topicajax.java

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/* 
 * Created on 2007-3-24
 * Last modified on 2007-08-22
 * Powered by YeQiangWei.com
 */
package com.yeqiangwei.club.view.ajax;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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

import org.apache.log4j.Logger;

import com.yeqiangwei.club.exception.ClubException;
import com.yeqiangwei.club.param.TopicParameter;
import com.yeqiangwei.club.service.topic.ReplyService;
import com.yeqiangwei.club.service.ServiceLocator;
import com.yeqiangwei.club.service.ServiceWrapper;
import com.yeqiangwei.club.service.topic.TopicService;
import com.yeqiangwei.club.service.model.ReplyModel;
import com.yeqiangwei.club.util.BeanLocator;
import com.yeqiangwei.club.util.BeanUtils;
import com.yeqiangwei.club.util.MessageUtils;
import com.yeqiangwei.club.view.model.ReplyView;
import com.yeqiangwei.club.view.util.ViewCoder;
import com.yeqiangwei.util.ParamUtils;
import com.yeqiangwei.util.StringHelper;
import com.yeqiangwei.util.Validator;

public class TopicAjax extends HttpServlet {
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 3952093563504498671L;
	
	private static final Logger logger = Logger.getLogger(TopicAjax.class);
	
	public void doGet(HttpServletRequest request,HttpServletResponse response){
		
	}

	public void doPost(HttpServletRequest request,HttpServletResponse response)
		throws ServletException, IOException 
	{
		response.setContentType("text/HTML;charset=UTF-8"); 
		PrintWriter out = response.getWriter();
		String act = ParamUtils.getStringParameter(request,"act");
		if(act.equals("replys")){
			int topicId = ParamUtils.getIntParameter(request,"topicId");
			TopicParameter param  = new TopicParameter();
			param.setTopicId(topicId);
			param.setRows(100);
			param.setOrderBy((byte)1);
			List<ReplyModel> list = this.getReplyService().findReplyByTopicId(param);
			List<ReplyView> vlist = BeanUtils.copyList(list,BeanLocator.REPLYVIEW);
			String str = ViewCoder.findReplys(request,vlist,null);
			if(Validator.isEmpty(str)){
				out.print("<div class=\"tr\"><span style=\"margin-left:30px;\">[<a href=\"");
				out.print("post.jsp?forumId=");
				out.print(this.getTopicService().findById(topicId).getForumId());
				out.print("&fpage=");
				out.print(ParamUtils.getStringParameter(request,"fpage","1"));
				out.print("&topicId=");
				out.print(topicId);
				out.print("&act=addreply");
				out.print("\">抢个沙发</a>]</span></div>");
			}else{
				out.print(str);
			}
		}
		else if(act.equals("deltopics")){
			out.print(this.deleteTopics(request,response));
		}
		else if(act.equals("delreplys")){
			out.print(this.deleteReplys(request,response));
		}
		else if(act.equals("untrashtopics")){
			out.print(this.untrashTopics(request,response));
		}
		else if(act.equals("untrashreplys")){
			out.print(this.untrashReplys(request,response));
		}
		out.close();
	}
	
	public String untrashTopics(HttpServletRequest request,HttpServletResponse response){
		List<Integer> list = StringHelper.stringToIntegerList(ParamUtils.getStringParameter(request,"ids"),"|");
		if(Validator.isEmpty(list)){
			return MessageUtils.getMessage("error_parameter");
		}else{
			try {
				this.getTopicService().trash(list,false);
				return MessageUtils.getMessage("success");
			} catch (ClubException e) {
				logger.error(e.toString());
				return MessageUtils.getMessage("error");
			}	
		}
	}
	
	public String untrashReplys(HttpServletRequest request,HttpServletResponse response){
		List<Integer> list = StringHelper.stringToIntegerList(ParamUtils.getStringParameter(request,"ids"),"|");
		if(Validator.isEmpty(list)){
			return MessageUtils.getMessage("error_parameter");
		}else{
			try {
				this.getReplyService().trash(list,false);		
				return MessageUtils.getMessage("success");
			} catch (ClubException e) {
				logger.error(e.toString());
				return MessageUtils.getMessage("error");
			}	
		}
	}
	
	public String deleteTopics(HttpServletRequest request,HttpServletResponse response){
		List<Integer> list = StringHelper.stringToIntegerList(ParamUtils.getStringParameter(request,"ids"),"|");
		if(Validator.isEmpty(list)){
			return MessageUtils.getMessage("error_parameter");
		}else{
			try {
				this.getTopicService().delete(list);
				return MessageUtils.getMessage("success");
			} catch (ClubException e) {
				logger.error(e.toString());
				return MessageUtils.getMessage("error");
			}	
		}
	}
	
	public String deleteReplys(HttpServletRequest request,HttpServletResponse response){
		List<Integer> list = StringHelper.stringToIntegerList(ParamUtils.getStringParameter(request,"ids"),"|");
		if(Validator.isEmpty(list)){
			return MessageUtils.getMessage("error_parameter");
		}else{
			this.getReplyService().delete(list);
			return MessageUtils.getMessage("success");
		}
	}
	
	public TopicService getTopicService() {
		return ServiceWrapper.<TopicService>getSingletonInstance(ServiceLocator.TOPIC);
	}
	
	public ReplyService getReplyService() {
		return ServiceWrapper.<ReplyService>getSingletonInstance(ServiceLocator.REPLY);
	}
}