
  70     }
  71
  72     @Override
  73     protected void remove(InstanceIdentifier<MacEntry> instanceIdentifier, MacEntry macEntry) {
  74         LOG.info("ElanMacEntryListener : remove macEntry {} ", instanceIdentifier);
  75         String elanName = instanceIdentifier.firstKeyOf(MacTable.class).getElanInstanceName();
  76         ElanInstance elanInfo = ElanUtils.getElanInstanceByName(broker, elanName);
  77         if (EvpnUtils.getEvpnNameFromElan(elanInfo) == null) {
  78             LOG.trace("ElanMacEntryListener : Remove evpnName is null for elan {} ", elanInfo);
  79             return;
  80         }
  81         evpnUtils.withdrawPrefix(elanInfo, macEntry);
  82     }
  83
  84     @Override
  85     protected void update(InstanceIdentifier<MacEntry> instanceIdentifier, MacEntry macEntry, MacEntry t1) {
  86     }
  87 }