Posted by
dscho on
Feb 27, 2013; 8:29pm
URL: http://imagej.273.s1.nabble.com/Using-System-out-and-System-err-from-ImageJ-plugins-Java-tp5001799p5001902.html
Hi,
On Wed, 27 Feb 2013, Rasband, Wayne (NIH/NIMH) [E] wrote:
> On Feb 18, 2013, at 7:46 AM, Burger Wilhelm wrote:
>
> > I would like to share a piece of Java code for ImageJ that I wrote out
> > of need and perhaps others might find useful too:
> >
> > This small library facilitates the redirection of output to System.out
> > and System.err to the ImageJ Log-console. Typically in ImageJ output
> > sent to the standard system streams by calls such as
> > System.out.println(...) are suppressed. Redirecting the standard
> > output streams makes this output appear in ImageJ's log console,
> > analogous to using the IJ.log() method. This is particularly useful
> > for debugging imported code and for writing classes that are
> > independent of ImageJ.
> >
> > More details and the complete code with examples can be found here:
> >
http://staff.fh-hagenberg.at/burger/imagej/index.html> >
> > Comments and suggestions for improvements are welcome.
>
> This library is built into the ImageJ 1.47m daily build as the
> ij.io.LogStream class. You can redirect System.out and System.err
> messages to the Log window by enabling debug mode in Edit>Options>Misc.
I am glad you liked my approach, but I would have preferred it if my code
had just been reused... it was unnecessary to reinvent the wheel.
In any case, this interferes with Fiji's stdout/stderr handling. I am
fixing it as we speak.
Note also that the non-standard naming and location of the scripting
languages' .jar files are incompatible with Fiji's well-established
conventions. It would have been nice to avoid that.
Likewise, we, too, hardcoded languages into Fiji's scripting core. There
was a lesson in that, and we learnt from it: ImageJ2's scripting core is
completely independent of language-specific .jar files. I would strongly
suggest to learn that lesson from Fiji and not repeat the mistake in
ImageJ1.
Ciao,
Johannes
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