/*
* Copyright 2004-2008 the original author or authors.
*
* 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 org.grails.web.converters.marshaller.json;
import grails.converters.JSON;
import java.lang.reflect.Method;
import org.codehaus.groovy.grails.web.json.JSONWriter;
import org.grails.web.converters.exceptions.ConverterException;
import org.grails.web.converters.marshaller.ObjectMarshaller;
import org.springframework.beans.BeanUtils;
/**
* @author Siegfried Puchbauer
* @since 1.1
*/
public class EnumMarshaller implements ObjectMarshaller<JSON> {
public boolean supports(Object object) {
return object.getClass().isEnum();
}
public void marshalObject(Object en, JSON json) throws ConverterException {
JSONWriter writer = json.getWriter();
try {
writer.object();
Class<?> enumClass = en.getClass();
json.property("enumType", enumClass.getName());
Method nameMethod = BeanUtils.findDeclaredMethod(enumClass, "name", null);
try {
json.property("name",nameMethod.invoke(en));
}
catch (Exception e) {
json.property("name", "");
}
writer.endObject();
}
catch (ConverterException ce) {
throw ce;
}
catch (Exception e) {
throw new ConverterException("Error converting Enum with class " + en.getClass().getName(), e);
}
}
}