openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/services/SimpleRequestCallback.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.base.Preconditions;
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import org.opendaylight.openflowplugin.api.openflow.device.RequestContext;
  13 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageSpy;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
  15 import org.opendaylight.yangtools.yang.binding.DataObject;
  16 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  17 import org.slf4j.Logger;
  18 import org.slf4j.LoggerFactory;
  19
  20 public final class SimpleRequestCallback<T extends DataObject> extends AbstractRequestCallback<T> {
  21     private static final Logger LOG = LoggerFactory.getLogger(SimpleRequestCallback.class);
  22     private final Class<T> clazz;
  23
  24     private SimpleRequestCallback(final RequestContext<T> context,
  25                                   final Class<?> requestType,
  26                                   final MessageSpy spy,
  27                                   final Class<T> clazz) {
  28         super(context, requestType, spy, null);
  29         this.clazz = Preconditions.checkNotNull(clazz);
  30     }
  31
  32     public static <T extends DataObject> FutureCallback<OfHeader> create(final RequestContext<T> context,
  33                                                                          final Class<?> requestType,
  34                                                                          final MessageSpy spy,
  35                                                                          final Class<T> clazz) {
  36         return new SimpleRequestCallback<>(context, requestType, spy, clazz);
  37     }
  38
  39     @Override
  40     public void onSuccess(OfHeader result) {
  41         spyMessage(MessageSpy.StatisticsGroup.TO_SWITCH_SUBMIT_SUCCESS);
  42
  43         if (result == null) {
  44             setResult(RpcResultBuilder.<T>success().build());
  45             return;
  46         }
  47         if (!clazz.isInstance(result)) {
  48             LOG.info("Expected response type {}, got {}, result is empty", clazz, result.getClass());
  49             setResult(RpcResultBuilder.<T>success().build());
  50             return;
  51
  52         }
  53
  54         setResult(RpcResultBuilder.success(clazz.cast(result)).build());
  55     }
  56 }