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.device.Xid;
  18 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageSpy;
  19 import org.opendaylight.openflowplugin.impl.callback.SuccessCallback;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SalEchoService;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SendEchoInput;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SendEchoOutput;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.echo.service.rev150305.SendEchoOutputBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInput;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInputBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoOutput;
  27 import org.opendaylight.yangtools.yang.common.RpcResult;
  28 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class SalEchoServiceImpl extends CommonService implements SalEchoService {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(SalEchoServiceImpl.class);
  35
  36     public SalEchoServiceImpl(final RequestContextStack requestContextStack, final DeviceContext deviceContext) {
  37         super(requestContextStack, deviceContext);
  38     }
  39
  40     @Override
  41     public Future<RpcResult<SendEchoOutput>> sendEcho(final SendEchoInput sendEchoInput) {
  42         final RequestContext<SendEchoOutput> requestContext = getRequestContextStack().createRequestContext();
  43         if (requestContext == null) {
  44             getMessageSpy().spyMessage(null, MessageSpy.STATISTIC_GROUP.TO_SWITCH_SUBMIT_FAILURE);
  45             return failedFuture();
  46         }
  47
  48
  49         final DeviceContext deviceContext = getDeviceContext();
  50         Long reserverXid = deviceContext.getReservedXid();
  51         if (null == reserverXid) {
  52             reserverXid = deviceContext.getReservedXid();
  53             return RequestContextUtil.closeRequestContextWithRpcError(requestContext, "Outbound queue wasn't able to reserve XID.");
  54         }
  55         final Xid xid = new Xid(reserverXid);
  56         requestContext.setXid(xid);
  57
  58         LOG.trace("Hooking xid {} to device context - precaution.", requestContext.getXid().getValue());
  59         deviceContext.hookRequestCtx(requestContext.getXid(), requestContext);
  60
  61         final EchoInputBuilder echoInputOFJavaBuilder = new EchoInputBuilder();
  62         echoInputOFJavaBuilder.setVersion(getVersion());
  63         echoInputOFJavaBuilder.setXid(xid.getValue());
  64         echoInputOFJavaBuilder.setData(sendEchoInput.getData());
  65         final EchoInput echoInputOFJava = echoInputOFJavaBuilder.build();
  66
  67         // FIXME: should be submitted via OutboundQueue
  68         final Future<RpcResult<EchoOutput>> rpcEchoOutputOFJava = getPrimaryConnectionAdapter()
  69                 .echo(echoInputOFJava);
  70         LOG.debug("Echo with xid {} was sent from controller", xid);
  71
  72         ListenableFuture<RpcResult<EchoOutput>> listenableRpcEchoOutputOFJava = JdkFutureAdapters
  73                 .listenInPoolThread(rpcEchoOutputOFJava);
  74
  75         // callback on OF JAVA future
  76         SuccessCallback<EchoOutput, SendEchoOutput> successCallback = new SuccessCallback<EchoOutput, SendEchoOutput>(
  77                 deviceContext, requestContext, listenableRpcEchoOutputOFJava) {
  78
  79             @Override
  80             public RpcResult<SendEchoOutput> transform(final RpcResult<EchoOutput> rpcResult) {
  81                 EchoOutput echoOutputOFJava = rpcResult.getResult();
  82                 SendEchoOutputBuilder sendEchoOutputBuilder = new SendEchoOutputBuilder();
  83                 sendEchoOutputBuilder.setData(echoOutputOFJava.getData());
  84
  85                 LOG.debug("Echo with xid {} was received by controller.", rpcResult.getResult().getXid());
  86                 return RpcResultBuilder.success(sendEchoOutputBuilder.build()).build();
  87             }
  88         };
  89         Futures.addCallback(listenableRpcEchoOutputOFJava, successCallback);
  90
  91         return requestContext.getFuture();
  92     }
  93 }