openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/services/OFJResult2RequestCtxFuture.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
   9 package org.opendaylight.openflowplugin.impl.services;
  10
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  15 import org.opendaylight.openflowplugin.api.openflow.device.RequestContext;
  16 import org.opendaylight.yangtools.yang.common.RpcError;
  17 import org.opendaylight.yangtools.yang.common.RpcResult;
  18 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 /**
  23  * Created by Martin Bobak &lt;mbobak@cisco.com&gt; on 26.3.2015.
  24  */
  25 public class OFJResult2RequestCtxFuture<T> {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(OFJResult2RequestCtxFuture.class);
  28     private final RequestContext<T> requestContext;
  29     private final DeviceContext deviceContext;
  30
  31     public OFJResult2RequestCtxFuture(final RequestContext<T> requestContext, final DeviceContext deviceContext) {
  32         this.requestContext = requestContext;
  33         this.deviceContext = deviceContext;
  34     }
  35
  36     public <F> void processResultFromOfJava(final ListenableFuture<RpcResult<F>> futureResultFromOfLib) {
  37         Futures.addCallback(futureResultFromOfLib, new FutureCallback<RpcResult<F>>() {
  38             @Override
  39             public void onSuccess(final RpcResult<F> fRpcResult) {
  40                 if (!fRpcResult.isSuccessful()) {
  41                     StringBuilder rpcErrors = new StringBuilder();
  42                     if (null != fRpcResult.getErrors() && fRpcResult.getErrors().size() > 0) {
  43                         for (RpcError error : fRpcResult.getErrors()) {
  44                             rpcErrors.append(error.getMessage());
  45                         }
  46                     }
  47                     LOG.trace("OF Java result for XID {} was not successful. Errors : {}", requestContext.getXid().getValue(), rpcErrors.toString());
  48                     requestContext.getFuture().set(
  49                             RpcResultBuilder.<T>failed().withRpcErrors(fRpcResult.getErrors()).build());
  50                     RequestContextUtil.closeRequstContext(requestContext);
  51                 } else {
  52                     LOG.trace("Hooking xid {} to device context.", requestContext.getXid().getValue());
  53                     deviceContext.hookRequestCtx(requestContext.getXid(), requestContext);
  54                 }
  55             }
  56
  57             @Override
  58             public void onFailure(final Throwable throwable) {
  59                 LOG.trace("Exception occured while processing OF Java response for XID {}.", requestContext.getXid().getValue(), throwable);
  60                 requestContext.getFuture().set(
  61                         RpcResultBuilder.<T>failed()
  62                                 .withError(RpcError.ErrorType.APPLICATION, "", "Flow translation to OF JAVA failed.")
  63                                 .build());
  64                 RequestContextUtil.closeRequstContext(requestContext);
  65             }
  66         });
  67     }
  68 }