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https://issues.apache.org/jira/browse/FELIX-2510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Meschberger resolved FELIX-2510.
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Resolution: Fixed
In Rev. 981761: Ensure configuration is provided to components even if the
Configuration Admin service is registered after Declarative Services has
started. To this avail, a ServiceListener is registered, which handled the
Configuration Admin service registration by calling the configurationEvent
method for existing configurations.
> Configuration not provided to components if Configuration Admin is not active
> while setting up components
> ---------------------------------------------------------------------------------------------------------
>
> Key: FELIX-2510
> URL: https://issues.apache.org/jira/browse/FELIX-2510
> Project: Felix
> Issue Type: Bug
> Components: Declarative Services (SCR)
> Affects Versions: scr-1.2.0, scr-1.4.0
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Fix For: scr-1.4.2
>
>
> In earlier versions of the Declarative Services implementation, configuration
> for the components has been provided by the Declarative Services bundle
> registering ManagedService[Factory] services for each component registered.
> This ensured configuration to be provided by Configuration Admin service to
> the components once Configuration Admin service is active, configuration is
> present and a Component is here to take it.
> The drawback is, that this mechanism operates completely asynchronous
> (potentially causing components to be cycled during fire-up). Thus
> Configuration is now provided to the Components by the Declarative Services
> implementation by asking the Configuration Admin service for configuration on
> behalf of the components. Configuration updates are forwarded by the DS
> registering a ConfigurationListener.
> The problem now is, if Declarative Services is started (and has set up
> Components) before the Configuration Admin service is present, configuration
> will never be provided to components.
> To fix this, Declarative Services should register for service events to hear
> when Configuration Admin becomes present to be able to forward any
> configuration to the components.
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