package com.yc.action.grid;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import java.util.Properties;

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

import org.springframework.context.annotation.Scope;
import org.springframework.dao.DataAccessException;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.google.gson.Gson;
import com.yc.factory.FactoryBean;
import com.yc.utils.ThreeJSON;


/***
 * 全局配置处理代码
 * 
 **/
@SuppressWarnings("all")
@Controller("sysconfig")
@Scope("prototype")
@RequestMapping("/sysconfig.do")
public class SysConfig extends com.yc.action.BaseAction {
  

    @RequestMapping(params = "m=save")
    public void save(HttpServletRequest request, HttpServletResponse resp) {
	String s=request.getParameter("p");
	String[] ts=s.split(",");
	String[] parameterName=new String[ts.length];
	String[] parameterValue=new String[ts.length];
	for(int i=0;i<ts.length;i++){
	    String[] ss=ts[i].split(";");
	    parameterName[i]=ss[0];
	    parameterValue[i]=ss[1];
	}
	this.writeProperties(FactoryBean.getCtx().getServletContext().getRealPath("/")+"WEB-INF"+File.separator+"system.config.properties",
		parameterName, parameterValue);
	
    }
    @RequestMapping(params = "m=load")
    public void load(HttpServletRequest request, HttpServletResponse resp) {
		String s=this.readProperties(FactoryBean.getCtx().getServletContext().getRealPath("/")+"WEB-INF"+File.separator+"system.config.properties");
			this.printJson(resp, s);
	}	
  //读取properties的全部信息
    public  String readProperties(String filePath) {
     Properties props = new Properties();
     InputStream in=null;
     String s="{";
        try {
          in = new BufferedInputStream (new FileInputStream(filePath));
         props.load(in);
            Enumeration en = props.propertyNames();
            	int i=0;
             while (en.hasMoreElements()) {
              String key = (String) en.nextElement();
              if(i>0)
                    s+=",'"+key+"':'"+ props.getProperty (key)+"'";
              else
        	  s+="'"+key+"':'"+ props.getProperty (key)+"'";
              i++;
                }
             s+="}";
        } catch (Exception e) {
         e.printStackTrace();
        }finally{
            in=null;
        }
        return s;
    }

    //写入properties信息
    public  void writeProperties(String filePath,String[] parameterName,String[] parameterValue) {
     Properties prop = new Properties();
     InputStream fis=null;
     OutputStream fos=null;
     try {
       fis = new FileInputStream(filePath);
            //从输入流中读取属性列表（键和元素对）
            prop.load(fis);
            //调用 Hashtable 的方法 put。使用 getProperty 方法提供并行性。
            //强制要求为属性的键和值使用字符串。返回值是 Hashtable 调用 put 的结果。
             fos = new FileOutputStream(filePath);
             for(int i=0;i<parameterName.length;i++)
            prop.setProperty(parameterName[i], parameterValue[i]);
            //以适合使用 load 方法加载到 Properties 表中的格式，
            //将此 Properties 表中的属性列表（键和元素对）写入输出流
            prop.store(fos, "Update  value");
        } catch (IOException e) {
         System.err.println("Visit "+filePath+" for updating "+parameterName+" value error");
        }finally{
            fis=null;
            fos=null;
        }
    }
}