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|From:||Jörg Schaible (Joer...@Elsag-Solutions.com)|
|Date:||Mar 9, 2006 11:29:30 pm|
Simon Kitching wrote on Thursday, March 09, 2006 9:37 PM:
On Thu, 2006-03-09 at 09:04 -0800, Craig McClanahan wrote:
On 3/9/06, Jörg Schaible <Joer...@elsag-solutions.com> wrote:
do we have something like the java.util.Service class introduced with JDK 1.6 withing Jakarta? This is basically a proper API to access the Service Provider mechanism described here:
The closest analog is probably the "Commons Discovery" package, which utilizes a variety of strategies to do service discovery (including, IIRC, the META-INF service lookup trick).
As it happens, I've just implemented Service functionality as part of a JCL 2.x experimental prototype (including unit tests). You're welcome to the code..
Regretfully I don't have a lot of confidence in the commons-discovery code. There are *so* many weird classpath-related situations that can occur inside containers that any code of more than trivial complexity is almost certain to be wrong in some circumstances. If you want Service support, I would recommend *just* implementing Service support rather than using commons-discovery.
Well, I've found now that discovery also implements this service:
I wonder anyway, why we don't try to consolidate discovery, if it makes all this
trouble (wondering why we have a 0.2 released project in proper) ...