org.dynamide.util

Class DateUtils

java.lang.Object

org.dynamide.util.DateUtils

public class DateUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	ISO_8601_DATE_PATTERN
static String	ISO_8601_UTC_TIMESTAMP_PATTERN
static List<String>	isoLanguageCodes
static Locale	NULL_LOCALE
static String	UTC_TIMEZONE_IDENTIFIER

Constructor Summary

Constructors

Constructor and Description
DateUtils()

Method Summary

Modifier and Type	Method and Description
static DateFormat	getDateFormatter(String pattern) Returns a date formatter for a provided date or date/time pattern.
static DateFormat	getDateFormatter(String pattern, Locale locale) Returns a date formatter for a supplied date or date/time pattern, in the supplied locale (if any).
static String	getDayOfMonth(Object millis)
static Locale	getLocale(String lang) Returns the locale associated with a supplied ISO 639-1 language code.
String	getMonthName(Object millis)
static boolean	isParseableByDatePattern(String str, String pattern) Identifies whether a presumptive date or date/time can be parsed by a date parser, using a supplied format pattern.
static void	main(String[] args)
static Date	parseDate(String str, DateFormat df) Parses a presumptive date or date/time, using a supplied format pattern.
static Date	parseDate(String str, String pattern) Parses a presumptive date or date/time, using a supplied format pattern.
static TimeZone	UTCTimeZone() Returns the UTC time zone.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ISO_8601_DATE_PATTERN

public static final String ISO_8601_DATE_PATTERN

See Also:

Constant Field Values

UTC_TIMEZONE_IDENTIFIER

public static final String UTC_TIMEZONE_IDENTIFIER

See Also:

Constant Field Values

ISO_8601_UTC_TIMESTAMP_PATTERN

public static final String ISO_8601_UTC_TIMESTAMP_PATTERN

See Also:

Constant Field Values

NULL_LOCALE

public static final Locale NULL_LOCALE

isoLanguageCodes

public static final List<String> isoLanguageCodes

Constructor Detail

DateUtils

public DateUtils()

Method Detail

UTCTimeZone

public static TimeZone UTCTimeZone()

Returns the UTC time zone.

Returns:

The UTC time zone. Defaults to the closely-related GMT time zone, if for some reason the UTC time zone identifier cannot be understood.

parseDate

public static Date parseDate(String str,
                             String pattern)

Parses a presumptive date or date/time, using a supplied format pattern.

Parameters:

str - a String, possibly a date or date/time String.

pattern - A date or date/time pattern.

Returns:

A date value, resulting from parsing the String using the supplied pattern. Returns null if the parsing attempt fails.

parseDate

public static Date parseDate(String str,
                             DateFormat df)

Parses a presumptive date or date/time, using a supplied format pattern.

Parameters:

str - a String, possibly a date or date/time String.

df - A date formatter.

Returns:

A date value, resulting from parsing the String using the supplied formatter. Returns null if the parsing attempt fails.

getLocale

public static Locale getLocale(String lang)

Returns the locale associated with a supplied ISO 639-1 language code.

Parameters:

lang - A language code.

Returns:

A locale based on that language code; or null if the code was null, empty, or invalid.

getDateFormatter

public static DateFormat getDateFormatter(String pattern)

Returns a date formatter for a provided date or date/time pattern.

Parameters:

pattern - A date or date/time pattern.

Returns:

A date formatter using that pattern, or null if the pattern was null, empty, or invalid.

getDateFormatter

public static DateFormat getDateFormatter(String pattern,
                                          Locale locale)

Returns a date formatter for a supplied date or date/time pattern, in the supplied locale (if any).

Parameters:

pattern - A date or date/time pattern.

locale - A locale.

Returns:

A date formatter using that pattern and locale (if any), or null if the pattern was null, empty, or invalid.

isParseableByDatePattern

public static boolean isParseableByDatePattern(String str,
                                               String pattern)

Identifies whether a presumptive date or date/time can be parsed by a date parser, using a supplied format pattern.

Parameters:

str - a String, possibly a date or date/time String.

pattern - A date or date/time pattern.

Returns:

true, if the String can be parsed, using the pattern; false if the String cannot be parsed by the pattern, or if the String or pattern are null.

getMonthName

public String getMonthName(Object millis)

getDayOfMonth

public static String getDayOfMonth(Object millis)

main

public static void main(String[] args)