[kepler-dev] problems and fixes in cvs head of ptolemy

Chad Berkley berkley at nceas.ucsb.edu
Thu Jan 8 14:29:07 PST 2004

yeah, I'm not sure why this doesn't work.  I thought $CLASSPATH should 
work as well.  Here's the error:

[java] java.lang.Exception: Failed to read configuration 
      [java]     at 
      [java] Caused by: com.microstar.xml.XmlException: XML element 
"input" triggers exception. in 
at line 58 and column 67
      [java] Caused by:
      [java]  ptolemy.kernel.util.IllegalActionException: Error 
evaluating expression: $CLASSPATH/doc/img/ptIIplanetIcon.gif
      [java]   in .configuration.icon editor library.image.source
      [java] Because:
      [java] The ID CLASSPATH is undefined.
      [java]     at 

christopher, do you see anything that looks suspicious in that?


Christopher Hylands Brooks wrote:
> Strange, $CLASSPATH should work.  $CLASSPATH is handled specially,
> see
> ptII/ptolemy/data/expr/FileParameter.java
>>If a file name begins with the reference "$CLASSPATH", then when
>>the file is opened for reading, the openForReading() method
>>will search for the file relative to the classpath (using the
>>getResource() method of the current class loader).  This will only
>>work for a file that exists, and thus the openForWriting() method
>>will not understand the "$CLASSPATH" string; this makes sense
>>since the classpath typically has several directories, and it
>>would not be obvious where to create the file.  The asURL()
>>method also recognizes the "$CLASSPATH" string, but not the asFile()
>>method (which is typically used when accessing a file for writing).
>>NOTE: If the container of this parameter also contains a variable
>>named CLASSPATH, then the value of that variable is used instead
>>of the Java classpath.
> I'm not sure why it would not be working unless there was a partial
> merge where the version of FileParameter that predates the CLASSPATH
> hacks.
> -Christopher
> Christopher Hylands Brooks cxh at eecs.berkeley.edu  University of California
> Programmer/Analyst Chess/Ptolemy/GSRC         US Mail: 558 Cory Hall #1770
> ph: 510.643.9841 fax:510.642.2739	      Berkeley, CA 94720-1770
> home: (F-Tu) 707.665.0131 (W-F) 510.655.5480  (office: 400A Cory)
> --------
>     ok, I got the head of the ptolemy cvs to work with kepler. This is what 
>     I did:
>     -add TextAttribute.java to the makefile in 
>     ptII/ptolemy/vergil/kernel/attributes
>     -remake that directory
>     -change line 87 of 
>     ptII/ptolemy/vergil/kernel/attributes/ImageAttribute.java to be 
>     source.setExpression("$PTII/doc/img/ptIIplanetIcon.gif");
>     (instead of "$CLASSPATH/doc/....")
>     -remake that directory.
>     -change line 87 of 
>     ptII/ptolemy/vergil/kernel/attributes/demo/AnimateVergil/AnimateVergil.xml 
>     to <property name="source" 
>     class="ptolemy.kernel.attributes.FileAttribute" 
>     value="$PTII/doc/img/ptIIplanetIcon.gif">
>     (again instead of "$CLASSPATH/doc....")
>     hope that works for you.  if it does, maybe forward this info onto the 
>     ptolemy folks.  It looks like someone just inadvertantly stuck in 
>     $CLASSPATH when it should have been $PTII.
>     chad
>     -- 
>     -----------------------
>     Chad Berkley
>     National Center for
>     Ecological Analysis
>     and Synthesis (NCEAS)
>     berkley at nceas.ucsb.edu
>     -----------------------
>     _______________________________________________
>     kepler-dev mailing list
>     kepler-dev at ecoinformatics.org
>     http://www.ecoinformatics.org/mailman/listinfo/kepler-dev
> --------

Chad Berkley
National Center for
Ecological Analysis
and Synthesis (NCEAS)
berkley at nceas.ucsb.edu

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