/*
* Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.controller.config.yang.config.ne.location.provider.cfg;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import org.opendaylight.controller.config.yang.config.groupbasedpolicy.GroupbasedpolicyInstance;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.groupbasedpolicy.ne.location.provider.NeLocationProvider;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class NeLocationProviderInstance implements ClusterSingletonService, AutoCloseable {
private static final Logger LOG = LoggerFactory.getLogger(NeLocationProviderInstance.class);
private static final ServiceGroupIdentifier IDENTIFIER =
ServiceGroupIdentifier.create(GroupbasedpolicyInstance.GBP_SERVICE_GROUP_IDENTIFIER);
private final DataBroker dataBroker;
private final ClusterSingletonServiceProvider clusterSingletonService;
private ClusterSingletonServiceRegistration singletonServiceRegistration;
private NeLocationProvider provider;
public NeLocationProviderInstance(final DataBroker dataBroker,
final ClusterSingletonServiceProvider clusterSingletonService) {
this.dataBroker = Preconditions.checkNotNull(dataBroker);
this.clusterSingletonService = Preconditions.checkNotNull(clusterSingletonService);
}
public void initialize() {
LOG.info("Clustering session initiated for {}", this.getClass().getSimpleName());
singletonServiceRegistration = clusterSingletonService.registerClusterSingletonService(this);
}
@Override
public void instantiateServiceInstance() {
LOG.info("Instantiating {}", this.getClass().getSimpleName());
provider = new NeLocationProvider(dataBroker);
}
@Override
public ListenableFuture<Void> closeServiceInstance() {
LOG.info("Instance {} closed", this.getClass().getSimpleName());
provider.close();
return Futures.immediateFuture(null);
}
@Override
public void close() throws Exception {
LOG.info("Clustering provider closed for {}", this.getClass().getSimpleName());
if (singletonServiceRegistration != null) {
try {
singletonServiceRegistration.close();
} catch (Exception e) {
LOG.warn("{} closed unexpectedly", this.getClass().getSimpleName(), e.getMessage());
}
singletonServiceRegistration = null;
}
}
@Override
public ServiceGroupIdentifier getIdentifier() {
return IDENTIFIER;
}
}