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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.lang.reflect.Type;
import java.util.List;

import org.awakefw.file.api.util.AwakeDebug;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;

/**
 * 
 * Method fromJson/toJson to transport with Json a structure with Google Json
 * 
 * @author Nicolas de Pomereu
 * 
 */
public class StatementHolderTransportGson {
    /** Debug flag */
    private static boolean DEBUG = AwakeDebug
	    .isSet(StatementHolderTransportGson.class);

    /**
     * Convert to Json a unique of StatementHolder
     * 
     * @return the instance converted to Json
     */
    @SuppressWarnings("unused")
    public static String toJson(StatementHolder statementHolder) {

	if (true)
	    throw new IllegalStateException("Not used anymore!");

	Gson gson = new Gson();
	Type theType = new TypeToken() {
	}.getType();
	String jsonString = gson.toJson(statementHolder, theType);
	return jsonString;
    }

    /**
     * Convert from a Json string a List of StatementHolder
     * 
     * @return the StatementHolder list converted from Json
     */
    @SuppressWarnings("unused")
    public static StatementHolder fromJson(String jsonString) {

	if (true)
	    throw new IllegalStateException("Not used anymore!");

	Gson gson = new Gson();
	Type theType = new TypeToken() {
	}.getType();

	StatementHolder statementHolder = gson.fromJson(jsonString, theType);
	return statementHolder;
    }

    /**
     * Convert to Json a List of StatementHolder
     * 
     * @return the instance converted to Json
     */
    @SuppressWarnings("unused")
    public static String toJson(

    List preparedStatementHolderList) {

	if (true)
	    throw new IllegalStateException("Not used anymore!");

	// See http://sites.google.com/site/gson/gson-user-guide
	Gson gson = new Gson();
	Type theType = new TypeToken>() {
	}.getType();
	String jsonString = gson.toJson(preparedStatementHolderList, theType);

	debug("List         : " + jsonString);
	debug("List length(): " + jsonString.length());
	return jsonString;
    }

    /**
     * Convert to Json a List of StatementHolder
     * 
     * @return the instance converted to Json
     */
    @SuppressWarnings("unused")
    public static List fromJsonList(String jsonString) {

	if (true)
	    throw new IllegalStateException("Not used anymore!");

	Gson gson = new Gson();
	Type theType = new TypeToken>() {
	}.getType();
	List statementHolder = gson.fromJson(jsonString,
		theType);
	return statementHolder;
    }

    /**
     * Debug
     * 
     * @param s
     */
    public static void debug(String s) {
	if (DEBUG) {
	    System.out.println(s);
	}
    }

}