/*
* Catroid: An on-device visual programming system for Android devices
* Copyright (C) 2010-2016 The Catrobat Team
* (<http://developer.catrobat.org/credits>)
*
* 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.
*
* An additional term exception under section 7 of the GNU Affero
* General Public License, version 3, is available at
* http://developer.catrobat.org/license_additional_term
*
* 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/>.
*/
package org.catrobat.catroid.io;
import android.util.Log;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.converters.reflection.ReflectionConverter;
import com.thoughtworks.xstream.converters.reflection.ReflectionProvider;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.mapper.Mapper;
import org.catrobat.catroid.content.Script;
public class XStreamScriptConverter extends ReflectionConverter {
private static final String TAG = XStreamScriptConverter.class.getSimpleName();
private static final String SCRIPTS_PACKAGE_NAME = "org.catrobat.catroid.content";
private static final String TYPE = "type";
public XStreamScriptConverter(Mapper mapper, ReflectionProvider reflectionProvider) {
super(mapper, reflectionProvider);
}
@Override
public boolean canConvert(Class type) {
return Script.class.isAssignableFrom(type);
}
@Override
protected void doMarshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
writer.addAttribute(TYPE, source.getClass().getSimpleName());
super.doMarshal(source, writer, context);
}
@Override
public Object doUnmarshal(Object result, HierarchicalStreamReader reader, UnmarshallingContext context) {
String type = reader.getAttribute(TYPE);
if (type != null) {
try {
Class cls = Class.forName(SCRIPTS_PACKAGE_NAME + "." + type);
Script script = (Script) reflectionProvider.newInstance(cls);
return super.doUnmarshal(script, reader, context);
} catch (ClassNotFoundException exception) {
Log.e(TAG, "Script class not found : " + result.toString(), exception);
}
}
return super.doUnmarshal(result, reader, context);
}
}