Favoritable.java

package edu.mit.mobile.android.locast.data;
/*
 * Copyright (C) 2011  MIT Mobile Experience Lab
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */



import android.net.Uri;
import edu.mit.mobile.android.locast.data.JsonSyncableItem.SyncFieldMap;
import edu.mit.mobile.android.locast.data.JsonSyncableItem.SyncItem;

public class Favoritable {
	public interface Columns {
		public static final String
			_FAVORITED = "favorited";
	}

	public static final String QUERY_PARAM = "favorited";

	private static final String
		TRUE = "true",
		FALSE = "false";

	public static final SyncMap SYNC_MAP = new SyncMap();

	public static Uri getFavoritedUri(Uri uri, boolean favorited){
		return uri.buildUpon().appendQueryParameter(QUERY_PARAM, favorited ? TRUE : FALSE).build();
	}

	public static Boolean decodeFavoritedUri(Uri uri){
		final String favorited = uri.getQueryParameter(QUERY_PARAM);
		if (favorited == null){
			return null;

		}else if (TRUE.equals(favorited)){
			return true;

		}else if (FALSE.equals(favorited)){
			return false;
		}else{
			throw new IllegalArgumentException("unhandled value for favorited paramter");
		}
	}

	static {
		SYNC_MAP.put(Columns._FAVORITED, new JsonSyncableItem.SyncFieldMap("is_favorite", SyncFieldMap.BOOLEAN, SyncItem.FLAG_OPTIONAL | SyncFieldMap.SYNC_FROM));
	}
}