Bug 6911 - RPC support in singleton

[netconf.git] / netconf / netconf-topology-singleton / src / main / java / org / opendaylight / netconf / topology / singleton / impl / ProxyDOMRpcService.java

diff --git a/netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/ProxyDOMRpcService.java b/netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/ProxyDOMRpcService.java
index c1c843014b00e395ac8697d77080b958dfbea9fe..c4ee7a7ea197a5be4e3994dcb1bd230225af8538 100644 (file)
--- a/netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/ProxyDOMRpcService.java
+++ b/netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/ProxyDOMRpcService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
+ * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
@@ -8,30 +8,121 @@
 
 package org.opendaylight.netconf.topology.singleton.impl;
 
+import akka.actor.ActorRef;
+import akka.actor.ActorSystem;
+import akka.dispatch.OnComplete;
+import akka.pattern.Patterns;
+import com.google.common.base.Function;
 import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.SettableFuture;
+import java.util.Collection;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import org.opendaylight.controller.md.sal.dom.api.DOMRpcAvailabilityListener;
 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
+import org.opendaylight.controller.md.sal.dom.spi.DefaultDOMRpcResult;
+import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
+import org.opendaylight.netconf.topology.singleton.impl.utils.ClusteringRpcException;
+import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologyUtils;
+import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
+import org.opendaylight.netconf.topology.singleton.messages.SchemaPathMessage;
+import org.opendaylight.netconf.topology.singleton.messages.rpc.InvokeRpcMessage;
+import org.opendaylight.netconf.topology.singleton.messages.rpc.InvokeRpcMessageReply;
+import org.opendaylight.netconf.topology.singleton.messages.transactions.EmptyResultResponse;
 import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.common.RpcError;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import scala.concurrent.Future;
 
 public class ProxyDOMRpcService implements DOMRpcService {
 
+    private static final Logger LOG = LoggerFactory.getLogger(NetconfTopologyManager.class);
+
+    private final ActorRef masterActorRef;
+    private final ActorSystem actorSystem;
+    private final RemoteDeviceId id;
+
+    public ProxyDOMRpcService(final ActorSystem actorSystem, final ActorRef masterActorRef,
+                              final RemoteDeviceId remoteDeviceId) {
+        this.actorSystem = actorSystem;
+        this.masterActorRef = masterActorRef;
+        id = remoteDeviceId;
+    }
+
     @Nonnull
     @Override
     public CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(@Nonnull final SchemaPath type,
                                                                   @Nullable final NormalizedNode<?, ?> input) {
-        throw new UnsupportedOperationException("InvokeRpc: DOMRpc service not working in cluster.");
+        LOG.trace("{}: Rpc operation invoked with schema type: {} and node: {}.", id, type, input);
+
+        final NormalizedNodeMessage normalizedNodeMessage =
+                new NormalizedNodeMessage(YangInstanceIdentifier.EMPTY, input);
+        final Future<Object> scalaFuture =
+                Patterns.ask(masterActorRef,
+                        new InvokeRpcMessage(new SchemaPathMessage(type), normalizedNodeMessage),
+                        NetconfTopologyUtils.TIMEOUT);
+
+        final SettableFuture<DOMRpcResult> settableFuture = SettableFuture.create();
+
+        final CheckedFuture<DOMRpcResult, DOMRpcException> checkedFuture = Futures.makeChecked(settableFuture,
+                new Function<Exception, DOMRpcException>() {
+
+            @Nullable
+            @Override
+            public DOMRpcException apply(@Nullable final Exception exception) {
+                return new ClusteringRpcException(id + ": Exception during remote rpc invocation.",
+                        exception);
+            }
+        });
+
+        scalaFuture.onComplete(new OnComplete<Object>() {
+            @Override
+            public void onComplete(final Throwable failure, final Object success) throws Throwable {
+                if (failure != null) {
+                    settableFuture.setException(failure);
+                    return;
+                }
+                if (success instanceof Throwable) {
+                    settableFuture.setException((Throwable) success);
+                    return;
+                }
+                if (success instanceof EmptyResultResponse || success == null) {
+                    settableFuture.set(null);
+                    return;
+                }
+                final Collection<RpcError> errors = ((InvokeRpcMessageReply) success).getRpcErrors();
+                final NormalizedNodeMessage normalizedNodeMessageResult =
+                        ((InvokeRpcMessageReply) success).getNormalizedNodeMessage();
+                final DOMRpcResult result;
+                if (normalizedNodeMessageResult == null ){
+                    result = new DefaultDOMRpcResult(errors);
+                } else {
+                    if (errors == null) {
+                        result = new DefaultDOMRpcResult(normalizedNodeMessageResult.getNode());
+                    } else {
+                        result = new DefaultDOMRpcResult(normalizedNodeMessageResult.getNode(), errors);
+                    }
+                }
+                settableFuture.set(result);
+            }
+        }, actorSystem.dispatcher());
+
+        return checkedFuture;
+
     }
 
     @Nonnull
     @Override
     public <T extends DOMRpcAvailabilityListener> ListenerRegistration<T> registerRpcListener(
             @Nonnull final T listener) {
+        // NOOP, only proxy
         throw new UnsupportedOperationException("RegisterRpcListener: DOMRpc service not working in cluster.");
     }
 }