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.messages.AddRoutedRpc;
  17 import org.opendaylight.controller.remote.rpc.messages.RemoveRoutedRpc;
  18 import org.opendaylight.controller.remote.rpc.utils.ActorUtil;
  19 import org.opendaylight.controller.sal.connector.api.RpcRouter;
  20 import org.opendaylight.controller.sal.core.api.RpcRoutingContext;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 import java.util.HashSet;
  26 import java.util.Map;
  27 import java.util.Set;
  28
  29 public class RoutedRpcListener implements RouteChangeListener<RpcRoutingContext, YangInstanceIdentifier>{
  30   private static final Logger LOG = LoggerFactory.getLogger(RoutedRpcListener.class);
  31   private final ActorRef rpcRegistry;
  32   private final String actorPath;
  33
  34   public RoutedRpcListener(ActorRef rpcRegistry, String actorPath) {
  35     Preconditions.checkNotNull(rpcRegistry, "rpc registry actor should not be null");
  36     Preconditions.checkNotNull(actorPath, "actor path of rpc broker on current node should not be null");
  37
  38     this.rpcRegistry = rpcRegistry;
  39     this.actorPath = actorPath;
  40   }
  41
  42   @Override
  43   public void onRouteChange(RouteChange<RpcRoutingContext, YangInstanceIdentifier> routeChange) {
  44     Map<RpcRoutingContext, Set<YangInstanceIdentifier>> announcements = routeChange.getAnnouncements();
  45     announce(getRouteIdentifiers(announcements));
  46
  47     Map<RpcRoutingContext, Set<YangInstanceIdentifier>> removals = routeChange.getRemovals();
  48     remove(getRouteIdentifiers(removals));
  49   }
  50
  51   /**
  52    *
  53    * @param announcements
  54    */
  55   private void announce(Set<RpcRouter.RouteIdentifier<?, ?, ?>> announcements) {
  56     LOG.debug("Announcing [{}]", announcements);
  57     AddRoutedRpc addRpcMsg = new AddRoutedRpc(announcements, actorPath);
  58     try {
  59       ActorUtil.executeLocalOperation(rpcRegistry, addRpcMsg, ActorUtil.LOCAL_ASK_DURATION, ActorUtil.LOCAL_AWAIT_DURATION);
  60     } catch (Exception e) {
  61       // Just logging it because Akka API throws this exception
  62       LOG.error(e.toString());
  63     }
  64   }
  65
  66   /**
  67    *
  68    * @param removals
  69    */
  70   private void remove(Set<RpcRouter.RouteIdentifier<?, ?, ?>> removals){
  71     LOG.debug("Removing [{}]", removals);
  72     RemoveRoutedRpc removeRpcMsg = new RemoveRoutedRpc(removals, actorPath);
  73     try {
  74       ActorUtil.executeLocalOperation(rpcRegistry, removeRpcMsg, ActorUtil.LOCAL_ASK_DURATION, ActorUtil.LOCAL_AWAIT_DURATION);
  75     } catch (Exception e) {
  76       // Just logging it because Akka API throws this exception
  77       LOG.error(e.toString());
  78     }
  79   }
  80
  81   /**
  82    *
  83    * @param changes
  84    * @return
  85    */
  86   private Set<RpcRouter.RouteIdentifier<?, ?, ?>> getRouteIdentifiers(Map<RpcRoutingContext, Set<YangInstanceIdentifier>> changes) {
  87     RouteIdentifierImpl routeId = null;
  88     Set<RpcRouter.RouteIdentifier<?, ?, ?>> routeIdSet = new HashSet<>();
  89
  90     for (RpcRoutingContext context : changes.keySet()){
  91       for (YangInstanceIdentifier instanceId : changes.get(context)){
  92         routeId = new RouteIdentifierImpl(null, context.getRpc(), instanceId);
  93         routeIdSet.add(routeId);
  94       }
  95     }
  96     return routeIdSet;
  97   }
  98 }