示例#1
1
  /**
   * Finds the next occurrence for monthly recurrence.
   *
   * @param startDate the start date of the previous calendar item.
   * @param endDate the end date of the previous calendar item.
   * @param lastDay if <tt>true</tt> we are interested in last day of the month
   * @return the next item
   */
  public CalendarItemTimerTask nextMonth(Date startDate, Date endDate, boolean lastDay) {
    long duration = sourceTask.getEndDate().getTime() - sourceTask.getStartDate().getTime();
    Calendar cal = Calendar.getInstance();
    cal.setTime(startDate);
    cal = incrementMonths(cal, lastDay, period);
    Date currentDate = new Date();
    if (cal.getTimeInMillis() + duration < currentDate.getTime()) {
      Calendar cal2 = Calendar.getInstance();
      cal2.setTime(currentDate);
      int years = cal2.get(Calendar.YEAR) - cal.get(Calendar.YEAR);
      int months = (years * 12) + (cal2.get(Calendar.MONTH) - cal.get(Calendar.MONTH));
      int monthsToAdd = months;
      monthsToAdd -= months % period;
      cal = incrementMonths(cal, lastDay, monthsToAdd);
      if (cal.getTimeInMillis() + duration < currentDate.getTime()) {
        cal = incrementMonths(cal, lastDay, period);
      }
    }

    Calendar cal2 = (Calendar) cal.clone();
    cal.set(Calendar.HOUR_OF_DAY, 0);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);
    cal.set(Calendar.MILLISECOND, 0);
    while (deletedInstances.contains(cal.getTime())) {
      cal = incrementMonths(cal, lastDay, period);
      cal2 = incrementMonths(cal2, lastDay, period);
    }

    startDate = cal2.getTime();
    endDate = new Date(startDate.getTime() + duration);
    if (dateOutOfRange(endDate)) {
      return null;
    }
    boolean executeNow = false;
    if (startDate.before(currentDate)) {
      executeNow = true;
    }

    return new CalendarItemTimerTask(
        sourceTask.getStatus(), startDate, endDate, sourceTask.getId(), executeNow, this);
  }
示例#2
0
  /**
   * Finds the occurrence of the events in the next months
   *
   * @param startDate the start date if the calendar item
   * @param dayOfWeekInMonth the number of week days occurrences
   * @return the date of the next occurrence
   */
  private Date getMonthNStartDate(Date startDate, int dayOfWeekInMonth) {
    Calendar cal = Calendar.getInstance();
    cal.setTime(startDate);

    if (dayOfWeekInMonth == -1) {
      Date result = null;
      cal.set(Calendar.DAY_OF_WEEK_IN_MONTH, dayOfWeekInMonth);
      for (int day : allowedDaysOfWeek) {
        cal.set(Calendar.DAY_OF_WEEK, day);
        if (result == null || result.before(cal.getTime())) result = cal.getTime();
      }
      return result;
    } else
      while (dayOfWeekInMonth > 0) {
        int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);
        if (allowedDaysOfWeek.contains(dayOfWeek)) dayOfWeekInMonth--;
        if (dayOfWeekInMonth > 0) cal.add(Calendar.DAY_OF_MONTH, 1);
      }
    return cal.getTime();
  }
示例#3
0
  /**
   * Finds the next occurrence for monthly Nth recurrence.
   *
   * @param startDate the start date of the previous calendar item.
   * @param endDate the end date of the previous calendar item.
   * @return the next item
   */
  public CalendarItemTimerTask nextMonthN(Date startDate, Date endDate) {
    int dayOfWeekInMonth = (patternSpecific2 == 5 ? -1 : patternSpecific2);
    long duration = sourceTask.getEndDate().getTime() - sourceTask.getStartDate().getTime();
    Calendar cal = Calendar.getInstance();
    cal.setTime(startDate);
    cal.set(Calendar.DAY_OF_MONTH, 1);
    cal.add(Calendar.MONTH, period);
    cal.setTime(getMonthNStartDate(cal.getTime(), dayOfWeekInMonth));
    Date currentDate = new Date();
    if (cal.getTimeInMillis() + duration < currentDate.getTime()) {
      Calendar cal2 = Calendar.getInstance();
      cal2.setTime(currentDate);
      int years = cal2.get(Calendar.YEAR) - cal.get(Calendar.YEAR);
      int months = (years * 12) + (cal2.get(Calendar.MONTH) - cal.get(Calendar.MONTH));
      int monthsToAdd = months;
      monthsToAdd -= months % period;
      cal.set(Calendar.DAY_OF_MONTH, 1);
      cal.add(Calendar.MONTH, monthsToAdd);
      cal.setTime(getMonthNStartDate(cal.getTime(), dayOfWeekInMonth));
      if (cal.getTimeInMillis() + duration < currentDate.getTime()) {
        cal.set(Calendar.DAY_OF_MONTH, 1);
        cal.add(Calendar.MONTH, monthsToAdd);
        cal.setTime(getMonthNStartDate(cal.getTime(), dayOfWeekInMonth));
      }
    }

    Calendar cal2 = (Calendar) cal.clone();
    cal.set(Calendar.HOUR_OF_DAY, 0);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);
    cal.set(Calendar.MILLISECOND, 0);
    while (deletedInstances.contains(cal.getTime())) {
      cal.set(Calendar.DAY_OF_MONTH, 1);
      cal.add(Calendar.MONTH, period);
      startDate = null;
      for (int dayOfWeek : allowedDaysOfWeek) {
        cal.set(Calendar.DAY_OF_WEEK, dayOfWeek);
        cal.set(Calendar.DAY_OF_WEEK_IN_MONTH, dayOfWeekInMonth);
        if ((cal.after(startDate) && dayOfWeekInMonth == -1)
            || (cal.before(startDate) && dayOfWeekInMonth != -1)
            || startDate == null) {
          startDate = cal.getTime();
          cal2.set(Calendar.YEAR, cal.get(Calendar.YEAR));
          cal2.set(Calendar.MONTH, cal.get(Calendar.MONTH));
          cal2.set(Calendar.DATE, cal.get(Calendar.DATE));
        }
      }
    }

    startDate = cal2.getTime();
    endDate = new Date(startDate.getTime() + duration);

    if (dateOutOfRange(endDate)) return null;

    boolean executeNow = false;
    if (startDate.before(currentDate)) {
      executeNow = true;
    }

    return new CalendarItemTimerTask(
        sourceTask.getStatus(), startDate, endDate, sourceTask.getId(), executeNow, this);
  }
示例#4
0
  /**
   * Calculates and creates the next calendar item.
   *
   * @param previousStartDate the start date of the previous occurrence.
   * @param previousEndDate the end date of the previous occurrence.
   * @return the new calendar item or null if there are no more calendar items from that recurrent
   *     series.
   */
  public CalendarItemTimerTask next(Date previousStartDate, Date previousEndDate) {
    if (dateOutOfRange(new Date())) {
      return null;
    }
    Date startDate = previousStartDate;
    Date endDate = null;
    boolean executeNow = false;
    long duration = sourceTask.getEndDate().getTime() - sourceTask.getStartDate().getTime();
    switch (patternType) {
      case Day:
        {
          startDate = new Date(startDate.getTime() + period * 60000);
          endDate = new Date(previousEndDate.getTime() + period * 60000);
          Date currentDate = new Date();
          if (endDate.before(currentDate)) {
            long offset = currentDate.getTime() - endDate.getTime();
            offset -= offset % (period * 60000);
            if (endDate.getTime() + offset < currentDate.getTime()) {
              offset += period * 60000;
            }

            startDate = new Date(startDate.getTime() + offset);
          }

          Calendar cal = Calendar.getInstance();
          cal.setTime(startDate);
          Calendar cal2 = (Calendar) cal.clone();
          cal.set(Calendar.HOUR_OF_DAY, 0);
          cal.set(Calendar.MINUTE, 0);
          cal.set(Calendar.SECOND, 0);
          cal.set(Calendar.MILLISECOND, 0);
          while (deletedInstances.contains(cal.getTime())) {
            cal.add(Calendar.MINUTE, period);
            cal2.add(Calendar.MINUTE, period);
          }

          if (dateOutOfRange(cal.getTime())) {
            return null;
          }
          startDate = cal2.getTime();
          endDate = new Date(startDate.getTime() + duration);
          if (startDate.before(currentDate)) {
            executeNow = true;
          }

          return new CalendarItemTimerTask(
              sourceTask.getStatus(), startDate, endDate, sourceTask.getId(), executeNow, this);
        }
      case Week:
        {
          Calendar cal = Calendar.getInstance();
          /** The enum for the firstDow field is the same as Calendar day of week enum + 1 day */
          cal.setFirstDayOfWeek(firstDow + 1);
          cal.setTime(startDate);
          int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);
          int index = allowedDaysOfWeek.indexOf(dayOfWeek);
          if (++index < allowedDaysOfWeek.size()) {
            cal.set(Calendar.DAY_OF_WEEK, allowedDaysOfWeek.get(index));
            startDate = cal.getTime();
            endDate = new Date(startDate.getTime() + duration);
          } else {
            cal.set(Calendar.DAY_OF_WEEK, allowedDaysOfWeek.get(0));
            cal.add(Calendar.WEEK_OF_YEAR, period);
            startDate = cal.getTime();
            endDate = new Date(startDate.getTime() + duration);
          }
          Date currentDate = new Date();
          if (endDate.before(currentDate)) {
            cal.set(Calendar.DAY_OF_WEEK, allowedDaysOfWeek.get(0));
            endDate = new Date(cal.getTimeInMillis() + duration);
            long offset = (currentDate.getTime() - endDate.getTime());

            // 1 week = 604800000 is milliseconds
            offset -= offset % (period * 604800000);
            if (endDate.getTime() + offset < currentDate.getTime()) {
              cal.add(Calendar.WEEK_OF_YEAR, (int) (offset / (period * 604800000)));
              int i = 1;
              while (((cal.getTimeInMillis() + duration) < (currentDate.getTime()))) {
                if (i == allowedDaysOfWeek.size()) {
                  cal.add(Calendar.WEEK_OF_YEAR, period);
                  i = 0;
                }
                cal.set(Calendar.DAY_OF_WEEK, allowedDaysOfWeek.get(i));
                i++;
              }

              startDate = cal.getTime();
            } else {
              startDate = new Date(cal.getTimeInMillis() + offset);
            }
          }

          cal.setTime(startDate);
          Calendar cal2 = (Calendar) cal.clone();
          cal.set(Calendar.HOUR_OF_DAY, 0);
          cal.set(Calendar.MINUTE, 0);
          cal.set(Calendar.SECOND, 0);
          cal.set(Calendar.MILLISECOND, 0);
          dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);
          index = allowedDaysOfWeek.indexOf(dayOfWeek) + 1;
          while (deletedInstances.contains(cal.getTime())) {
            if (index >= allowedDaysOfWeek.size()) {
              index = 0;
              cal.add(Calendar.WEEK_OF_YEAR, period);
              cal2.add(Calendar.WEEK_OF_YEAR, period);
            }
            cal.set(Calendar.DAY_OF_WEEK, allowedDaysOfWeek.get(index));
            cal2.set(Calendar.DAY_OF_WEEK, allowedDaysOfWeek.get(index));
            index++;
          }
          startDate = cal2.getTime();
          endDate = new Date(startDate.getTime() + duration);
          if (dateOutOfRange(endDate)) return null;
          if (startDate.before(currentDate)) {
            executeNow = true;
          }

          return new CalendarItemTimerTask(
              sourceTask.getStatus(), startDate, endDate, sourceTask.getId(), executeNow, this);
        }
      case Month:
      case MonthEnd:
      case HjMonth:
      case HjMonthEnd:
        {
          return nextMonth(startDate, endDate, false);
        }
      case MonthNth:
      case HjMonthNth:
        {
          if (patternSpecific1 == 0x7f && patternSpecific2 == 0x05) {
            return nextMonth(startDate, endDate, true);
          }

          return nextMonthN(startDate, endDate);
        }
    }
    return null;
  }