/**
* Copyright (c) 2011 Yahoo! Inc. All rights reserved.
*
* Licensed 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. See accompanying LICENSE file.
*/
package com.yahoo.omid.tso;
import java.util.concurrent.Executor;
import org.jboss.netty.channel.ChannelHandler;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.handler.execution.ExecutionHandler;
import org.jboss.netty.util.Timer;
import com.yahoo.omid.tso.serialization.TSODecoder;
import com.yahoo.omid.tso.serialization.TSOEncoder;
/**
* @author maysam
*
*/
public class TSOPipelineFactory implements ChannelPipelineFactory {
private Executor pipelineExecutor = null;
/**
* Constructor
* @param channelGroup
* @param pipelineExecutor
* @param answer
* @param to The shared timestamp oracle
* @param shared The shared state among handlers
*/
public TSOPipelineFactory(Executor pipelineExecutor, ChannelHandler handler) {
super();
this.pipelineExecutor = pipelineExecutor;
this.handler = handler;
}
/**
* Initiate the Pipeline for the newly active connection with ObjectXxcoder.
* @see org.jboss.netty.channel.ChannelPipelineFactory#getPipeline()
*/
//TSODecoder d = new TSODecoder();
//TSOEncoder e = new TSOEncoder();
ExecutionHandler x = null;// = new ExecutionHandler(pipelineExecutor);
ChannelHandler handler = null;
Timer timer = null;//未使用
public static BandwidthMeterHandler bwhandler = null;
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("decoder", new TSODecoder(null));
pipeline.addLast("encoder", new TSOEncoder());
synchronized (this) {
if (x == null)
x = new ExecutionHandler(pipelineExecutor);
if (bwhandler == null)
bwhandler = new BandwidthMeterHandler();
// if (timer == null)
// timer = new HashedWheelTimer();
}
pipeline.addLast("pipelineExecutor", x);
// pipeline.addLast("timeout", new WriteTimeoutHandler(timer, 10));
pipeline.addFirst("bw", bwhandler);
pipeline.addLast("handler", handler);
return pipeline;
}
}