XMLWriter.java

/*
 * Copyright 2010-2011 Ning, Inc.
 *
 * Ning licenses this file to you 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.killbill.xmlloader;

import java.io.ByteArrayOutputStream;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;

public class XMLWriter<T> {
    private static final int MAX_XML_SIZE_IN_BYTES = 100000;

    public static <T> String writeXML(final T object, final Class<T> type) throws Exception {
        final JAXBContext context = JAXBContext.newInstance(type);
        final Marshaller marshaller = context.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
        final ByteArrayOutputStream output = new ByteArrayOutputStream(MAX_XML_SIZE_IN_BYTES);

        marshaller.marshal(object, output);

        return new String(output.toByteArray());
    }
}