[kepler-dev] file references inside jar files

[Dan Higgins]

Hi Edward

I was trying to get a FileReader actor to find a file that exists only 
in a jar file. The workflow worked fine when read from the file system 
if the datafile is in the same directory as the workflow and there is 
only the file name (no path needed). But if both are in a jar, the 
FileReader cannot find the data file without the jar url syntax. Your 
example below is java code (I believe) and it doesn't seem possible to 
just put it into the fileOrUrl parameter of the FileReader. Or am I 
missing something?

Dan

Edward A Lee wrote:

>
> I'm confused about why you would need to do this...
> Given a file name relative to a classpath, the following pattern
> will get it whether it's in a jar file or not:
>
> target.getClass().getClassLoader().getResource(sourceFileName);
>
>
> Edward
>
>
> At 09:46 PM 8/11/2004 -0700, Dan Higgins wrote:
>
>> Hi All,
>>    One problem we have been having in the Java web start 
>> implementation is how to reference data files that are only strored 
>> inside jar files. In particular, when the BiodivFileExample is called 
>> from the index page, it is loaded from a jar and the file it reads 
>> cannot be located. It looks like a fix that avoid absolute path 
>> problems is to use a jar url. For example, the data file that is in 
>> the kepler-configs.jar file can be referenced as:
>>
>> jar:file:/ptII4.0.1/lib/kepler-configs.jar!/ptolemy/configs/kepler/workflows/eco/speciesCount.dat 
>>
>>
>> A little long, but it seems to work!
>>
>> Dan
>> _______________________________________________
>> kepler-dev mailing list
>> kepler-dev at ecoinformatics.org
>> http://www.ecoinformatics.org/mailman/listinfo/kepler-dev
>
>
> ------------
> Edward A. Lee, Professor
> 518 Cory Hall, UC Berkeley, Berkeley, CA 94720
> phone: 510-642-0455, fax: 510-642-2739
> eal at eecs.Berkeley.EDU, http://ptolemy.eecs.berkeley.edu/~eal



-- 
*******************************************************************
Dan Higgins                                  higgins at nceas.ucsb.edu
http://www.nceas.ucsb.edu/    Ph: 805-892-2531
National Center for Ecological Analysis and Synthesis (NCEAS) 
735 State Street - Room 205
Santa Barbara, CA 93195
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