| Method from org.quartz.CronExpression Detail: |
|---|
 protected void addToSet(int val,
int end,
int incr,
int type) throws ParseException {
TreeSet set = getSet(type);
if (type == SECOND || type == MINUTE) {
if ((val < 0 || val > 59 || end > 59) && (val != ALL_SPEC_INT)) {
throw new ParseException(
"Minute and Second values must be between 0 and 59",
-1);
}
} else if (type == HOUR) {
if ((val < 0 || val > 23 || end > 23) && (val != ALL_SPEC_INT)) {
throw new ParseException(
"Hour values must be between 0 and 23", -1);
}
} else if (type == DAY_OF_MONTH) {
if ((val < 1 || val > 31 || end > 31) && (val != ALL_SPEC_INT)
&& (val != NO_SPEC_INT)) {
throw new ParseException(
"Day of month values must be between 1 and 31", -1);
}
} else if (type == MONTH) {
if ((val < 1 || val > 12 || end > 12) && (val != ALL_SPEC_INT)) {
throw new ParseException(
"Month values must be between 1 and 12", -1);
}
} else if (type == DAY_OF_WEEK) {
if ((val == 0 || val > 7 || end > 7) && (val != ALL_SPEC_INT)
&& (val != NO_SPEC_INT)) {
throw new ParseException(
"Day-of-Week values must be between 1 and 7", -1);
}
}
if ((incr == 0 || incr == -1) && val != ALL_SPEC_INT) {
if (val != -1) {
set.add(new Integer(val));
} else {
set.add(NO_SPEC);
}
return;
}
int startAt = val;
int stopAt = end;
if (val == ALL_SPEC_INT && incr < = 0) {
incr = 1;
set.add(ALL_SPEC); // put in a marker, but also fill values
}
if (type == SECOND || type == MINUTE) {
if (stopAt == -1) {
stopAt = 59;
}
if (startAt == -1 || startAt == ALL_SPEC_INT) {
startAt = 0;
}
} else if (type == HOUR) {
if (stopAt == -1) {
stopAt = 23;
}
if (startAt == -1 || startAt == ALL_SPEC_INT) {
startAt = 0;
}
} else if (type == DAY_OF_MONTH) {
if (stopAt == -1) {
stopAt = 31;
}
if (startAt == -1 || startAt == ALL_SPEC_INT) {
startAt = 1;
}
} else if (type == MONTH) {
if (stopAt == -1) {
stopAt = 12;
}
if (startAt == -1 || startAt == ALL_SPEC_INT) {
startAt = 1;
}
} else if (type == DAY_OF_WEEK) {
if (stopAt == -1) {
stopAt = 7;
}
if (startAt == -1 || startAt == ALL_SPEC_INT) {
startAt = 1;
}
} else if (type == YEAR) {
if (stopAt == -1) {
stopAt = 2099;
}
if (startAt == -1 || startAt == ALL_SPEC_INT) {
startAt = 1970;
}
}
for (int i = startAt; i < = stopAt; i += incr) {
set.add(new Integer(i));
}
}
|
protected void buildExpression(String expression) throws ParseException {
expressionParsed = true;
try {
if (seconds == null) {
seconds = new TreeSet();
}
if (minutes == null) {
minutes = new TreeSet();
}
if (hours == null) {
hours = new TreeSet();
}
if (daysOfMonth == null) {
daysOfMonth = new TreeSet();
}
if (months == null) {
months = new TreeSet();
}
if (daysOfWeek == null) {
daysOfWeek = new TreeSet();
}
if (years == null) {
years = new TreeSet();
}
int exprOn = SECOND;
StringTokenizer exprsTok = new StringTokenizer(expression, " \t",
false);
while (exprsTok.hasMoreTokens() && exprOn < = YEAR) {
String expr = exprsTok.nextToken().trim();
StringTokenizer vTok = new StringTokenizer(expr, ",");
while (vTok.hasMoreTokens()) {
String v = vTok.nextToken();
storeExpressionVals(0, v, exprOn);
}
exprOn++;
}
if (exprOn < = DAY_OF_WEEK) {
throw new ParseException("Unexpected end of expression.",
expression.length());
}
if (exprOn < = YEAR) {
storeExpressionVals(0, "*", YEAR);
}
} catch (ParseException pe) {
throw pe;
} catch (Exception e) {
throw new ParseException("Illegal cron expression format ("
+ e.toString() + ")", 0);
}
} |
protected int checkNext(int pos,
String s,
int val,
int type) throws ParseException {
int end = -1;
int i = pos;
if (i >= s.length()) {
addToSet(val, end, -1, type);
return i;
}
char c = s.charAt(pos);
if (c == 'L") {
if (type == DAY_OF_WEEK) {
lastdayOfWeek = true;
} else {
throw new ParseException("'L' option is not valid here. (pos=" + i + ")", i);
}
TreeSet set = getSet(type);
set.add(new Integer(val));
i++;
return i;
}
if (c == 'W") {
if (type == DAY_OF_MONTH) {
nearestWeekday = true;
} else {
throw new ParseException("'W' option is not valid here. (pos=" + i + ")", i);
}
TreeSet set = getSet(type);
set.add(new Integer(val));
i++;
return i;
}
if (c == '#") {
if (type != DAY_OF_WEEK) {
throw new ParseException("'#' option is not valid here. (pos=" + i + ")", i);
}
i++;
try {
nthdayOfWeek = Integer.parseInt(s.substring(i));
if (nthdayOfWeek < 1 || nthdayOfWeek > 5) {
throw new Exception();
}
} catch (Exception e) {
throw new ParseException(
"A numeric value between 1 and 5 must follow the '#' option",
i);
}
TreeSet set = getSet(type);
set.add(new Integer(val));
i++;
return i;
}
if (c == '-") {
i++;
c = s.charAt(i);
int v = Integer.parseInt(String.valueOf(c));
end = v;
i++;
if (i >= s.length()) {
addToSet(val, end, 1, type);
return i;
}
c = s.charAt(i);
if (c >= '0" && c < = '9") {
ValueSet vs = getValue(v, s, i);
int v1 = vs.value;
end = v1;
i = vs.pos;
}
if (i < s.length() && ((c = s.charAt(i)) == '/")) {
i++;
c = s.charAt(i);
int v2 = Integer.parseInt(String.valueOf(c));
i++;
if (i >= s.length()) {
addToSet(val, end, v2, type);
return i;
}
c = s.charAt(i);
if (c >= '0" && c < = '9") {
ValueSet vs = getValue(v2, s, i);
int v3 = vs.value;
addToSet(val, end, v3, type);
i = vs.pos;
return i;
} else {
addToSet(val, end, v2, type);
return i;
}
} else {
addToSet(val, end, 1, type);
return i;
}
}
if (c == '/") {
i++;
c = s.charAt(i);
int v2 = Integer.parseInt(String.valueOf(c));
i++;
if (i >= s.length()) {
addToSet(val, end, v2, type);
return i;
}
c = s.charAt(i);
if (c >= '0" && c < = '9") {
ValueSet vs = getValue(v2, s, i);
int v3 = vs.value;
addToSet(val, end, v3, type);
i = vs.pos;
return i;
} else {
throw new ParseException("Unexpected character '" + c + "' after '/'", i);
}
}
addToSet(val, end, 0, type);
i++;
return i;
} |
public Object clone() {
CronExpression copy = null;
try {
copy = new CronExpression(getCronExpression());
copy.setTimeZone(getTimeZone());
} catch (ParseException ex) { // never happens since the source is valid...
throw new IncompatibleClassChangeError("Not Cloneable.");
}
return copy;
} |
protected int findNextWhiteSpace(int i,
String s) {
for (; i < s.length() && (s.charAt(i) != ' " || s.charAt(i) != '\t"); i++) {
;
}
return i;
} |
public String getCronExpression() {
return cronExpression;
} |
protected int getDayOfWeekNumber(String s) {
Integer integer = (Integer) dayMap.get(s);
if (integer == null) {
return -1;
}
return integer.intValue();
} |
protected String getExpressionSetSummary(Set set) {
if (set.contains(NO_SPEC)) {
return "?";
}
if (set.contains(ALL_SPEC)) {
return "*";
}
StringBuffer buf = new StringBuffer();
Iterator itr = set.iterator();
boolean first = true;
while (itr.hasNext()) {
Integer iVal = (Integer) itr.next();
String val = iVal.toString();
if (!first) {
buf.append(",");
}
buf.append(val);
first = false;
}
return buf.toString();
} |
protected String getExpressionSetSummary(ArrayList list) {
if (list.contains(NO_SPEC)) {
return "?";
}
if (list.contains(ALL_SPEC)) {
return "*";
}
StringBuffer buf = new StringBuffer();
Iterator itr = list.iterator();
boolean first = true;
while (itr.hasNext()) {
Integer iVal = (Integer) itr.next();
String val = iVal.toString();
if (!first) {
buf.append(",");
}
buf.append(val);
first = false;
}
return buf.toString();
} |
public String getExpressionSummary() {
StringBuffer buf = new StringBuffer();
buf.append("seconds: ");
buf.append(getExpressionSetSummary(seconds));
buf.append("\n");
buf.append("minutes: ");
buf.append(getExpressionSetSummary(minutes));
buf.append("\n");
buf.append("hours: ");
buf.append(getExpressionSetSummary(hours));
buf.append("\n");
buf.append("daysOfMonth: ");
buf.append(getExpressionSetSummary(daysOfMonth));
buf.append("\n");
buf.append("months: ");
buf.append(getExpressionSetSummary(months));
buf.append("\n");
buf.append("daysOfWeek: ");
buf.append(getExpressionSetSummary(daysOfWeek));
buf.append("\n");
buf.append("lastdayOfWeek: ");
buf.append(lastdayOfWeek);
buf.append("\n");
buf.append("nearestWeekday: ");
buf.append(nearestWeekday);
buf.append("\n");
buf.append("NthDayOfWeek: ");
buf.append(nthdayOfWeek);
buf.append("\n");
buf.append("lastdayOfMonth: ");
buf.append(lastdayOfMonth);
buf.append("\n");
buf.append("years: ");
buf.append(getExpressionSetSummary(years));
buf.append("\n");
return buf.toString();
} |
public Date getFinalFireTime() {
// TODO: implement QUARTZ-423
return null;
} NOT YET IMPLEMENTED: Returns the final time that the
CronExpression will match. |
protected int getLastDayOfMonth(int monthNum,
int year) {
switch (monthNum) {
case 1:
return 31;
case 2:
return (isLeapYear(year)) ? 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);
}
} |
protected int getMonthNumber(String s) {
Integer integer = (Integer) monthMap.get(s);
if (integer == null) {
return -1;
}
return integer.intValue();
} |
public Date getNextInvalidTimeAfter(Date date) {
long difference = 1000;
//move back to the nearest second so differences will be accurate
Calendar adjustCal = Calendar.getInstance();
adjustCal.setTime(date);
adjustCal.set(Calendar.MILLISECOND, 0);
Date lastDate = adjustCal.getTime();
Date newDate = null;
//TODO: (QUARTZ-481) IMPROVE THIS! The following is a BAD solution to this problem. Performance will be very bad here, depending on the cron expression. It is, however A solution.
//keep getting the next included time until it's farther than one second
// apart. At that point, lastDate is the last valid fire time. We return
// the second immediately following it.
while (difference == 1000) {
newDate = getTimeAfter(lastDate);
difference = newDate.getTime() - lastDate.getTime();
if (difference == 1000) {
lastDate = newDate;
}
}
return new Date(lastDate.getTime() + 1000);
} Returns the next date/time after the given date/time which does
not satisfy the expression |
public Date getNextValidTimeAfter(Date date) {
return getTimeAfter(date);
} Returns the next date/time after the given date/time which
satisfies the cron expression. |
protected int getNumericValue(String s,
int i) {
int endOfVal = findNextWhiteSpace(i, s);
String val = s.substring(i, endOfVal);
return Integer.parseInt(val);
} |
protected TreeSet getSet(int type) {
switch (type) {
case SECOND:
return seconds;
case MINUTE:
return minutes;
case HOUR:
return hours;
case DAY_OF_MONTH:
return daysOfMonth;
case MONTH:
return months;
case DAY_OF_WEEK:
return daysOfWeek;
case YEAR:
return years;
default:
return null;
}
} |
protected Date getTimeAfter(Date afterTime) {
Calendar cl = Calendar.getInstance(getTimeZone());
// move ahead one second, since we're computing the time *after* the
// given time
afterTime = new Date(afterTime.getTime() + 1000);
// CronTrigger does not deal with milliseconds
cl.setTime(afterTime);
cl.set(Calendar.MILLISECOND, 0);
boolean gotOne = false;
// loop until we've computed the next time, or we've past the endTime
while (!gotOne) {
//if (endTime != null && cl.getTime().after(endTime)) return null;
if(cl.get(Calendar.YEAR) > 2999) // prevent endless loop...
return null;
SortedSet st = null;
int t = 0;
int sec = cl.get(Calendar.SECOND);
int min = cl.get(Calendar.MINUTE);
// get second.................................................
st = seconds.tailSet(new Integer(sec));
if (st != null && st.size() != 0) {
sec = ((Integer) st.first()).intValue();
} else {
sec = ((Integer) seconds.first()).intValue();
min++;
cl.set(Calendar.MINUTE, min);
}
cl.set(Calendar.SECOND, sec);
min = cl.get(Calendar.MINUTE);
int hr = cl.get(Calendar.HOUR_OF_DAY);
t = -1;
// get minute.................................................
st = minutes.tailSet(new Integer(min));
if (st != null && st.size() != 0) {
t = min;
min = ((Integer) st.first()).intValue();
} else {
min = ((Integer) minutes.first()).intValue();
hr++;
}
if (min != t) {
cl.set(Calendar.SECOND, 0);
cl.set(Calendar.MINUTE, min);
setCalendarHour(cl, hr);
continue;
}
cl.set(Calendar.MINUTE, min);
hr = cl.get(Calendar.HOUR_OF_DAY);
int day = cl.get(Calendar.DAY_OF_MONTH);
t = -1;
// get hour...................................................
st = hours.tailSet(new Integer(hr));
if (st != null && st.size() != 0) {
t = hr;
hr = ((Integer) st.first()).intValue();
} else {
hr = ((Integer) hours.first()).intValue();
day++;
}
if (hr != t) {
cl.set(Calendar.SECOND, 0);
cl.set(Calendar.MINUTE, 0);
cl.set(Calendar.DAY_OF_MONTH, day);
setCalendarHour(cl, hr);
continue;
}
cl.set(Calendar.HOUR_OF_DAY, hr);
day = cl.get(Calendar.DAY_OF_MONTH);
int mon = cl.get(Calendar.MONTH) + 1;
// '+ 1' because calendar is 0-based for this field, and we are
// 1-based
t = -1;
int tmon = mon;
// get day...................................................
boolean dayOfMSpec = !daysOfMonth.contains(NO_SPEC);
boolean dayOfWSpec = !daysOfWeek.contains(NO_SPEC);
if (dayOfMSpec && !dayOfWSpec) { // get day by day of month rule
st = daysOfMonth.tailSet(new Integer(day));
if (lastdayOfMonth) {
if(!nearestWeekday) {
t = day;
day = getLastDayOfMonth(mon, cl.get(Calendar.YEAR));
} else {
t = day;
day = getLastDayOfMonth(mon, cl.get(Calendar.YEAR));
java.util.Calendar tcal = java.util.Calendar.getInstance();
tcal.set(Calendar.SECOND, 0);
tcal.set(Calendar.MINUTE, 0);
tcal.set(Calendar.HOUR_OF_DAY, 0);
tcal.set(Calendar.DAY_OF_MONTH, day);
tcal.set(Calendar.MONTH, mon - 1);
tcal.set(Calendar.YEAR, cl.get(Calendar.YEAR));
int ldom = getLastDayOfMonth(mon, cl.get(Calendar.YEAR));
int dow = tcal.get(Calendar.DAY_OF_WEEK);
if(dow == Calendar.SATURDAY && day == 1) {
day += 2;
} else if(dow == Calendar.SATURDAY) {
day -= 1;
} else if(dow == Calendar.SUNDAY && day == ldom) {
day -= 2;
} else if(dow == Calendar.SUNDAY) {
day += 1;
}
tcal.set(Calendar.SECOND, sec);
tcal.set(Calendar.MINUTE, min);
tcal.set(Calendar.HOUR_OF_DAY, hr);
tcal.set(Calendar.DAY_OF_MONTH, day);
tcal.set(Calendar.MONTH, mon - 1);
Date nTime = tcal.getTime();
if(nTime.before(afterTime)) {
day = 1;
mon++;
}
}
} else if(nearestWeekday) {
t = day;
day = ((Integer) daysOfMonth.first()).intValue();
java.util.Calendar tcal = java.util.Calendar.getInstance();
tcal.set(Calendar.SECOND, 0);
tcal.set(Calendar.MINUTE, 0);
tcal.set(Calendar.HOUR_OF_DAY, 0);
tcal.set(Calendar.DAY_OF_MONTH, day);
tcal.set(Calendar.MONTH, mon - 1);
tcal.set(Calendar.YEAR, cl.get(Calendar.YEAR));
int ldom = getLastDayOfMonth(mon, cl.get(Calendar.YEAR));
int dow = tcal.get(Calendar.DAY_OF_WEEK);
if(dow == Calendar.SATURDAY && day == 1) {
day += 2;
} else if(dow == Calendar.SATURDAY) {
day -= 1;
} else if(dow == Calendar.SUNDAY && day == ldom) {
day -= 2;
} else if(dow == Calendar.SUNDAY) {
day += 1;
}
tcal.set(Calendar.SECOND, sec);
tcal.set(Calendar.MINUTE, min);
tcal.set(Calendar.HOUR_OF_DAY, hr);
tcal.set(Calendar.DAY_OF_MONTH, day);
tcal.set(Calendar.MONTH, mon - 1);
Date nTime = tcal.getTime();
if(nTime.before(afterTime)) {
day = ((Integer) daysOfMonth.first()).intValue();;
mon++;
}
} else if (st != null && st.size() != 0) {
t = day;
day = ((Integer) st.first()).intValue();
} else {
day = ((Integer) daysOfMonth.first()).intValue();
mon++;
}
if (day != t || mon != tmon) {
cl.set(Calendar.SECOND, 0);
cl.set(Calendar.MINUTE, 0);
cl.set(Calendar.HOUR_OF_DAY, 0);
cl.set(Calendar.DAY_OF_MONTH, day);
cl.set(Calendar.MONTH, mon - 1);
// '- 1' because calendar is 0-based for this field, and we
// are 1-based
continue;
}
} else if (dayOfWSpec && !dayOfMSpec) { // get day by day of week rule
if (lastdayOfWeek) { // are we looking for the last XXX day of
// 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;
}
if (cDow > dow) {
daysToAdd = dow + (7 - cDow);
}
int lDay = getLastDayOfMonth(mon, cl.get(Calendar.YEAR));
if (day + daysToAdd > lDay) { // did we already miss the
// last one?
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;
}
// find date of last occurance of this day in this month...
while ((day + daysToAdd + 7) < = lDay) {
daysToAdd += 7;
}
day += daysToAdd;
if (daysToAdd > 0) {
cl.set(Calendar.SECOND, 0);
cl.set(Calendar.MINUTE, 0);
cl.set(Calendar.HOUR_OF_DAY, 0);
cl.set(Calendar.DAY_OF_MONTH, day);
cl.set(Calendar.MONTH, mon - 1);
// '- 1' here because we are not promoting the month
continue;
}
} 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);
}
boolean dayShifted = false;
if (daysToAdd > 0) {
dayShifted = true;
}
day += daysToAdd;
int weekOfMonth = day / 7;
if (day % 7 > 0) {
weekOfMonth++;
}
daysToAdd = (nthdayOfWeek - weekOfMonth) * 7;
day += daysToAdd;
if (daysToAdd < 0
|| day > getLastDayOfMonth(mon, cl
.get(Calendar.YEAR))) {
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 || dayShifted) {
cl.set(Calendar.SECOND, 0);
cl.set(Calendar.MINUTE, 0);
cl.set(Calendar.HOUR_OF_DAY, 0);
cl.set(Calendar.DAY_OF_MONTH, day);
cl.set(Calendar.MONTH, mon - 1);
// '- 1' here because we are NOT 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, cl.get(Calendar.YEAR));
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;
// test for expressions that never generate a valid fire date,
// but keep looping...
if (year > 2099) {
return null;
}
// 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, 0);
// '- 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();
} |
protected Date getTimeBefore(Date endTime) {
// TODO: implement QUARTZ-423
return null;
} NOT YET IMPLEMENTED: Returns the time before the given time
that the CronExpression matches. |
public TimeZone getTimeZone() {
if (timeZone == null) {
timeZone = TimeZone.getDefault();
}
return timeZone;
} Returns the time zone for which this CronExpression
will be resolved. |
protected ValueSet getValue(int v,
String s,
int i) {
char c = s.charAt(i);
String s1 = String.valueOf(v);
while (c >= '0" && c < = '9") {
s1 += c;
i++;
if (i >= s.length()) {
break;
}
c = s.charAt(i);
}
ValueSet val = new ValueSet();
val.pos = (i < s.length()) ? i : i + 1;
val.value = Integer.parseInt(s1);
return val;
} |
protected boolean isLeapYear(int year) {
return ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0));
} |
public boolean isSatisfiedBy(Date date) {
Calendar testDateCal = Calendar.getInstance();
testDateCal.setTime(date);
testDateCal.set(Calendar.MILLISECOND, 0);
Date originalDate = testDateCal.getTime();
testDateCal.add(Calendar.SECOND, -1);
Date timeAfter = getTimeAfter(testDateCal.getTime());
return ((timeAfter != null) && (timeAfter.equals(originalDate)));
} Indicates whether the given date satisfies the cron expression. Note that
milliseconds are ignored, so two Dates falling on different milliseconds
of the same second will always have the same result here. |
public static boolean isValidExpression(String cronExpression) {
try {
new CronExpression(cronExpression);
} catch (ParseException pe) {
return false;
}
return true;
} Indicates whether the specified cron expression can be parsed into a
valid cron expression |
protected void setCalendarHour(Calendar cal,
int hour) {
cal.set(java.util.Calendar.HOUR_OF_DAY, hour);
if (cal.get(java.util.Calendar.HOUR_OF_DAY) != hour && hour != 24) {
cal.set(java.util.Calendar.HOUR_OF_DAY, hour + 1);
}
} Advance the calendar to the particular hour paying particular attention
to daylight saving problems. |
public void setTimeZone(TimeZone timeZone) {
this.timeZone = timeZone;
} Sets the time zone for which this CronExpression
will be resolved. |
protected int skipWhiteSpace(int i,
String s) {
for (; i < s.length() && (s.charAt(i) == ' " || s.charAt(i) == '\t"); i++) {
;
}
return i;
} |
protected int storeExpressionVals(int pos,
String s,
int type) throws ParseException {
int incr = 0;
int i = skipWhiteSpace(pos, s);
if (i >= s.length()) {
return i;
}
char c = s.charAt(i);
if ((c >= 'A") && (c < = 'Z") && (!s.equals("L")) && (!s.equals("LW"))) {
String sub = s.substring(i, i + 3);
int sval = -1;
int eval = -1;
if (type == MONTH) {
sval = getMonthNumber(sub) + 1;
if (sval < 0) {
throw new ParseException("Invalid Month value: '" + sub + "'", i);
}
if (s.length() > i + 3) {
c = s.charAt(i + 3);
if (c == '-") {
i += 4;
sub = s.substring(i, i + 3);
eval = getMonthNumber(sub) + 1;
if (eval < 0) {
throw new ParseException("Invalid Month value: '" + sub + "'", i);
}
}
}
} else if (type == DAY_OF_WEEK) {
sval = getDayOfWeekNumber(sub);
if (sval < 0) {
throw new ParseException("Invalid Day-of-Week value: '"
+ sub + "'", i);
}
if (s.length() > i + 3) {
c = s.charAt(i + 3);
if (c == '-") {
i += 4;
sub = s.substring(i, i + 3);
eval = getDayOfWeekNumber(sub);
if (eval < 0) {
throw new ParseException(
"Invalid Day-of-Week value: '" + sub
+ "'", i);
}
if (sval > eval) {
throw new ParseException(
"Invalid Day-of-Week sequence: " + sval
+ " > " + eval, i);
}
} else if (c == '#") {
try {
i += 4;
nthdayOfWeek = Integer.parseInt(s.substring(i));
if (nthdayOfWeek < 1 || nthdayOfWeek > 5) {
throw new Exception();
}
} catch (Exception e) {
throw new ParseException(
"A numeric value between 1 and 5 must follow the '#' option",
i);
}
} else if (c == 'L") {
lastdayOfWeek = true;
i++;
}
}
} else {
throw new ParseException(
"Illegal characters for this position: '" + sub + "'",
i);
}
if (eval != -1) {
incr = 1;
}
addToSet(sval, eval, incr, type);
return (i + 3);
}
if (c == '?") {
i++;
if ((i + 1) < s.length()
&& (s.charAt(i) != ' " && s.charAt(i + 1) != '\t")) {
throw new ParseException("Illegal character after '?': "
+ s.charAt(i), i);
}
if (type != DAY_OF_WEEK && type != DAY_OF_MONTH) {
throw new ParseException(
"'?' can only be specfied for Day-of-Month or Day-of-Week.",
i);
}
if (type == DAY_OF_WEEK && !lastdayOfMonth) {
int val = ((Integer) daysOfMonth.last()).intValue();
if (val == NO_SPEC_INT) {
throw new ParseException(
"'?' can only be specfied for Day-of-Month -OR- Day-of-Week.",
i);
}
}
addToSet(NO_SPEC_INT, -1, 0, type);
return i;
}
if (c == '*" || c == '/") {
if (c == '*" && (i + 1) >= s.length()) {
addToSet(ALL_SPEC_INT, -1, incr, type);
return i + 1;
} else if (c == '/"
&& ((i + 1) >= s.length() || s.charAt(i + 1) == ' " || s
.charAt(i + 1) == '\t")) {
throw new ParseException("'/' must be followed by an integer.", i);
} else if (c == '*") {
i++;
}
c = s.charAt(i);
if (c == '/") { // is an increment specified?
i++;
if (i >= s.length()) {
throw new ParseException("Unexpected end of string.", i);
}
incr = getNumericValue(s, i);
i++;
if (incr > 10) {
i++;
}
if (incr > 59 && (type == SECOND || type == MINUTE)) {
throw new ParseException("Increment > 60 : " + incr, i);
} else if (incr > 23 && (type == HOUR)) {
throw new ParseException("Increment > 24 : " + incr, i);
} else if (incr > 31 && (type == DAY_OF_MONTH)) {
throw new ParseException("Increment > 31 : " + incr, i);
} else if (incr > 7 && (type == DAY_OF_WEEK)) {
throw new ParseException("Increment > 7 : " + incr, i);
} else if (incr > 12 && (type == MONTH)) {
throw new ParseException("Increment > 12 : " + incr, i);
}
} else {
incr = 1;
}
addToSet(ALL_SPEC_INT, -1, incr, type);
return i;
} else if (c == 'L") {
i++;
if (type == DAY_OF_MONTH) {
lastdayOfMonth = true;
}
if (type == DAY_OF_WEEK) {
addToSet(7, 7, 0, type);
}
if(type == DAY_OF_MONTH && s.length() > i) {
c = s.charAt(i);
if(c == 'W") {
nearestWeekday = true;
i++;
}
}
return i;
} else if (c >= '0" && c < = '9") {
int val = Integer.parseInt(String.valueOf(c));
i++;
if (i >= s.length()) {
addToSet(val, -1, -1, type);
} else {
c = s.charAt(i);
if (c >= '0" && c < = '9") {
ValueSet vs = getValue(val, s, i);
val = vs.value;
i = vs.pos;
}
i = checkNext(i, s, val, type);
return i;
}
} else {
throw new ParseException("Unexpected character: " + c, i);
}
return i;
} |
public String toString() {
return cronExpression;
} Returns the string representation of the CronExpression |
org.quartz.CronExpression
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