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From "raghutpk (Reopened) (JIRA)" <>
Subject [jira] [Reopened] (CONFIGURATION-467) Unable to persist CombinedConfiguration changes to the Filesystem.
Date Fri, 21 Oct 2011 15:00:35 GMT


raghutpk reopened CONFIGURATION-467:

Thank you very much for the early response. I really apprecieate that. The temporarily proposed
solution doesn't seem to work on the scenario given. I added the autoSave="true" for all the
config sources in config.xml as specified, but
doesn't still persist to the Filesystem.
The above code will give me the updatedValue(but it is temporary as only the object in memory
is modified) but still I have no way to persist it back to the filesyatem. Anthing else could
be done to the CombinedConfig object so as to acheieve the objective.

I can attach the screenshots if necessary

> Unable to persist CombinedConfiguration changes to the Filesystem.
> ------------------------------------------------------------------
>                 Key: CONFIGURATION-467
>                 URL:
>             Project: Commons Configuration
>          Issue Type: Improvement
>          Components: File reloading
>    Affects Versions: 1.6
>         Environment: Linux java
>            Reporter: raghutpk
>   Original Estimate: 24h
>  Remaining Estimate: 24h
> I use a config.xml file to load multiple Configuration Sources 
> Ex: 
> {code:xml}
> <configuration>
>   <header/>
>   <override>
>     <properties fileName=""/>
>     <properties fileName=""/>
>     <xml fileName="gui.xml"/>
>   </override>
>   <additional/>
> </configuration>
> {code}
> I load the config.xml and subsequently all the properties in my app to a CombinedConfiguration
Object as follows :
> {code:java}
> DefaultConfigurationBuilder builder = new DefaultConfigurationBuilder();
> builder.setFile(new File("config.xml"));
> CombinedConfiguration combinedConfig = builder.getConfiguration(true);
> {code}
> Now I am trying to expose all the properties from all configuration sources using a mbean
and at runtime trying to update the Properties. I wouldn't know though, from which source
the properties came from as the CombinedConfiguration takes care of that abstraction, but
when I do the following it doesn't change the persistance store(in this case the files on
the Filesystem).
> /*combinedConfig.setProperty(Key, updatedValue);*/
> There is no save method on the combinedConfiguration class so that the persistance store
gets updated.
> There is a save method in PropertiesConfiguration class or XMLConfiguration class, but
I wouldn't know at runtime or inside the code which file or configuration source the Key belongs
to, so even If I add a config-name to each source there is no use. 
> SO wouldn't the setProperty help me update the value of the Configuration and persist
it back to the original file. I don't know it is a bug or a feature it doesn't support or
there is a workaround in such scenarios. 
> Please advice.

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