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   /*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License,
    * version 2.0 (the "License"); you may not use this file except in compliance
    * with the License. You may obtain a copy of the License at:
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  
  package org.jboss.netty.channel.socket.nio;
  
  import org.jboss.netty.channel.AbstractChannelSink;
  import org.jboss.netty.channel.Channel;
  import org.jboss.netty.channel.ChannelEvent;
  import org.jboss.netty.channel.ChannelFuture;
  import org.jboss.netty.channel.ChannelPipeline;
  import org.jboss.netty.channel.socket.ChannelRunnableWrapper;
  
  public abstract class AbstractNioChannelSink extends AbstractChannelSink {
  
      @Override
      public ChannelFuture execute(ChannelPipeline pipeline, final Runnable task) {
          Channel ch = pipeline.getChannel();
          if (ch instanceof AbstractNioChannel<?>) {
              AbstractNioChannel<?> channel = (AbstractNioChannel<?>) ch;
              ChannelRunnableWrapper wrapper = new ChannelRunnableWrapper(pipeline.getChannel(), task);
              channel.worker.executeInIoThread(wrapper);
              return wrapper;
          }
          return super.execute(pipeline, task);
      }
  
      @Override
      protected boolean isFireExceptionCaughtLater(ChannelEvent event, Throwable actualCause) {
          Channel channel = event.getChannel();
          boolean fireLater = false;
          if (channel instanceof AbstractNioChannel<?>) {
              fireLater =  !AbstractNioWorker.isIoThread((AbstractNioChannel<?>) channel);
          }
          return fireLater;
      }
  }