Caldavsync Sources / file revision

 /**

  * Copyright (c) 2012-2013, Gerald Garcia, Timo Berger

  * 

  * This file is part of Andoid Caldav Sync Adapter Free.

  *

  * Andoid Caldav Sync Adapter Free is free software: you can redistribute 

  * it and/or modify it under the terms of the GNU General Public License 

  * as published by the Free Software Foundation, either version 3 of the 

  * License, or at your option any later version.

  *

  * Andoid Caldav Sync Adapter Free is distributed in the hope that 

  * it will be useful, but WITHOUT ANY WARRANTY; without even the implied 

  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with Andoid Caldav Sync Adapter Free.  

  * If not, see <http://www.gnu.org/licenses/>.

  * 

  */

 package org.gege.caldavsyncadapter;

 import android.content.ContentValues;

 import android.provider.CalendarContract.Events;

 import android.util.Log;

 /**

  * abstract class for Calendar and Android events 

  */

 abstract public class Event {

 	private static final String TAG = "Event";

 	/**

 	 * stores the ETAG of an event

 	 */

 	public static String ETAG = Events.SYNC_DATA1;

 	/**

 	 * internal Tag used to identify deleted events 

 	 */

 	public static String INTERNALTAG = Events.SYNC_DATA2;

 	/**

 	 * store the whole VEVENT in here

 	 * missing TAGs they might be missing for google update

 	 * 

 	 * CREATED:20130906T102857Z

 	 * DTSTAMP:20130906T102857Z

 	 * LAST-MODIFIED:20130906T102857Z

 	 * SEQUENCE:0

 	 */

 	public static String RAWDATA = Events.SYNC_DATA3;

 	/**

 	 * stores the UID of an Event

 	 * example: UID:e6be67c6-eff0-44f8-a1a0-6c2cb1029944-caldavsyncadapter

 	 */

 	public static String UID = Events.SYNC_DATA4;

 	/**

 	 * the event transformed into ContentValues

 	 */

 	public ContentValues ContentValues = new ContentValues();

 	abstract public String getETag();

 	abstract public void setETag(String ETag);

 	/**

 	 * returns a list of all items that are comparable with this sync adapter

 	 * @return a list of all items that are comparable with this sync adapter

 	 */

 	public static java.util.ArrayList<String> getComparableItems() {

 		java.util.ArrayList<String> Result = new java.util.ArrayList<String>();

 		Result.add(Events.DTSTART);

 		Result.add(Events.DTEND);

 		Result.add(Events.EVENT_TIMEZONE);

 		Result.add(Events.EVENT_END_TIMEZONE);

 		Result.add(Events.ALL_DAY);

 		Result.add(Events.DURATION);

 		Result.add(Events.TITLE);

 		Result.add(Events.CALENDAR_ID);

 		Result.add(Events._SYNC_ID);

 		//Result.add(Events.SYNC_DATA1);

 		Result.add(ETAG);

 		Result.add(Events.DESCRIPTION);

 		Result.add(Events.EVENT_LOCATION);

 		Result.add(Events.ACCESS_LEVEL);

 		Result.add(Events.STATUS);

 		Result.add(Events.RDATE);

 		Result.add(Events.RRULE);

 		Result.add(Events.EXRULE);

 		Result.add(Events.EXDATE);

 		Result.add(UID);

 		return Result;

 	}

 	/**

 	 * sets the AndroidCalendarId for this event

 	 * @param ID the AndroidCalendarId for this event

 	 */

 	public void setAndroidCalendarId(long ID) {

 		if (this.ContentValues.containsKey(Events.CALENDAR_ID))

 			this.ContentValues.remove(Events.CALENDAR_ID);

 		this.ContentValues.put(Events.CALENDAR_ID, ID);

 	}

 	/**

 	 * returns the AndroidCalendarId for this event.

 	 * @return the AndroidCalendarId for this event

 	 */

 	public long getAndroidCalendarId() {

 		long Result = -1;

 		if (this.ContentValues.containsKey(Events.CALENDAR_ID))

 			Result = this.ContentValues.getAsLong(Events.CALENDAR_ID);

 		return Result;

 	}

 	/**

 	 * returns the UID for this event. you can also check, whether the UID was stored from server. the V1.7 release and before didn't save them.

 	 * example: UID:e6be67c6-eff0-44f8-a1a0-6c2cb1029944-caldavsyncadapter

 	 * @return the UID for this event

 	 */

 	public String getUID() {

 		String Result = "";

 		if (this.ContentValues.containsKey(UID))

 			Result = this.ContentValues.getAsString(UID);

 		return Result;

 	}

 	/**

 	 * compares the given ContentValues with the current ones for differences

 	 * @param calendarEventValues the contentValues of the calendar event

 	 * @return if the events are different

 	 */

 	public boolean checkEventValuesChanged(ContentValues calendarEventValues) {

 		boolean Result = false;

 		Object ValueAndroid = null;

 		Object ValueCalendar = null;

 		java.util.ArrayList<String> CompareItems = Event.getComparableItems();

 		for (String Key: CompareItems) {

 			if (this.ContentValues.containsKey(Key)) 

 				ValueAndroid = this.ContentValues.get(Key);

 			else

 				ValueAndroid = null;

 			if (calendarEventValues.containsKey(Key))

 				ValueCalendar = calendarEventValues.get(Key);

 			else

 				ValueCalendar = null;

 			/*

 			 * TODO: Sync is designed to "Server always wins", should be a general option for this adapter

 			 */

 			if (ValueAndroid != null) {

 				if (ValueCalendar != null) {

 					if (!ValueAndroid.toString().equals(ValueCalendar.toString())) {

 						Log.d(TAG, "difference in " + Key.toString() + ":" + ValueAndroid.toString() + " <> " + ValueCalendar.toString());

 						this.ContentValues.put(Key,ValueCalendar.toString());

 						Result = true;

 					}

 				} else {

 					Log.d(TAG, "difference in " + Key.toString() + ":" + ValueAndroid.toString() + " <> null");

 					this.ContentValues.putNull(Key);

 					Result = true;

 				}

 			} else {

 				if (ValueCalendar != null) {

 					Log.d(TAG, "difference in " + Key.toString() + ":null <> " + ValueCalendar.toString());

 					this.ContentValues.put(Key, ValueCalendar.toString());

 					Result = true;

 				} else {

 					// both null -> this is ok

 				}

 			}

 		}

 		return Result;

 	}

 }