uicrontrigger.java

定时器开源项目, 相对于 jcrontab, Quartz 算是更完整的一个项目, 随著开发的版本上来, 他已经脱离只是写在程序里面的计时器, 在指定的时间或区间, 处理所指定的事件. 也加入了 se

                    while ((day + daysToAdd + 7) <= lDay)
                        daysToAdd += 7;

                    day += daysToAdd;
                } else if (nthdayOfWeek != 0) { // are we looking for the Nth
                    // XXX day in the month?
                    int dow = ((Integer) daysOfWeek.first()).intValue(); // desired
                    // d-o-w
                    int cDow = cl.get(Calendar.DAY_OF_WEEK); // current d-o-w
                    int daysToAdd = 0;
                    if (cDow < dow) daysToAdd = dow - cDow;
                    else if (cDow > dow) daysToAdd = dow + (7 - cDow);

                    day += daysToAdd;
                    int weekOfMonth = day / 7;
                    if (day % 7 > 0) weekOfMonth++;

                    daysToAdd = (nthdayOfWeek - weekOfMonth) * 7;
                    day += daysToAdd;
                    if (daysToAdd < 0 || day > getLastDayOfMonth(mon)) {
                        cl.set(Calendar.SECOND, 0);
                        cl.set(Calendar.MINUTE, 0);
                        cl.set(Calendar.HOUR_OF_DAY, 0);
                        cl.set(Calendar.DAY_OF_MONTH, 1);
                        cl.set(Calendar.MONTH, mon); // no '- 1' here because
                        // we are promoting the
                        // month
                        continue;
                    }
                } else {
                    int cDow = cl.get(Calendar.DAY_OF_WEEK); // current d-o-w
                    int dow = ((Integer) daysOfWeek.first()).intValue(); // desired
                    // d-o-w
                    st = daysOfWeek.tailSet(new Integer(cDow));
                    if (st != null && st.size() > 0) {
                        dow = ((Integer) st.first()).intValue();
                    }

                    int daysToAdd = 0;
                    if (cDow < dow) daysToAdd = dow - cDow;
                    if (cDow > dow) daysToAdd = dow + (7 - cDow);

                    int lDay = getLastDayOfMonth(mon);

                    if (day + daysToAdd > lDay) { // will we pass the end of
                        // the month?
                        cl.set(Calendar.SECOND, 0);
                        cl.set(Calendar.MINUTE, 0);
                        cl.set(Calendar.HOUR_OF_DAY, 0);
                        cl.set(Calendar.DAY_OF_MONTH, 1);
                        cl.set(Calendar.MONTH, mon); // no '- 1' here because
                        // we are promoting the
                        // month
                        continue;
                    } else if (daysToAdd > 0) { // are we swithing days?
                        cl.set(Calendar.SECOND, 0);
                        cl.set(Calendar.MINUTE, 0);
                        cl.set(Calendar.HOUR_OF_DAY, 0);
                        cl.set(Calendar.DAY_OF_MONTH, day + daysToAdd);
                        cl.set(Calendar.MONTH, mon - 1); // '- 1' because
                        // calendar is 0-based
                        // for this field, and
                        // we are 1-based
                        continue;
                    }
                }
            } else { // dayOfWSpec && !dayOfMSpec
                throw new UnsupportedOperationException(
                        "Support for specifying both a day-of-week AND a day-of-month parameter is not implemented."); // TODO:
            }
            cl.set(Calendar.DAY_OF_MONTH, day);

            mon = cl.get(Calendar.MONTH) + 1; // '+ 1' because calendar is
            // 0-based for this field, and we
            // are 1-based
            int year = cl.get(Calendar.YEAR);
            t = -1;

            // get month...................................................
            st = months.tailSet(new Integer(mon));
            if (st != null && st.size() != 0) {
                t = mon;
                mon = ((Integer) st.first()).intValue();
            } else {
                mon = ((Integer) months.first()).intValue();
                year++;
            }
            if (mon != t) {
                cl.set(Calendar.SECOND, 0);
                cl.set(Calendar.MINUTE, 0);
                cl.set(Calendar.HOUR_OF_DAY, 0);
                cl.set(Calendar.DAY_OF_MONTH, 1);
                cl.set(Calendar.MONTH, mon - 1); // '- 1' because calendar is
                // 0-based for this field, and
                // we are 1-based
                cl.set(Calendar.YEAR, year);
                continue;
            }
            cl.set(Calendar.MONTH, mon - 1); // '- 1' because calendar is
            // 0-based for this field, and we
            // are 1-based

            year = cl.get(Calendar.YEAR);
            t = -1;

            // get year...................................................
            st = years.tailSet(new Integer(year));
            if (st != null && st.size() != 0) {
                t = year;
                year = ((Integer) st.first()).intValue();
            } else
                return null; // ran out of years...

            if (year != t) {
                cl.set(Calendar.SECOND, 0);
                cl.set(Calendar.MINUTE, 0);
                cl.set(Calendar.HOUR_OF_DAY, 0);
                cl.set(Calendar.DAY_OF_MONTH, 1);
                cl.set(Calendar.MONTH, mon - 1); // '- 1' because calendar is
                // 0-based for this field, and
                // we are 1-based
                cl.set(Calendar.YEAR, year);
                continue;
            }
            cl.set(Calendar.YEAR, year);

            gotOne = true;
        } // while( !done )

        return cl.getTime();
    }

    private Date getTimeBefore(Date endTime) // TODO: implement
    {
        return null;
    }

    public boolean isLeapYear() {
        Calendar cl = Calendar.getInstance(timeZone);
        int year = cl.get(Calendar.YEAR);

        if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) return true;
        else
            return false;
    }

    public int getLastDayOfMonth(int monthNum) {

        switch (monthNum) {
        case 1:
            return 31;
        case 2:
            return (isLeapYear()) ? 29 : 28;
        case 3:
            return 31;
        case 4:
            return 30;
        case 5:
            return 31;
        case 6:
            return 30;
        case 7:
            return 31;
        case 8:
            return 31;
        case 9:
            return 30;
        case 10:
            return 31;
        case 11:
            return 30;
        case 12:
            return 31;
        default:
            throw new IllegalArgumentException("Illegal month number: "
                    + monthNum);
        }
    }

    public Integer[] getSecondsValues() {
        Integer list[] = new Integer[60];
        for (int i = 0; i < 60; i++) {
            list[i] = new Integer(i);
        }

        return list;
    }

    public Integer[] getSecondsLabels() {
        return getSecondsValues();
    }

    public Integer[] getSeconds() {
        Integer list[] = new Integer[seconds.size()];
        if (seconds != null) {
            int i = 0;
            for (Iterator it = seconds.iterator(); it.hasNext(); i++) {
                list[i] = (Integer) it.next();
            }
        }
        return list;
    }

    public void setSeconds(Integer[] val) {
        if (seconds != null) seconds.clear();
        else
            seconds = new TreeSet();

        for (int i = 0; i < val.length; i++) {
            seconds.add(val[i]);
        }
    }

    public Integer[] getMinutesValues() {
        Integer list[] = new Integer[60];
        for (int i = 0; i < 60; i++) {
            list[i] = new Integer(i);
        }

        return list;
    }

    public Integer[] getMinutesLabels() {
        return getMinutesValues();
    }

    public Integer[] getMinutes() {
        Integer list[] = new Integer[minutes.size()];
        if (minutes != null) {
            int i = 0;
            for (Iterator it = minutes.iterator(); it.hasNext(); i++) {
                list[i] = (Integer) it.next();
            }
        }
        return list;
    }

    public void setMinutes(Integer[] val) {
        if (minutes != null) minutes.clear();
        else
            minutes = new TreeSet();

        for (int i = 0; i < val.length; i++) {
            minutes.add(val[i]);
        }
    }

    public Integer[] getHoursValues() {
        Integer list[] = new Integer[24];
        for (int i = 0; i < 24; i++) {
            list[i] = new Integer(i);
        }

        return list;
    }

    public String[] getHoursLabels() {
        String vals[] = {"12AM (Midnight)", "1AM", "2AM", "3AM", "4AM", "5AM",
                "6AM", "7AM", "8AM", "9AM", "10AM", "11AM", "12PM (Noon)",
                "1PM", "2PM", "3PM", "4PM", "5PM", "6PM", "7PM", "8PM", "9PM",
                "10PM", "11PM"};
        return vals;
    }

    public Integer[] getHours() {
        Integer list[] = new Integer[hours.size()];
        if (hours != null) {
            int i = 0;
            for (Iterator it = hours.iterator(); it.hasNext(); i++) {
                list[i] = (Integer) it.next();
            }
        }
        return list;
    }

    public void setHours(Integer[] val) {
        if (hours != null) hours.clear();
        else
            hours = new TreeSet();

        for (int i = 0; i < val.length; i++) {
            hours.add(val[i]);
        }
    }

    public Integer[] getDaysOfMonthValues() {
        Integer list[] = new Integer[31];
        for (int i = 0; i < 31; i++) {
            list[i] = new Integer(i + 1);
        }

        return list;
    }

    public Integer[] getDaysOfMonthLabels() {
        return getDaysOfMonthValues();
    }

    public Integer[] getDaysOfMonth() {
        Integer list[] = new Integer[daysOfMonth.size()];
        if (daysOfMonth != null) {
            int i = 0;
            for (Iterator it = daysOfMonth.iterator(); it.hasNext(); i++) {
                list[i] = (Integer) it.next();
            }
        }
        return list;
    }

    public void setDaysOfMonth(Integer[] val) {
        if (daysOfMonth != null) daysOfMonth.clear();
        else
            daysOfMonth = new TreeSet();

        for (int i = 0; i < val.length; i++) {
            daysOfMonth.add(val[i]);
        }
        daysOfWeek.clear();
        daysOfWeek.add(NO_SPEC);
    }

    public Integer[] getMonthsValues() {
        Integer list[] = new Integer[12];
        for (int i = 0; i < 12; i++) {
            list[i] = new Integer(i + 1);
        }

        return list;
    }

    public String[] getMonthsLabels() {
        String vals[] = {"January", "February", "March", "April", "May",
                "June", "July", "August", "September", "October", "November",
                "December"};
        return vals;
    }

    public Integer[] getMonths() {
        Integer list[] = new Integer[months.size()];
        if (months != null) {
            int i = 0;
            for (Iterator it = months.iterator(); it.hasNext(); i++) {
                list[i] = (Integer) it.next();
            }
        }
        return list;
    }

    public void setMonths(Integer[] val) {
        if (months != null) months.clear();
        else
            months = new TreeSet();

        for (int i = 0; i < val.length; i++) {
            months.add(val[i]);
        }
    }

    public String[] getDaysOfWeekLabels() {
        String list[] = {"Sunday", "Monday", "Tuesday", "Wednesday",
                "Thursday", "Friday", "Saturday"};
        return list;
    }

    public Integer[] getDaysOfWeekValues() {
        Integer list[] = new Integer[7];
        for (int i = 0; i < 7; i++)
            list[i] = new Integer(i + 1);
        return list;
    }

    public Integer[] getDaysOfWeek() {
        Integer list[] = new Integer[daysOfWeek.size()];
        if (daysOfWeek != null) {
            int i = 0;
            for (Iterator it = daysOfWeek.iterator(); it.hasNext(); i++) {
                list[i] = (Integer) it.next();
            }
        }
        return list;
    }

    public void setDaysOfWeek(Integer[] val) {
        if (daysOfWeek != null) daysOfWeek.clear();
        else
            daysOfWeek = new TreeSet();

        for (int i = 0; i < val.length; i++) {
            daysOfWeek.add(val[i]);
        }

        daysOfMonth.clear();
        daysOfMonth.add(NO_SPEC);
    }

    public Integer[] getYearsValues() {
        Integer list[] = new Integer[20];
        Calendar now = Calendar.getInstance();
        int year = now.get(Calendar.YEAR);
        for (int i = 0; i < 20; i++) {
            list[i] = new Integer(i + year);
        }

        return list;
    }

    public Integer[] getYearsLabels() {
        return getYearsValues();
    }

    public Integer[] getYears() {
        Integer list[] = new Integer[years.size()];
        if (years != null) {
            int i = 0;
            for (Iterator it = years.iterator(); it.hasNext(); i++) {
                list[i] = (Integer) it.next();
            }
        }
        return list;
    }

    public void setYears(Integer[] val) {
        if (years != null) years.clear();
        else
            years = new TreeSet();

        for (int i = 0; i < val.length; i++) {
            years.add(val[i]);
        }
    }

    public static void main(String[] argv) {
        CronTrigger ct = new CronTrigger("a", "a");
        try {
            ct.setCronExpression("0 * * * * ? *");
        } catch (ParseException e) {
            //            log.error("caught an exception", e);
        }
        ct.setStartTime(new Date());
        ct.setTimeZone(TimeZone.getDefault());
        System.out.println(ct.getExpressionSummary());
        ct.computeFirstFireTime(null);

        UICronTrigger uict = new UICronTrigger("a", "a");
        Integer set[] = new Integer[1];
        set[0] = new Integer(1);
        uict.setSeconds(set);
        System.out.println(ct.getExpressionSummary());
        uict.computeFirstFireTime(null);

    }
}