domain-extensions/l2-l3/src/main/java/org/opendaylight/controller/config/yang/config/domain_extension/l2_l3/impl/L2L3DomainExtensionInstance.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.controller.config.yang.config.domain_extension.l2_l3.impl;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import org.opendaylight.controller.config.yang.config.groupbasedpolicy.GroupbasedpolicyInstance;
  15 import org.opendaylight.groupbasedpolicy.api.DomainSpecificRegistry;
  16 import org.opendaylight.groupbasedpolicy.domain_extension.l2_l3.L2L3NetworkDomainAugmentor;
  17 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
  18 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  19 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
  20 import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 public class L2L3DomainExtensionInstance implements ClusterSingletonService, AutoCloseable {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(L2L3DomainExtensionInstance.class);
  27
  28     private static final ServiceGroupIdentifier IDENTIFIER =
  29             ServiceGroupIdentifier.create(GroupbasedpolicyInstance.GBP_SERVICE_GROUP_IDENTIFIER);
  30     private final DomainSpecificRegistry domainSpecificRegistry;
  31     private ClusterSingletonServiceProvider clusterSingletonService;
  32     private ClusterSingletonServiceRegistration singletonServiceRegistration;
  33     private L2L3NetworkDomainAugmentor l2l3NetworkDomainAugmentor;
  34
  35     public L2L3DomainExtensionInstance(final DomainSpecificRegistry domainSpecificRegistry,
  36                                        final ClusterSingletonServiceProvider clusterSingletonService) {
  37         this.domainSpecificRegistry = Preconditions.checkNotNull(domainSpecificRegistry);
  38         this.clusterSingletonService = Preconditions.checkNotNull(clusterSingletonService);
  39     }
  40
  41     public void initialize() {
  42         LOG.info("Clustering session initiated for {}", this.getClass().getSimpleName());
  43         try {
  44             singletonServiceRegistration = clusterSingletonService.registerClusterSingletonService(this);
  45         }
  46         catch (Exception e) {
  47             LOG.warn("Exception while registering candidate ... ", e);
  48         }
  49     }
  50
  51     @Override
  52     public void instantiateServiceInstance() {
  53         LOG.info("Instantiating {}", this.getClass().getSimpleName());
  54         l2l3NetworkDomainAugmentor = new L2L3NetworkDomainAugmentor(domainSpecificRegistry.getNetworkDomainAugmentorRegistry());
  55     }
  56
  57     @Override
  58     public ListenableFuture<Void> closeServiceInstance() {
  59         LOG.info("Instance {} closed", this.getClass().getSimpleName());
  60         l2l3NetworkDomainAugmentor.close();
  61         return Futures.immediateFuture(null);
  62     }
  63
  64     @Override
  65     public void close() {
  66         LOG.info("Clustering provider closed for {}", this.getClass().getSimpleName());
  67         if (singletonServiceRegistration != null) {
  68             try {
  69                 singletonServiceRegistration.close();
  70             } catch (Exception e) {
  71                 LOG.warn("{} closed unexpectedly", this.getClass().getSimpleName(), e.getMessage());
  72             }
  73             singletonServiceRegistration = null;
  74         }
  75     }
  76
  77     @Override
  78     public ServiceGroupIdentifier getIdentifier() {
  79         return IDENTIFIER;
  80     }
  81 }