ThreadPoolConfigHandler.java

//	---------------------------------------------------------------------------
//	jWebSocket - Copyright (c) 2010 jwebsocket.org
//	---------------------------------------------------------------------------
//	This program 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 3 of the License, or (at your
//	option) any later version.
//	This program 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 program; if not, see <http://www.gnu.org/licenses/lgpl.html>.
//	---------------------------------------------------------------------------
package org.jwebsocket.config.xml;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.jwebsocket.config.Config;
import org.jwebsocket.config.ConfigHandler;
/**
 * Handler class that reads the server configuration
 * @author puran
 * @version $Id: ServerConfigHandler.java 596 2010-06-22 17:09:54Z fivefeetfurther $
 *
 */
public class ThreadPoolConfigHandler implements ConfigHandler {

	private static final String CORE_POOL_SIZE = "corePoolSize";
	private static final String MAXIMUM_POOL_SIZE = "maximumPoolSize";
	private static final String KEEP_ALIVE_TIME = "keepAliveTime";
	private static final String BLOCKING_QUEUE_SIZE = "blockingQueueSize";
	private static final String ELEMENT_THREAD_POOL = "threadPool";	
	/**
	 * {@inheritDoc}
	 */
	@Override
	public Config processConfig(XMLStreamReader streamReader) throws XMLStreamException {	  
		int corePoolSize = 0, maximumPoolSize = 0, keepAliveTime = 0, blockingQueueSize = 0;
		while (streamReader.hasNext()) {
			streamReader.next();
			if (streamReader.isStartElement()) {
				String elementName = streamReader.getLocalName();
				if (elementName.equals(CORE_POOL_SIZE)) {
					streamReader.next();
					try {
						corePoolSize = Integer.valueOf(streamReader.getText());
					} catch (NumberFormatException e) {
					}
				} else if (elementName.equals(MAXIMUM_POOL_SIZE)) {
					streamReader.next();
					try {
						maximumPoolSize = Integer.valueOf(streamReader.getText());
					} catch (NumberFormatException e) {
					}
				} else if (elementName.equals(KEEP_ALIVE_TIME)) {
					streamReader.next();
					try {
						keepAliveTime = Integer.valueOf(streamReader.getText());
					} catch (NumberFormatException e) {
					}
				} else if (elementName.equals(BLOCKING_QUEUE_SIZE)) {
					streamReader.next();
					try {
						blockingQueueSize = Integer.valueOf(streamReader.getText());
					} catch (NumberFormatException e) {
					}
				} else {
					//ignore
				}
			}
			if (streamReader.isEndElement()) {
				String elementName = streamReader.getLocalName();
				if (elementName.equals(ELEMENT_THREAD_POOL)) {
					break;
				}
			}
		}
		return new ThreadPoolConfig(corePoolSize, maximumPoolSize, keepAliveTime, blockingQueueSize);
	}

}