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/*
* Copyright 2008-2012 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package java.util;
import java.io.Serializable;
/**
* A simple, GWT compatible version of the Calendar class.
*
* @author jfischer
*
*/
public class Calendar implements Serializable {
private static final long serialVersionUID = 1L;
public static Calendar getInstance() {
return new Calendar();
}
private Date calendar = new Date();
public void add(int field, int amount) {
long millis = System.currentTimeMillis();
switch(field) {
case Calendar.DATE: {
calendar = new Date(millis + (amount * 1000 * 60 * 60 * 24));
break;
}
case Calendar.HOUR: {
calendar = new Date(millis + (amount * 1000 * 60 * 60));
break;
}
case Calendar.MILLISECOND: {
calendar = new Date(millis + (amount * 1000));
break;
}
case Calendar.MINUTE: {
calendar = new Date(millis + (amount * 1000 * 60));
break;
}
case Calendar.YEAR: {
calendar = new Date(millis);
calendar.setYear(calendar.getYear() + amount);
break;
}
case Calendar.MONTH: {
int modulus = amount % 12;
int yearAmount = amount/12;
calendar = new Date(millis);
calendar.setYear(calendar.getYear() + yearAmount);
int month = calendar.getMonth();
int year = calendar.getYear();
int result = month + modulus;
if (result > 11) {
calendar.setMonth(result - 12);
calendar.setYear(year + 1);
} else if (result < 0) {
calendar.setMonth(12 + result);
calendar.setYear(year - 1);
} else {
calendar.setMonth(result);
}
break;
}
default: {
throw new RuntimeException("Type not supported: " + field);
}
}
}
public boolean after(Object when) {
Date test;
if (when.getClass().getName().equals(Date.class.getName())) {
test = (Date) when;
} else {
test = ((Calendar) when).getTime();
}
return calendar.getTime() > test.getTime();
}
public boolean before(Object when) {
Date test;
if (when.getClass().getName().equals(Date.class.getName())) {
test = (Date) when;
} else {
test = ((Calendar) when).getTime();
}
return calendar.getTime() < test.getTime();
}
public final void clear() {
calendar = new Date();
}
public final void clear(int field) {
throw new RuntimeException("Not Supported");
}
public Object clone() {
return calendar.clone();
}
public int compareTo(Calendar anotherCalendar) {
return getTime().compareTo(anotherCalendar.getTime());
}
public boolean equals(Object obj) {
return calendar.equals(obj);
}
@SuppressWarnings("deprecation")
public int get(int field) {
int response;
switch(field) {
case Calendar.SECOND: {
response = calendar.getSeconds();
break;
}
case Calendar.MINUTE: {
response = calendar.getMinutes();
break;
}
case Calendar.HOUR: {
response = calendar.getHours();
break;
}
case Calendar.DATE: {
response = calendar.getDate();
break;
}
case Calendar.MONTH: {
response = calendar.getMonth();
break;
}
case Calendar.YEAR: {
response = calendar.getYear();
break;
}
default: {
throw new RuntimeException("Type not supported: " + field);
}
}
return response;
}
public int getActualMaximum(int field) {
throw new RuntimeException("Not Supported");
}
public int getActualMinimum(int field) {
throw new RuntimeException("Not Supported");
}
public int getFirstDayOfWeek() {
throw new RuntimeException("Not Supported");
}
public int getGreatestMinimum(int field) {
throw new RuntimeException("Not Supported");
}
public int getLeastMaximum(int field) {
throw new RuntimeException("Not Supported");
}
public int getMaximum(int field) {
throw new RuntimeException("Not Supported");
}
public int getMinimalDaysInFirstWeek() {
throw new RuntimeException("Not Supported");
}
public int getMinimum(int field) {
throw new RuntimeException("Not Supported");
}
public final Date getTime() {
return calendar;
}
public long getTimeInMillis() {
return calendar.getTime();
}
public TimeZone getTimeZone() {
throw new RuntimeException("Not Supported");
}
public int hashCode() {
return calendar.hashCode();
}
public boolean isLenient() {
throw new RuntimeException("Not Supported");
}
public final boolean isSet(int field) {
throw new RuntimeException("Not Supported");
}
public void roll(int field, boolean up) {
throw new RuntimeException("Not Supported");
}
public void roll(int field, int amount) {
throw new RuntimeException("Not Supported");
}
@SuppressWarnings("deprecation")
public final void set(int year, int month, int date, int hourOfDay, int minute, int second) {
calendar.setYear(year);
calendar.setMonth(month);
calendar.setDate(date);
calendar.setHours(hourOfDay);
calendar.setMinutes(minute);
calendar.setSeconds(second);
}
@SuppressWarnings("deprecation")
public final void set(int year, int month, int date, int hourOfDay, int minute) {
calendar.setYear(year);
calendar.setMonth(month);
calendar.setDate(date);
calendar.setHours(hourOfDay);
calendar.setMinutes(minute);
}
@SuppressWarnings("deprecation")
public final void set(int year, int month, int date) {
calendar.setYear(year);
calendar.setMonth(month);
calendar.setDate(date);
}
@SuppressWarnings("deprecation")
public void set(int field, int value) {
switch(field) {
case Calendar.SECOND: {
calendar.setSeconds(value);
break;
}
case Calendar.MINUTE: {
calendar.setMinutes(value);
break;
}
case Calendar.HOUR: {
calendar.setHours(value);
break;
}
case Calendar.DATE: {
calendar.setDate(value);
break;
}
case Calendar.MONTH: {
calendar.setMonth(value);
break;
}
case Calendar.YEAR: {
calendar.setYear(value);
break;
}
default: {
throw new RuntimeException("Type not supported: " + field);
}
}
}
public void setFirstDayOfWeek(int value) {
throw new RuntimeException("Not Supported");
}
public void setLenient(boolean lenient) {
throw new RuntimeException("Not Supported");
}
public void setMinimalDaysInFirstWeek(int value) {
throw new RuntimeException("Not Supported");
}
public final void setTime(Date date) {
calendar = date;
}
public void setTimeInMillis(long millis) {
calendar = new Date(millis);
}
public void setTimeZone(TimeZone value) {
throw new RuntimeException("Not Supported");
}
public String toString() {
return calendar.toString();
}
/**
* Field number for get and set indicating the
* era, e.g., AD or BC in the Julian calendar. This is a calendar-specific
* value; see subclass documentation.
*
* @see GregorianCalendar#AD
* @see GregorianCalendar#BC
*/
public final static int ERA = 0;
/**
* Field number for get and set indicating the
* year. This is a calendar-specific value; see subclass documentation.
*/
public final static int YEAR = 1;
/**
* Field number for get and set indicating the
* month. This is a calendar-specific value. The first month of the year is
* JANUARY which is 0; the last depends on the number of months in a year.
*
* @see #JANUARY
* @see #FEBRUARY
* @see #MARCH
* @see #APRIL
* @see #MAY
* @see #JUNE
* @see #JULY
* @see #AUGUST
* @see #SEPTEMBER
* @see #OCTOBER
* @see #NOVEMBER
* @see #DECEMBER
* @see #UNDECIMBER
*/
public final static int MONTH = 2;
/**
* Field number for get and set indicating the
* week number within the current year. The first week of the year, as
* defined by getFirstDayOfWeek() and
* getMinimalDaysInFirstWeek(), has value 1. Subclasses define
* the value of WEEK_OF_YEAR for days before the first week of
* the year.
*
* @see #getFirstDayOfWeek
* @see #getMinimalDaysInFirstWeek
*/
public final static int WEEK_OF_YEAR = 3;
/**
* Field number for get and set indicating the
* week number within the current month. The first week of the month, as
* defined by getFirstDayOfWeek() and
* getMinimalDaysInFirstWeek(), has value 1. Subclasses define
* the value of WEEK_OF_MONTH for days before the first week of
* the month.
*
* @see #getFirstDayOfWeek
* @see #getMinimalDaysInFirstWeek
*/
public final static int WEEK_OF_MONTH = 4;
/**
* Field number for get and set indicating the
* day of the month. This is a synonym for DAY_OF_MONTH.
* The first day of the month has value 1.
*
* @see #DAY_OF_MONTH
*/
public final static int DATE = 5;
/**
* Field number for get and set indicating the
* day of the month. This is a synonym for DATE.
* The first day of the month has value 1.
*
* @see #DATE
*/
public final static int DAY_OF_MONTH = 5;
/**
* Field number for get and set indicating the day
* number within the current year. The first day of the year has value 1.
*/
public final static int DAY_OF_YEAR = 6;
/**
* Field number for get and set indicating the day
* of the week. This field takes values SUNDAY,
* MONDAY, TUESDAY, WEDNESDAY,
* THURSDAY, FRIDAY, and SATURDAY.
*
* @see #SUNDAY
* @see #MONDAY
* @see #TUESDAY
* @see #WEDNESDAY
* @see #THURSDAY
* @see #FRIDAY
* @see #SATURDAY
*/
public final static int DAY_OF_WEEK = 7;
/**
* Field number for get and set indicating the
* ordinal number of the day of the week within the current month. Together
* with the DAY_OF_WEEK field, this uniquely specifies a day
* within a month. Unlike WEEK_OF_MONTH and
* WEEK_OF_YEAR, this field's value does not depend on
* getFirstDayOfWeek() or
* getMinimalDaysInFirstWeek(). DAY_OF_MONTH 1
* through 7 always correspond to DAY_OF_WEEK_IN_MONTH
* 1; 8 through 14 correspond to
* DAY_OF_WEEK_IN_MONTH 2, and so on.
* DAY_OF_WEEK_IN_MONTH 0 indicates the week before
* DAY_OF_WEEK_IN_MONTH 1. Negative values count back from the
* end of the month, so the last Sunday of a month is specified as
* DAY_OF_WEEK = SUNDAY, DAY_OF_WEEK_IN_MONTH = -1. Because
* negative values count backward they will usually be aligned differently
* within the month than positive values. For example, if a month has 31
* days, DAY_OF_WEEK_IN_MONTH -1 will overlap
* DAY_OF_WEEK_IN_MONTH 5 and the end of 4.
*
* @see #DAY_OF_WEEK
* @see #WEEK_OF_MONTH
*/
public final static int DAY_OF_WEEK_IN_MONTH = 8;
/**
* Field number for get and set indicating
* whether the HOUR is before or after noon.
* E.g., at 10:04:15.250 PM the AM_PM is PM.
*
* @see #AM
* @see #PM
* @see #HOUR
*/
public final static int AM_PM = 9;
/**
* Field number for get and set indicating the
* hour of the morning or afternoon. HOUR is used for the
* 12-hour clock (0 - 11). Noon and midnight are represented by 0, not by 12.
* E.g., at 10:04:15.250 PM the HOUR is 10.
*
* @see #AM_PM
* @see #HOUR_OF_DAY
*/
public final static int HOUR = 10;
/**
* Field number for get and set indicating the
* hour of the day. HOUR_OF_DAY is used for the 24-hour clock.
* E.g., at 10:04:15.250 PM the HOUR_OF_DAY is 22.
*
* @see #HOUR
*/
public final static int HOUR_OF_DAY = 11;
/**
* Field number for get and set indicating the
* minute within the hour.
* E.g., at 10:04:15.250 PM the MINUTE is 4.
*/
public final static int MINUTE = 12;
/**
* Field number for get and set indicating the
* second within the minute.
* E.g., at 10:04:15.250 PM the SECOND is 15.
*/
public final static int SECOND = 13;
/**
* Field number for get and set indicating the
* millisecond within the second.
* E.g., at 10:04:15.250 PM the MILLISECOND is 250.
*/
public final static int MILLISECOND = 14;
/**
* Field number for get and set
* indicating the raw offset from GMT in milliseconds.
*
* This field reflects the correct GMT offset value of the time
* zone of this Calendar if the
* TimeZone implementation subclass supports
* historical GMT offset changes.
*/
public final static int ZONE_OFFSET = 15;
/**
* Field number for get and set indicating the
* daylight savings offset in milliseconds.
*
* This field reflects the correct daylight saving offset value of
* the time zone of this Calendar if the
* TimeZone implementation subclass supports
* historical Daylight Saving Time schedule changes.
*/
public final static int DST_OFFSET = 16;
/**
* The number of distinct fields recognized by get and set.
* Field numbers range from 0..FIELD_COUNT-1.
*/
public final static int FIELD_COUNT = 17;
/**
* Value of the {@link #DAY_OF_WEEK} field indicating
* Sunday.
*/
public final static int SUNDAY = 1;
/**
* Value of the {@link #DAY_OF_WEEK} field indicating
* Monday.
*/
public final static int MONDAY = 2;
/**
* Value of the {@link #DAY_OF_WEEK} field indicating
* Tuesday.
*/
public final static int TUESDAY = 3;
/**
* Value of the {@link #DAY_OF_WEEK} field indicating
* Wednesday.
*/
public final static int WEDNESDAY = 4;
/**
* Value of the {@link #DAY_OF_WEEK} field indicating
* Thursday.
*/
public final static int THURSDAY = 5;
/**
* Value of the {@link #DAY_OF_WEEK} field indicating
* Friday.
*/
public final static int FRIDAY = 6;
/**
* Value of the {@link #DAY_OF_WEEK} field indicating
* Saturday.
*/
public final static int SATURDAY = 7;
/**
* Value of the {@link #MONTH} field indicating the
* first month of the year.
*/
public final static int JANUARY = 0;
/**
* Value of the {@link #MONTH} field indicating the
* second month of the year.
*/
public final static int FEBRUARY = 1;
/**
* Value of the {@link #MONTH} field indicating the
* third month of the year.
*/
public final static int MARCH = 2;
/**
* Value of the {@link #MONTH} field indicating the
* fourth month of the year.
*/
public final static int APRIL = 3;
/**
* Value of the {@link #MONTH} field indicating the
* fifth month of the year.
*/
public final static int MAY = 4;
/**
* Value of the {@link #MONTH} field indicating the
* sixth month of the year.
*/
public final static int JUNE = 5;
/**
* Value of the {@link #MONTH} field indicating the
* seventh month of the year.
*/
public final static int JULY = 6;
/**
* Value of the {@link #MONTH} field indicating the
* eighth month of the year.
*/
public final static int AUGUST = 7;
/**
* Value of the {@link #MONTH} field indicating the
* ninth month of the year.
*/
public final static int SEPTEMBER = 8;
/**
* Value of the {@link #MONTH} field indicating the
* tenth month of the year.
*/
public final static int OCTOBER = 9;
/**
* Value of the {@link #MONTH} field indicating the
* eleventh month of the year.
*/
public final static int NOVEMBER = 10;
/**
* Value of the {@link #MONTH} field indicating the
* twelfth month of the year.
*/
public final static int DECEMBER = 11;
/**
* Value of the {@link #MONTH} field indicating the
* thirteenth month of the year. Although GregorianCalendar
* does not use this value, lunar calendars do.
*/
public final static int UNDECIMBER = 12;
/**
* Value of the {@link #AM_PM} field indicating the
* period of the day from midnight to just before noon.
*/
public final static int AM = 0;
/**
* Value of the {@link #AM_PM} field indicating the
* period of the day from noon to just before midnight.
*/
public final static int PM = 1;
}