/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package br.com.caelum.vraptor.serialization.xstream;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.Dependent;
import br.com.caelum.vraptor.validator.Message;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.ExtendedHierarchicalStreamWriter;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
/**
* Converter for normalizing {@link Message} serialization
* @author Lucas Cavalcanti
* @since 3.4.0
*/
@ApplicationScoped
public class MessageConverter implements Converter {
@Override
public boolean canConvert(Class type) {
return Message.class.isAssignableFrom(type);
}
@Override
public void marshal(Object val, HierarchicalStreamWriter writer, MarshallingContext context) {
Message message = (Message) val;
startNode("message", writer);
writer.setValue(message.getMessage());
writer.endNode();
startNode("category", writer);
writer.setValue(message.getCategory());
writer.endNode();
}
private void startNode(String name, HierarchicalStreamWriter writer) {
if (writer instanceof ExtendedHierarchicalStreamWriter) {
ExtendedHierarchicalStreamWriter extendedWriter = (ExtendedHierarchicalStreamWriter) writer;
extendedWriter.startNode(name, String.class);
} else {
writer.startNode(name);
}
}
@Override
public Object unmarshal(HierarchicalStreamReader reader,
UnmarshallingContext context) {
return null;
}
}