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.l2gw.utils.ElanL2GatewayMulticastUtils;
  20 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  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.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
  38     @Inject
  39     public ElanExtnTepListener(DataBroker dataBroker, ElanL2GatewayMulticastUtils elanL2GatewayMulticastUtils,
  40             JobCoordinator jobCoordinator) {
  41         super(ExternalTeps.class, ElanExtnTepListener.class);
  42         this.broker = dataBroker;
  43         this.elanL2GatewayMulticastUtils = elanL2GatewayMulticastUtils;
  44         this.jobCoordinator = jobCoordinator;
  45     }
  46
  47     @Override
  48     @PostConstruct
  49     public void init() {
  50         registerListener(LogicalDatastoreType.CONFIGURATION, broker);
  51     }
  52
  53     @Override
  54     protected InstanceIdentifier<ExternalTeps> getWildCardPath() {
  55         return InstanceIdentifier.create(ElanInstances.class).child(ElanInstance.class).child(ExternalTeps.class);
  56     }
  57
  58     @Override
  59     protected void add(InstanceIdentifier<ExternalTeps> instanceIdentifier, ExternalTeps tep) {
  60         LOG.trace("ExternalTeps add received {}", instanceIdentifier);
  61         updateElanRemoteBroadCastGroup(instanceIdentifier);
  62     }
  63
  64     @Override
  65     protected void update(InstanceIdentifier<ExternalTeps> instanceIdentifier, ExternalTeps tep, ExternalTeps t1) {
  66     }
  67
  68     @Override
  69     protected void remove(InstanceIdentifier<ExternalTeps> instanceIdentifier, ExternalTeps tep) {
  70         LOG.trace("ExternalTeps remove received {}", instanceIdentifier);
  71         updateElanRemoteBroadCastGroup(instanceIdentifier);
  72     }
  73
  74     @SuppressWarnings("checkstyle:IllegalCatch")
  75     private void updateElanRemoteBroadCastGroup(final InstanceIdentifier<ExternalTeps> iid) {
  76         String elanName = iid.firstKeyOf(ElanInstance.class).getElanInstanceName();
  77         ElanInstance elanInfo = ElanUtils.getElanInstanceByName(broker, elanName);
  78
  79         jobCoordinator.enqueueJob(elanName, () -> {
  80             SettableFuture<Void> ft = SettableFuture.create();
  81             try {
  82                 //TODO make the following method return ft
  83                 elanL2GatewayMulticastUtils.updateRemoteBroadcastGroupForAllElanDpns(elanInfo);
  84                 ft.set(null);
  85             } catch (Exception e) {
  86                 //since the above method does a sync write , if it fails there was no retry
  87                 //by setting the above mdsal exception in ft, and returning the ft makes sures that job is retried
  88                 ft.setException(e);
  89             }
  90             return Lists.newArrayList(ft);
  91         }, ElanConstants.JOB_MAX_RETRIES);
  92     }
  93
  94     @Override
  95     protected ElanExtnTepListener getDataTreeChangeListener() {
  96         return this;
  97     }
  98 }