openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/services/FlowCapableTransactionServiceImpl.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.flow.transaction.rev150304.FlowCapableTransactionService;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev150304.SendBarrierInput;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInput;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInputBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierOutput;
  25 import org.opendaylight.yangtools.yang.common.RpcResult;
  26 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  27 import org.slf4j.Logger;
  28
  29 public class FlowCapableTransactionServiceImpl extends CommonService implements FlowCapableTransactionService {
  30
  31     private static final Logger LOG = org.slf4j.LoggerFactory.getLogger(FlowCapableTransactionServiceImpl.class);
  32
  33     public FlowCapableTransactionServiceImpl(final RequestContextStack requestContextStack, final DeviceContext deviceContext) {
  34         super(requestContextStack, deviceContext);
  35     }
  36
  37     @Override
  38     public Future<RpcResult<Void>> sendBarrier(final SendBarrierInput input) {
  39         final RequestContext<Void> requestContext = getRequestContextStack().createRequestContext();
  40         if (requestContext == null) {
  41             getMessageSpy().spyMessage(null, MessageSpy.STATISTIC_GROUP.TO_SWITCH_SUBMIT_FAILURE);
  42             return failedFuture();
  43         }
  44
  45         final DeviceContext deviceContext = getDeviceContext();
  46         final Long reservedXid = deviceContext.getReservedXid();
  47         if (null == reservedXid) {
  48             return RequestContextUtil.closeRequestContextWithRpcError(requestContext, "Outbound queue wasn't able to reserve XID.");
  49         }
  50         final Xid xid = new Xid(reservedXid);
  51         requestContext.setXid(xid);
  52
  53         final BarrierInputBuilder barrierInputOFJavaBuilder = new BarrierInputBuilder();
  54         barrierInputOFJavaBuilder.setVersion(getVersion());
  55         barrierInputOFJavaBuilder.setXid(xid.getValue());
  56
  57         LOG.trace("Hooking xid {} to device context - precaution.", requestContext.getXid().getValue());
  58         deviceContext.hookRequestCtx(requestContext.getXid(), requestContext);
  59
  60         final BarrierInput barrierInputOFJava = barrierInputOFJavaBuilder.build();
  61
  62         // FIXME: should be submitted through OutboundQueue
  63         final Future<RpcResult<BarrierOutput>> barrierOutputOFJava = getPrimaryConnectionAdapter()
  64                 .barrier(barrierInputOFJava);
  65         LOG.debug("Barrier with xid {} was sent from controller.", xid);
  66
  67         ListenableFuture<RpcResult<BarrierOutput>> listenableBarrierOutputOFJava = JdkFutureAdapters
  68                 .listenInPoolThread(barrierOutputOFJava);
  69
  70         // callback on OF JAVA future
  71         SuccessCallback<BarrierOutput, Void> successCallback = new SuccessCallback<BarrierOutput, Void>(
  72                 deviceContext, requestContext, listenableBarrierOutputOFJava) {
  73
  74             @Override
  75             public RpcResult<Void> transform(final RpcResult<BarrierOutput> rpcResult) {
  76                 //no transformation, because output for request context is Void
  77                 LOG.debug("Barrier reply with xid {} was obtained by controller.", rpcResult.getResult().getXid());
  78                 return RpcResultBuilder.<Void>success().build();
  79             }
  80         };
  81         Futures.addCallback(listenableBarrierOutputOFJava, successCallback);
  82
  83         return requestContext.getFuture();
  84     }
  85 }