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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.oio;

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;
import org.jboss.netty.channel.socket.Worker;

public abstract class AbstractOioChannelSink extends AbstractChannelSink {

    @Override
    public ChannelFuture execute(final ChannelPipeline pipeline, final Runnable task) {
        Channel ch = pipeline.getChannel();
        if (ch instanceof AbstractOioChannel) {
            AbstractOioChannel channel = (AbstractOioChannel) ch;
            Worker worker = channel.worker;
            if (worker != null) {
                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 AbstractOioChannel) {
            fireLater = !AbstractOioWorker.isIoThread((AbstractOioChannel) channel);
        }
        return fireLater;
    }

}