/**
* Copyright (c) 2012 Todoroo Inc
*
* See the file "LICENSE" for the full license governing this code.
*/
package com.todoroo.andlib.utility;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import android.content.Context;
import android.text.format.DateFormat;
import android.text.format.DateUtils;
import com.todoroo.astrid.api.R;
public class DateUtilities {
/* ======================================================================
* ============================================================ long time
* ====================================================================== */
/** Convert unixtime into date */
public static final Date unixtimeToDate(long millis) {
if(millis == 0)
return null;
return new Date(millis);
}
/** Convert date into unixtime */
public static final long dateToUnixtime(Date date) {
if(date == null)
return 0;
return date.getTime();
}
/**
* Add the specified amount of months to the given time.<br/>
* The day of month will stay the same.<br/>
*
* @param time the base-time (in milliseconds) to which the amount of months is added
* @param interval the amount of months to be added
* @return the calculated time in milliseconds
*/
public static final long addCalendarMonthsToUnixtime(long time, int interval) {
Calendar c = Calendar.getInstance();
c.setTimeInMillis(time);
c.add(Calendar.MONTH, interval);
return c.getTimeInMillis();
}
/** Returns unixtime for current time */
public static final long now() {
return System.currentTimeMillis();
}
/** Returns unixtime one month from now */
public static final long oneMonthFromNow() {
Date date = new Date();
date.setMonth(date.getMonth() + 1);
return date.getTime();
}
/** Represents a single hour */
public static final long ONE_HOUR = 3600000L;
/** Represents a single day */
public static final long ONE_DAY = 24 * ONE_HOUR;
/** Represents a single week */
public static final long ONE_WEEK = 7 * ONE_DAY;
/** Represents a single minute */
public static final long ONE_MINUTE = 60000L;
/* ======================================================================
* =========================================================== formatters
* ====================================================================== */
static Boolean is24HourOverride = null;
public static boolean is24HourFormat(Context context) {
if(is24HourOverride != null)
return is24HourOverride;
return DateFormat.is24HourFormat(context);
}
/**
* @param context android context
* @param date time to format
* @return time, with hours and minutes
*/
@SuppressWarnings("nls")
public static String getTimeString(Context context, Date date, boolean excludeZeroMinutes) {
String value;
if (is24HourFormat(context)) {
value = "H:mm";
} else if (date.getMinutes() == 0 && excludeZeroMinutes){
value = "h a";
}
else {
value = "h:mm a";
}
return new SimpleDateFormat(value).format(date);
}
public static String getTimeString(Context context, Date date) {
return getTimeString(context, date, true);
}
/* Returns true if search string is in sortedValues */
private static boolean arrayBinaryContains(String search, String... sortedValues) {
return Arrays.binarySearch(sortedValues, search) >= 0;
}
/**
* @param context android context
* @param date date to format
* @return date, with month, day, and year
*/
@SuppressWarnings("nls")
public static String getDateString(Context context, Date date, boolean includeYear) {
String month = DateUtils.getMonthString(date.getMonth() +
Calendar.JANUARY, DateUtils.LENGTH_MEDIUM);
String value;
String standardDate;
// united states, you are special
Locale locale = Locale.getDefault();
if (arrayBinaryContains(locale.getLanguage(), "ja", "ko", "zh")
|| arrayBinaryContains(locale.getCountry(), "BZ", "CA", "KE", "MN" ,"US"))
value = "'#' d'$'";
else
value = "d'$' '#'";
if (includeYear)
value += ", yyyy";
if (arrayBinaryContains(locale.getLanguage(), "ja", "zh")){
standardDate = new SimpleDateFormat(value).format(date).replace("#", month).replace("$", "\u65E5"); //$NON-NLS-1$
}else if ("ko".equals(Locale.getDefault().getLanguage())){
standardDate = new SimpleDateFormat(value).format(date).replace("#", month).replace("$", "\uC77C"); //$NON-NLS-1$
}else{
standardDate = new SimpleDateFormat(value).format(date).replace("#", month).replace("$", "");
}
return standardDate;}
public static String getDateString(Context context, Date date) {
return getDateString(context, date, true);
}
/**
* @param context android context
* @param date date to format
* @return date, with month, day, and year
*/
@SuppressWarnings("nls")
public static String getDateStringHideYear(Context context, Date date) {
String month = DateUtils.getMonthString(date.getMonth() +
Calendar.JANUARY, DateUtils.LENGTH_MEDIUM);
String value;
Locale locale = Locale.getDefault();
// united states, you are special
if (arrayBinaryContains(locale.getLanguage(), "ja", "ko", "zh")
|| arrayBinaryContains(locale.getCountry(), "BZ", "CA", "KE", "MN" ,"US"))
value = "'#' d";
else
value = "d '#'";
if (date.getYear() != (new Date()).getYear()) {
value = value + "\nyyyy";
}
if (arrayBinaryContains(locale.getLanguage(), "ja", "zh")) //$NON-NLS-1$
return new SimpleDateFormat(value).format(date).replace("#", month) + "\u65E5"; //$NON-NLS-1$
else if ("ko".equals(Locale.getDefault().getLanguage())) //$NON-NLS-1$
return new SimpleDateFormat(value).format(date).replace("#", month) + "\uC77C"; //$NON-NLS-1$
else
return new SimpleDateFormat(value).format(date).replace("#", month);
}
/**
* @return date format as getDateFormat with weekday
*/
@SuppressWarnings("nls")
public static String getDateStringWithWeekday(Context context, Date date) {
String weekday = getWeekday(date);
return weekday + ", " + getDateString(context, date);
}
/**
* @return weekday
*/
public static String getWeekday(Date date) {
return DateUtils.getDayOfWeekString(date.getDay() + Calendar.SUNDAY,
DateUtils.LENGTH_LONG);
}
/**
* @return weekday
*/
public static String getWeekdayShort(Date date) {
return DateUtils.getDayOfWeekString(date.getDay() + Calendar.SUNDAY,
DateUtils.LENGTH_MEDIUM);
}
/**
* @return date format as getDateFormat with weekday
*/
@SuppressWarnings("nls")
public static String getDateStringWithTimeAndWeekday(Context context, Date date) {
return getDateStringWithWeekday(context, date) + " " + getTimeString(context, date);
}
/**
* @return date with time at the end
*/
@SuppressWarnings("nls")
public static String getDateStringWithTime(Context context, Date date) {
return getDateString(context, date) + " " + getTimeString(context, date);
}
/**
* @return yesterday, today, tomorrow, or null
*/
public static String getRelativeDay(Context context, long date, boolean abbreviated) {
long today = clearTime(new Date());
long input = clearTime(new Date(date));
if(today == input)
return context.getString(R.string.today).toLowerCase();
if(today + ONE_DAY == input)
return context.getString(abbreviated ? R.string.tmrw : R.string.tomorrow).toLowerCase();
if(today == input + ONE_DAY)
return context.getString(abbreviated ? R.string.yest : R.string.yesterday).toLowerCase();
if(today + DateUtilities.ONE_WEEK >= input &&
today - DateUtilities.ONE_WEEK <= input)
return abbreviated ? DateUtilities.getWeekdayShort(new Date(date)) : DateUtilities.getWeekday(new Date(date));
return DateUtilities.getDateStringHideYear(context, new Date(date));
}
public static boolean isEndOfMonth(Date d) {
int date = d.getDate();
if (date < 28)
return false;
int month = d.getMonth();
if (month == Calendar.FEBRUARY)
return date >= 28;
if (month == Calendar.APRIL || month == Calendar.JUNE || month == Calendar.SEPTEMBER || month == Calendar.NOVEMBER)
return date >= 30;
return date >= 31;
}
/**
* Calls getRelativeDay with abbreviated parameter defaulted to true
*/
public static String getRelativeDay(Context context, long date) {
return DateUtilities.getRelativeDay(context, date, true);
}
private static final Calendar calendar = Calendar.getInstance();
public static long getStartOfDay(long time) {
calendar.setTimeInMillis(time);
calendar.set(Calendar.HOUR, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTimeInMillis();
}
private static long clearTime(Date date) {
date.setTime(date.getTime() / 1000L * 1000);
date.setHours(0);
date.setMinutes(0);
date.setSeconds(0);
return date.getTime();
}
public static boolean isoStringHasTime(String iso8601String) {
return iso8601String.length() > 10;
}
public static long parseIso8601(String iso8601String) throws ParseException {
if (iso8601String == null)
return 0;
String formatString;
if (isoStringHasTime(iso8601String)) { // Time exists
iso8601String = iso8601String.replace("Z", "+00:00"); //$NON-NLS-1$ //$NON-NLS-2$
try {
iso8601String = iso8601String.substring(0, 22) + iso8601String.substring(23);
} catch (IndexOutOfBoundsException e) {
e.printStackTrace();
throw new ParseException("Invalid ISO 8601 length for string " + iso8601String, 0); //$NON-NLS-1$
}
formatString = "yyyy-MM-dd'T'HH:mm:ssZ"; //$NON-NLS-1$
} else {
formatString = "yyyy-MM-dd"; //$NON-NLS-1$
}
Date result = new SimpleDateFormat(formatString).parse(iso8601String);
return result.getTime();
}
public static String timeToIso8601(long time, boolean includeTime) {
if (time == 0)
return null;
Date date = new Date(time);
String formatString = "yyyy-MM-dd'T'HH:mm:ssZ"; //$NON-NLS-1$
if (!includeTime)
formatString = "yyyy-MM-dd"; //$NON-NLS-1$
return new SimpleDateFormat(formatString).format(date);
}
}