com.mlo55.utils.XMLUtils.java Source code

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Here is the source code for com.mlo55.utils.XMLUtils.java

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/*
 * Copyright 2002-2012 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.mlo55.utils;

import java.io.StringWriter;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;

import static javax.xml.transform.OutputKeys.ENCODING;
import static javax.xml.transform.OutputKeys.INDENT;
import static javax.xml.transform.OutputKeys.OMIT_XML_DECLARATION;

import org.springframework.xml.transform.StringSource;

/**
 *
 */
public final class XMLUtils {

    /**
     * Prevent instantiation.
     */
    private XMLUtils() {
    }

    /**
     * Prettifies XML data, e.g. add indentation.
     * @throws Exception
     */
    public static String formatXml(String result) throws Exception {
        Source source = new StringSource(result);
        Transformer transformer = getTransformer();
        StreamResult streamResult = new StreamResult(new StringWriter());
        transformer.transform(source, streamResult);
        final String xmlOut = streamResult.getWriter().toString();
        return xmlOut;
    }

    public static Transformer getTransformer() throws Exception {
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OMIT_XML_DECLARATION, "yes");
        transformer.setOutputProperty(ENCODING, "UTF-8");
        transformer.setOutputProperty(INDENT, "yes");
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", String.valueOf(2));
        return transformer;
    }

}