Package com.ocs.dynamo.utils

Class DateUtils

java.lang.Object

com.ocs.dynamo.utils.DateUtils

public final class DateUtils
extends Object

Date utility class

Author:

bas.rutten

Field Summary

Fields

Modifier and Type	Field	Description
static String	WEEK_CODE_PATTERN

Method Summary

Modifier and Type	Method	Description
static <T> T	createJava8Date(Class<T> clazz, String dateStr, String format)
static LocalDate	createLocalDate(String dateStr)	Creates a java.time.LocalTime based on a String representation
static LocalDate	createLocalDate(String dateStr, String format)	Creates a java.time.LocalTime based on a String representation
static LocalDateTime	createLocalDateTime(String dateTimeStr)	Creates a java.time.LocalDateTime based on a String representation
static LocalDateTime	createLocalDateTime(String dateTimeStr, String format)	Creates a java.time.LocalDateTime based on a String representation
static LocalTime	createLocalTime(String timeStr)	Creates a java.time.LocalTime based on a String representation
static LocalTime	createLocalTime(String timeStr, String format)	Creates a java.time.LocalTime based on a String representation
static ZonedDateTime	createZonedDateTime(String dateTimeStr)	Create a ZonedDateTime based from a String, using the default format
static ZonedDateTime	createZonedDateTime(String dateTimeStr, String format)	Creates a ZonedDateTime from a String, using the provided format
static String	formatDate(LocalDate date, String format)	Formats a LocalDate according to the specified format
static String	formatDateTime(LocalDateTime dateTime, String format)	Formats a LocalDateTime according to the specified format
static String	formatJava8Date(Class<?> clazz, Object value, String format)	Formats a Java 8 date/time/datetime based on the specified format
static String	formatTime(LocalTime time, String format)	Formats a java.time.LocalTime according to the specified format
static String	formatZonedDateTime(ZonedDateTime dateTime, String format)	Formats a ZonedDateTime according to the specified format
static int	getLastWeekOfYear(int year)	Return the week number (1 - 53) of the last week of the specified year
static String	getNextWeekCode(String weekCode)	Returns the next week code given an existing week code
static int	getQuarter(LocalDate date)	Returns the quarter of the year of a date, as an integer (1 to 4).
static LocalDate	getStartDateOfWeek(String weekCode)	Translates a week code (yyyy-ww) to the starting day (this is taken to be a Monday) of that week
static boolean	isJava8DateType(Class<?> clazz)	Çhecks whether a class represents a Java 8 date or time type
static boolean	isSupportedDateType(Class<?> clazz)	Checks if a class represents a supported Date time.
static boolean	isValidWeekCode(String weekCode)	Checks if a string represents a valid week code (yyyy-ww).
static Date	toLegacyDate(LocalDate d)	Converts a LocalDate to a legacy java.time.LocalTime
static Date	toLegacyDate(LocalDateTime ldt)	Converts a java.time.LocalDateTime to a java.time.LocalTime
static String	toWeekCode(LocalDate date)	Converts a date to its corresponding week code

Methods inherited from class java.lang.Object

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

Field Detail

WEEK_CODE_PATTERN

public static final String WEEK_CODE_PATTERN

See Also:

Constant Field Values

Method Detail

createJava8Date

public static <T> T createJava8Date(Class<T> clazz,
                                    String dateStr,
                                    String format)

createLocalDate

public static LocalDate createLocalDate(String dateStr)

Creates a java.time.LocalTime based on a String representation

Parameters:

dateStr - the String (in the format ddMMyyyy)

Returns:

createLocalDate

public static LocalDate createLocalDate(String dateStr,
                                        String format)

Creates a java.time.LocalTime based on a String representation

Parameters:

dateStr - the String

format - the desired format

Returns:

createLocalDateTime

public static LocalDateTime createLocalDateTime(String dateTimeStr)

Creates a java.time.LocalDateTime based on a String representation

Parameters:

dateTimeStr - the String representation (ddMMyyyy HHmmss)

Returns:

createLocalDateTime

public static LocalDateTime createLocalDateTime(String dateTimeStr,
                                                String format)

Creates a java.time.LocalDateTime based on a String representation

Parameters:

dateTimeStr - the String representation

format - the desired format

Returns:

createLocalTime

public static LocalTime createLocalTime(String timeStr)

Creates a java.time.LocalTime based on a String representation

Parameters:

timeStr - the String representation

Returns:

createLocalTime

public static LocalTime createLocalTime(String timeStr,
                                        String format)

Creates a java.time.LocalTime based on a String representation

Parameters:

timeStr - the String representation

format - the desired format

Returns:

createZonedDateTime

public static ZonedDateTime createZonedDateTime(String dateTimeStr)

Create a ZonedDateTime based from a String, using the default format

Parameters:

dateTimeStr - the String to parse

Returns:

createZonedDateTime

public static ZonedDateTime createZonedDateTime(String dateTimeStr,
                                                String format)

Creates a ZonedDateTime from a String, using the provided format

Parameters:

dateTimeStr - the String

format - the format

Returns:

formatDate

public static String formatDate(LocalDate date,
                                String format)

Formats a LocalDate according to the specified format

Parameters:

date - the date

format - the format

Returns:

formatDateTime

public static String formatDateTime(LocalDateTime dateTime,
                                    String format)

Formats a LocalDateTime according to the specified format

Parameters:

dateTime - the DateTime to format

format - the desired format

Returns:

formatJava8Date

public static String formatJava8Date(Class<?> clazz,
                                     Object value,
                                     String format)

Formats a Java 8 date/time/datetime based on the specified format

Parameters:

clazz - the class of the object to format

value - the value

format - the desired format

Returns:

formatTime

public static String formatTime(LocalTime time,
                                String format)

Formats a java.time.LocalTime according to the specified format

Parameters:

time - the objec to format

format - the desired format

Returns:

formatZonedDateTime

public static String formatZonedDateTime(ZonedDateTime dateTime,
                                         String format)

Formats a ZonedDateTime according to the specified format

Parameters:

dateTime - the DateTime to format

format - the desired format

Returns:

getLastWeekOfYear

public static int getLastWeekOfYear(int year)

Return the week number (1 - 53) of the last week of the specified year

Parameters:

year - the year

Returns:

getNextWeekCode

public static String getNextWeekCode(String weekCode)

Returns the next week code given an existing week code

Parameters:

weekCode - the week code

Returns:

getQuarter

public static int getQuarter(LocalDate date)

Returns the quarter of the year of a date, as an integer (1 to 4). Returns -1 in case the argument passed to this function is null

Parameters:

date - the date

Returns:

getStartDateOfWeek

public static LocalDate getStartDateOfWeek(String weekCode)

Translates a week code (yyyy-ww) to the starting day (this is taken to be a Monday) of that week

Parameters:

weekCode - the week code

Returns:

the date

isJava8DateType

public static boolean isJava8DateType(Class<?> clazz)

Çhecks whether a class represents a Java 8 date or time type

Parameters:

clazz - the class

Returns:

isSupportedDateType

public static boolean isSupportedDateType(Class<?> clazz)

Checks if a class represents a supported Date time. This includes the Java 8 date types and the legacy java.time.LocalTime

Parameters:

clazz - the class to check

Returns:

isValidWeekCode

public static boolean isValidWeekCode(String weekCode)

Checks if a string represents a valid week code (yyyy-ww). An empty String is considered valid

Parameters:

weekCode - the week code

Returns:

toLegacyDate

public static Date toLegacyDate(LocalDate d)

Converts a LocalDate to a legacy java.time.LocalTime

Parameters:

d - the LocalDate to convert

Returns:

toLegacyDate

public static Date toLegacyDate(LocalDateTime ldt)

Converts a java.time.LocalDateTime to a java.time.LocalTime

Parameters:

d - the LocalDatetime to convert

Returns:

toWeekCode

public static String toWeekCode(LocalDate date)

Converts a date to its corresponding week code

Parameters:

date - the date

Returns: