[kepler-dev] [kepler-users] Recipe for using Ptolemy JAI actors?
Christopher Brooks
cxh at eecs.berkeley.edu
Mon Mar 15 17:28:19 PDT 2010
JAI is redistributable, see
https://jai.dev.java.net/
"The source code for the jai-core project is licensed under the Java Research License (JRL) for non-commercial use. The JRL allows users to download, build, and modify the source code in the jai-core
project for research use, subject to the terms of the license.
The source for the jai-core project is also licensed for commercial use under a new no-fee Java Distribution License (JDL). The JDL allows commercial use of Java Advanced Imaging with or without
modification, as long as compatibility with the entire API Specification is maintained. This includes passing the TCK tests for Java Advanced Imaging, and retaining the javax namespace as defined by
the JCP."
However, the JAI is distributed with platform dependent binaries, so the
user would probably have to do the install themselves. There is a 100%
Java distribution, but it is likely to be slow.
Having a separate package for JAI make sense, but I'd rather see some
of the build system bugs and rfes addressed, such as the test suite etc.
See
http://bugzilla.ecoinformatics.org/buglist.cgi?query_format=advanced&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&component=build%20system&product=Kepler
Also, ptolemy/module-info/revision.txt is not being automatically updated.
Should it be?
_Christopher
On 3/15/10 5:06 PM, Matt Jones wrote:
> I think a module for JAI is a good idea. Typically, the reason that
> things are commented out in the Kepler build is when the required jar
> libraries can not be redistributed. I think that was the case with JAI,
> which is why it is conditionally compiled in ptolemy, and not compiled
> in Kepler. A quick read of the license now indicates that it may be
> possible to redistribute the binary, but may require indemnification of
> Sun to do so. I think if someone looks into the license and decides it
> can be redistributed freely then a module for JAI makes sense.
>
> Matt
>
> On Mon, Mar 15, 2010 at 2:52 PM, David Welker <david.v.welker at gmail.com
> <mailto:david.v.welker at gmail.com>> wrote:
>
> Wouldn't it make most sense for us, as the Kepler project, to make a
> JAI module in Kepler? After all, it seems unreasonable to me to have
> everyday developer/users have to do so much hacking with how we use
> Ptolemy in the build to get this to work. Also, such hacking will
> not be easily shared. It seems to me that JAI is important enough to
> enough scientists as to be worth making into a module that can
> easily shared.
>
> More generally, I would argue that as we get requests like this (for
> functionality in Ptolemy but not normally accessible in Kepler) that
> we make new modules. What are we going to do when we get the next
> JAI request? Tell them to go through all these steps again? We could
> give them much simpler instructions: just use the new JAI module.
>
> Does anyone have any thoughts? Is this a good use case for a new module?
>
>
> Sent from my iPhone
>
>
> On Mar 15, 2010, at 12:23 PM, Christopher Brooks
> <cxh at eecs.berkeley.edu <mailto:cxh at eecs.berkeley.edu>> wrote:
>
> Hi Tom,
> The JAI actors require that JAI be installed.
>
> http://ptolemy.eecs.berkeley.edu/ptolemyII/ptIIlatest/ptII/doc/install_index.htm
> says
> --start--
> JAI
> The Java Advanced Imaging (JAI) actors require that JAI, which
> can be
> downloaded from
> http://java.sun.com/javase/technologies/desktop/techoverview.jsp#jai
>
> You need not install JAI if you are not planning on using the
> JAI Actors.
>
> Note that you probably want to install the JAI "JDK Install".
>
> We verified that jai-1_1_3-lib-windows-i586-jdk.exe works with
> these actors.
>
> Note that under Web Start, we had to install the JAI jar files
> by hand in
> c:/Program Files/Java/jre1.6.0_04/lib/ext by copying
> jai_codec.jar, jai_core.jar, and mlibwrapper_jai.jar from the
> c:/Program Files/Java/jdk1.6.0_04/lib/ext Web Start users might
> want to try
> the "Windows Auto-installation for Java Plug-in"
> --end--
>
> For Mac OS 10.5, see
> http://chess.eecs.berkeley.edu/ptexternal/wiki/Main/Mac#Ptolemy
> --start--
> Java Advance Imaging - No need to install, already in
> System|Library|Java|Extensions (jai_codec.jar, jai_core.jar) -
> Note that JAI is not available for the Mac from Sun.
> --end--
>
> The Ptolemy II Windows installer includes a JRE that includes
> the Windows JAI
> jar files.
>
> The JAI actors have not had much work on them lately, but they
> seem to
> be standing the test of time.
>
> We are also in the process of developing actors that use OpenGL
> and OpenCV,
> but this work is very much a work in progress.
>
> _Christopher
>
>
> On 3/15/10 10:19 AM, Sean Riddle wrote:
>
> To try to build the Ptolemy JAI actors, just remove the line
> 'ptolemy/actor/lib/jai/**' in
> build-area/settings/ptolemy-excludes. You
> might need to remove other directory entries if the JAI
> actors depend on
> other code. Keep in mind that the reason the JAI actors were
> exempted
> from compilation in the first place could be because they
> are a pain to
> compile.
>
> - Sean
>
> On Mar 15, 2010, at 9:50 AM, Thomas M. Parris wrote:
>
> All,
>
> We would like to make use of the Ptolemy JAI actors. But
> they do not
> appear
> to be built as part of the Ptolemy core. We found some
> dialog about this
> dating from 2006, but the details have likely changed
> sibstantially since
> then.
>
> Can anyone provide a recipe for building the Ptolemy JAI
> actors so
> they are
> available for use in Kepler (we're on the trunk).
>
> Many thanks,
> Tom
>
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>
> --
> Christopher Brooks, PMP University of
> California
> CHESS Executive Director US Mail: 337 Cory Hall
> Programmer/Analyst CHESS/Ptolemy/Trust Berkeley, CA
> 94720-1774
> ph: 510.643.9841 fax:510.642.2718 (Office: 545Q Cory)
> home: (F-Tu) 707.665.0131 cell: 707.332.0670
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--
Christopher Brooks, PMP University of California
CHESS Executive Director US Mail: 337 Cory Hall
Programmer/Analyst CHESS/Ptolemy/Trust Berkeley, CA 94720-1774
ph: 510.643.9841 fax:510.642.2718 (Office: 545Q Cory)
home: (F-Tu) 707.665.0131 cell: 707.332.0670
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