@Override
public void processMeta(XmlMetadata file) {
if (controlDoc == null) {
// some action and
} else {
// real work here
if (this.xpathExp == null) { // make this an assertion test
} else {
Document testDoc = getDocFragment(xpathExp, file);
if (testDoc != null) {
if (isdifferent(testDoc, controlDoc)) {
// process for print formating (identify specific)
LOG.debug("XML differences found");
} else {
// remove this from list of things to report.
LOG.debug("Remove from list. XML has default settings");
LinkedList<AbstractDecoration> dList =
new LinkedList<AbstractDecoration>(file.getDecorations());
try {
file.getDecorations().remove(dList.removeLast());
} catch (NoSuchElementException ne) {
LOG.debug("Nothing removed. Decoration list is empty.");
}
}
}
}
}
return;
}
/**
* Extract an XML element.
*
* @param xpathExp
* @param file
* @return
*/
private Document getDocFragment(String xpathExp, XmlMetadata file) {
Document testDoc = null;
try {
XPath xpath = XPathFactory.newInstance().newXPath();
Node node = (Node) xpath.evaluate(xpathExp, file.getParsedDocument(), XPathConstants.NODE);
if (node != null) {
TransformerFactory transFactory = TransformerFactory.newInstance();
Transformer transformer = transFactory.newTransformer();
StringWriter buffer = new StringWriter();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.transform(new DOMSource(node), new StreamResult(buffer));
String testStr = buffer.toString();
LOG.debug("src string: " + testStr);
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
testDoc =
dBuilder.parse(new InputSource(new ByteArrayInputStream(testStr.getBytes("utf-8"))));
}
} catch (XPathExpressionException xee) {
LOG.error("Invalid XPath expression: " + xpathExp);
} catch (Exception e) {
LOG.error("Error extracting XML content: ", e);
}
return testDoc;
}