/** Unwraps original throwable from the transformer/ SAX stack. */
private Throwable unwrapCause(TransformerException e) {
Throwable t;
if (e.getException() != null) {
t = e.getException();
} else if (e.getCause() != null) {
t = e.getCause();
} else {
return e;
}
do {
if (t instanceof IOException) {
// break early on IOException
return t;
} else if (t.getCause() != null) {
t = t.getCause();
} else if (t instanceof SAXException && ((SAXException) t).getException() != null) {
t = ((SAXException) t).getException();
} else {
return t;
}
} while (true);
}
/**
* Formats the json content and print it
*
* @param xml the xml content
*/
@Override
public void xml(String xml) {
if (TextUtils.isEmpty(xml)) {
d("Empty/Null xml content");
return;
}
try {
Source xmlInput = new StreamSource(new StringReader(xml));
StreamResult xmlOutput = new StreamResult(new StringWriter());
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
transformer.transform(xmlInput, xmlOutput);
d(xmlOutput.getWriter().toString().replaceFirst(">", ">\n"));
} catch (TransformerException e) {
e(e.getCause().getMessage() + "\n" + xml);
}
}
/**
* Evaluate XPath string to an XObject. XPath namespace prefixes are resolved from the
* namespaceNode. The implementation of this is a little slow, since it creates a number of
* objects each time it is called. This could be optimized to keep the same objects around, but
* then thread-safety issues would arise.
*
* @param contextNode The node to start searching from.
* @param xpathnode
* @param str
* @param prefixResolver Will be called if the parser encounters namespace prefixes, to resolve
* the prefixes to URLs.
* @return An XObject, which can be used to obtain a string, number, nodelist, etc, should never
* be null.
* @see org.apache.xpath.objects.XObject
* @see org.apache.xpath.objects.XNull
* @see org.apache.xpath.objects.XBoolean
* @see org.apache.xpath.objects.XNumber
* @see org.apache.xpath.objects.XString
* @see org.apache.xpath.objects.XRTreeFrag
* @throws TransformerException
*/
public XObject eval(Node contextNode, Node xpathnode, String str, PrefixResolver prefixResolver)
throws TransformerException {
// Since we don't have a XML Parser involved here, install some default support
// for things like namespaces, etc.
// (Changed from: XPathContext xpathSupport = new XPathContext();
// because XPathContext is weak in a number of areas... perhaps
// XPathContext should be done away with.)
// Create the XPath object.
// String str = CachedXPathFuncHereAPI.getStrFromNode(xpathnode);
// only check if string points to different object (for performance)
if (str != xpathStr) {
if (str.indexOf("here()") > 0) {
_context.reset();
_dtmManager = _context.getDTMManager();
}
try {
xpath = createXPath(str, prefixResolver);
} catch (TransformerException ex) {
// Try to see if it is a problem with the classloader.
Throwable th = ex.getCause();
if (th instanceof ClassNotFoundException) {
if (th.getMessage().indexOf("FuncHere") > 0) {
throw new RuntimeException(I18n.translate("endorsed.jdk1.4.0") /*,*/ + ex);
}
}
throw ex;
}
xpathStr = str;
}
// Execute the XPath, and have it return the result
if (this._funcHereContext == null) {
this._funcHereContext = new FuncHereContext(xpathnode, this._dtmManager);
}
int ctxtNode = this._funcHereContext.getDTMHandleFromNode(contextNode);
return xpath.execute(this._funcHereContext, ctxtNode, prefixResolver);
}