+/*
+ * Copyright (c) 2014, 2017 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,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
package org.opendaylight.controller.remote.rpc;
-import static akka.pattern.Patterns.ask;
import akka.actor.ActorRef;
-import akka.dispatch.OnComplete;
-import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.JdkFutureAdapters;
-import com.google.common.util.concurrent.ListenableFuture;
-import com.google.common.util.concurrent.SettableFuture;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.concurrent.ExecutionException;
-import org.opendaylight.controller.cluster.datastore.node.utils.serialization.NormalizedNodeSerializer;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcIdentifier;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementation;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementationNotAvailableException;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
-import org.opendaylight.controller.md.sal.dom.spi.DefaultDOMRpcResult;
-import org.opendaylight.controller.remote.rpc.messages.InvokeRpc;
-import org.opendaylight.controller.remote.rpc.messages.RpcResponse;
-import org.opendaylight.yangtools.yang.common.RpcError;
-import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
-import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
+import akka.pattern.Patterns;
+import akka.util.Timeout;
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.FluentFuture;
+import org.opendaylight.controller.remote.rpc.messages.ExecuteRpc;
+import org.opendaylight.mdsal.dom.api.DOMRpcIdentifier;
+import org.opendaylight.mdsal.dom.api.DOMRpcImplementation;
+import org.opendaylight.mdsal.dom.api.DOMRpcResult;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import scala.concurrent.ExecutionContext;
-
-public class RemoteRpcImplementation implements DOMRpcImplementation {
- private static final Logger LOG = LoggerFactory.getLogger(RemoteRpcImplementation.class);
- private final ActorRef rpcBroker;
- private final RemoteRpcProviderConfig config;
- public RemoteRpcImplementation(final ActorRef rpcBroker, final RemoteRpcProviderConfig config) {
- this.rpcBroker = rpcBroker;
- this.config = config;
+/**
+ * A {@link DOMRpcImplementation} which routes invocation requests to a remote invoker actor.
+ *
+ * @author Robert Varga
+ */
+final class RemoteRpcImplementation implements DOMRpcImplementation {
+ // 0 for local, 1 for binding, 2 for remote
+ private static final long COST = 2;
+
+ private final ActorRef remoteInvoker;
+ private final Timeout askDuration;
+
+ RemoteRpcImplementation(final ActorRef remoteInvoker, final RemoteRpcProviderConfig config) {
+ this.remoteInvoker = Preconditions.checkNotNull(remoteInvoker);
+ this.askDuration = config.getAskDuration();
}
@Override
- public CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(final DOMRpcIdentifier rpc, final NormalizedNode<?, ?> input) {
- final InvokeRpc rpcMsg = new InvokeRpc(rpc.getType().getLastComponent(), rpc.getContextReference(), input);
-
- final SettableFuture<DOMRpcResult> settableFuture = SettableFuture.create();
-
- final ListenableFuture<DOMRpcResult> listenableFuture =
- JdkFutureAdapters.listenInPoolThread(settableFuture);
-
- final scala.concurrent.Future<Object> future = ask(rpcBroker, rpcMsg, config.getAskDuration());
-
- final OnComplete<Object> onComplete = new OnComplete<Object>() {
- @Override
- public void onComplete(final Throwable failure, final Object reply) throws Throwable {
- if(failure != null) {
-
- // When we return a failure to the caller they can choose to log it if they like
- // so here we just do basic warn logging by default and log the stack trace only when debug
- // is enabled
-
- LOG.warn("InvokeRpc failed rpc = {}, identifier = {}", rpcMsg.getRpc(), rpcMsg.getIdentifier());
-
- if(LOG.isDebugEnabled()){
- LOG.debug("Detailed Error", failure);
- }
-
- final String message = String.format("Execution of RPC %s failed", rpcMsg.getRpc());
- Collection<RpcError> errors = ((RpcErrorsException)failure).getRpcErrors();
- if(errors == null || errors.size() == 0) {
- errors = Arrays.asList(RpcResultBuilder.newError(ErrorType.RPC, null, message));
- }
- final DOMRpcResult rpcResult = new DefaultDOMRpcResult(errors);
-
- settableFuture.set(rpcResult);
- return;
- }
-
- final RpcResponse rpcReply = (RpcResponse)reply;
- final NormalizedNode<?, ?> result =
- NormalizedNodeSerializer.deSerialize(rpcReply.getResultNormalizedNode());
- settableFuture.set(new DefaultDOMRpcResult(result));
- }
- };
-
+ public FluentFuture<DOMRpcResult> invokeRpc(final DOMRpcIdentifier rpc,
+ final NormalizedNode<?, ?> input) {
+ final RemoteDOMRpcFuture ret = RemoteDOMRpcFuture.create(rpc.getType().getLastComponent());
+ ret.completeWith(Patterns.ask(remoteInvoker, ExecuteRpc.from(rpc, input), askDuration));
+ return ret;
+ }
- future.onComplete(onComplete, ExecutionContext.Implicits$.MODULE$.global());
- // FIXME find non blocking way for implementation
- try {
- return Futures.immediateCheckedFuture(listenableFuture.get());
- }
- catch (InterruptedException | ExecutionException e) {
- LOG.debug("Unexpected remote RPC exception.", e);
- return Futures.immediateFailedCheckedFuture((DOMRpcException) new DOMRpcImplementationNotAvailableException(e, "Unexpected remote RPC exception"));
- }
+ @Override
+ public long invocationCost() {
+ return COST;
}
}