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 akka.actor.ActorRef;
   4 import com.google.common.util.concurrent.Futures;
   5 import com.google.common.util.concurrent.ListenableFuture;
   6 import org.opendaylight.controller.remote.rpc.messages.ErrorResponse;
   7 import org.opendaylight.controller.remote.rpc.messages.InvokeRpc;
   8 import org.opendaylight.controller.remote.rpc.messages.RpcResponse;
   9 import org.opendaylight.controller.remote.rpc.utils.ActorUtil;
  10 import org.opendaylight.controller.remote.rpc.utils.XmlUtils;
  11 import org.opendaylight.controller.sal.core.api.RoutedRpcDefaultImplementation;
  12 import org.opendaylight.controller.sal.core.api.RpcImplementation;
  13 import org.opendaylight.yangtools.yang.common.QName;
  14 import org.opendaylight.yangtools.yang.common.RpcResult;
  15 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  16 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
  17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  18 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 import java.util.Collections;
  23 import java.util.Set;
  24
  25 public class RemoteRpcImplementation implements RpcImplementation,
  26     RoutedRpcDefaultImplementation {
  27   private static final Logger LOG = LoggerFactory.getLogger(RemoteRpcImplementation.class);
  28   private ActorRef rpcBroker;
  29   private SchemaContext schemaContext;
  30
  31   public RemoteRpcImplementation(ActorRef rpcBroker, SchemaContext schemaContext) {
  32     this.rpcBroker = rpcBroker;
  33     this.schemaContext = schemaContext;
  34   }
  35
  36   @Override
  37   public ListenableFuture<RpcResult<CompositeNode>> invokeRpc(QName rpc, YangInstanceIdentifier identifier, CompositeNode input) {
  38     InvokeRpc rpcMsg = new InvokeRpc(rpc, identifier, input);
  39
  40     return executeMsg(rpcMsg);
  41   }
  42
  43   @Override
  44   public Set<QName> getSupportedRpcs() {
  45     // TODO : check if we need to get this from routing registry
  46     return Collections.emptySet();
  47   }
  48
  49   @Override
  50   public ListenableFuture<RpcResult<CompositeNode>> invokeRpc(QName rpc, CompositeNode input) {
  51     InvokeRpc rpcMsg = new InvokeRpc(rpc, null, input);
  52     return executeMsg(rpcMsg);
  53   }
  54
  55   private ListenableFuture<RpcResult<CompositeNode>> executeMsg(Object rpcMsg) {
  56     ListenableFuture<RpcResult<CompositeNode>> listenableFuture = null;
  57
  58     try {
  59       Object response = ActorUtil.executeOperation(rpcBroker, rpcMsg, ActorUtil.ASK_DURATION, ActorUtil.AWAIT_DURATION);
  60       if(response instanceof RpcResponse) {
  61
  62         RpcResponse rpcResponse = (RpcResponse) response;
  63         CompositeNode result = XmlUtils.xmlToCompositeNode(rpcResponse.getResultCompositeNode());
  64         listenableFuture = Futures.immediateFuture(RpcResultBuilder.success(result).build());
  65
  66       } else if(response instanceof ErrorResponse) {
  67
  68         ErrorResponse errorResponse = (ErrorResponse) response;
  69         Exception e = errorResponse.getException();
  70         final RpcResultBuilder<CompositeNode> failed = RpcResultBuilder.failed();
  71         failed.withError(null, null, e.getMessage(), null, null, e.getCause());
  72         listenableFuture = Futures.immediateFuture(failed.build());
  73
  74       }
  75     } catch (Exception e) {
  76       LOG.error("Error occurred while invoking RPC actor {}", e);
  77
  78       final RpcResultBuilder<CompositeNode> failed = RpcResultBuilder.failed();
  79       failed.withError(null, null, e.getMessage(), null, null, e.getCause());
  80       listenableFuture = Futures.immediateFuture(failed.build());
  81     }
  82
  83     return listenableFuture;
  84   }
  85 }