opendaylight/netconf/netconf-topology/src/main/java/org/opendaylight/netconf/topology/impl/NetconfTopologyManagerCallback.java

   1 /*
   2  * Copyright (c) 2015 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.netconf.topology.impl;
  10
  11 import akka.actor.ActorRef;
  12 import akka.actor.ActorSystem;
  13 import akka.actor.TypedActor;
  14 import com.google.common.util.concurrent.FutureCallback;
  15 import com.google.common.util.concurrent.Futures;
  16 import com.google.common.util.concurrent.ListenableFuture;
  17 import java.util.HashMap;
  18 import java.util.Map;
  19 import javax.annotation.Nonnull;
  20 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  21 import org.opendaylight.netconf.topology.NodeManager;
  22 import org.opendaylight.netconf.topology.NodeManagerCallback.NodeManagerCallbackFactory;
  23 import org.opendaylight.netconf.topology.TopologyManagerCallback;
  24 import org.opendaylight.netconf.topology.util.BaseNodeManager.BaseNodeManagerBuilder;
  25 import org.opendaylight.netconf.topology.util.NodeWriter;
  26 import org.opendaylight.netconf.topology.util.NoopRoleChangeStrategy;
  27 import org.opendaylight.netconf.topology.util.SalNodeWriter;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class NetconfTopologyManagerCallback implements TopologyManagerCallback {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(NetconfTopologyManagerCallback.class);
  36
  37     private final ActorSystem actorSystem;
  38     private boolean isMaster;
  39
  40     private final String topologyId;
  41     private final NodeWriter naSalNodeWriter;
  42     private final Map<NodeId, NodeManager> nodes = new HashMap<>();
  43     private final NodeManagerCallbackFactory nodeHandlerFactory;
  44
  45     public NetconfTopologyManagerCallback(final ActorSystem actorSystem,
  46                                           final DataBroker dataBroker,
  47                                           final String topologyId,
  48                                           final NodeManagerCallbackFactory nodeHandlerFactory) {
  49         this(actorSystem, topologyId, nodeHandlerFactory, new SalNodeWriter(dataBroker, topologyId));
  50     }
  51
  52     public NetconfTopologyManagerCallback(final ActorSystem actorSystem,
  53                                           final String topologyId,
  54                                           final NodeManagerCallbackFactory nodeHandlerFactory,
  55                                           final NodeWriter naSalNodeWriter) {
  56         this(actorSystem, topologyId, nodeHandlerFactory, naSalNodeWriter, false);
  57
  58     }
  59
  60     public NetconfTopologyManagerCallback(final ActorSystem actorSystem,
  61                                           final String topologyId,
  62                                           final NodeManagerCallbackFactory nodeHandlerFactory,
  63                                           final NodeWriter naSalNodeWriter,
  64                                           boolean isMaster) {
  65         this.actorSystem = actorSystem;
  66         this.topologyId = topologyId;
  67         this.nodeHandlerFactory = nodeHandlerFactory;
  68         this.naSalNodeWriter = naSalNodeWriter;
  69
  70         this.isMaster = isMaster;
  71     }
  72
  73     @Override
  74     public ListenableFuture<Node> onNodeCreated(final NodeId nodeId, final Node node) {
  75
  76         // if this node was already configured, and whole config was pushed again, reinit with update
  77         if (nodes.containsKey(nodeId)) {
  78             return onNodeUpdated(nodeId, node);
  79         }
  80
  81         // Init node admin
  82         final NodeManager naBaseNodeManager =
  83                 createNodeManager(nodeId);
  84         nodes.put(nodeId, naBaseNodeManager);
  85
  86         // only master should put initial state into datastore
  87         if (isMaster) {
  88             naSalNodeWriter.init(nodeId, naBaseNodeManager.getInitialState(nodeId, node));
  89         }
  90
  91         // trigger connect on this node
  92         return naBaseNodeManager.onNodeCreated(nodeId, node);
  93     }
  94
  95     @Override
  96     public ListenableFuture<Node> onNodeUpdated(final NodeId nodeId, final Node node) {
  97         // only master should put initial state into datastore
  98         if (isMaster) {
  99             naSalNodeWriter.init(nodeId, nodes.get(nodeId).getInitialState(nodeId, node));
 100         }
 101
 102         // Trigger onNodeUpdated only on this node
 103         return nodes.get(nodeId).onNodeUpdated(nodeId, node);
 104     }
 105
 106     @Override
 107     public ListenableFuture<Void> onNodeDeleted(final NodeId nodeId) {
 108         // Trigger delete only on this node
 109         final ListenableFuture<Void> future = nodes.get(nodeId).onNodeDeleted(nodeId);
 110         Futures.addCallback(future, new FutureCallback<Void>() {
 111             @Override
 112             public void onSuccess(Void result) {
 113                 // remove proxy from node list and stop the actor
 114                 LOG.debug("Stopping node actor for node : {}", nodeId.getValue());
 115                 final NodeManager remove = nodes.remove(nodeId);
 116                 TypedActor.get(actorSystem).stop(remove);
 117             }
 118
 119             @Override
 120             public void onFailure(Throwable t) {
 121                 // NOOP will be handled on higher level
 122             }
 123         });
 124         return future;
 125     }
 126
 127     @Nonnull
 128     @Override
 129     public ListenableFuture<Node> getCurrentStatusForNode(@Nonnull NodeId nodeId) {
 130         if (!nodes.containsKey(nodeId)) {
 131             nodes.put(nodeId, createNodeManager(nodeId));
 132         }
 133         return nodes.get(nodeId).getCurrentStatusForNode(nodeId);
 134     }
 135
 136     @Override
 137     public void onRoleChanged(RoleChangeDTO roleChangeDTO) {
 138         isMaster = roleChangeDTO.isOwner();
 139         // our post-election logic
 140     }
 141
 142     private NodeManager createNodeManager(NodeId nodeId) {
 143         return new BaseNodeManagerBuilder().setNodeId(nodeId.getValue())
 144                 .setActorContext(TypedActor.context())
 145                 .setDelegateFactory(nodeHandlerFactory)
 146                 .setRoleChangeStrategy(new NoopRoleChangeStrategy())
 147                 .setTopologyId(topologyId)
 148                 .build();
 149     }
 150
 151     @Override
 152     public void onReceive(Object o, ActorRef actorRef) {
 153
 154     }
 155
 156     @Nonnull
 157     @Override
 158     public Node getInitialState(@Nonnull NodeId nodeId, @Nonnull Node configNode) {
 159         return nodes.get(nodeId).getInitialState(nodeId, configNode);
 160     }
 161
 162     @Nonnull
 163     @Override
 164     public Node getFailedState(@Nonnull NodeId nodeId, @Nonnull Node configNode) {
 165         return nodes.get(nodeId).getFailedState(nodeId, configNode);
 166     }
 167 }