Add a service layer for ConfigAdmin
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Key: KARAF-888
URL: https://issues.apache.org/jira/browse/KARAF-888
Project: Karaf
Issue Type: Improvement
Components: karaf-config
Reporter: Jean-Baptiste Onofré
Fix For: 3.0.0
Up to now, Karaf uses Felix FileInstall to poll files in the etc folder and
load the properties containing in the files (the files respect the pid.cfg
format) in the ConfigAdmin service.
On the other hand, Karaf manipulate ConfigAdmin via the config:* commands and
is able to flush back the properties in the files in this commands.
I propose two improvements around ConfigAdmin:
- we could create a Karaf Config Service on top of ConfigAdmin to be able to
choose and change the storage backend of configuration. For instance,
replace/concats the etc folder with a JDBC or LDAP backend. We could implement
something similar to JAAS with a kind of ConfigModule.
- the config:* commands shouldn't be responsible to writing the files. The
config:* commands could use the Karaf Config Service. The Karaf Config Service
will be responsible to updating the ConfigAdmin service, and flush the changes
to the storage backend.
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