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From "Felix Meschberger (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (FELIX-4238) Unnecessary re-initialization of PersistenceManagers in configadmin
Date Sat, 28 Sep 2013 15:28:04 GMT

     [ https://issues.apache.org/jira/browse/FELIX-4238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Felix Meschberger closed FELIX-4238.
------------------------------------


Close after release
                
> Unnecessary re-initialization of PersistenceManagers in configadmin
> -------------------------------------------------------------------
>
>                 Key: FELIX-4238
>                 URL: https://issues.apache.org/jira/browse/FELIX-4238
>             Project: Felix
>          Issue Type: Bug
>          Components: Configuration Admin
>    Affects Versions: configadmin-1.6.0
>         Environment: MacOSX 10.8.5, Java 1.6.0_51, org.eclipse.osgi 3.9.0
>            Reporter: Matthias
>            Assignee: Felix Meschberger
>            Priority: Minor
>              Labels: patch
>             Fix For: configadmin-1.8.0
>
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> Brief description: If the PersistenceManager is replaced during runtime (e.g. after registering,
unregistering and registering again), the ConfigurationManager always re-initializes its list
of PersistenceManagers. Thus, no caching is possible and configurations are loaded unnecessarily.
> Details: In the ConfigurationManager line 818 getTrackingCount() on the service tracker
for PersistenceManagers is called. If the number returned is different to the number of currently
known PersistenceManagers, then the list of PersistenceManagers is re-initialized. This works
fine as long as the list of PersistenceManager increases. But if a PersistenceManager is unregistered,
getTrackingCount() returns an increased number but the number of known PersistenceManagers
is decreased. Thus, the if-condition in line 819 is always true, which causes a re-initialization
of the list of known PersistenceManagers.

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