openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/sal/OFRpcFutureResultTransformFactory.java

   1 /**
   2  * Copyright (c) 2013 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.openflow.md.core.sal;
   9
  10 import java.util.Collection;
  11
  12 import org.opendaylight.controller.sal.common.util.Rpcs;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowOutput;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowOutputBuilder;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.UpdateFlowOutput;
  16 import org.opendaylight.yangtools.yang.common.RpcError;
  17 import org.opendaylight.yangtools.yang.common.RpcResult;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 import com.google.common.base.Function;
  22
  23 /**
  24  * collection of transformation functions dedicated to rpc future results
  25  */
  26 public abstract class OFRpcFutureResultTransformFactory {
  27
  28     protected static Logger LOG = LoggerFactory
  29             .getLogger(OFRpcFutureResultTransformFactory.class);
  30
  31     /**
  32      * @return translator from {@link UpdateFlowOutput} to {@link AddFlowOutput}
  33      */
  34     public static Function<RpcResult<UpdateFlowOutput>,RpcResult<AddFlowOutput>> createForAddFlowOutput() {
  35         return new Function<RpcResult<UpdateFlowOutput>,RpcResult<AddFlowOutput>>() {
  36
  37             @Override
  38             public RpcResult<AddFlowOutput> apply(final RpcResult<UpdateFlowOutput> input) {
  39
  40                 UpdateFlowOutput updateFlowOutput = input.getResult();
  41
  42                 AddFlowOutputBuilder addFlowOutput = new AddFlowOutputBuilder();
  43                 addFlowOutput.setTransactionId(updateFlowOutput.getTransactionId());
  44                 AddFlowOutput result = addFlowOutput.build();
  45
  46                 RpcResult<AddFlowOutput> rpcResult = assembleRpcResult(input, result);
  47                 LOG.debug("Returning the Add Flow RPC result to MD-SAL");
  48                 return rpcResult;
  49             }
  50
  51         };
  52     }
  53
  54
  55     /**
  56      * @param input
  57      * @param result
  58      * @return
  59      */
  60     protected static <E> RpcResult<E> assembleRpcResult(RpcResult<?> input, E result) {
  61         Collection<RpcError> errors = input.getErrors();
  62         RpcResult<E> rpcResult = Rpcs.getRpcResult(input.isSuccessful(), result, errors);
  63         return rpcResult;
  64     }
  65 }