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[aprssig] APRS message-handling algorithms / libraries

Gregg Wonderly gregg at wonderly.org
Tue Apr 10 23:45:28 UTC 2012


On Apr 10, 2012, at 1:02 AM, Georg Lukas wrote:

> Hi Gregg,
> 
> * Gregg Wonderly <gregg at wonderly.org> [2012-04-09 05:58]:
>> Back in 2001-2003, I worked on a Java APRS application framework
>> called JeAPRS.   The project is out on http://jeaprs.dev.java.net.
> 
> I can not speak for John here, but when I started APRSdroid, I was not
> able to find anything even remotely usable from a Java app, so I started
> with my own parser, which was later on replaced by java-aprs-fap [1],
> the Java port of the Perl parser. javAPRSlib is based on the
> java-aprs-fap code, and both John and I try hard to make it usable as a
> library

Did you not find Jeaprs?  It is slightly visible on the second page of Google search results for me.  I brought it up on this list several times over the past decade, trying to get people interested.  But, I could find no traction, getting anyone interested in helping with it, nor using it.

> It does not include message segmentation and timeout handling. The
> former should be possible to add without too much work if the need
> arises, and the latter should be implemented at application level anyway
> (timeout handling always depends on what kind of I/O interface you use).
> 
> As for non-Java solutions, there is of course the excellent Perl
> module maintained by Hessu [2], which is in use on aprs.fi.

Perl is fine for a server platform.  It's not really a choice for a client application unless you really admire perl.

Gregg

> 73,
> 
> Georg DO1GL
> 
> [1] http://repo.ham.fi/svn/java-aprs-fap
> [2] http://search.cpan.org/dist/Ham-APRS-FAP/
> -- 
> APRSdroid - Open Source APRS Client for Android ++ http://aprsdroid.org/m
>     ++ https://market.android.com/details?id=org.aprsdroid.app ++
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