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Posted to user@karaf.apache.org by Guenther Schmidt <sc...@gmail.com> on 2017/12/13 00:20:19 UTC
Blueprint and managed Services
Hello,
how do I set the system.pid for a service that needs to receive its
configuration data from the OSGi container using Blueprint?
Guenther
Re: Blueprint and managed Services
Posted by Guenther Schmidt <sc...@gmail.com>.
Hello Guillaume,
thank you very much, your answers have been very helpful. With
update-strategy="component-manged" I do get what I want. I have not
tested if the configuration of the service implementation is set at
least before the service is used. The configuration has been "deposited"
before the bundle was installed.
Guenther
PS: I have tried to find the answers of my own, but as far as "official"
document goes it seems a bit sparse ...
Am 12/13/2017 um 4:44 PM schrieb Guillaume Nodet:
> Blueprint does not call setters while the beans are created, so your
> code does not need to care about changes.
> What happens is that if the configuration changes, the whole blueprint
> application will be refreshed.
>
> 2017-12-13 22:45 GMT+01:00 Guenther Schmidt <schmig68@gmail.com
> <ma...@gmail.com>>:
>
> Hello Guillaume,
>
> thank you very much.
>
> I had hoped for an example where a change of several values is
> transmitted in one go, much like ManagedService.
>
> Having configuration values change individually requires me to do
> quite a bit of reprogramming as right now my code expects all of
> these values to change atomically.
>
> Guenther
>
>
>
>
> --
> ------------------------
> Guillaume Nodet
>
Re: Blueprint and managed Services
Posted by Guillaume Nodet <gn...@apache.org>.
Blueprint does not call setters while the beans are created, so your code
does not need to care about changes.
What happens is that if the configuration changes, the whole blueprint
application will be refreshed.
2017-12-13 22:45 GMT+01:00 Guenther Schmidt <sc...@gmail.com>:
> Hello Guillaume,
>
> thank you very much.
>
> I had hoped for an example where a change of several values is transmitted
> in one go, much like ManagedService.
>
> Having configuration values change individually requires me to do quite a
> bit of reprogramming as right now my code expects all of these values to
> change atomically.
>
> Guenther
>
--
------------------------
Guillaume Nodet
Re: Blueprint and managed Services
Posted by Guillaume Nodet <gn...@apache.org>.
Here's a typical example of using configuration in blueprint:
https://github.com/apache/karaf/blob/karaf-2.x/shell/ssh/src/main/resources/OSGI-INF/blueprint/shell-ssh.xml
The pid of the configuration is defined using the persistent-id attribute:
https://github.com/apache/karaf/blob/karaf-2.x/shell/ssh/src/main/resources/OSGI-INF/blueprint/shell-ssh.xml#L37
and properties are used inside values such as:
https://github.com/apache/karaf/blob/karaf-2.x/shell/ssh/src/main/resources/OSGI-INF/blueprint/shell-ssh.xml#L76
Cheers,
Guillaume Nodet
2017-12-13 1:20 GMT+01:00 Guenther Schmidt <sc...@gmail.com>:
> Hello,
>
> how do I set the system.pid for a service that needs to receive its
> configuration data from the OSGi container using Blueprint?
>
> Guenther
>
>
--
------------------------
Guillaume Nodet