openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/device/ItemLifeCycleRegistryImpl.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. 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.openflowplugin.impl.device;
  10
  11 import java.util.Collections;
  12 import java.util.Set;
  13 import java.util.concurrent.ConcurrentHashMap;
  14 import org.opendaylight.openflowplugin.api.openflow.registry.ItemLifeCycleRegistry;
  15 import org.opendaylight.openflowplugin.api.openflow.rpc.ItemLifeCycleSource;
  16 import org.opendaylight.yangtools.concepts.Registration;
  17
  18 /**
  19  * Default implementation.
  20  */
  21 public class ItemLifeCycleRegistryImpl implements ItemLifeCycleRegistry {
  22
  23     private final Set<ItemLifeCycleSource> registry;
  24
  25     public ItemLifeCycleRegistryImpl() {
  26         registry = Collections.newSetFromMap(new ConcurrentHashMap<ItemLifeCycleSource, Boolean>());
  27     }
  28
  29
  30     @Override
  31
  32     public Registration registerLifeCycleSource(final ItemLifeCycleSource lifeCycleSource) {
  33         registry.add(lifeCycleSource);
  34         return new Registration() {
  35             @Override
  36             public void close() throws Exception {
  37                 registry.remove(lifeCycleSource);
  38             }
  39         };
  40     }
  41
  42     @Override
  43     public void clear() {
  44         registry.clear();
  45     }
  46
  47     @Override
  48     public Iterable<ItemLifeCycleSource> getLifeCycleSources() {
  49         return Collections.unmodifiableCollection(registry);
  50     }
  51 }