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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common
 * Development and Distribution License("CDDL") (collectively, the
 * "License"). You may not use this file except in compliance with the
 * License. You can obtain a copy of the License at
 * http://www.netbeans.org/cddl-gplv2.html
 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
 * specific language governing permissions and limitations under the
 * License.  When distributing the software, include this License Header
 * Notice in each file and include the License file at
 * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the GPL Version 2 section of the License file that
 * accompanied this code. If applicable, add the following below the
 * License Header, with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * Contributor(s):
 *
 * The Original Software is NetBeans. The Initial Developer of the Original
 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
 * Microsystems, Inc. All Rights Reserved.
 *
 * If you wish your version of this file to be governed by only the CDDL
 * or only the GPL Version 2, indicate your decision by adding
 * "[Contributor] elects to include this software in this distribution
 * under the [CDDL or GPL Version 2] license." If you do not indicate a
 * single choice of license, a recipient has the option to distribute
 * your version of this file under either the CDDL, the GPL Version 2 or
 * to extend the choice of license to its licensees as provided above.
 * However, if you add GPL Version 2 code and therefore, elected the GPL
 * Version 2 license, then the option applies only if the new code is
 * made subject to such option by the copyright holder.
 */
package org.openide.filesystems.data;

import java.util.ArrayList;
import java.io.*;

/**
 * Serves for generating
*/
public class SerialData extends Object implements Serializable {

    private static String serialData;

    private int data1;
    private String data2;
    private Object data3;
    private ArrayList data4;

    /** Creates new SerialData */
    public SerialData() {
        data1 = 0;
        data2 = "data2";
        data3 = new Integer(5);
        data4 = new ArrayList();
        data4.add(data3);
    }

    public static String getSerialDataString() throws Exception {
        if (serialData == null) {
            serialData = createSerialDataString();
        }
        
        return serialData;
    }
    
    private static String createSerialDataString() throws Exception {
        ByteArrayOutputStream barros = new ByteArrayOutputStream();
        ObjectOutputStream obos = new ObjectOutputStream(barros);
        
        obos.writeObject(new SerialData());
        obos.close();
        
        return bytes2String(barros.toByteArray());
    }

    /**
    * @param args the command line arguments
    */
    /*
    public static void main(String args[]) throws Exception {
        ByteArrayOutputStream barros = new ByteArrayOutputStream();
        ObjectOutputStream obos = new ObjectOutputStream(barros);
        
        obos.writeObject(new SerialData());
        obos.close();
        
        byte[] bytes = barros.toByteArray();
        System.out.println(bytes2String(bytes));
    }*/
    
    private static String bytes2String (byte[] bytes) {
        StringBuffer buffer = new StringBuffer(2 * bytes.length);
        
        for (int i = 0; i < bytes.length; i++) {
            addByte(bytes[i], buffer);
        }
        
        return buffer.toString();
    }
    
    private static void addByte(int b, StringBuffer buffer) {
        if (b < 0) {
            b += 256;
        }
        
        int rest = b % 16;
        b = b / 16;
        buffer.append(toChar(b));
        buffer.append(toChar(rest));
    }
    
    private static char toChar(int b) {
        if (b > 9) {
            return (char) ('a' + b - 10);
        } else {
            return (char) ('0' + b);
        }
    }
}
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