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.cache.ElanInstanceCache;
  19 import org.opendaylight.netvirt.elan.evpn.utils.EvpnUtils;
  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     private final ElanInstanceCache elanInstanceCache;
  35
  36     @Inject
  37     public ElanMacEntryListener(final DataBroker broker, final EvpnUtils evpnUtils,
  38             final ElanInstanceCache elanInstanceCache) {
  39         this.broker = broker;
  40         this.evpnUtils = evpnUtils;
  41         this.elanInstanceCache = elanInstanceCache;
  42     }
  43
  44     @Override
  45     @PostConstruct
  46     public void init() {
  47         registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  48     }
  49
  50     @Override
  51     // Confusing with CacheElanInstanceListener.getWildcardPath but this method is implemented from an interface.
  52     @SuppressFBWarnings("NM_CONFUSING")
  53     protected InstanceIdentifier<MacEntry> getWildCardPath() {
  54         return InstanceIdentifier.builder(ElanForwardingTables.class)
  55                 .child(MacTable.class).child(MacEntry.class).build();
  56     }
  57
  58     @Override
  59     protected ElanMacEntryListener getDataTreeChangeListener() {
  60         return ElanMacEntryListener.this;
  61     }
  62
  63     @Override
  64     protected void add(InstanceIdentifier<MacEntry> instanceIdentifier, MacEntry macEntry) {
  65         LOG.info("ElanMacEntryListener : ADD macEntry {} ", instanceIdentifier);
  66         String elanName = instanceIdentifier.firstKeyOf(MacTable.class).getElanInstanceName();
  67         ElanInstance elanInfo = elanInstanceCache.get(elanName).orNull();
  68         if (EvpnUtils.getEvpnNameFromElan(elanInfo) == null) {
  69             LOG.trace("ElanMacEntryListener : Add evpnName is null for elan {} ", elanInfo);
  70             return;
  71         }
  72         evpnUtils.advertisePrefix(elanInfo, macEntry);
  73     }
  74
  75     @Override
  76     protected void remove(InstanceIdentifier<MacEntry> instanceIdentifier, MacEntry macEntry) {
  77         LOG.info("ElanMacEntryListener : remove macEntry {} ", instanceIdentifier);
  78         String elanName = instanceIdentifier.firstKeyOf(MacTable.class).getElanInstanceName();
  79         ElanInstance elanInfo = elanInstanceCache.get(elanName).orNull();
  80         if (EvpnUtils.getEvpnNameFromElan(elanInfo) == null) {
  81             LOG.trace("ElanMacEntryListener : Remove evpnName is null for elan {} ", elanInfo);
  82             return;
  83         }
  84         evpnUtils.withdrawPrefix(elanInfo, macEntry);
  85     }
  86
  87     @Override
  88     protected void update(InstanceIdentifier<MacEntry> instanceIdentifier, MacEntry macEntry, MacEntry t1) {
  89     }
  90 }