/**
* Prevede DOM na String s danym kodovanim.
*
* @param node
* @param encoding muze byt null
* @param pretty prida nove radky za elementy
* @return
* @throws ProblemException
*/
public static String domToString(Node node, String encoding, boolean pretty)
throws ProblemException {
if (node == null) return null;
String usedEncoding = encoding == null ? DEFAULT_ENCODING : encoding;
if (Checker.isBlank(usedEncoding)) {
throw new ProblemException(XmlProblem.INVALID_ENCODING);
}
TransformerFactory transformerFactory = TransformerFactory.newInstance();
DOMSource source = new DOMSource(node);
try (StringWriter writer = new StringWriter()) {
StreamResult result = new StreamResult(writer);
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.ENCODING, usedEncoding);
transformer.setOutputProperty(OutputKeys.INDENT, pretty ? "yes" : "no");
transformer.setOutputProperty(OutputKeys.STANDALONE, "no");
transformer.transform(source, result);
return writer.toString();
} catch (Exception e) {
logger.error(e.toString(), e);
throw new ProblemException(e, XmlProblem.SERIALIZE_DOM);
}
}
/**
* Prevede XML retezec na DOM dokument.
*
* @param xml retezec obsahujici XML nebo HTML
* @return DOM dokument
* @throws ProblemException pokud dojde k chybe pri prevodu
*/
public static Document createDOMDocument(String xml) throws ProblemException {
if (Checker.isBlank(xml)) return null;
try {
InputSource is = new InputSource(new StringReader(xml));
return getDocBuilder().parse(is);
} catch (IOException | SAXException e) {
logger.error(e.toString(), e);
throw new ProblemException(e, XmlProblem.PARSING, e.toString());
}
}
