bgp/topology-provider/src/main/java/org/opendaylight/bgpcep/bgp/topology/provider/config/TopologyReferenceSingletonServiceImpl.java

   1 /*
   2  * Copyright (c) 2016 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.bgpcep.bgp.topology.provider.config;
  10
  11 import static java.util.Objects.requireNonNull;
  12
  13 import com.google.common.util.concurrent.FluentFuture;
  14 import org.opendaylight.bgpcep.bgp.topology.provider.AbstractTopologyBuilder;
  15 import org.opendaylight.bgpcep.bgp.topology.provider.spi.BgpTopologyDeployer;
  16 import org.opendaylight.bgpcep.bgp.topology.provider.spi.TopologyReferenceSingletonService;
  17 import org.opendaylight.mdsal.common.api.CommitInfo;
  18 import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  20 import org.opendaylight.yangtools.concepts.Registration;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 final class TopologyReferenceSingletonServiceImpl implements TopologyReferenceSingletonService {
  26     private static final Logger LOG = LoggerFactory.getLogger(TopologyReferenceSingletonServiceImpl.class);
  27     private final AbstractTopologyBuilder<?> topologyBuilder;
  28     private final Registration serviceRegistration;
  29     private final Topology configuration;
  30
  31     TopologyReferenceSingletonServiceImpl(final AbstractTopologyBuilder<?> topologyBuilder,
  32             final BgpTopologyDeployer deployer, final Topology configuration) {
  33         this.configuration = requireNonNull(configuration);
  34         this.topologyBuilder = requireNonNull(topologyBuilder);
  35         this.serviceRegistration = deployer.registerService(this);
  36     }
  37
  38     @Override
  39     public InstanceIdentifier<Topology> getInstanceIdentifier() {
  40         return this.topologyBuilder.getInstanceIdentifier();
  41     }
  42
  43     @Override
  44     public void close() {
  45         this.serviceRegistration.close();
  46     }
  47
  48     @Override
  49     public void instantiateServiceInstance() {
  50         LOG.info("Topology Singleton Service {} instantiated", getIdentifier());
  51         this.topologyBuilder.start();
  52     }
  53
  54     @Override
  55     public FluentFuture<? extends CommitInfo> closeServiceInstance() {
  56         LOG.info("Close Topology Singleton Service {}", getIdentifier());
  57         return this.topologyBuilder.close();
  58     }
  59
  60     @Override
  61     public ServiceGroupIdentifier getIdentifier() {
  62         return ServiceGroupIdentifier.create(getInstanceIdentifier().firstKeyOf(Topology.class)
  63                 .getTopologyId().getValue());
  64     }
  65
  66     @Override
  67     public Topology getConfiguration() {
  68         return this.configuration;
  69     }
  70
  71 }