com.servoy.j2db.util.serialize.StringByteArraySerializer.java Source code

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Here is the source code for com.servoy.j2db.util.serialize.StringByteArraySerializer.java

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/*
 This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2011 Servoy BV
    
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU Affero General Public License as published by the Free
 Software Foundation; either version 3 of the License, or (at your option) any
 later version.
    
 This program 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 Affero General Public License for more details.
    
 You should have received a copy of the GNU Affero General Public License along
 with this program; if not, see http://www.gnu.org/licenses or write to the Free
 Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 */

package com.servoy.j2db.util.serialize;

import org.apache.commons.codec.binary.Base64;
import org.jabsorb.serializer.MarshallException;
import org.jabsorb.serializer.SerializerState;
import org.jabsorb.serializer.UnmarshallException;
import org.jabsorb.serializer.impl.StringSerializer;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * String serializer with handling of byte[] as base64 encoded string.
 * 
 * @author rgansevles
 *
 */
public class StringByteArraySerializer extends StringSerializer {
    /**
      * Classes that this can serialise to.
      */
    private static Class[] _JSONClasses = new Class[] { String.class, Integer.class, JSONObject.class };

    @Override
    public Class[] getJSONClasses() {
        return _JSONClasses;
    }

    @Override
    public Object marshall(SerializerState state, Object p, Object o) throws MarshallException {
        if (o instanceof byte[]) {
            try {
                JSONObject val = new JSONObject();
                if (ser.getMarshallClassHints()) {
                    val.put("javaClass", byte[].class.getName());
                }
                val.put("base64String", Base64.encodeBase64String((byte[]) o));
                return val;
            } catch (JSONException e) {
                throw new MarshallException("JSONException: " + e.getMessage(), e);
            }
        }

        return super.marshall(state, p, o);
    }

    @Override
    public Object unmarshall(SerializerState state, Class clazz, Object jso) throws UnmarshallException {
        if (clazz == byte[].class && jso instanceof JSONObject) {
            return Base64.decodeBase64(((JSONObject) jso).optString("base64String"));
        }

        return super.unmarshall(state, clazz, jso);
    }
}