pnoltes opened a new issue, #585:
URL: https://github.com/apache/celix/issues/585
Adapt and implement the OSGi condition specification.
From the OSGi spec:
> In dynamic systems, such as OSGi, one of the more challenging problems can
be to define when a system or part of it is ready to do some work. The answer
can change depending on the individual perspective. The developer of a web
server might say, the system is ready when the server starts listening on port
80. An application developer however would define the system as ready, when the
database connection is up and all servlets are registered. Taking the
application developers view, the web server should start listening on port 80
when the application is ready and not beforehand.
This should include:
- A Celix C service struct to represent a Celix (OSGi) condition
- Framework services
- "true" condition (part of the spec)
- "framework.ready" condition to indicate a successfully and completely
started framework
- "framework.error" condition to indicate a partially started framework
where some bundles could not be installed and/or started.
Note that OSGi specification does not specify a "framework.ready" or
"framework.error" condition, but IMO this fits the OSGi conditions goal and
removes the need for a Celix framework listener.
I am not a fan of listener, because with listeners you can miss events.
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