iCal4j Command Line

A command framework for managing iCalendar and vCard data.

Overview

iCal4j Command is a collection of operations for common iCalendar and vCard use cases. This includes direct manipulation of data objects, integration with persistence stores, and systems interoperability.

Calendar Commands

The following commands directly manipulate iCalendar objects:

• Validator - check validity of iCalendar data
• Filter - select a subset of iCalendar components using filter expressions
• Free Busy - generate free/busy information for specified iCalendar data
• Replace UIDs - regenerate UIDs for all iCalendar components

vCard Commands

• ...

Template Commands

• Event - generate/modify iCalendar data using shorthand template input

Store Commands

• Create Collection - create a new collection for a calendar store
• ...

Collection Commands

• ...

Channel Commands

• ...

System Properties

The following table describes System properties applicable to the iCal4j User Agent.

System Property	Description	Value	Default
org.ical4j.command.prodid	An application identifier used as the value for the iCalendar PRODID property	A string (e.g. -//Apple Inc.//Mac OS X 10.8.5//EN)	-//iCal4j//User Agent//EN
org.ical4j.command.organizer	The default URI used as the value for the iCalendar ORGANIZER property	A URI (e.g. mailto:johnd@example.com)	-
org.ical4j.command.uidgenerator	The UidGenerator implementation used to create UID properties	A fully qualified class name	net.fortuna.ical4j.util.RandomUidGenerator

Command Line Usage

Publish a collection of events

ical4j publish -F ./Australian32Holidays.ics

Result:

BEGIN:VCALENDAR
PRODID:iCal4j User Agent
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
UID:D416469E-C414-11D6-BA97-003065F198AC
DTSTAMP:20020906T094459Z
SUMMARY:Australia Day
RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=1
DTSTART;VALUE=DATE:20020126
DTEND;VALUE=DATE:20020127
ORGANIZER:johnd@example.com
SEQUENCE:0
END:VEVENT
...