/*
 *  Tiled Map Editor, (c) 2004-2006
 *
 *  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.
 *
 *  JSON map writer contributed by
 *  Nader Akhres <nader.akhres@laposte.net>
 */

package tiled.plugins.json;

import java.text.ParseException;

import org.json.JSONArray;
import org.json.JSONObject;

/**
 * Contains utilities to extend JSON capabilities.
 *
 * @version $Id$
 */
public class JSONUtils
{
	/**
	 * Constructor.
	 */
	public JSONUtils() {
		//nothing
	}


	/**
	 * this method takes an object that is JSONArray already or JSONObject and convert it into JSONArray
	 * this is useful because JSON turn an xml entry into array or object according to number of entries
	 * using this method will avoid to treat as special cases whether you have one entrie or several
	 * @param obj
	 * @return JSONArray
	 * @throws ParseException
	 */
	public static JSONArray getAsJSONArray(Object obj) throws ParseException {

		JSONArray result = null; //we always convert to a json array: json object become a json array with one item

		if (obj instanceof JSONArray) {
			result = (JSONArray) obj;
		} else if (obj instanceof JSONObject) {
			result = new JSONArray();
			result.put(obj);
		} else {
			throw new ParseException("problem while interpreting "+obj,0);
		}

		return result;
	}


	/** unit test
	 * @param args*/
	/*
	public static void main(String[] args) {

		//test
	}
	*/
}