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/*******************************************************************************
* ___ _ ____ ____
* / _ \ _ _ ___ ___| |_| _ \| __ )
* | | | | | | |/ _ \/ __| __| | | | _ \
* | |_| | |_| | __/\__ \ |_| |_| | |_) |
* \__\_\\__,_|\___||___/\__|____/|____/
*
* Copyright (C) 2014-2016 Appsicle
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see
* http://en.wikipedia.org/wiki/Leap_year
*
* @param year the year
* @return true if year is leap
*/
public static boolean isLeapYear(int year) {
return ((year & 3) == 0) && ((year % 100) != 0 || (year % 400) == 0);
}
public static long monthOfYearMillis(int month, boolean leap) {
return leap ? MAX_MONTH_OF_YEAR_MILLIS[month - 1] : MIN_MONTH_OF_YEAR_MILLIS[month - 1];
}
// YYYY-MM-DDThh:mm:ss.mmm
public static long parseDateTime(CharSequence seq) throws NumericException {
return parseDateTime(seq, 0, seq.length());
}
public static long parseDateTimeFmt1(CharSequence seq) throws NumericException {
return parseDateTimeFmt1(seq, 0, seq.length());
}
public static long parseDateTimeFmt2(CharSequence seq) throws NumericException {
return parseDateTimeFmt2(seq, 0, seq.length());
}
public static long parseDateTimeFmt3(CharSequence seq) throws NumericException {
return parseDateTimeFmt3(seq, 0, seq.length());
}
// YYYY-MM-DDThh:mm:ss.mmm
public static long parseDateTimeQuiet(CharSequence seq) {
try {
return parseDateTime(seq, 0, seq.length());
} catch (NumericException e) {
return Long.MIN_VALUE;
}
}
public static Interval parseInterval(CharSequence seq) throws NumericException {
return parseInterval(seq, 0, seq.length());
}
public static Interval parseInterval(CharSequence seq, final int pos, int lim) throws NumericException {
int len = lim - pos - 1;
int p = pos;
int year = Numbers.parseInt(seq, p, p += 4);
boolean l = isLeapYear(year);
if (p < len) {
checkChar(seq, p++, lim, '-');
int month = Numbers.parseInt(seq, p, p += 2);
checkRange(month, 1, 12);
if (p < len) {
checkChar(seq, p++, lim, '-');
int day = Numbers.parseInt(seq, p, p += 2);
checkRange(day, 1, getDaysPerMonth(month, l));
if (p < len) {
checkChar(seq, p++, lim, 'T');
int hour = Numbers.parseInt(seq, p, p += 2);
checkRange(hour, 0, 23);
if (p < len) {
checkChar(seq, p++, lim, ':');
int min = Numbers.parseInt(seq, p, p += 2);
checkRange(min, 0, 59);
if (p < len) {
checkChar(seq, p++, lim, ':');
int sec = Numbers.parseInt(seq, p, p += 2);
checkRange(sec, 0, 59);
if (p < len) {
throw NumericException.INSTANCE;
} else {
// seconds
return new Interval(yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS
+ min * MINUTE_MILLIS
+ sec * SECOND_MILLIS,
yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS
+ min * MINUTE_MILLIS
+ sec * SECOND_MILLIS
+ 999
);
}
} else {
// minute
return new Interval(yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS
+ min * MINUTE_MILLIS,
yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS
+ min * MINUTE_MILLIS
+ 59 * SECOND_MILLIS
+ 999
);
}
} else {
// year + month + day + hour
return new Interval(yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS,
yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS
+ 59 * MINUTE_MILLIS
+ 59 * SECOND_MILLIS
+ 999
);
}
} else {
// year + month + day
return new Interval(yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS,
yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ +(day - 1) * DAY_MILLIS
+ 23 * HOUR_MILLIS
+ 59 * MINUTE_MILLIS
+ 59 * SECOND_MILLIS
+ 999
);
}
} else {
// year + month
return new Interval(yearMillis(year, l) + monthOfYearMillis(month, l),
yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (DAYS_PER_MONTH[month - 1] - 1) * DAY_MILLIS
+ 23 * HOUR_MILLIS
+ 59 * MINUTE_MILLIS
+ 59 * SECOND_MILLIS
+ 999
);
}
} else {
// year
return new Interval(yearMillis(year, l) + monthOfYearMillis(1, l),
yearMillis(year, l)
+ monthOfYearMillis(12, l)
+ (DAYS_PER_MONTH[11] - 1) * DAY_MILLIS
+ 23 * HOUR_MILLIS
+ 59 * MINUTE_MILLIS
+ 59 * SECOND_MILLIS
+ 999
);
}
}
public static long parseTime24(CharSequence seq) throws NumericException {
return parseTime24(seq, 0, seq.length());
}
public static long parseTime24(CharSequence seq, int lo, int lim) throws NumericException {
int p = lo;
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int hour = Numbers.parseInt(seq, p, p += 2);
int sec = 0;
int min = 0;
int mil = 0;
checkRange(hour, 0, 23);
if (p < lim && seq.charAt(p) == ':') {
checkChar(seq, p++, lim, ':');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
min = Numbers.parseInt(seq, p, p += 2);
checkRange(min, 0, 59);
if (p < lim && seq.charAt(p) == ':') {
checkChar(seq, p++, lim, ':');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
sec = Numbers.parseInt(seq, p, p += 2);
checkRange(sec, 0, 59);
if (p < lim && seq.charAt(p) == '.') {
if (p + 4 > lim) {
throw NumericException.INSTANCE;
}
mil = Numbers.parseInt(seq, ++p, p += 3);
checkRange(mil, 0, 999);
}
}
}
if (p < lim) {
checkChar(seq, p, lim, 'Z');
}
return hour * HOUR_MILLIS
+ min * MINUTE_MILLIS
+ sec * SECOND_MILLIS
+ mil;
}
public static long toMillis(int y, int m, int d, int h, int mi) {
boolean l = isLeapYear(y);
return yearMillis(y, l) + monthOfYearMillis(m, l) + (d - 1) * DAY_MILLIS + h * HOUR_MILLIS + mi * MINUTE_MILLIS;
}
public static String toString(long millis) {
StringSink sink = new StringSink();
Dates.appendDateTime(sink, millis);
return sink.toString();
}
public static long tryParse(CharSequence s) throws NumericException {
return tryParse(s, 0, s.length());
}
public static long tryParse(CharSequence s, int lo, int lim) throws NumericException {
try {
return parseDateTime(s, lo, lim);
} catch (NumericException ignore) {
}
try {
return parseDateTimeFmt1(s, lo, lim);
} catch (NumericException ignore) {
}
return parseDateTimeFmt2(s, lo, lim);
}
/**
* Calculated start of year in millis. For example of year 2008 this is
* equivalent to parsing "2008-01-01T00:00:00.000Z", except this method is faster.
*
* @param year the year
* @param leap true if give year is leap year
* @return millis for start of year.
*/
public static long yearMillis(int year, boolean leap) {
int leapYears = year / 100;
if (year < 0) {
leapYears = ((year + 3) >> 2) - leapYears + ((leapYears + 3) >> 2) - 1;
} else {
leapYears = (year >> 2) - leapYears + (leapYears >> 2);
if (leap) {
leapYears--;
}
}
return (year * 365L + (leapYears - DAYS_0000_TO_1970)) * DAY_MILLIS;
}
private static int getDayOfMonth(long millis, int year, int month, boolean leap) {
long dateMillis = yearMillis(year, leap);
dateMillis += monthOfYearMillis(month, leap);
return (int) ((millis - dateMillis) / DAY_MILLIS) + 1;
}
private static int getDayOfWeek(long millis) {
// 1970-01-01 is Thursday.
long d;
if (millis >= 0) {
d = millis / DAY_MILLIS;
} else {
d = (millis - (DAY_MILLIS - 1)) / DAY_MILLIS;
if (d < -3) {
return 7 + (int) ((d + 4) % 7);
}
}
return 1 + (int) ((d + 3) % 7);
}
/**
* Days in a given month. This method expects you to know if month is in leap year.
*
* @param m month from 1 to 12
* @param leap true if this is for leap year
* @return number of days in month.
*/
private static int getDaysPerMonth(int m, boolean leap) {
return leap & m == 2 ? 29 : DAYS_PER_MONTH[m - 1];
}
private static int getHourOfDay(long millis) {
if (millis > -1) {
return (int) ((millis / HOUR_MILLIS) % DAY_HOURS);
} else {
return DAY_HOURS - 1 + (int) (((millis + 1) / HOUR_MILLIS) % DAY_HOURS);
}
}
private static int getMillisOfSecond(long millis) {
if (millis > -1) {
return (int) (millis % 1000);
} else {
return 1000 - 1 + (int) ((millis + 1) % 1000);
}
}
private static int getMinuteOfHour(long millis) {
if (millis > -1) {
return (int) ((millis / MINUTE_MILLIS) % HOUR_MINUTES);
} else {
return HOUR_MINUTES - 1 + (int) (((millis + 1) / MINUTE_MILLIS) % HOUR_MINUTES);
}
}
private static int getSecondOfMinute(long millis) {
if (millis > -1) {
return (int) ((millis / SECOND_MILLIS) % MINUTE_SECONDS);
} else {
return MINUTE_SECONDS - 1 + (int) (((millis + 1) / SECOND_MILLIS) % MINUTE_SECONDS);
}
}
private static long getTime(long millis) {
return millis < 0 ? DAY_MILLIS - 1 + (millis % DAY_MILLIS) : millis % DAY_MILLIS;
}
private static long parseDateTime(CharSequence seq, int lo, int lim) throws NumericException {
int p = lo;
if (p + 4 > lim) {
throw NumericException.INSTANCE;
}
int year = Numbers.parseInt(seq, p, p += 4);
checkChar(seq, p++, lim, '-');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int month = Numbers.parseInt(seq, p, p += 2);
checkRange(month, 1, 12);
checkChar(seq, p++, lim, '-');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
boolean l = isLeapYear(year);
int day = Numbers.parseInt(seq, p, p += 2);
checkRange(day, 1, getDaysPerMonth(month, l));
checkChar(seq, p++, lim, 'T');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int hour = Numbers.parseInt(seq, p, p += 2);
checkRange(hour, 0, 23);
checkChar(seq, p++, lim, ':');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int min = Numbers.parseInt(seq, p, p += 2);
checkRange(min, 0, 59);
checkChar(seq, p++, lim, ':');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int sec = Numbers.parseInt(seq, p, p += 2);
checkRange(sec, 0, 59);
int mil = 0;
if (p < lim && seq.charAt(p) == '.') {
if (p + 4 > lim) {
throw NumericException.INSTANCE;
}
mil = Numbers.parseInt(seq, ++p, p += 3);
checkRange(mil, 0, 999);
}
if (p < lim) {
checkChar(seq, p, lim, 'Z');
}
return yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS
+ min * MINUTE_MILLIS
+ sec * SECOND_MILLIS
+ mil;
}
// YYYY-MM-DD hh:mm:ss
private static long parseDateTimeFmt1(CharSequence seq, int lo, int lim) throws NumericException {
int p = lo;
if (p + 4 > lim) {
throw NumericException.INSTANCE;
}
int year = Numbers.parseInt(seq, p, p += 4);
checkChar(seq, p++, lim, '-');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int month = Numbers.parseInt(seq, p, p += 2);
checkRange(month, 1, 12);
checkChar(seq, p++, lim, '-');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
boolean l = isLeapYear(year);
int day = Numbers.parseInt(seq, p, p += 2);
checkRange(day, 1, getDaysPerMonth(month, l));
checkChar(seq, p++, lim, ' ');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int hour = Numbers.parseInt(seq, p, p += 2);
checkRange(hour, 0, 23);
checkChar(seq, p++, lim, ':');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int min = Numbers.parseInt(seq, p, p += 2);
checkRange(min, 0, 59);
checkChar(seq, p++, lim, ':');
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int sec = Numbers.parseInt(seq, p, p + 2);
checkRange(sec, 0, 59);
return yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS
+ hour * HOUR_MILLIS
+ min * MINUTE_MILLIS
+ sec * SECOND_MILLIS;
}
// MM/DD/YYYY
private static long parseDateTimeFmt2(CharSequence seq, int lo, int lim) throws NumericException {
int p = lo;
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int month = Numbers.parseInt(seq, p, p += 2);
checkRange(month, 1, 12);
checkChar(seq, p++, lim, '/');
if (p + 4 > lim) {
throw NumericException.INSTANCE;
}
int year = Numbers.parseInt(seq, p + 3, p + 7);
boolean l = isLeapYear(year);
if (p + 2 > lim) {
throw NumericException.INSTANCE;
}
int day = Numbers.parseInt(seq, p, p += 2);
checkRange(day, 1, getDaysPerMonth(month, l));
checkChar(seq, p, lim, '/');
return yearMillis(year, l)
+ monthOfYearMillis(month, l)
+ (day - 1) * DAY_MILLIS;
}
// DD/MM/YYYY
private static long parseDateTimeFmt3(CharSequence seq, int lo, int lim) throws NumericException {
int p = lo;
int day = int0(seq, p, p += 2, lim);
checkChar(seq, p++, lim, '/');
int month = int0(seq, p, p += 2, lim);
checkRange(month, 1, 12);
checkChar(seq, p++, lim, '/');
int year = int0(seq, p, p + 4, lim);
boolean l = isLeapYear(year);
checkRange(day, 1, getDaysPerMonth(month, l));
return yearMillis(year, l) + monthOfYearMillis(month, l) + (day - 1) * DAY_MILLIS;
}
private static long toMillis(int y, int m, int d) {
boolean l = isLeapYear(y);
return yearMillis(y, l) + monthOfYearMillis(m, l) + (d - 1) * DAY_MILLIS;
}
private static int int0(CharSequence s, int lo, int hi, int lim) throws NumericException {
if (hi > lim) {
throw NumericException.INSTANCE;
}
return Numbers.parseInt(s, lo, hi);
}
private static void append0(CharSink sink, int val) {
if (val < 10) {
sink.put('0');
}
Numbers.append(sink, val);
}
private static void append00(CharSink sink, int val) {
if (val < 10) {
sink.put('0').put('0');
} else if (val < 100) {
sink.put('0');
}
Numbers.append(sink, val);
}
private static void append0000(CharSink sink, int val) {
if (val < 10) {
sink.put('0').put('0').put('0');
} else if (val < 100) {
sink.put('0').put('0');
} else if (val < 1000) {
sink.put('0');
}
Numbers.append(sink, val);
}
private static void checkChar(CharSequence s, int p, int lim, char c) throws NumericException {
if (p >= lim || s.charAt(p) != c) {
throw NumericException.INSTANCE;
}
}
private static void checkRange(int x, int min, int max) throws NumericException {
if (x < min || x > max) {
throw NumericException.INSTANCE;
}
}
static {
long minSum = 0;
long maxSum = 0;
for (int i = 0; i < 11; i++) {
minSum += DAYS_PER_MONTH[i] * DAY_MILLIS;
MIN_MONTH_OF_YEAR_MILLIS[i + 1] = minSum;
maxSum += getDaysPerMonth(i + 1, true) * DAY_MILLIS;
MAX_MONTH_OF_YEAR_MILLIS[i + 1] = maxSum;
}
}
}