Provide better support for filenames with spaces in resource URL
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Key: UIMA-132
URL: http://issues.apache.org/jira/browse/UIMA-132
Project: UIMA
Issue Type: Improvement
Components: Core Java Framework
Reporter: Adam Lally
Assigned To: Adam Lally
Priority: Minor
Fix For: 2.1
The UimaContext.getResourceURL() method is difficult to use correctly. It is
tempting for users to write code such as:
URL url = getContext().getResourceURL(key);
FileReader fr = new FileReader(url.getPath());
which is not safe since the URL can contain spaces encoded as %20, and the
url.getPath() does not automatically decode them.
We should add the alternative methods and appropriate JavaDoc comments guiding
the user toward the appropriate method:
URI getResourceURI() -- this works better because URI.getPath() *does* do
decoding.
String getResourceFilePath() -- if the URL is a "file:" URL, return its decoded
path, otherwise throw an exception (e.g., for an "http" URL)
Additionally, it would be nice if we supported filenames (without the file:
prefix) in the <fileUrl> descriptor element, for example:
<fileUrl>c:/program files/myproj/myfile.txt</fileUrl>
Currently this gives a MalformedUrlException, but it would be helpful for the
framework to detect that exception and try appending "file:/" to see if that
makes a valid URL.
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