[FELIX-6059] Improve usability for ConfigurationPlugins

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: configadmin-1.9.10
• Fix Version/s: configadmin-1.9.16
• Component/s: Configuration Admin
• Assignee: Carsten Ziegeler
• Reporter: Jürgen Albert
• Created: 18/Feb/19 15:31
• Updated: 18/Jun/19 15:45
• Resolved: 12/Jun/19 07:42

Description

As discussed at the OSGi F2F in Berlin. It is often the case, that a configuration needs a configuration plugin (like a plugin that sets database connection password from a secure store). At the moment, it is hard to guarantee that a plugin is known to the ConfigAdmin before a Configuration gets applied. Thus 2 things might be usefull:

1. ConfigurationAdmin should propagate what ConfigurationPlugins are known to him via a property on its service registration. Suggest would be to have a Marker property on a ConfigurationPlugin, Config Admin can pick up. This property could be "config.plugin.id". The ConfigAdmin could be "config.plugins".
2. Define a system property the ConifgAdmin reads, that name a comma separated list of config plugin ids, it waits for before it registers its service.