1 package org.opendaylight.controller.remote.rpc;
3 import static akka.pattern.Patterns.ask;
5 import akka.actor.ActorRef;
6 import akka.dispatch.OnComplete;
8 import com.google.common.util.concurrent.CheckedFuture;
9 import com.google.common.util.concurrent.Futures;
10 import java.util.List;
11 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
12 import org.opendaylight.controller.md.sal.dom.api.DOMRpcIdentifier;
13 import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementation;
14 import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementationNotAvailableException;
15 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
16 import org.opendaylight.controller.remote.rpc.messages.ExecuteRpc;
17 import org.opendaylight.controller.remote.rpc.registry.RpcRegistry;
18 import org.opendaylight.controller.remote.rpc.registry.RpcRegistry.Messages.FindRoutersReply;
19 import org.opendaylight.controller.remote.rpc.utils.LatestEntryRoutingLogic;
20 import org.opendaylight.controller.sal.connector.api.RpcRouter;
21 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
22 import org.slf4j.Logger;
23 import org.slf4j.LoggerFactory;
24 import scala.concurrent.ExecutionContext;
25 import scala.concurrent.Future;
27 public class RemoteRpcImplementation implements DOMRpcImplementation {
28 private static final Logger LOG = LoggerFactory.getLogger(RemoteRpcImplementation.class);
30 private final ActorRef rpcRegistry;
31 private final RemoteRpcProviderConfig config;
33 public RemoteRpcImplementation(final ActorRef rpcRegistry, final RemoteRpcProviderConfig config) {
35 this.rpcRegistry = rpcRegistry;
39 public CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(final DOMRpcIdentifier rpc,
40 final NormalizedNode<?, ?> input) {
41 if (input instanceof RemoteRpcInput) {
42 LOG.warn("Rpc {} was removed during execution or there is loop present. Failing received rpc.", rpc);
44 .<DOMRpcResult, DOMRpcException>immediateFailedCheckedFuture(new DOMRpcImplementationNotAvailableException(
45 "Rpc implementation for {} was removed during processing.", rpc));
47 final RemoteDOMRpcFuture frontEndFuture = RemoteDOMRpcFuture.create(rpc.getType().getLastComponent());
48 findRouteAsync(rpc).onComplete(new OnComplete<FindRoutersReply>() {
51 public void onComplete(final Throwable error, final FindRoutersReply routes) throws Throwable {
53 frontEndFuture.failNow(error);
55 final List<Pair<ActorRef, Long>> routePairs = routes.getRouterWithUpdateTime();
56 if (routePairs == null || routePairs.isEmpty()) {
57 frontEndFuture.failNow(new DOMRpcImplementationNotAvailableException(
58 "No local or remote implementation available for rpc %s", rpc.getType(), error));
60 final ActorRef remoteImplRef = new LatestEntryRoutingLogic(routePairs).select();
61 final Object executeRpcMessage = ExecuteRpc.from(rpc, input);
62 LOG.debug("Found remote actor {} for rpc {} - sending {}", remoteImplRef, rpc.getType(), executeRpcMessage);
63 frontEndFuture.completeWith(ask(remoteImplRef, executeRpcMessage, config.getAskDuration()));
67 }, ExecutionContext.Implicits$.MODULE$.global());
68 return frontEndFuture;
71 @SuppressWarnings({"unchecked", "rawtypes"})
72 private Future<FindRoutersReply> findRouteAsync(final DOMRpcIdentifier rpc) {
73 // FIXME: Refactor routeId and message to use DOMRpcIdentifier directly.
74 final RpcRouter.RouteIdentifier<?, ?, ?> routeId =
75 new RouteIdentifierImpl(null, rpc.getType().getLastComponent(), rpc.getContextReference());
76 final RpcRegistry.Messages.FindRouters findMsg = new RpcRegistry.Messages.FindRouters(routeId);
77 return (Future) ask(rpcRegistry, findMsg, config.getAskDuration());