Hi, I have written a couple of small OSGi apps where if a single top-level DS component, let's call it T, cannot start then the application should shut down immediately. One example are HTTP services where the HTTP server port cannot be bound to.
The causes of failures I have seen are: - T activation fails - the bundle providing T fails to resolve - a dependency of T fails activation - a dependency of T cannot be provided because the bundle providing it failed to staret I can think of several ways of approaching the problem, but none of them perfect: - using the Felix Health Checks[1], that seems wrong since it's a polling-based approach and we very likely know when a dependency fails and stop immediately - using the SCR introspection API [2], which is again based on polling - waiting for the framework to start and then looking up the service; but we don't know when the SCR has 'settled' Are there any patterns or libraries that I can use to approach this problem? Thanks, Robert [1]: https://felix.apache.org/documentation/subprojects/apache-felix-healthchecks.html [2]: https://docs.osgi.org/specification/osgi.cmpn/7.0.0/service.component.html#service.component-introspection --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
