//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.server.handler;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Request;

/* ------------------------------------------------------------ */
/** HandlerList.
 * This extension of {@link HandlerCollection} will call
 * each contained handler in turn until either an exception is thrown, the response 
 * is committed or a positive response status is set.
 */
public class HandlerList extends HandlerCollection
{
	@Override
	public void handle(String target, Request request, HttpServletResponse response) 
		throws IOException, ServletException
	{
		Handler[] handlers = getHandlers();
		
		if (handlers!=null && isStarted())
		{
			for (int i=0;i<handlers.length;i++)
			{
				handlers[i].handle(target, request, response);
				if ( request.isHandled())
					return;
			}
		}
	}
}