Metacat

import java.util.Date;

  /**

   * This method will combinate given time string(in short format) to

   * current date. If the given time (e.g 10:00 AM) passed the current time

   * (e.g 2:00 PM Aug 21, 2005), then the time will set to second day,

   * 10:00 AM Aug 22, 2005. If the given time (e.g 10:00 AM) haven't passed

   * the current time (e.g 8:00 AM Aug 21, 2005) The time will set to be

   * 10:00 AM Aug 21, 2005.

   * @param givenTime  the format should be "10:00 AM " or "2:00 PM"

   * @return

   * @throws Exception

   */

  public static Date combinateCurrentDateAndGivenTime(String givenTime) throws Exception

  {

     Date givenDate = parseTime(givenTime);

     Date newDate = null;

     Date now = new Date();

     String currentTimeString = getTimeString(now);

     Date currentTime = parseTime(currentTimeString); 

     if ( currentTime.getTime() >= givenDate.getTime())

     {

        MetaCatUtil.debugMessage("Today already pass the given time, we should set it as tomorrow", 30);

        String dateAndTime = getDateString(now) + " " + givenTime;

        Date combinationDate = parseDateTime(dateAndTime);

        // new date should plus 24 hours to make is the second day

        newDate = new Date(combinationDate.getTime()+24*3600*1000);

     }

     else

     {

         MetaCatUtil.debugMessage("Today haven't pass the given time, we should it as today", 2);

         String dateAndTime = getDateString(now) + " " + givenTime;

         newDate = parseDateTime(dateAndTime);

     }

     MetaCatUtil.debugMessage("final setting time is "+ newDate.toString(), 20);

     return newDate;

  }

  /*

   * parse a given string to Time in short format.

   * For example, given time is 10:00 AM, the date will be return as

   * Jan 1 1970, 10:00 AM

   */

  private static Date parseTime(String timeString) throws Exception

  {

    DateFormat format = DateFormat.getTimeInstance(DateFormat.SHORT);

    Date time = format.parse(timeString); 

    System.out.println("Date string is after parse a time string "+time.toString());

    return time;

  }

  /*

   * Pasre a given string to date and time. Date format is long and time

   * format is short.

   */

  private static Date parseDateTime(String timeString) throws Exception

  {

    DateFormat format = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.SHORT);

    Date time = format.parse(timeString);

    System.out.println("Date string is after parse a time string "+time.toString());

    return time;

  }

  /*

   * Get a date string from a Date object. The date format will be long

   */

  private static String getDateString(Date now)

  {

     DateFormat df = DateFormat.getDateInstance(DateFormat.LONG);

     String s = df.format(now);

     System.out.println("Today is " + s);

     return s;

  }

  /*

   * Get a time string from a Date object, the time format will be short

   */

  private static String getTimeString(Date now)

  {

     DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT);

     String s = df.format(now);

     System.out.println("Time is " + s);

     return s;

  }