[jira] [Created] (CONFIGURATION-636) Allow a user-defined order in the PropertiesConfigurationLayout.save method.

["Tim Lark (JIRA)" <ji...@apache.org>]

Tim Lark created CONFIGURATION-636:
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             Summary: Allow a user-defined order in the PropertiesConfigurationLayout.save method.
                 Key: CONFIGURATION-636
                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-636
             Project: Commons Configuration
          Issue Type: Improvement
          Components: Format
    Affects Versions: 2.0
            Reporter: Tim Lark


For .properties file manipulation, I have a use case that requires something like "addKeyAfterKey(String keyToAdd, String afterKey)".  This allows a property to be written after some other property when saving.

I have extended PropertiesConfigurationLayout to accomplish this new behavior.  Unfortunately, the save method iterates over a private member (layoutData), so I have no control over the final file order.

An easy fix for my use case would be to change line 564 to use the public getKeys() method instead of layoutData.keySet():
{noformat}
FROM: for (String key : layoutData.keySet())
TO:   for (String key : getKeys())
{noformat}

Then I could override getKeys() to return the required order for saving.



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