elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanExtnTepListener.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 package org.opendaylight.netvirt.elan.internal;
   9
  10 import com.google.common.collect.Lists;
  11 import com.google.common.util.concurrent.SettableFuture;
  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.infrautils.jobcoordinator.JobCoordinator;
  19 import org.opendaylight.netvirt.elan.cache.ElanInstanceCache;
  20 import org.opendaylight.netvirt.elan.l2gw.utils.ElanL2GatewayMulticastUtils;
  21 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  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.elan.instances.ElanInstance;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.elan.instance.ExternalTeps;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 @Singleton
  30 public class ElanExtnTepListener extends AsyncDataTreeChangeListenerBase<ExternalTeps, ElanExtnTepListener> {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(ElanExtnTepListener.class);
  33
  34     private final DataBroker broker;
  35     private final ElanL2GatewayMulticastUtils elanL2GatewayMulticastUtils;
  36     private final JobCoordinator jobCoordinator;
  37     private final ElanInstanceCache elanInstanceCache;
  38
  39     @Inject
  40     public ElanExtnTepListener(DataBroker dataBroker, ElanL2GatewayMulticastUtils elanL2GatewayMulticastUtils,
  41             JobCoordinator jobCoordinator, ElanInstanceCache elanInstanceCache) {
  42         super(ExternalTeps.class, ElanExtnTepListener.class);
  43         this.broker = dataBroker;
  44         this.elanL2GatewayMulticastUtils = elanL2GatewayMulticastUtils;
  45         this.jobCoordinator = jobCoordinator;
  46         this.elanInstanceCache = elanInstanceCache;
  47     }
  48
  49     @Override
  50     @PostConstruct
  51     public void init() {
  52         registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  53     }
  54
  55     @Override
  56     public InstanceIdentifier<ExternalTeps> getWildCardPath() {
  57         return InstanceIdentifier.create(ElanInstances.class).child(ElanInstance.class).child(ExternalTeps.class);
  58     }
  59
  60     @Override
  61     protected void add(InstanceIdentifier<ExternalTeps> instanceIdentifier, ExternalTeps tep) {
  62         LOG.trace("ExternalTeps add received {}", instanceIdentifier);
  63         updateElanRemoteBroadCastGroup(instanceIdentifier);
  64     }
  65
  66     @Override
  67     protected void update(InstanceIdentifier<ExternalTeps> instanceIdentifier, ExternalTeps tep, ExternalTeps t1) {
  68     }
  69
  70     @Override
  71     protected void remove(InstanceIdentifier<ExternalTeps> instanceIdentifier, ExternalTeps tep) {
  72         LOG.trace("ExternalTeps remove received {}", instanceIdentifier);
  73         updateElanRemoteBroadCastGroup(instanceIdentifier);
  74     }
  75
  76     @SuppressWarnings("checkstyle:IllegalCatch")
  77     private void updateElanRemoteBroadCastGroup(final InstanceIdentifier<ExternalTeps> iid) {
  78         String elanName = iid.firstKeyOf(ElanInstance.class).getElanInstanceName();
  79         ElanInstance elanInfo = elanInstanceCache.get(elanName).orNull();
  80         if (elanInfo == null) {
  81             return;
  82         }
  83
  84         jobCoordinator.enqueueJob(elanName, () -> {
  85             SettableFuture<Void> ft = SettableFuture.create();
  86             try {
  87                 //TODO make the following method return ft
  88                 elanL2GatewayMulticastUtils.updateRemoteBroadcastGroupForAllElanDpns(elanInfo);
  89                 ft.set(null);
  90             } catch (Exception e) {
  91                 //since the above method does a sync write , if it fails there was no retry
  92                 //by setting the above mdsal exception in ft, and returning the ft makes sures that job is retried
  93                 ft.setException(e);
  94             }
  95             return Lists.newArrayList(ft);
  96         }, ElanConstants.JOB_MAX_RETRIES);
  97     }
  98
  99     @Override
 100     protected ElanExtnTepListener getDataTreeChangeListener() {
 101         return this;
 102     }
 103 }