Package net.fortuna.ical4j.util

Class Calendars

java.lang.Object
net.fortuna.ical4j.util.Calendars
public final class Calendars extends Object
$Id$ Created on 10/11/2006 Utility method for working with Calendars.

  • Method Details

    • load

      public static Calendar load(String filename) throws IOException, ParserException
      Loads a calendar from the specified file.
      Parameters:
      filename - the name of the file from which to load calendar data
      Returns:
      returns a new calendar instance initialised from the specified file
      Throws:
      IOException - occurs when there is an error reading the specified file
      ParserException - occurs when the data in the specified file is invalid

    • load

      public static Calendar load(URL url) throws IOException, ParserException
      Loads a calendar from the specified URL.
      Parameters:
      url - the URL from which to load calendar data
      Returns:
      returns a new calendar instance initialised from the specified URL
      Throws:
      IOException - occurs when there is an error reading from the specified URL
      ParserException - occurs when the data in the specified URL is invalid

    • merge

      public static Calendar merge(Calendar c1, Calendar c2)
      Merge all properties and components from two specified calendars into one instance. Note that the merge process is not very sophisticated, and may result in invalid calendar data (e.g. multiple properties of a type that should only be specified once).
      Parameters:
      c1 - the first calendar to merge
      c2 - the second calendar to merge
      Returns:
      a Calendar instance containing all properties and components from both of the specified calendars

    • wrap

      public static Calendar wrap(CalendarComponent... component)
      Wraps a component in a calendar.
      Parameters:
      component - the component to wrap with a calendar
      Returns:
      a calendar containing the specified component

    • split

      public static Calendar[] split(Calendar calendar)
      Splits a calendar object into distinct calendar objects for unique identifers (UID).
      Parameters:
      calendar - a calendar instance
      Returns:
      an array of calendar objects

    • getUid

      public static Uid getUid(Calendar calendar) throws ConstraintViolationException
      Returns a unique identifier as specified by components in the provided calendar.
      Parameters:
      calendar - a calendar instance
      Returns:
      the UID property
      Throws:
      ConstraintViolationException - if zero or more than one unique identifer is found in the specified calendar

    • getContentType

      public static String getContentType(Calendar calendar, Charset charset)
      Returns an appropriate MIME Content-Type for the specified calendar object.
      Parameters:
      calendar - a calendar instance
      charset - an optional encoding
      Returns:
      a content type string