Java XML Format prettyFormat(String strInput, int nIndent)

Description

Pretty format a given XML document

License

Apache License

Parameter

Parameter	Description
strInput	Valid XML document (No validity check yet!)
nIndent	Indent

Exception

Parameter	Description
Exception	in error case

Return

Formatted XML document

Declaration

public static String prettyFormat(String strInput, int nIndent) throws Exception 

Method Source Code

//package com.java2s;
//License from project: Apache 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.TransformerFactory;

import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

public class Main {
    /**/*w  w  w .  j  a  va 2  s.c  o m*/
     * Pretty format a given XML document
     *
     * @param strInput
     *            Valid XML document (No validity check yet!)
     * @param nIndent
     *            Indent
     * @return Formatted XML document
     * @throws Exception
     *             in error case
     */
    public static String prettyFormat(String strInput, int nIndent) throws Exception {
        try {
            Source xmlInput = new StreamSource(new StringReader(strInput));
            StringWriter stringWriter = new StringWriter();
            StreamResult xmlOutput = new StreamResult(stringWriter);
            TransformerFactory transformerFactory = TransformerFactory.newInstance();
            transformerFactory.setAttribute("indent-number", nIndent);
            Transformer transformer = transformerFactory.newTransformer();
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.setOutputProperty(OutputKeys.METHOD, "xml");
            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", String.valueOf(nIndent));
            transformer.transform(xmlInput, xmlOutput);
            return xmlOutput.getWriter().toString();
        } catch (Exception e) {
            //            Logger.XMLEval.logState("Pretty formatting: " + e.getMessage(), LogLevel.Error);
            throw e;
        }
    }

    /**
     * Pretty format a given XML document with indent of 2
     *
     * @param strInput
     *            Valid XML document (No validity check yet!)
     * @return Formatted XML document
     * @throws Exception
     *             in error case
     */
    public static String prettyFormat(String strInput) throws Exception {
        return prettyFormat(strInput, 2);
    }
}

Related

1. prettifyString(String string)
2. prettyFormat(String input)
3. prettyFormat(String input)
4. prettyFormat(String input)
5. prettyFormat(String input, int indent)
6. prettyFormatXml(final InputStream xml, final OutputStream os, final int indent)
7. prettyFormatXmlText(String text)
8. prettyPrint(final Source source)
9. prettyPrint(String header, String xml)