org.polarsys.reqcycle.traceability.utils.SerializationUtils.java Source code

Introduction

Here is the source code for org.polarsys.reqcycle.traceability.utils.SerializationUtils.java

Source

/*******************************************************************************
 *  Copyright (c) 2013 AtoS
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html *
 *  Contributors:
 *    Tristan Faure (AtoS) - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.polarsys.reqcycle.traceability.utils;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.apache.commons.codec.binary.Base64;
import org.polarsys.reqcycle.traceability.model.TType;

public class SerializationUtils {

    /**
     * Returns a serialized version of the given {@link TType}. The resulting {@link String} is url safe.
     * 
     * @param object
     * @return null if an error occurs
     */
    public static String serialize(final Object object) {
        ObjectOutputStream objOutStrm = null;
        try {
            final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            objOutStrm = new ObjectOutputStream(byteArrayOutputStream);
            objOutStrm.writeObject(object);
            objOutStrm.flush();
            final byte[] bytes = byteArrayOutputStream.toByteArray();
            return encode(bytes);
        } catch (final IOException e) {
            e.printStackTrace(); // TODO Error management
        } finally {
            if (objOutStrm != null) {
                try {
                    objOutStrm.close();
                } catch (final IOException e) {
                    e.printStackTrace(); // TODO Error management
                }
            }
        }
        return null;
    }

    /**
     * Return the {@link TType} serialized in the given string
     * 
     * @param getByteRepresentation
     *            (inputString)
     * @return null if an error occurs
     * 
     */
    public static <T> T deserialize(final String inputString) {
        ObjectInputStream stream = null;
        try {
            final byte[] inputBytes = decode(inputString);
            stream = new ObjectInputStream(new ByteArrayInputStream(inputBytes));
            @SuppressWarnings("unchecked")
            final T result = (T) stream.readObject();
            return result;
        } catch (final IOException e) {
            e.printStackTrace(); // TODO Error management
        } catch (final ClassNotFoundException e) {
            e.printStackTrace();
        } finally {
            if (stream != null) {
                try {
                    stream.close();
                } catch (final IOException e) {
                    e.printStackTrace(); // TODO Error management
                }
            }
        }
        return null;
    }

    private static String encode(final byte[] bytes) {
        final Base64 encoder = new Base64(true);
        return encoder.encodeToString(bytes);
    }

    private static byte[] decode(final String inputString) {
        final Base64 encoder = new Base64(true);
        return encoder.decode(inputString);
    }
}