签到规则工具（1）

package com.js.ai.modules.pointwall.util;

import java.util.Calendar;
import java.util.Date;

/**
 * 
 * @ClassName: SignRule
 * @Description: TODO 用户签到规则
 * @author: 
 * @date: 
 */
public class SignRule {
	/**
     * 移位
     * @param oldHistory
     * @param moveAmount
     * @return
     */
    public static long moveByte(long oldHistory,long moveAmount){
        long moveResult = oldHistory<<moveAmount;
        long result=Long.parseLong(toFullBinaryString(moveResult), 2)+1;
        return result;
    }
    public static String toFullBinaryString(long num){
        final int size=42;
         char[] chs = new char[size];
         for(int i = 0; i < size; i++) {
             chs[size - 1 - i] = (char)(((num >> i) & 1) + '0');
         }
         return new String(chs);
 }

	/**
	 * 
	 * @Title: getScoreByRule
	 * @Description: TODO  连续签到3天获得10积分  连续签到7天获得20积分，连续签到15天获得50积分，连续签到 30天获得120积分
	 * @param signCount
	 * @return
	
	 * @return: int
	 */
	 public static int getScoreByRule(int signCount)
	    {
	        int addScore=0;
	        if(signCount==3){
	            addScore=10;
	        }else if(signCount==7){
	        	addScore=20;
	        }else if(signCount==15){
	            addScore=50;
	        }else if (signCount>=30){
	            addScore=120;
	        }
	        
	        return addScore;
	    }
	 
	 /**
	     * 获取当天的起始时间
	     * @param oldTime
	     * @param newTime
	     */
	    public static  Date getTodayStartTime(){
	        Date now=new Date();
	        Calendar calendar=Calendar.getInstance();
	        calendar.setTime(now);
	        calendar.set(Calendar.HOUR_OF_DAY,0);
	        calendar.set(Calendar.MINUTE,0);
	        calendar.set(Calendar.SECOND,0);
	        calendar.set(Calendar.MILLISECOND,0);
	        Date startTime=calendar.getTime();
	        return startTime;
	    }
	    /**
	     * 
	     * @Title: daysOfTwo
	     * @Description: TODO 两个日期相减获得的天数
	     * @param fDate
	     * @param oDate
	     * @return
	    
	     * @return: int
	     */
	    public static int daysOfTwo(Date fDate, Date oDate) {

		       Calendar aCalendar = Calendar.getInstance();

		       aCalendar.setTime(fDate);

		       int day1 = aCalendar.get(Calendar.DAY_OF_YEAR);

		       aCalendar.setTime(oDate);

		       int day2 = aCalendar.get(Calendar.DAY_OF_YEAR);

		       return day2 - day1;

		    }
}