openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/services/SalEchoServiceImpl.java

   1 /**
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.openflowplugin.impl.services;
   9
  10 import com.google.common.util.concurrent.Futures;
  11 import com.google.common.util.concurrent.JdkFutureAdapters;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import java.util.concurrent.Future;
  14 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  15 import org.opendaylight.openflowplugin.api.openflow.device.RequestContext;
  16 import org.opendaylight.openflowplugin.api.openflow.device.RequestContextStack;
  17 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageSpy;
  18 import org.opendaylight.openflowplugin.impl.callback.SuccessCallback;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SalEchoService;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SendEchoInput;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SendEchoOutput;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SendEchoOutputBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInput;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInputBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoOutput;
  26 import org.opendaylight.yangtools.yang.common.RpcResult;
  27 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 public class SalEchoServiceImpl extends CommonService implements SalEchoService {
  32
  33     private static final Logger LOG = LoggerFactory.getLogger(SalEchoServiceImpl.class);
  34
  35     public SalEchoServiceImpl(final RequestContextStack requestContextStack, final DeviceContext deviceContext) {
  36         super(requestContextStack, deviceContext);
  37     }
  38
  39     @Override
  40     public Future<RpcResult<SendEchoOutput>> sendEcho(final SendEchoInput sendEchoInput) {
  41         final RequestContext<SendEchoOutput> requestContext = getRequestContextStack().createRequestContext();
  42         if (requestContext == null) {
  43             getMessageSpy().spyMessage(null, MessageSpy.STATISTIC_GROUP.TO_SWITCH_SUBMIT_FAILURE);
  44             return failedFuture();
  45         }
  46
  47
  48         final DeviceContext deviceContext = getDeviceContext();
  49
  50         LOG.trace("Hooking xid {} to device context - precaution.", requestContext.getXid().getValue());
  51         deviceContext.hookRequestCtx(requestContext.getXid(), requestContext);
  52
  53         final EchoInputBuilder echoInputOFJavaBuilder = new EchoInputBuilder();
  54         echoInputOFJavaBuilder.setVersion(getVersion());
  55         echoInputOFJavaBuilder.setXid(requestContext.getXid().getValue());
  56         echoInputOFJavaBuilder.setData(sendEchoInput.getData());
  57         final EchoInput echoInputOFJava = echoInputOFJavaBuilder.build();
  58
  59         // FIXME: should be submitted via OutboundQueue
  60         final Future<RpcResult<EchoOutput>> rpcEchoOutputOFJava = getPrimaryConnectionAdapter()
  61                 .echo(echoInputOFJava);
  62         LOG.debug("Echo with xid {} was sent from controller", requestContext.getXid());
  63
  64         ListenableFuture<RpcResult<EchoOutput>> listenableRpcEchoOutputOFJava = JdkFutureAdapters
  65                 .listenInPoolThread(rpcEchoOutputOFJava);
  66
  67         // callback on OF JAVA future
  68         SuccessCallback<EchoOutput, SendEchoOutput> successCallback = new SuccessCallback<EchoOutput, SendEchoOutput>(
  69                 deviceContext, requestContext, listenableRpcEchoOutputOFJava) {
  70
  71             @Override
  72             public RpcResult<SendEchoOutput> transform(final RpcResult<EchoOutput> rpcResult) {
  73                 EchoOutput echoOutputOFJava = rpcResult.getResult();
  74                 SendEchoOutputBuilder sendEchoOutputBuilder = new SendEchoOutputBuilder();
  75                 sendEchoOutputBuilder.setData(echoOutputOFJava.getData());
  76
  77                 LOG.debug("Echo with xid {} was received by controller.", rpcResult.getResult().getXid());
  78                 return RpcResultBuilder.success(sendEchoOutputBuilder.build()).build();
  79             }
  80         };
  81         Futures.addCallback(listenableRpcEchoOutputOFJava, successCallback);
  82
  83         return requestContext.getFuture();
  84     }
  85 }