/**
* Uses a Vector of TransformerHandlers to pipe XML input document through a series of 1 or more
* transformations. Called by {@link #pipeDocument}.
*
* @param vTHandler Vector of Transformation Handlers (1 per stylesheet).
* @param source absolute URI to XML input
* @param target absolute path to transformation output.
*/
public void usePipe(Vector vTHandler, String source, String target)
throws TransformerException, TransformerConfigurationException, FileNotFoundException,
IOException, SAXException, SAXNotRecognizedException {
XMLReader reader = XMLReaderFactory.createXMLReader();
TransformerHandler tHFirst = (TransformerHandler) vTHandler.firstElement();
reader.setContentHandler(tHFirst);
reader.setProperty("http://xml.org/sax/properties/lexical-handler", tHFirst);
for (int i = 1; i < vTHandler.size(); i++) {
TransformerHandler tHFrom = (TransformerHandler) vTHandler.elementAt(i - 1);
TransformerHandler tHTo = (TransformerHandler) vTHandler.elementAt(i);
tHFrom.setResult(new SAXResult(tHTo));
}
TransformerHandler tHLast = (TransformerHandler) vTHandler.lastElement();
Transformer trans = tHLast.getTransformer();
Properties outputProps = trans.getOutputProperties();
Serializer serializer = SerializerFactory.getSerializer(outputProps);
FileOutputStream out = new FileOutputStream(target);
try {
serializer.setOutputStream(out);
tHLast.setResult(new SAXResult(serializer.asContentHandler()));
reader.parse(source);
} finally {
// Always clean up the FileOutputStream,
// even if an exception was thrown in the try block
if (out != null) out.close();
}
}
public Properties getOutputProperties() {
Properties properties = transformer.getOutputProperties();
if (properties.get(privateProperty) == null) {
// Optimize case where we don't need to map
return properties;
} else {
// Switch property
properties.put(publicProperty, properties.get(privateProperty));
properties.remove(privateProperty);
return properties;
}
}
