Jason Sankey just posted a list of OSGi tutorials: http://www.alittlemadness.com/?p=80
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Feb
6
I checked out the OSGi presentation from the Parleys site http://www.bejug.org/confluenceBeJUG/display/PARLEYS/Spring+OSGi. Wow. I haven’t really spent any time thinking about this stuff in the past, but it seems that yet again the JSR process is trying to formalize something that doesn’t need it. OSGi seems to be a much lighter, more powerful model whereby you can switch bundles, the JSR-277 module equivalents, at runtime via an OSGi console or JMX. Check out http://www.osgi.org and http://en.wikipedia.org/wiki/OSGi for good synopses of the technology and what it can offer.
The huge advantage here is that the technology is stable, mature and available to use right now (there are a number of open-source implementations) rather than needing to wait for something that won’t be around until Java 7. All that and no new language structures.
There’s an interesting post by Peter Kriens from OSGi about how JSR-277 stacks up at
http://www.osgi.org/blog/2006/10/jsr-277-review.html
"The ambition level of JSR 277 is significantly lower than where the OSGi specifications are today, even way lower than we set out in 1998. In a way, for me the JSR 277 proposal feels rather toyish. "
It’s time to kick the tires on this one, and see where it might be useful.
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