java source code of FakeCarbonPipelineFactory

package org.timconrad.fakecarbon;
/*
 * Copyright 2012 Tim Conrad - [email protected]
 *
 *    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.
 */

import static org.jboss.netty.channel.Channels.*;

import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.handler.codec.frame.DelimiterBasedFrameDecoder;
import org.jboss.netty.handler.codec.frame.Delimiters;
import org.jboss.netty.handler.codec.string.StringDecoder;
import org.jboss.netty.handler.codec.string.StringEncoder;

import java.util.Hashtable;

public class FakeCarbonPipelineFactory implements ChannelPipelineFactory {

    private final Hashtable<String, String> appConfig;

    public FakeCarbonPipelineFactory(Hashtable<String, String> appConfig) {
        this.appConfig = appConfig;
    }

    public ChannelPipeline getPipeline() throws Exception {
        // this is pretty verbose from the netty examples
        ChannelPipeline pipeline = Channels.pipeline();
        pipeline.addLast("framer", new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
        pipeline.addLast("decoder", new StringDecoder());
        pipeline.addLast("encoder", new StringEncoder());
        pipeline.addLast("handler", new FakeCarbonHandler(appConfig));
        return pipeline;
    }

}