Package org.alfresco.service.cmr.calendar

Class CalendarRecurrenceHelper

java.lang.Object

org.alfresco.service.cmr.calendar.CalendarRecurrenceHelper

public class CalendarRecurrenceHelper
extends Object

This class provides helper functions for when working with recurring CalendarEntry instances. It provides support for working with key parts of the Outlook/SharePoint recurrence rules

Since:

4.0

Author:

Nick Burch

Field Summary

Fields

Modifier and Type	Field	Description
protected static final Map<String,Integer>	d2cd
static final String	DAY
static final Map<String,Integer>	DAY_NAMES_TO_CALENDAR_DAYS	The lookup from the day strings to Calendar Day entries
protected static final Map<Integer,String>	WEEK_NUMBER_TO_WEEK_NAME
static final String	WEEKDAYS
static final String	WEEKENDS

Constructor Summary

Constructors

Constructor	Description
CalendarRecurrenceHelper()

Method Summary

Modifier and Type	Method	Description
protected static void	buildDailyRecurrences(Calendar currentDate, long duration, List<Date> dates, Map<String,String> params, Date onOrAfter, Date until, boolean firstOnly, int interval)
static Map<String,String>	buildLocalRecurrenceDaysOfTheWeek(Locale locale)	Returns a lookup from recurrence rule days of the week, to the proper days of the week in the specified locale
static Map<Integer,String>	buildLocalRecurrenceWeekNames(Locale locale)	The lookup from the week in month number to week in month name in the specified locale
protected static void	buildMonthlyRecurrences(Calendar currentDate, long duration, List<Date> dates, Map<String,String> params, Date onOrAfter, Date until, boolean firstOnly, int monthInterval)
protected static void	buildWeeklyRecurrences(Calendar currentDate, long duration, List<Date> dates, Map<String,String> params, Date onOrAfter, Date until, boolean firstOnly, int interval)
protected static void	buildYearlyRecurrences(Calendar currentDate, long duration, List<Date> dates, Map<String,String> params, Date onOrAfter, Date until, boolean firstOnly, int interval)
static Map<String,String>	extractRecurrenceRule(CalendarEntry entry)	Returns the parsed calendar recurrence rule WARNING - Alfresco use only.
protected static Map<String,String>	fixOutlookRecurrenceQuirks(Map<String,String> params)	Outlook does some crazy stuff, which is only just about permitted by the specification, and is hard to parse, especially for yearly events.
static List<Date>	getRecurrencesOnOrAfter(String recurrenceRule, Date eventStart, Date eventEnd, Date lastRecurrence, Date onOrAfter, Date until, boolean firstOnly, Set<Date> ignoredDates)	For the given Calendar Entry, return its subsequent Recurrence on or after the specified date, until the given limit.
static List<Date>	getRecurrencesOnOrAfter(CalendarEntry entry, Date onOrAfter, Date until, boolean firstOnly, Set<Date> ignoredDates)	For the given Calendar Entry, return its subsequent Recurrence on or after the specified date, until the given limit.

Methods inherited from class java.lang.Object

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

Field Details

d2cd

protected static final Map<String,Integer> d2cd

DAY_NAMES_TO_CALENDAR_DAYS

public static final Map<String,Integer> DAY_NAMES_TO_CALENDAR_DAYS

The lookup from the day strings to Calendar Day entries

DAY

public static final String DAY

See Also:

• Constant Field Values

WEEKDAYS

public static final String WEEKDAYS

See Also:

• Constant Field Values

WEEKENDS

public static final String WEEKENDS

See Also:

• Constant Field Values

WEEK_NUMBER_TO_WEEK_NAME

protected static final Map<Integer,String> WEEK_NUMBER_TO_WEEK_NAME

Constructor Details

CalendarRecurrenceHelper

public CalendarRecurrenceHelper()

Method Details

buildLocalRecurrenceDaysOfTheWeek

public static Map<String,String> buildLocalRecurrenceDaysOfTheWeek(Locale locale)

Returns a lookup from recurrence rule days of the week, to the proper days of the week in the specified locale

buildLocalRecurrenceWeekNames

public static Map<Integer,String> buildLocalRecurrenceWeekNames(Locale locale)

The lookup from the week in month number to week in month name in the specified locale

extractRecurrenceRule

public static Map<String,String> extractRecurrenceRule(CalendarEntry entry)

Returns the parsed calendar recurrence rule WARNING - Alfresco use only. Return type will likely shift to a real object in the near future

fixOutlookRecurrenceQuirks

protected static Map<String,String> fixOutlookRecurrenceQuirks(Map<String,String> params)

Outlook does some crazy stuff, which is only just about permitted by the specification, and is hard to parse, especially for yearly events. Fix these to more normal cases where possible TODO: This method modifies the input, returning the Map perhaps implies a copy is returned. Decide whether this should be of return type 'void', or make a defensive copy before modification.

getRecurrencesOnOrAfter

public static List<Date> getRecurrencesOnOrAfter(CalendarEntry entry,
 Date onOrAfter,
 Date until,
 boolean firstOnly,
 Set<Date> ignoredDates)

For the given Calendar Entry, return its subsequent Recurrence on or after the specified date, until the given limit. If it doesn't have any recurrences on or after the start date (either no recurrence rules, or the last recurrence date is before then), null will be returned. (The onOrAfter and until dates are treat as inclusive) If requested, can stop after the first hit

Returns:

The next recurrence on or after the given date, or null if there aren't any

getRecurrencesOnOrAfter

public static List<Date> getRecurrencesOnOrAfter(String recurrenceRule,
 Date eventStart,
 Date eventEnd,
 Date lastRecurrence,
 Date onOrAfter,
 Date until,
 boolean firstOnly,
 Set<Date> ignoredDates)

For the given Calendar Entry, return its subsequent Recurrence on or after the specified date, until the given limit. If it doesn't have any recurrences on or after the start date (either no recurrence rules, or the last recurrence date is before then), null will be returned. (The onOrAfter and until dates are treat as inclusive) If requested, can stop after the first hit

Returns:

The next recurrence on or after the given date, or null if there aren't any

buildDailyRecurrences

protected static void buildDailyRecurrences(Calendar currentDate,
 long duration,
 List<Date> dates,
 Map<String,String> params,
 Date onOrAfter,
 Date until,
 boolean firstOnly,
 int interval)

buildWeeklyRecurrences

protected static void buildWeeklyRecurrences(Calendar currentDate,
 long duration,
 List<Date> dates,
 Map<String,String> params,
 Date onOrAfter,
 Date until,
 boolean firstOnly,
 int interval)

buildMonthlyRecurrences

protected static void buildMonthlyRecurrences(Calendar currentDate,
 long duration,
 List<Date> dates,
 Map<String,String> params,
 Date onOrAfter,
 Date until,
 boolean firstOnly,
 int monthInterval)

buildYearlyRecurrences

protected static void buildYearlyRecurrences(Calendar currentDate,
 long duration,
 List<Date> dates,
 Map<String,String> params,
 Date onOrAfter,
 Date until,
 boolean firstOnly,
 int interval)