Oliver Heger created CONFIGURATION-553:
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             Summary: Support custom search strategies for configuration files
                 Key: CONFIGURATION-553
                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-553
             Project: Commons Configuration
          Issue Type: Improvement
    Affects Versions: 1.9
            Reporter: Oliver Heger
             Fix For: 2.0


Via the {{FileSystem}} class it is already possible to influence locating and 
loading of configuration files. However, the API is quite complex, and it is 
not obvious which methods to override.

It would be easier to have a specialized interface for a locator strategy. This 
would make the implementation of custom search strategies straight-forward. A 
default implementation of this interface can be provided which implements the 
currently used search algorithm (which is currently hard-coded in 
{{ConfigurationUtils}}).

In general, there is room for improvements in the file system implementations. 
For instance, functionality seems to be partly implemented in 
{{ConfigurationUtils}} and partly in {{DefaultFileSystem}}. I would like to 
remove the code related to the localization of configuration files from 
{{ConfigurationUtils}} and create a specialized utility class in the {{io}} 
package.

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