opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/BasicRpcTestProvider.java

   1 /*
   2  * Copyright (c) 2017 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.controller.clustering.it.provider;
   9
  10 import com.google.common.util.concurrent.Futures;
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import javax.annotation.PreDestroy;
  13 import javax.inject.Inject;
  14 import javax.inject.Singleton;
  15 import org.opendaylight.mdsal.binding.api.RpcProviderService;
  16 import org.opendaylight.mdsal.singleton.api.ClusterSingletonService;
  17 import org.opendaylight.mdsal.singleton.api.ClusterSingletonServiceProvider;
  18 import org.opendaylight.mdsal.singleton.api.ServiceGroupIdentifier;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.controller.basic.rpc.test.rev160120.BasicGlobal;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.controller.basic.rpc.test.rev160120.BasicGlobalOutputBuilder;
  21 import org.opendaylight.yangtools.concepts.Registration;
  22 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  23 import org.osgi.service.component.annotations.Activate;
  24 import org.osgi.service.component.annotations.Component;
  25 import org.osgi.service.component.annotations.Deactivate;
  26 import org.osgi.service.component.annotations.Reference;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 @Singleton
  31 @Component(service = { })
  32 public final class BasicRpcTestProvider implements ClusterSingletonService {
  33     private static final Logger LOG = LoggerFactory.getLogger(BasicRpcTestProvider.class);
  34     private static final ServiceGroupIdentifier IDENTIFIER = new ServiceGroupIdentifier("Basic-rpc-test");
  35
  36     private final RpcProviderService rpcProviderRegistry;
  37     private final Registration singletonRegistration;
  38
  39     private Registration rpcRegistration = null;
  40
  41     @Inject
  42     @Activate
  43     public BasicRpcTestProvider(@Reference final RpcProviderService rpcProviderRegistry,
  44                                 @Reference final ClusterSingletonServiceProvider singletonService) {
  45         this.rpcProviderRegistry = rpcProviderRegistry;
  46         singletonRegistration = singletonService.registerClusterSingletonService(this);
  47     }
  48
  49     @PreDestroy
  50     @Deactivate
  51     public void close() {
  52         singletonRegistration.close();
  53     }
  54
  55     @Override
  56     public void instantiateServiceInstance() {
  57         LOG.info("Basic testing rpc registered as global");
  58         rpcRegistration = rpcProviderRegistry.registerRpcImplementation((BasicGlobal) input -> {
  59             LOG.info("Basic test global rpc invoked");
  60             return RpcResultBuilder.success(new BasicGlobalOutputBuilder().build()).buildFuture();
  61         });
  62     }
  63
  64     @Override
  65     public ListenableFuture<Void> closeServiceInstance() {
  66         rpcRegistration.close();
  67         rpcRegistration = null;
  68
  69         return Futures.immediateFuture(null);
  70     }
  71
  72     @Override
  73     public ServiceGroupIdentifier getIdentifier() {
  74         return IDENTIFIER;
  75     }
  76 }