/**
* Helios, OpenSource Monitoring
* Brought to you by the Helios Development Group
*
* Copyright 2007, Helios Development Group and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*
*/
package org.helios.netty.ajax;
import java.util.Map;
import org.apache.log4j.Logger;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.handler.codec.http.HttpChunkAggregator;
import org.jboss.netty.handler.codec.http.HttpRequestDecoder;
import org.jboss.netty.handler.codec.http.HttpResponseEncoder;
import org.jboss.netty.handler.logging.LoggingHandler;
import org.jboss.netty.handler.stream.ChunkedWriteHandler;
import org.jboss.netty.logging.InternalLogLevel;
/**
* <p>Title: ServerPipelineFactory</p>
* <p>Description: The factory that creates pipelines for each connecting client. The handlers that are inserted into the pipeline
* will be specific to the type of Ajax push that the client requests.</p>
* <p>Company: Helios Development Group LLC</p>
* @author Whitehead (nwhitehead AT heliosdev DOT org)
* <p><code>org.helios.netty.ajax.ServerPipelineFactory</code></p>
*/
public class ServerPipelineFactory implements ChannelPipelineFactory {
/** Instance logger */
protected final Logger log = Logger.getLogger(getClass());
/** The modifier map */
protected final Map<String, PipelineModifier> modifierMap;
/** The logging handler logger */
protected final Logger logHandlerLogger = Logger.getLogger(LoggingHandler.class);
/**
* Creates a new ServerPipelineFactory
* @param modifierMap The modifier map
*/
public ServerPipelineFactory(final Map<String, PipelineModifier> modifierMap) {
this.modifierMap = modifierMap;
}
/**
* Adds a modifier to the factory
* @param name The URI that the modifier responds to
* @param modifier The modifier to add
*/
public void addModifier(String name, PipelineModifier modifier) {
modifierMap.put(name, modifier);
}
/** The port unification pipeline switch */
private final ProtocolSwitch ps = new ProtocolSwitch();
/**
* {@inheritDoc}
* @see org.jboss.netty.channel.ChannelPipelineFactory#getPipeline()
*/
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("protocolSwitch", ps);
pipeline.addLast("decoder", new HttpRequestDecoder());
pipeline.addLast("aggregator", new HttpChunkAggregator(65536));
pipeline.addLast("encoder", new HttpResponseEncoder());
pipeline.addLast("chunkedWriter", new ChunkedWriteHandler());
if(logHandlerLogger.isDebugEnabled()) {
pipeline.addLast("logger", new LoggingHandler(InternalLogLevel.INFO));
}
pipeline.addLast(DefaultChannelHandler.NAME, new DefaultChannelHandler(modifierMap));
if(log.isDebugEnabled()) log.debug("Created Pipeline [" + pipeline + "]");
return pipeline;
}
}