/*
* 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.text.Format;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import org.apache.commons.lang.time.FastDateFormat;
import org.codehaus.groovy.grails.web.json.JSONException;
import org.grails.web.converters.exceptions.ConverterException;
import org.grails.web.converters.marshaller.ObjectMarshaller;
/**
* JSON ObjectMarshaller which converts a Date Object, conforming to the ECMA-Script-Specification
* Draft, to a String value.
*
* @author Siegfried Puchbauer
* @since 1.1
*/
public class DateMarshaller implements ObjectMarshaller<JSON> {
private final Format formatter;
/**
* Constructor with a custom formatter.
* @param formatter the formatter
*/
public DateMarshaller(Format formatter) {
this.formatter = formatter;
}
/**
* Default constructor.
*/
public DateMarshaller() {
this(FastDateFormat.getInstance("yyyy-MM-dd'T'HH:mm:ss'Z'", TimeZone.getTimeZone("GMT"), Locale.US));
}
public boolean supports(Object object) {
return object instanceof Date;
}
public void marshalObject(Object object, JSON converter) throws ConverterException {
try {
converter.getWriter().value(formatter.format(object));
}
catch (JSONException e) {
throw new ConverterException(e);
}
}
}