/**
 * Copyright (c) 2011-2012, James Zhan 詹波 (jfinal@126.com).
 *
 * 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.
 */

package com.jfinal.handler;

import java.util.List;

/**
 * HandlerFactory.
 */
public class HandlerFactory {
	
	private HandlerFactory() {
		
	}
	
	/**
	 * Build handler chain
	 */
	public static Handler getHandler(List<Handler> handlerList, Handler actionHandler) {
		Handler result = actionHandler;
		
		for (int i=handlerList.size()-1; i>=0; i--) {
			Handler temp = handlerList.get(i);
			temp.nextHandler = result;
			result = temp;
		}
		
		return result;
	}
}