lockmanager/lockmanager-impl/src/main/java/org/opendaylight/genius/lockmanager/impl/LockListener.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.genius.lockmanager.impl;
   9
  10 import java.util.concurrent.CompletableFuture;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.genius.datastoreutils.AsyncClusteredDataTreeChangeListenerBase;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.lockmanager.rev160413.Locks;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.lockmanager.rev160413.locks.Lock;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 @Singleton
  24 public class LockListener extends AsyncClusteredDataTreeChangeListenerBase<Lock, LockListener>
  25         implements AutoCloseable {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(LockListener.class);
  28     private final LockManagerServiceImpl lockManager;
  29
  30     @Inject
  31     public LockListener(DataBroker broker, LockManagerServiceImpl lockManager) {
  32         super(Lock.class, LockListener.class);
  33         this.lockManager = lockManager;
  34         registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  35     }
  36
  37     @Override
  38     protected InstanceIdentifier<Lock> getWildCardPath() {
  39         return InstanceIdentifier.create(Locks.class).child(Lock.class);
  40     }
  41
  42     @Override
  43     protected void remove(InstanceIdentifier<Lock> key, Lock remove) {
  44         String lockName = remove.getLockName();
  45         LOG.debug("Received remove for lock {} : {}", lockName, remove);
  46         CompletableFuture<Void> lock = lockManager.getSynchronizerForLock(lockName);
  47         if (lock != null) {
  48             lock.complete(null);
  49         }
  50     }
  51
  52     @Override
  53     protected void update(InstanceIdentifier<Lock> key, Lock dataObjectModificationBefore,
  54             Lock dataObjectModificationAfter) {
  55     }
  56
  57     @Override
  58     protected void add(InstanceIdentifier<Lock> key, Lock add) {
  59         LOG.debug("Received add for lock {} : {}", add.getLockName(), add);
  60     }
  61
  62     @Override
  63     protected LockListener getDataTreeChangeListener() {
  64         return this;
  65     }
  66 }