neutron-ovsdb/src/main/java/org/opendaylight/controller/config/yang/config/neutron_ovsdb/impl/NeutronOvsdbInstance.java

   1 /*
   2  * Copyright (c) 2015 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.neutron_ovsdb.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.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
  17 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.NeutronOvsdb;
  18 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
  19 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  20 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
  21 import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.EndpointService;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.ovsdb.params.rev160812.IntegrationBridgeSetting;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 public class NeutronOvsdbInstance implements ClusterSingletonService, AutoCloseable {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(NeutronOvsdbInstance.class);
  30
  31     private static final ServiceGroupIdentifier IDENTIFIER =
  32             ServiceGroupIdentifier.create(GroupbasedpolicyInstance.GBP_SERVICE_GROUP_IDENTIFIER);
  33     private final DataBroker dataBroker;
  34     private final IntegrationBridgeSetting settings;
  35     private final ClusterSingletonServiceProvider clusterSingletonService;
  36     private final RpcProviderRegistry rpcBroker;
  37     private ClusterSingletonServiceRegistration singletonServiceRegistration;
  38     private NeutronOvsdb neutronOvsdb;
  39
  40     public NeutronOvsdbInstance(final DataBroker dataBroker,
  41                                 final RpcProviderRegistry rpcBroker,
  42                                 final IntegrationBridgeSetting settings,
  43                                 final ClusterSingletonServiceProvider clusterSingletonService) {
  44         this.dataBroker = Preconditions.checkNotNull(dataBroker);
  45         this.rpcBroker = Preconditions.checkNotNull(rpcBroker);
  46         this.settings = Preconditions.checkNotNull(settings);
  47         this.clusterSingletonService = Preconditions.checkNotNull(clusterSingletonService);
  48     }
  49
  50     public void initialize() {
  51         LOG.info("Clustering session initiated for {}", this.getClass().getSimpleName());
  52         try {
  53             singletonServiceRegistration = clusterSingletonService.registerClusterSingletonService(this);
  54         } catch (Exception e) {
  55             LOG.warn("Exception thrown while registering cluster singleton service in {}", this.getClass(), e.getMessage());
  56         }
  57     }
  58
  59     @Override
  60     public void instantiateServiceInstance() {
  61         LOG.info("Instantiating {}", this.getClass().getSimpleName());
  62         final EndpointService epService = rpcBroker.getRpcService(EndpointService.class);
  63         neutronOvsdb = new NeutronOvsdb(dataBroker, epService, settings);
  64     }
  65
  66     @Override
  67     public ListenableFuture<Void> closeServiceInstance() {
  68         LOG.info("Instance {} closed", this.getClass().getSimpleName());
  69         try {
  70             neutronOvsdb.close();
  71         } catch (Exception e) {
  72             LOG.warn("Instance close failed to ... ", e);
  73         }
  74         return Futures.immediateFuture(null);
  75     }
  76
  77     @Override
  78     public void close() throws Exception {
  79         LOG.info("Clustering provider closed for {}", this.getClass().getSimpleName());
  80         if (singletonServiceRegistration != null) {
  81             try {
  82                 singletonServiceRegistration.close();
  83             } catch (Exception e) {
  84                 LOG.warn("{} closed unexpectedly", this.getClass().getSimpleName(), e);
  85             }
  86             singletonServiceRegistration = null;
  87         }
  88     }
  89
  90     @Override
  91     public ServiceGroupIdentifier getIdentifier() {
  92         return IDENTIFIER;
  93     }
  94 }