Hi Keith,
You should get an java.security.AccessControlException: access denied
from webstart.
To access the filesystem from an application started with webstart
requires special permission. This means you have to sign your
application and the user has to permit the execution.
see e.g.
http://java.sun.com/docs/books/tutorial/security1.2/toolsign/signer.html
Cheers,
Andreas
On 21 Jun 2005, at 20:17, Keith Turner wrote:
Hello-
I am new to the list. I enjoy working with the Biojava API, but a
problem has arisen for me, and I need some help with it. I am
developing an application to be used in the Java Webstart framework,
and this brings with it some interesting file permission issues.
Basically, you use the JNLP interface FileOpenService to open a file
from within the secure "sandbox" environment, and then you can get an
InputStream out of that.
So I want to take this InputStream (which presumably is from a Fasta
file), and read a DNA sequence from it. However, all the methods that
worked when I was running my software as a Java application no longer
work in the JNLP environment. In the past, I was doing:
InputStreamReader fr = new InputStreamReader(in);
BufferedReader br = new BufferedReader(fr);
SequenceIterator stream = SeqIOTools.readFastaDNA(br);
Sequence seq = stream.nextSequence();
But the program freezes on the SeqIOTools.readFastaDNA(br) call. No
exception is thrown back, it just does nothing. Does anyone have any
suggestions as to how I can solve or work around this problem? Thank
you very much
-Keith Turner
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Andreas Prlic Wellcome Trust Sanger Institute
Hinxton, Cambridge CB10 1SA, UK
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