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 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, final Class<?> requestType, final MessageSpy spy, final Class<T> clazz) {
  25         super(context, requestType, spy);
  26         this.clazz = Preconditions.checkNotNull(clazz);
  27     }
  28
  29     static <T extends DataObject> FutureCallback<OfHeader> create(final RequestContext<T> context, final Class<?> requestType, final MessageSpy spy, final Class<T> clazz) {
  30         return new SimpleRequestCallback<>(context, requestType, spy, clazz);
  31     }
  32
  33     @Override
  34     public final void onSuccess(final OfHeader result) {
  35         spyMessage(MessageSpy.STATISTIC_GROUP.TO_SWITCH_SUBMIT_SUCCESS);
  36
  37         if (result == null) {
  38             setResult(RpcResultBuilder.<T>success().build());
  39             return;
  40         }
  41         if (!clazz.isInstance(result)) {
  42             LOG.info("Expected response type {}, got {}, result is empty", clazz, result.getClass());
  43             setResult(RpcResultBuilder.<T>success().build());
  44             return;
  45
  46         }
  47
  48         setResult(RpcResultBuilder.success(clazz.cast(result)).build());
  49     }
  50 }