neutron-vpp-mapper/src/main/java/org/opendaylight/controller/config/yang/config/neutron_vpp_mapper/impl/NeutronVppMapperInstance.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.neutron_vpp_mapper.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.groupbasedpolicy.neutron.vpp.mapper.NeutronVppMapper;
  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 NeutronVppMapperInstance implements ClusterSingletonService, AutoCloseable {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(NeutronVppMapperInstance.class);
  27
  28     private static final ServiceGroupIdentifier IDENTIFIER =
  29             ServiceGroupIdentifier.create(GroupbasedpolicyInstance.GBP_SERVICE_GROUP_IDENTIFIER);
  30     private final DataBroker dataBroker;
  31     private final String socketPath;
  32     private final String socketPrefix;
  33     private final String routingNode;
  34     private final ClusterSingletonServiceProvider clusterSingletonService;
  35     private ClusterSingletonServiceRegistration singletonServiceRegistration;
  36     private NeutronVppMapper mapper;
  37
  38     public NeutronVppMapperInstance(final DataBroker dataBroker,
  39                                     final String socketPath,
  40                                     final String socketPrefix,
  41                                     final String routingNode,
  42                                     final ClusterSingletonServiceProvider clusterSingletonService) {
  43         this.dataBroker = Preconditions.checkNotNull(dataBroker);
  44         this.socketPath = Preconditions.checkNotNull(socketPath);
  45         this.socketPrefix = Preconditions.checkNotNull(socketPrefix);
  46         this.routingNode = Preconditions.checkNotNull(routingNode);
  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         mapper = new NeutronVppMapper(socketPath, socketPrefix, routingNode, dataBroker);
  63     }
  64
  65     @Override
  66     public ListenableFuture<Void> closeServiceInstance() {
  67         LOG.info("Instance {} closed", this.getClass().getSimpleName());
  68         mapper.close();
  69         return Futures.immediateFuture(null);
  70     }
  71
  72     @Override
  73     public void close() throws Exception {
  74         LOG.info("Clustering provider closed for {}", this.getClass().getSimpleName());
  75         if (singletonServiceRegistration != null) {
  76             try {
  77                 singletonServiceRegistration.close();
  78             } catch (Exception e) {
  79                 LOG.warn("{} closed unexpectedly.", this.getClass().getSimpleName(), e.getMessage());
  80             }
  81             singletonServiceRegistration = null;
  82         }
  83     }
  84
  85     @Override
  86     public ServiceGroupIdentifier getIdentifier() {
  87         return IDENTIFIER;
  88     }
  89 }