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/**
* Copyright (C) 2014 The CyanogenMod Project
*/
package com.android.calendar.icalendar;
import java.util.HashMap;
import java.util.LinkedList;
/**
* Models the Calendar/VCalendar component of the iCalendar format
*/
public class VCalendar {
// valid property identifiers of the component
// TODO: only a partial list of attributes have been implemented, implement the rest
public static String VERSION = "VERSION";
public static String PRODID = "PRODID";
public static String CALSCALE = "CALSCALE";
public static String METHOD = "METHOD";
public final static String PRODUCT_IDENTIFIER = "-//Cyanogen Inc//com.android.calendar";
// stores the -arity of the attributes that this component can have
private final static HashMap<String, Integer> sPropertyList = new HashMap<String, Integer>();
// initialize approved list of iCal Calendar properties
static {
sPropertyList.put(VERSION, 1);
sPropertyList.put(PRODID, 1);
sPropertyList.put(CALSCALE, 1);
sPropertyList.put(METHOD, 1);
}
// stores attributes and their corresponding values belonging to the Calendar object
public HashMap<String, String> mProperties;
public LinkedList<VEvent> mEvents; // events that belong to this Calendar object
/**
* Constructor
*/
public VCalendar() {
mProperties = new HashMap<String, String>();
mEvents = new LinkedList<VEvent>();
}
/**
* Add specified property
* @param property
* @param value
* @return
*/
public boolean addProperty(String property, String value) {
// since all the required mProperties are unary (only one can exist) , taking a shortcut here
// when multiples of a property can exist , enforce that here .. cleverly
if (sPropertyList.containsKey(property) && value != null) {
mProperties.put(property, IcalendarUtils.cleanseString(value));
return true;
}
return false;
}
/**
* Add Event to calendar
* @param event
*/
public void addEvent(VEvent event) {
if (event != null) mEvents.add(event);
}
/**
*
* @return
*/
public LinkedList<VEvent> getAllEvents() {
return mEvents;
}
/**
* Returns the iCal representation of the calendar and all of its inherent components
* @return
*/
public String getICalFormattedString() {
StringBuilder output = new StringBuilder();
// Add Event properties
// TODO: add the ability to specify the order in which to compose the properties
output.append("BEGIN:VCALENDAR\n");
for (String property : mProperties.keySet() ) {
output.append(property + ":" + mProperties.get(property) + "\n");
}
// enforce line length requirements
output = IcalendarUtils.enforceICalLineLength(output);
// add event
for (VEvent event : mEvents) {
output.append(event.getICalFormattedString());
}
output.append("END:VCALENDAR\n");
return output.toString();
}
/**
* TODO: Aggressive validation of VCalendar and all of its components to ensure they conform
* to the ical specification
* @return
*/
private boolean validate() {
return false;
}
}
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