sxp-integration/sxp-ise-adapter/src/main/java/org/opendaylight/controller/config/yang/config/groupbasedpolicy/sxp_integration/sxp_ise_adapter/SxpIseAdapterProviderInstance.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.groupbasedpolicy.sxp_integration.sxp_ise_adapter;
  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.BindingAwareBroker;
  17 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.spi.SxpEpProviderProvider;
  18 import org.opendaylight.groupbasedpolicy.sxp_ise_adapter.impl.GbpIseAdapterProvider;
  19 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
  20 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  21 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
  22 import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 public class SxpIseAdapterProviderInstance implements ClusterSingletonService, AutoCloseable {
  27
  28     private static final Logger LOG = LoggerFactory.getLogger(SxpIseAdapterProviderInstance.class);
  29
  30     private static final ServiceGroupIdentifier IDENTIFIER =
  31             ServiceGroupIdentifier.create(GroupbasedpolicyInstance.GBP_SERVICE_GROUP_IDENTIFIER);
  32
  33     private final DataBroker dataBroker;
  34     private final BindingAwareBroker bindingAwareBroker;
  35     private final ClusterSingletonServiceProvider clusterSingletonService;
  36     private final SxpEpProviderProvider sxpEpProvider;
  37     private ClusterSingletonServiceRegistration singletonServiceRegistration;
  38     private GbpIseAdapterProvider iseAdapterProvider;
  39
  40     public SxpIseAdapterProviderInstance(final DataBroker dataBroker,
  41                                          final BindingAwareBroker bindingAwareBroker,
  42                                          final ClusterSingletonServiceProvider clusterSingletonService,
  43                                          final SxpEpProviderProvider sxpEpProvider) {
  44         this.dataBroker = Preconditions.checkNotNull(dataBroker);
  45         this.bindingAwareBroker = Preconditions.checkNotNull(bindingAwareBroker);
  46         this.clusterSingletonService = Preconditions.checkNotNull(clusterSingletonService);
  47         this.sxpEpProvider = Preconditions.checkNotNull(sxpEpProvider);
  48     }
  49
  50     public void initialize() {
  51         LOG.info("Clustering session initiated for {}", this.getClass().getSimpleName());
  52         singletonServiceRegistration = clusterSingletonService.registerClusterSingletonService(this);
  53     }
  54
  55     @Override
  56     public void instantiateServiceInstance() {
  57         LOG.info("Instantiating {}", this.getClass().getSimpleName());
  58         iseAdapterProvider = new GbpIseAdapterProvider(dataBroker, bindingAwareBroker, sxpEpProvider);
  59     }
  60
  61     @Override
  62     public ListenableFuture<Void> closeServiceInstance() {
  63         LOG.info("Instance {} closed", this.getClass().getSimpleName());
  64         try {
  65             iseAdapterProvider.close();
  66         } catch (Exception e) {
  67             LOG.warn("iseAdapterProvider closing failed: {}", e.getMessage());
  68         }
  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. Cause: {}", e.getMessage());
  80             }
  81             singletonServiceRegistration = null;
  82         }
  83     }
  84
  85     @Override
  86     public ServiceGroupIdentifier getIdentifier() {
  87         return IDENTIFIER;
  88     }
  89 }