package com.sinosoft.cm.common;


import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import nl.justobjects.pushlet.util.Sys;
/**
 * 时间格式转换类
 * @author Administrator
 *
 */
public class DateUtil {
	private static SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	private static SimpleDateFormat formatterTime = new SimpleDateFormat("HH:mm");

	public DateUtil() {
	}
	/**
	 * util格式date想sql格式date转换
	 * @param date
	 * @return
	 */
	public static java.sql.Date toSqlDate(java.util.Date date){
		return new java.sql.Date(date.getTime());
		
	}
	/**
	 * sql格式date向util格式date转换
	 * @param date
	 * @return
	 */
	public static java.util.Date toUtildate(java.sql.Date date){
		return new java.util.Date(date.getTime());
	}
	/**
	 * sql格式date转换为字符串
	 * @param date
	 * @return
	 */
	public static String toString(java.sql.Date date){
		return toString(toUtildate(date));
	}
	/**
	 * 字符串转换为sql格式date
	 * @param dateString
	 * @return
	 */
	public static java.sql.Date toSqlDate(String dateString){
		return toSqlDate(toData(dateString));
	}
	/**
	 * util格式date转换为字符串
	 * @param date
	 * @return
	 */
	public static String toString(java.util.Date date){
			return formatter.format(date);
		
	}
	
	public static String toTimeString(java.util.Date date){
		return formatterTime.format(date);
	
}
	/**
	 * 字符串转换为util格式date
	 * @param dateString
	 * @return
	 */
	public static java.util.Date toData(String dateString){
		try {
			return formatter.parse(dateString);
		} catch (ParseException e) {
			e.printStackTrace();
		}
		return null;
	}
	/**
	 * 获取间隔时间集合
	 * @param dateTime
	 * @param n
	 * @param timeInterval
	 * @return
	 */
	public static List<String> getUitlDates(String dateTime,int n,int timeInterval){
		List<String> dateString=new ArrayList<String>();
		for(int index=0;index<n;index++){
			Date temDate=DateUtil.toData(dateTime);
			temDate.setSeconds(DateUtil.toData(dateTime).getSeconds()-(n-index-1)*timeInterval);
			dateString.add(formatter.format(temDate));
		}
		System.out.println(dateString);
		return dateString;
	}
	
	public static List<String> dateStringToDateString(List<String> list){
		List<String> dateList=new ArrayList<String>();
		for(String item : list){
			Date temDate=DateUtil.toData(item);
			dateList.add(formatterTime.format(temDate));
		}
		return dateList;
	}
/*	public static void main(String[] args) {
		System.out.println(
		DateUtil.dateStringToDateString(DateUtil.getUitlDates("2012-12-12 13:12:12", 10, 3)));
	}*/

}