SAX parser does not resolve filename
- by phantom-99w
Another day, another strange error with SAX, Java, and friends.
I need to iterate over a list of File objects and pass them to a SAX parser. However, the parser fails because of an IOException. However, the various File object methods confirm that the file does indeed exist.
The output which I get:
11:53:57.838 [MainThread] DEBUG DefaultReactionFinder - C:\project\trunk\application\config\reactions\TestReactions.xml
11:53:57.841 [MainThread] ERROR DefaultReactionFinder - C:\project\trunk\application\config\reactions\null (The system cannot find the file specified)
So the problem is obviously that null in the second line. I've tried nearly all variations of passing the file as a parameter to the parser, including as a String (both from getAbsolutePath() and entered by hand), as a URI and, even more weirdly, as a FileInputStream (for this I get the same error, except that the entire relative path gets reported as null, so C:\project\trunk\null).
All that I can think of is that the SAXParserFactory is incorrectly configured. I have no idea what is wrong, though.
Here is the code concerned:
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(true);
try {
parser = factory.newSAXParser();
}
catch (ParserConfigurationException e) {
throw new InstantiationException("Error configuring an XML parser. Given error message: \"" + e.getMessage() + "\".");
}
catch (SAXException e) {
throw new InstantiationException("Error creating a SAX parser. Given error message: \"" + e.getMessage() + "\".");
}
...
for (File f : fileLister.getFileList()) {
logger.debug(f.getAbsolutePath());
try {
parser.parse(f, new ReactionHandler(input));
//FileInputStream fs = new FileInputStream(f);
//parser.parse(fs, new ReactionHandler(input));
//fs.close();
}
catch (IOException e) {
logger.error(e.getMessage());
throw new ReactionNotFoundException("An error occurred processing file \"" + f + "\".");
}
...
}
I have made no special provisions to provide a custom SAX parser implementation: I use the system default. Any help would be greatly appreciated!
