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 package org.opendaylight.bgpcep.bgp.topology.provider.config;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.util.concurrent.FluentFuture;
  13 import org.opendaylight.bgpcep.bgp.topology.provider.AbstractTopologyBuilder;
  14 import org.opendaylight.bgpcep.bgp.topology.provider.spi.BgpTopologyDeployer;
  15 import org.opendaylight.bgpcep.bgp.topology.provider.spi.TopologyReferenceSingletonService;
  16 import org.opendaylight.mdsal.common.api.CommitInfo;
  17 import org.opendaylight.mdsal.singleton.api.ServiceGroupIdentifier;
  18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  19 import org.opendaylight.yangtools.concepts.Registration;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 final class TopologyReferenceSingletonServiceImpl implements TopologyReferenceSingletonService {
  25     private static final Logger LOG = LoggerFactory.getLogger(TopologyReferenceSingletonServiceImpl.class);
  26     private final AbstractTopologyBuilder<?> topologyBuilder;
  27     private final Registration serviceRegistration;
  28     private final Topology configuration;
  29
  30     TopologyReferenceSingletonServiceImpl(final AbstractTopologyBuilder<?> topologyBuilder,
  31             final BgpTopologyDeployer deployer, final Topology configuration) {
  32         this.configuration = requireNonNull(configuration);
  33         this.topologyBuilder = requireNonNull(topologyBuilder);
  34         serviceRegistration = deployer.registerService(this);
  35     }
  36
  37     @Override
  38     public InstanceIdentifier<Topology> getInstanceIdentifier() {
  39         return topologyBuilder.getInstanceIdentifier();
  40     }
  41
  42     @Override
  43     public void close() {
  44         serviceRegistration.close();
  45     }
  46
  47     @Override
  48     public void instantiateServiceInstance() {
  49         LOG.info("Topology Singleton Service {} instantiated", getIdentifier());
  50         topologyBuilder.start();
  51     }
  52
  53     @Override
  54     public FluentFuture<? extends CommitInfo> closeServiceInstance() {
  55         LOG.info("Close Topology Singleton Service {}", getIdentifier());
  56         return topologyBuilder.close();
  57     }
  58
  59     @Override
  60     public ServiceGroupIdentifier getIdentifier() {
  61         return new ServiceGroupIdentifier(
  62             getInstanceIdentifier().firstKeyOf(Topology.class).getTopologyId().getValue());
  63     }
  64
  65     @Override
  66     public Topology getConfiguration() {
  67         return configuration;
  68     }
  69
  70 }