opendaylight/md-sal/sal-remoterpc-connector/src/main/java/org/opendaylight/controller/remote/rpc/RemoteRpcImplementation.java

   1 package org.opendaylight.controller.remote.rpc;
   2
   3 import static akka.pattern.Patterns.ask;
   4 import akka.actor.ActorRef;
   5 import akka.dispatch.OnComplete;
   6 import akka.util.Timeout;
   7
   8 import com.google.common.util.concurrent.ListenableFuture;
   9 import com.google.common.util.concurrent.SettableFuture;
  10
  11 import org.opendaylight.controller.remote.rpc.messages.InvokeRpc;
  12 import org.opendaylight.controller.remote.rpc.messages.RpcResponse;
  13 import org.opendaylight.controller.remote.rpc.utils.ActorUtil;
  14 import org.opendaylight.controller.xml.codec.XmlUtils;
  15 import org.opendaylight.controller.sal.core.api.RoutedRpcDefaultImplementation;
  16 import org.opendaylight.controller.sal.core.api.RpcImplementation;
  17 import org.opendaylight.yangtools.yang.common.QName;
  18 import org.opendaylight.yangtools.yang.common.RpcResult;
  19 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  20 import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
  21 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
  22 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  23 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 import scala.concurrent.ExecutionContext;
  28
  29 import java.util.Collections;
  30 import java.util.Set;
  31
  32 public class RemoteRpcImplementation implements RpcImplementation, RoutedRpcDefaultImplementation {
  33     private static final Logger LOG = LoggerFactory.getLogger(RemoteRpcImplementation.class);
  34     private final ActorRef rpcBroker;
  35     private final SchemaContext schemaContext;
  36
  37     public RemoteRpcImplementation(ActorRef rpcBroker, SchemaContext schemaContext) {
  38         this.rpcBroker = rpcBroker;
  39         this.schemaContext = schemaContext;
  40     }
  41
  42     @Override
  43     public ListenableFuture<RpcResult<CompositeNode>> invokeRpc(QName rpc,
  44             YangInstanceIdentifier identifier, CompositeNode input) {
  45         InvokeRpc rpcMsg = new InvokeRpc(rpc, identifier, input);
  46
  47         return executeMsg(rpcMsg);
  48     }
  49
  50     @Override
  51     public Set<QName> getSupportedRpcs() {
  52         // TODO : check if we need to get this from routing registry
  53         return Collections.emptySet();
  54     }
  55
  56     @Override
  57     public ListenableFuture<RpcResult<CompositeNode>> invokeRpc(QName rpc, CompositeNode input) {
  58         InvokeRpc rpcMsg = new InvokeRpc(rpc, null, input);
  59         return executeMsg(rpcMsg);
  60     }
  61
  62     private ListenableFuture<RpcResult<CompositeNode>> executeMsg(InvokeRpc rpcMsg) {
  63
  64         final SettableFuture<RpcResult<CompositeNode>> listenableFuture = SettableFuture.create();
  65
  66         scala.concurrent.Future<Object> future = ask(rpcBroker, rpcMsg,
  67                 new Timeout(ActorUtil.ASK_DURATION));
  68
  69         OnComplete<Object> onComplete = new OnComplete<Object>() {
  70             @Override
  71             public void onComplete(Throwable failure, Object reply) throws Throwable {
  72                 if(failure != null) {
  73                     LOG.error("InvokeRpc failed", failure);
  74
  75                     RpcResult<CompositeNode> rpcResult;
  76                     if(failure instanceof RpcErrorsException) {
  77                         rpcResult = RpcResultBuilder.<CompositeNode>failed().withRpcErrors(
  78                                 ((RpcErrorsException)failure).getRpcErrors()).build();
  79                     } else {
  80                         rpcResult = RpcResultBuilder.<CompositeNode>failed().withError(
  81                                 ErrorType.RPC, failure.getMessage(), failure).build();
  82                     }
  83
  84                     listenableFuture.set(rpcResult);
  85                     return;
  86                 }
  87
  88                 RpcResponse rpcReply = (RpcResponse)reply;
  89                 CompositeNode result = XmlUtils.xmlToCompositeNode(rpcReply.getResultCompositeNode());
  90                 listenableFuture.set(RpcResultBuilder.success(result).build());
  91             }
  92         };
  93
  94         future.onComplete(onComplete, ExecutionContext.Implicits$.MODULE$.global());
  95
  96         return listenableFuture;
  97     }
  98 }