Java Utililty Methods XML Format

OutputStream applyTransformation(InputStream xsltStream, Map xsltParameters, InputStream inputXmlStream, OutputStream outputStream)
Apply the XSLT transformation (xsltStream) to the xml given (inputXmlStream) and write the output to outputStream

return applyTransformation(new StreamSource(xsltStream), xsltParameters, inputXmlStream, outputStream);

String format(final String xml)
Parse string as XML document and return string with reformatted document.

return toString(getXMLDocument(xml));

String format(Node node)
format

try {
 Transformer transformer = TransformerFactory.newInstance().newTransformer();
 transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
 transformer.setOutputProperty(OutputKeys.INDENT, "yes");
 transformer.setOutputProperty(OutputKeys.METHOD, "xml");
 transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
 StringWriter sw = new StringWriter();
 transformer.transform(new DOMSource(node), new StreamResult(sw));
...

String format(Node node, String indent)
Format generated xml doc by indentation

StringBuilder formatted = new StringBuilder();
if (node.getNodeType() == Node.ELEMENT_NODE) {
 StringBuilder attributes = new StringBuilder();
 for (int k = 0; k < node.getAttributes().getLength(); k++) {
 attributes.append(" ");
 attributes.append(node.getAttributes().item(k).getNodeName());
 attributes.append("=\"");
 attributes.append(node.getAttributes().item(k).getNodeValue());
...

String format(String unformattedXml)
format

try {
 ByteArrayOutputStream out = new ByteArrayOutputStream();
 Transformer transformer;
 transformer = factory.newTransformer();
 transformer.setOutputProperty(OutputKeys.INDENT, "yes");
 StreamResult result = new StreamResult(out);
 StreamSource source = new StreamSource(new ByteArrayInputStream(unformattedXml.getBytes()));
 transformer.transform(source, result);
...

String formatAttributes(Node node)
Returns formatted attributes of the node.

StringBuilder sb = new StringBuilder();
NamedNodeMap attrs = node.getAttributes();
for (int i = 0; i < attrs.getLength(); i++) {
 Node attr = attrs.item(i);
 sb.append(' ').append(attr.getNodeName()).append("= '").append(attr.getNodeValue()).append("'");
return sb.toString();

void formattedPrint(Node xml, OutputStream out)
formatted Print

TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer tf = tFactory.newTransformer();
tf.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
tf.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
tf.setOutputProperty(OutputKeys.INDENT, "yes");
tf.setOutputProperty(OutputKeys.METHOD, "xml");
tf.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "5");
StreamResult result = new StreamResult(new OutputStreamWriter(out, "UTF-8"));
...

String formatXML(byte[] xmlData, int indent)
format XML

Source xmlInput = new StreamSource(new ByteArrayInputStream(xmlData));
StreamResult xmlOutput = new StreamResult(new StringWriter());
TransformerFactory transformerFactory = TransformerFactory.newInstance();
transformerFactory.setAttribute("indent-number", indent);
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.transform(xmlInput, xmlOutput);
return xmlOutput.getWriter().toString();
...

String formatXML(String unformatted)
format XML

if (unformatted == null)
 return null;
String unformattedNoWhiteSpaces = unformatted.toString().replaceAll(">[\\s]+<", "><");
Source xmlInput = new StreamSource(new StringReader(unformattedNoWhiteSpaces));
StreamResult xmlOutput = new StreamResult(new StringWriter());
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
...

String formatXml(String xml)
Takes given XML and indents everything with 2 spaces.

try {
 Source xmlInput = new StreamSource(new StringReader(xml));
 StringWriter stringWriter = new StringWriter();
 StreamResult xmlOutput = new StreamResult(stringWriter);
 TransformerFactory transformerFactory = TransformerFactory.newInstance();
 transformerFactory.setAttribute("indent-number", 2);
 Transformer transformer = transformerFactory.newTransformer();
 transformer.setOutputProperty(OutputKeys.INDENT, "yes");
...