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Awake SQL is an open source framework that allows remote and secure JDBC access through HTTP.
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/*
 * This file is part of Awake SQL. 
 * Awake SQL: Remote JDBC access over HTTP.                                    
 * Copyright (C) 2013,  KawanSoft SAS
 * (http://www.kawansoft.com). All rights reserved.                    
 *                                                                         
 * Awake SQL 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.         
 *              
 * Awake SQL 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          
 * Lesser General Public License for more details.       
 *                                  
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see .
 *
 * If you develop commercial activities using Awake SQL, you must: 
 * a) disclose and distribute all source code of your own product,
 * b) license your own product under the GNU General Public License.
 * 
 * You can be released from the requirements of the license by
 * purchasing a commercial license. Buying such a license will allow you 
 * to ship Awake SQL with your closed source products without disclosing 
 * the source code.
 *
 * For more information, please contact KawanSoft SAS at this
 * address: [email protected]
 * 
 * Any modifications to this file must keep this entire header
 * intact.
 */
package org.awakefw.sql.json;

import java.util.List;
import java.util.Vector;

import org.awakefw.file.api.util.AwakeDebug;
import org.awakefw.file.util.AwakeClientLogger;
import org.json.simple.JSONArray;
import org.json.simple.JSONValue;

/**
 * @author Nicolas de Pomereu 
 * Class to transport int arrays between PC and Host with JSON
 */

public class IntArrayTransport {

    /** For debug info */
    private static boolean DEBUG = AwakeDebug
	    .isSet(IntArrayTransport.class);


    /**
     * Format to JSON a int array
     * @param intArray	the in array to format
     * @return	the JSON string
     */
    public static String toJson(int[] intArray) {
	if (intArray == null) {
	    throw new IllegalArgumentException("batchResults is null!");
	}
		
	List list = new Vector();
	for (int i = 0; i < intArray.length; i++) {
	    list.add(intArray[i]);
	}
		
	// NO!
	//List list = Arrays.asList(intArray);	
	
	String jsonString  = JSONValue.toJSONString(list);
	debug(jsonString);
	return jsonString;
	
    }

    /**
     * Format from JSON an int array
     * @param jsonString	the inat array in JSON format
     * @return the int array
     */
    public static int[] fromJson(String jsonString) {
	if (jsonString == null) {
	    throw new IllegalArgumentException("jsonString is null!");
	}
	
	debug(jsonString);
	
	Object JSONArray = JSONValue.parse(jsonString);
	JSONArray jsonArray= (JSONArray) JSONArray;

	int[] intArray = new int[jsonArray.size()];

	for (int i = 0; i < jsonArray.size(); i++) {
	    long myLong = (Long) jsonArray.get(i);
	    intArray[i] = (int) myLong;
	}
	
	// free JSONArray
	jsonArray = null;
	
	return intArray;
	
    }

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception {
	int[] myArray = { 1, 3, 5, 7, 9 };
	String s = IntArrayTransport.toJson(myArray);

	System.out.println(s);

	int[] backArray = IntArrayTransport.fromJson(s);

	int cpt = 0;
	System.out.print("[");
	for (int i : backArray) {
	    System.out.print(i);
	    if (cpt++ < backArray.length - 1)
		System.out.print(",");
	}
	System.out.println("]");

    }

    private static void debug(String s) {
	if (DEBUG) {
	    AwakeClientLogger.log(s);
	}
    }

}