[jira] [Commented] (TRB-86) fulcrum-yaafi; strange configuration resolving

["Thomas Vandahl (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TRB-86?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13104713#comment-13104713 ] 

Thomas Vandahl commented on TRB-86:
-----------------------------------

Same application, somewhat different environment. The variables are being resolved using a DatabaseConfiguration object (o.a.commons.configuration). The Properties object barfs on setProperty(key, value) for values of null. I also suggest to change the signature of resolve() to 

Map<String, String> resolve(Map<String, String>).


> fulcrum-yaafi; strange configuration resolving
> ----------------------------------------------
>
>                 Key: TRB-86
>                 URL: https://issues.apache.org/jira/browse/TRB-86
>             Project: Turbine
>          Issue Type: Bug
>          Components: Fulcrum
>    Affects Versions: Core 2.3.3
>         Environment: fulcrum-yaafi-1.0.6
>            Reporter: T. Schmidt
>            Assignee: Siegfried Goeschl
>            Priority: Minor
>
> I've got a problem with two different (configuration) scenarios, which behave differently - but should (imho) not.
> The first one configures a 'default'-tag which holds a variable that should be resolved - the appropriate componentResolve.xml is below too. The 'default'-tag in the componentResolve.xml is empty. The second configuration has an empty 'default'-tag in the componentConfiguration.xml.
> In the first case the resolving is successfully made - the config-entry is an empty string. In the second case the config-entry is null. I would expect that an empty tag would result in an emtpy string - to be able to distinguish between emtpy tags and non-existing tags (there are other ways to do this - i know).
> If this null-behavior is expected than
> I would like to imitate the "empty tags are null" behavior in my CustomResolver. This isn't possible because of the ServiceContainerImpl class. Here the resolver items are hold in a Properties object, which cannot hold null-object as values. However the ConfigurationUtil class (which does the resolving) expects a Map, the using of a Map which accepts null as values (instead of Properties) would solve this problem.
> Configuration examples:
> componentConfiguration (1):
> ...
>    <SecurityService>
>       <permissions>
>          <default>${SecurityService.permissions.default}</default>
>       </permissions>
> ...
>    </SecurityService>
> ...
> componentConfiguration (2):
> ...
>    <SecurityService>
>       <permissions>
>          <default></default>
>       </permissions>
> ...
>    </SecurityService>
> ...
> componentResolve (1+2):
> ...
>    <SecurityService>
>       <permissions>
>          <default></default>
>       </permissions>
> ...
>    </SecurityService>
> ...

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