openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/services/ServiceCallProcessingUtil.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 org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  11
  12 import com.google.common.base.Function;
  13 import com.google.common.util.concurrent.SettableFuture;
  14 import org.opendaylight.openflowplugin.api.openflow.device.RequestContext;
  15 import org.opendaylight.openflowplugin.api.openflow.rpc.RpcContext;
  16 import org.opendaylight.yangtools.yang.binding.DataObject;
  17 import org.opendaylight.yangtools.yang.common.RpcResult;
  18 import org.slf4j.Logger;
  19 import java.math.BigInteger;
  20 import java.util.concurrent.Future;
  21
  22 /**
  23  * @author joe
  24  *
  25  */
  26 public class ServiceCallProcessingUtil {
  27
  28     private static final Logger LOG = org.slf4j.LoggerFactory.getLogger(ServiceCallProcessingUtil.class);
  29
  30     static <T extends DataObject, F>  Future<RpcResult<T>> handleServiceCall(final RpcContext rpcContext,
  31 final BigInteger connectionID, final DeviceContext deviceContext, final Function<BigInteger,Future<RpcResult<F>>> function) {
  32         LOG.debug("Calling the FlowMod RPC method on MessageDispatchService");
  33         // use primary connection
  34
  35         final RequestContext<T> requestContext = rpcContext.createRequestContext();
  36         final SettableFuture<RpcResult<T>> result = rpcContext.storeOrFail(requestContext);
  37
  38         if (!result.isDone()) {
  39             final Future<RpcResult<F>> resultFromOFLib = function.apply(connectionID);
  40
  41             final RpcResultConvertor<T> rpcResultConvertor = new RpcResultConvertor<>(requestContext, deviceContext);
  42             rpcResultConvertor.processResultFromOfJava(resultFromOFLib);
  43
  44         } else {
  45             RequestContextUtil.closeRequstContext(requestContext);
  46         }
  47         return result;
  48     }
  49 }