itm/itm-impl/src/main/java/org/opendaylight/genius/itm/itmdirecttunnels/listeners/InternalTunnelListener.java

   1 /*
   2  * Copyright (c) 2018 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.genius.itm.itmdirecttunnels.listeners;
  10
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import java.util.Collections;
  13 import java.util.List;
  14 import java.util.concurrent.Callable;
  15 import org.eclipse.jdt.annotation.NonNull;
  16 import org.opendaylight.genius.itm.globals.ITMConstants;
  17 import org.opendaylight.genius.itm.impl.ITMBatchingUtils;
  18 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  19 import org.opendaylight.mdsal.binding.api.DataBroker;
  20 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  21 import org.opendaylight.serviceutils.tools.listener.AbstractSyncDataTreeChangeListener;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.tunnel.list.InternalTunnel;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 /**
  28  * This class listens for Internal Tunnel in Configuration DS.
  29  * This deletes the entries incase of upgrade from non-ItmDirectTunnel way to ItmDirectTunnel.
  30  */
  31
  32 public class InternalTunnelListener extends AbstractSyncDataTreeChangeListener<InternalTunnel> {
  33     private static final Logger LOG = LoggerFactory.getLogger(InternalTunnelListener.class);
  34
  35     private final DataBroker dataBroker;
  36     private final JobCoordinator coordinator;
  37
  38     public InternalTunnelListener(final DataBroker dataBroker, final JobCoordinator coordinator) {
  39         super(dataBroker, LogicalDatastoreType.CONFIGURATION,
  40                 InstanceIdentifier.create(InternalTunnel.class));
  41         this.dataBroker = dataBroker;
  42         this.coordinator = coordinator;
  43     }
  44
  45     @Override
  46     public void remove(@NonNull InstanceIdentifier<InternalTunnel> key, @NonNull InternalTunnel interfaceOld) {
  47         LOG.debug("REMOVE hit in InternalTunnelListenerITM");
  48     }
  49
  50     @Override
  51     public void update(@NonNull InstanceIdentifier<InternalTunnel> key, @NonNull InternalTunnel internalTunnelOld,
  52                        @NonNull InternalTunnel internalTunnelNew) {
  53         LOG.debug("UPDATE hit in InternalTunnelListenerITM");
  54     }
  55
  56     @Override
  57     public void add(@NonNull InstanceIdentifier<InternalTunnel> key, @NonNull InternalTunnel internalTunnel) {
  58         LOG.debug("ADD of Interface {} received in InternalTunnelListenerITM", internalTunnel);
  59         RendererInternalTunnelDeleteWorker configWorker = new RendererInternalTunnelDeleteWorker(key, internalTunnel);
  60         coordinator.enqueueJob(getKeyForEnqueuing(internalTunnel), configWorker, ITMConstants.JOB_MAX_RETRIES);
  61     }
  62
  63     private String getKeyForEnqueuing(InternalTunnel internalTunnel) {
  64         return "tun" + internalTunnel.getSourceDPN() + internalTunnel.getDestinationDPN();
  65     }
  66
  67     private static class RendererInternalTunnelDeleteWorker implements Callable<List<? extends ListenableFuture<?>>> {
  68         final InstanceIdentifier<InternalTunnel> key;
  69         final InternalTunnel internalTunnel;
  70
  71         RendererInternalTunnelDeleteWorker(InstanceIdentifier<InternalTunnel> key,
  72                                                   InternalTunnel internalTunnelNew) {
  73             this.key = key;
  74             this.internalTunnel = internalTunnelNew;
  75         }
  76
  77         @Override
  78         public List<ListenableFuture<Void>> call() throws Exception {
  79             LOG.debug("Deleting Internal Tunnel Config for src Dpn {}, Dst Dpn {} as ITM direct tunnel is enabled",
  80                     internalTunnel.getSourceDPN(), internalTunnel.getDestinationDPN());
  81             ITMBatchingUtils.delete(key, ITMBatchingUtils.EntityType.DEFAULT_CONFIG);
  82             return Collections.emptyList();
  83         }
  84
  85         @Override
  86         public String toString() {
  87             return "RendererInternalTunnelDeleteWorker{"
  88                     + "key=" + key
  89                     + ", internalTunnel=" + internalTunnel + '\''
  90                     + '}';
  91         }
  92     }
  93 }