[brailleblaster] Re: jar Files
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: brailleblaster@xxxxxxxxxxxxx
- Date: Mon, 8 Nov 2010 05:06:46 -0600
Bert,
Thanks for the information and the links. I'm looking at odt2braille
right now and have examined the bin directory you mention. You seem to
have combined liblouis and liblouisxml into a single library.
The SWT jar does contain several C libraries.
I think we may be ready to make some real progress on the embosser
drivers right now. The editor is more important, of course, but it isn't
ready for detailed work yet. We work on whatever portion of a project is
ready at the moment.
I'm still wondering about proprietary information in drivers. It would
be nice to have a link to a Java code obfuscator. How does one optimize
a Java program? I thought they were more or less optimized already.
Thanks,
John
On Mon, Nov 08, 2010 at 11:24:39AM +0100, Bert Frees wrote:
> Hi.
>
> In the odt2braille extension for OpenOffice.org, liblouis is not
> included in a jar file. All the necessary tools and libraries are in a
> "bin" subdirectory in the odt2braille extension ("oxt" file, which is in
> fact a zip file). When OpenOffice.org needs liblouisxml, a call is made
> to a function in the odt2braille jar, and the location of the xml2brl
> tool (bin directory) is passed as an argument. odt2braille will then
> execute xml2brl, and xml2brl will load the dll's (on Windows) or dylib's
> (on Mac OS).
>
> On the subject of embosser drivers, I think it might be worth taking a
> look at the "pef2text" transformer in the DAISY Pipeline, which enabled
> you to convert a pef file to a text file and to emboss a pef on a select
> list of embosser types. In fact, odt2braille currently uses this module
> to handle embossing. I have made some modifications to the code and
> added support for some more embossers myself.
>
> Take a look at these links:
>
> *Documentation*:
> http://data.daisy.org/projects/pipeline/doc/transformers/org_pef_pef2text.html
> *Source code*:
> https://daisymfc.svn.sourceforge.net/svnroot/daisymfc/trunk/dmfc/transformers/org_pef_text/
> *odt2braille modifications*:
> https://odt2braille.svn.sourceforge.net/svnroot/odt2braille/DaisyPipeline/src/org_pef_text/
> *Use in odt2braille*:
> https://odt2braille.svn.sourceforge.net/svnroot/odt2braille/Odt2Braille/src/be/docarch/odt2braille/HandlePEF.java
>
> It would be very nice if BrailleBlaster and OpenOffice.org (and DAISY
> Pipeline) would all handle embossing the same way. So I would love to
> collaborate on this matter.
>
> Kind regards,
> Bert
>
>
> On 7/11/2010 16:57, Michael Whapples wrote:
> >If doing the creation by hand then you use the jar command in the JDK,
> >but tools like maven and ant have facilities to allow you to build a
> >jar file as part of the build process.
> >
> >How to include libraries in a jar file? You need the compiled library
> >already created (either created as an earlier step of the build
> >process or manually produced earlier) and you just copy the library
> >file (DLL, shared object file, etc) into the jar like any other
> >resource file. Again SWT and JNA's build systems may provide useful
> >examples.
> >
> >May be others don't include liblouis and liblouisxml in jar files
> >because they may not want the effort of writing the code to manage
> >extracting the library when required. As a question, do we need
> >liblouis and liblouisutdml included in jar files? I had imagined we
> >were going to go down the route of having a directory structure which
> >is packaged into a zip file, requiring the user to download the zip
> >file, unzip it somewhere and run it from that location, rather than
> >trying to bundle everything into a single jar.
> >
> >Why had I gone with the zip file idea? one advantage is that users may
> >wish to modify things (eg. as I said may be add another driver not
> >included in BrailleBlaster). Thinking further that would be possible
> >with a single jar file, you just have an external settings/plugin
> >directory brailleblaster uses.
> >
> >Michael Whapples
> >On 07/11/10 06:48, John J. Boyer wrote:
> >>How does one go about creating a jar file? In particular, how would one
> >>create a jar rfile that also contains C or C++ libraries? For example,
> >>how woulod I include liblouis and liblouisutdml in a jar file with the
> >>bindings?
> >>
> >>The ODT2braille plugin for Open Office has liblouis and liblouisxml dlls
> >>in a bin subdirectory. How do they load these libraries?
> >>
> >>We also have the C library itex2MMl and the C++ library hunspell. It
> >>would be nice if we could encapsulate them in a jar file with their
> >>bindings.
> >>
> >>Thanks,
> >>John
> >>
> >
> >
>
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
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