numberguessservice.java

来自「AJAX的一个好东西哦,国人的一个AJAX的实现不错的东西」· Java 代码 · 共 61 行

/*
 * Copyright 2002-2004 the original author or authors.
 * 
 * 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 net.buffalo.demo.numberguess;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import net.buffalo.server.BuffaloService;

/**
 * 
 * @author michael
 */
public class NumberGuessService extends BuffaloService {
	
	private NumberGuessBean getBean() {
		HttpServletRequest request = (HttpServletRequest)getRequest();
		
		HttpSession session = request.getSession();
	
		NumberGuessBean bean = (NumberGuessBean)(session.getAttribute("guessbean"));
		if (bean == null) {
		    newRound();
		}
		bean = (NumberGuessBean)(session.getAttribute("guessbean"));
		
		return bean;
	}
	
	public void newRound() {
		
		HttpServletRequest request = (HttpServletRequest)getRequest();
		HttpSession session = request.getSession();
	
		NumberGuessBean bean = new NumberGuessBean();
		
		session.setAttribute("guessbean", bean);
	}
	
	public NumberGuessBean guess(int guess) {
		NumberGuessBean bean = getBean(); 
		bean.setGuess(guess);
		
		return bean;
	}
}