/**
* Open and parse the specified file expressed as a file: URL..
*
* @param url the URL of the file to open, expressed as a URL with a scheme of "file".
* @param linkBase the original address of the document if the file is a retrieved and cached
* file.
* @return A {@code ColladaRoot} representing the file's COLLADA contents.
* @throws IOException if an I/O error occurs during opening and parsing.
* @throws XMLStreamException if a server parsing error is encountered.
*/
protected ColladaRoot parseCachedColladaFile(URL url, String linkBase)
throws IOException, XMLStreamException {
ColladaDoc colladaDoc;
InputStream refStream = url.openStream();
colladaDoc = new ColladaInputStream(refStream, WWIO.makeURI(linkBase));
try {
ColladaRoot refRoot = new ColladaRoot(colladaDoc);
refRoot.parse(); // also closes the URL's stream
return refRoot;
} catch (XMLStreamException e) {
refStream.close(); // parsing failed, so explicitly close the stream
throw e;
}
}
