2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.mdsal.singleton.common.api;
11 import com.google.common.base.Preconditions;
12 import com.google.common.util.concurrent.ListenableFuture;
15 * Package protected help class represent a Delegator for {@link ClusterSingletonService}
16 * instance and {@link ClusterSingletonServiceRegistration} implementation.
17 * Close registration means remove {@link ClusterSingletonService} instance from internal
18 * ClusterSingletonServiceGroup list reference.
20 * Close {@link ClusterSingletonServiceRegistration} is prepared for a possible restart
21 * service or application in osgi container. Any another servicies from group can not be
24 class ClusterSingletonServiceRegistrationDelegator
25 implements ClusterSingletonServiceRegistration, ClusterSingletonService {
27 private final ClusterSingletonService service;
28 private final ClusterSingletonServiceGroup<?, ?, ?> group;
30 ClusterSingletonServiceRegistrationDelegator(final ClusterSingletonService service,
31 final ClusterSingletonServiceGroup<?, ?, ?> group) {
32 this.service = Preconditions.checkNotNull(service);
33 this.group = Preconditions.checkNotNull(group);
37 public void close() throws Exception {
38 group.unregisterService(this);
42 public void instantiateServiceInstance() {
43 service.instantiateServiceInstance();
47 public ListenableFuture<Void> closeServiceInstance() {
48 return service.closeServiceInstance();
52 public ServiceGroupIdentifier getIdentifier() {
53 return service.getIdentifier();
56 public String getServiceGroupIdentifier() {
57 return service.getIdentifier().getValue();