Kurvers, Eelco a écrit :
Hi all.
Currently I'm writing my first "real" application using the OSGi
framework as a basis. Now I've got a problem with/ question about the
connection between a service and its client. I haven't dealt with this
problem in the OSGi environment before.
I've got a "control" unit, controlling a GUI and managing the entire
application. I also have got a service delivering the needed
connectivity to the network (used for sending simple TCP/IP messages).
Now the control registers the "messaging service". It can send a
message, which works perfect. However the Messaging Service can also
receive messages. The problem is the service doesn't now the control,
does it? How do I trigger the control to act upon an incoming message?
Should I throw an event or something or is there an easier way?
OSGi R4 introduces a new service enabling asynchonous event
publish-subcribe between bundles.
http://bundles.osgi.org/javadoc/r4/org/osgi/service/event/package-summary.html
This slide sumarizes this service
p://www-adele.imag.fr/~donsez/cours/osgi.pdf#page=92
Karl Pauls did an implementation of it (the Felix one in fact).
I did some bridge of the EventAdmin with Ivy and Flash applications
http://www-adele.imag.fr/~donsez/dev/osgi/eaivybridge/readme.html
http://www-adele.imag.fr/~donsez/dev/osgi/eaflashbridge/readme.html
I hope this help you !
Best regards
Didier
The
control unit is not a service itself, so it can not be registered by the
service.
Anybody's got a suggestion to solving this problem? Thanks in advance.
Regards,
Eelco Kurvers
Trainee
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Didier DONSEZ
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