com.github.woozoo73.ht.format.XmlFormat.java Source code

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Here is the source code for com.github.woozoo73.ht.format.XmlFormat.java

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/*
 * Copyright 2013 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 com.github.woozoo73.ht.format;

import java.io.StringWriter;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.github.woozoo73.ht.Invocation;

/**
 * XML format.
 * 
 * @author woozoo73
 */
public class XmlFormat implements Format {

    private static final Log logger = LogFactory.getLog(XmlFormat.class);

    @Override
    public String format(Invocation invocation) {
        String output = null;

        try {
            output = formatInternal(invocation);
        } catch (Exception e) {
            logger.warn(e.getMessage(), e);
        }

        return output;
    }

    public String formatInternal(Invocation invocation) throws Exception {
        JAXBContext jaxbContext = JAXBContext.newInstance(invocation.getClass());
        Marshaller marshaller = jaxbContext.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

        StringWriter writer = new StringWriter();
        marshaller.marshal(invocation, writer);

        String xml = writer.getBuffer().toString();

        return xml;
    }

}