opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/RoutedRpcListener.java

   1 /*
   2  * Copyright (c) 2014 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.remote.rpc;
  10
  11
  12 import akka.actor.ActorRef;
  13 import com.google.common.base.Preconditions;
  14 import org.opendaylight.controller.md.sal.common.api.routing.RouteChange;
  15 import org.opendaylight.controller.md.sal.common.api.routing.RouteChangeListener;
  16 import org.opendaylight.controller.remote.rpc.registry.RpcRegistry;
  17 import org.opendaylight.controller.sal.connector.api.RpcRouter;
  18 import org.opendaylight.controller.sal.core.api.RpcRoutingContext;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 import java.util.ArrayList;
  24 import java.util.HashSet;
  25 import java.util.Map;
  26 import java.util.Set;
  27
  28 public class RoutedRpcListener implements RouteChangeListener<RpcRoutingContext, YangInstanceIdentifier>{
  29   private static final Logger LOG = LoggerFactory.getLogger(RoutedRpcListener.class);
  30   private final ActorRef rpcRegistry;
  31
  32   public RoutedRpcListener(ActorRef rpcRegistry) {
  33     Preconditions.checkNotNull(rpcRegistry, "rpc registry actor should not be null");
  34
  35     this.rpcRegistry = rpcRegistry;
  36   }
  37
  38   @Override
  39   public void onRouteChange(RouteChange<RpcRoutingContext, YangInstanceIdentifier> routeChange) {
  40     Map<RpcRoutingContext, Set<YangInstanceIdentifier>> announcements = routeChange.getAnnouncements();
  41     if(announcements != null && announcements.size() > 0){
  42       announce(getRouteIdentifiers(announcements));
  43     }
  44
  45     Map<RpcRoutingContext, Set<YangInstanceIdentifier>> removals = routeChange.getRemovals();
  46     if(removals != null && removals.size() > 0 ) {
  47       remove(getRouteIdentifiers(removals));
  48     }
  49   }
  50
  51   /**
  52    *
  53    * @param announcements
  54    */
  55   private void announce(Set<RpcRouter.RouteIdentifier<?, ?, ?>> announcements) {
  56     LOG.debug("Announcing [{}]", announcements);
  57     RpcRegistry.Messages.AddOrUpdateRoutes addRpcMsg = new RpcRegistry.Messages.AddOrUpdateRoutes(new ArrayList<>(announcements));
  58     rpcRegistry.tell(addRpcMsg, ActorRef.noSender());
  59   }
  60
  61   /**
  62    *
  63    * @param removals
  64    */
  65   private void remove(Set<RpcRouter.RouteIdentifier<?, ?, ?>> removals){
  66     LOG.debug("Removing [{}]", removals);
  67     RpcRegistry.Messages.RemoveRoutes removeRpcMsg = new RpcRegistry.Messages.RemoveRoutes(new ArrayList<>(removals));
  68     rpcRegistry.tell(removeRpcMsg, ActorRef.noSender());
  69   }
  70
  71   /**
  72    *
  73    * @param changes
  74    * @return
  75    */
  76   private Set<RpcRouter.RouteIdentifier<?, ?, ?>> getRouteIdentifiers(Map<RpcRoutingContext, Set<YangInstanceIdentifier>> changes) {
  77     RouteIdentifierImpl routeId = null;
  78     Set<RpcRouter.RouteIdentifier<?, ?, ?>> routeIdSet = new HashSet<>();
  79
  80     for (RpcRoutingContext context : changes.keySet()){
  81       for (YangInstanceIdentifier instanceId : changes.get(context)){
  82         routeId = new RouteIdentifierImpl(null, context.getRpc(), instanceId);
  83         routeIdSet.add(routeId);
  84       }
  85     }
  86     return routeIdSet;
  87   }
  88 }