Java XML Format prettyFormat(String input)

Description

Format the provided XML input with a default indentation of 2.

License

Open Source License

Parameter

Parameter	Description
input	XML input to format.

Exception

Parameter	Description
TransformerException	if some problem occur while processing the xml

Return

Formatted XML.

Declaration

public static String prettyFormat(String input) throws TransformerException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.StringReader;
import java.io.StringWriter;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

public class Main {
    /**//from w  ww  .  j  a  v a 2 s .  com
     * Format the provided XML input with a default indentation of <i>2</i>.
     * 
     * @param input
     *            XML input to format.
     * @return Formatted XML.
     * @throws TransformerException
     *             if some problem occur while processing the xml
     * @see #prettyFormat(String, int)
     */
    public static String prettyFormat(String input) throws TransformerException {
        return prettyFormat(input, 2);
    }

    /**
     * Format the provided XML input.
     * 
     * @param input
     *            XML input to format.
     * @param indent
     *            Indentation to use on formatted XML.
     * @return Formatted XML.
     * @throws TransformerException
     *             if some problem occur while processing the xml
     * @see #prettyFormat(String)
     */
    public static String prettyFormat(String input, Integer indent) throws TransformerException {
        if (input != null) {
            Source xmlInput = new StreamSource(new StringReader(input));
            StringWriter stringWriter = new StringWriter();
            StreamResult xmlOutput = new StreamResult(stringWriter);
            TransformerFactory transformerFactory = TransformerFactory.newInstance();

            Transformer transformer = transformerFactory.newTransformer();
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount",
                    String.valueOf(indent == null ? 2 : indent));
            transformer.transform(xmlInput, xmlOutput);
            return xmlOutput.getWriter().toString();
        }
        return input;
    }
}

Related

1. formatXML(Transformer transformer)
2. formatXMLStr(String xml)
3. prettifyString(String string)
4. prettyFormat(String input)
5. prettyFormat(String input)
6. prettyFormat(String input, int indent)
7. prettyFormat(String strInput, int nIndent)
8. prettyFormatXml(final InputStream xml, final OutputStream os, final int indent)
9. prettyFormatXmlText(String text)