/**
* Implements javax.xml.transform.sax.TransformerHandler.setResult() Enables the user of the
* TransformerHandler to set the to set the Result for the transformation.
*
* @param result A Result instance, should not be null
* @throws IllegalArgumentException if result is invalid for some reason
*/
public void setResult(Result result) throws IllegalArgumentException {
_result = result;
if (null == result) {
ErrorMsg err = new ErrorMsg(ErrorMsg.ER_RESULT_NULL);
throw new IllegalArgumentException(err.toString()); // "result should not be null");
}
if (_isIdentity) {
try {
// Connect this object with output system directly
SerializationHandler outputHandler = _transformer.getOutputHandler(result);
_transformer.transferOutputProperties(outputHandler);
_handler = outputHandler;
_lexHandler = outputHandler;
} catch (TransformerException e) {
_result = null;
}
} else if (_done) {
// Run the transformation now, if not already done
try {
_transformer.setDOM(_dom);
_transformer.transform(null, _result);
} catch (TransformerException e) {
// What the hell are we supposed to do with this???
throw new IllegalArgumentException(e.getMessage());
}
}
}
/**
* Convenience class to transform a node.
*
* @param xsl path name to the xsl file.
* @param xml dom source document.
* @param out output stream destination.
*/
public void transform(String xsl, Node xml, OutputStream out) throws Exception {
TransformerImpl transformer;
transformer = (TransformerImpl) newTemplates(xsl).newTransformer();
transformer.transform(xml, out);
}
/** Cosntructor - pass in reference to a TransformerImpl object */
public TransformerHandlerImpl(TransformerImpl transformer) {
// Save the reference to the transformer
_transformer = transformer;
if (transformer.isIdentity()) {
// Set initial handler to the empty handler
_handler = new DefaultHandler();
_isIdentity = true;
} else {
// Get a reference to the translet wrapped inside the transformer
_translet = _transformer.getTranslet();
}
}
/**
* Implements JAXP's Templates.newTransformer()
*
* @throws TransformerConfigurationException
*/
public synchronized Transformer newTransformer() throws TransformerConfigurationException {
TransformerImpl transformer;
transformer =
new TransformerImpl(getTransletInstance(), _outputProperties, _indentNumber, _tfactory);
if (_uriResolver != null) {
transformer.setURIResolver(_uriResolver);
}
if (_tfactory.getFeature(XMLConstants.FEATURE_SECURE_PROCESSING)) {
transformer.setSecureProcessing(true);
}
return transformer;
}
/**
* Implements org.xml.sax.ContentHandler.endDocument() Receive notification of the end of a
* document.
*/
public void endDocument() throws SAXException {
// Signal to the DOMBuilder that the document is complete
_handler.endDocument();
if (!_isIdentity) {
// Run the transformation now if we have a reference to a Result object
if (_result != null) {
try {
_transformer.setDOM(_dom);
_transformer.transform(null, _result);
} catch (TransformerException e) {
throw new SAXException(e);
}
}
// Signal that the internal DOM is built (see 'setResult()').
_done = true;
// Set this DOM as the transformer's DOM
_transformer.setDOM(_dom);
}
if (_isIdentity && _result instanceof DOMResult) {
((DOMResult) _result).setNode(_transformer.getTransletOutputHandlerFactory().getNode());
}
}
/**
* Implements org.xml.sax.ContentHandler.startDocument() Receive notification of the beginning of
* a document.
*/
public void startDocument() throws SAXException {
// Make sure setResult() was called before the first SAX event
if (_result == null) {
ErrorMsg err = new ErrorMsg(ErrorMsg.JAXP_SET_RESULT_ERR);
throw new SAXException(err.toString());
}
if (!_isIdentity) {
boolean hasIdCall = (_translet != null) ? _translet.hasIdCall() : false;
XSLTCDTMManager dtmManager = null;
// Create an internal DOM (not W3C) and get SAX2 input handler
try {
dtmManager =
(XSLTCDTMManager)
_transformer.getTransformerFactory().getDTMManagerClass().newInstance();
} catch (Exception e) {
throw new SAXException(e);
}
DTMWSFilter wsFilter;
if (_translet != null && _translet instanceof StripFilter) {
wsFilter = new DOMWSFilter(_translet);
} else {
wsFilter = null;
}
// Construct the DTM using the SAX events that come through
_dom = (SAXImpl) dtmManager.getDTM(null, false, wsFilter, true, false, hasIdCall);
_handler = _dom.getBuilder();
_lexHandler = (LexicalHandler) _handler;
_dtdHandler = (DTDHandler) _handler;
_declHandler = (DeclHandler) _handler;
// Set document URI
_dom.setDocumentURI(_systemId);
if (_locator != null) {
_handler.setDocumentLocator(_locator);
}
}
// Proxy call
_handler.startDocument();
}
/**
* Convenience class to transform a node.
*
* @param xsl DOM containing the parsed xsl.
* @param xml DOM document node.
* @param out output stream destination.
*/
public void transform(Document xsl, Node xml, OutputStream out) throws Exception {
TransformerImpl transformer = (TransformerImpl) newTransformer(xsl);
transformer.transform(xml, out);
}
