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https://issues.apache.org/jira/browse/CONFIGURATION-312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Bourg updated CONFIGURATION-312:
-----------------------------------------
Component/s: Format
> WindowsConfiguration
> --------------------
>
> Key: CONFIGURATION-312
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-312
> Project: Commons Configuration
> Issue Type: New Feature
> Components: Format
> Reporter: Emmanuel Bourg
> Fix For: 2.x
>
>
> This is a RFE to implement a configuration backed by the windows registry.
> It can be implemented using an external library such as the ICE JNI Registry :
> http://www.trustice.com/java/jnireg
> It could also be implemented by hacking around the private WindowsPreferences
> class from the JDK (with no guarantee it will work on later versions, on
> other VMs, or on environments with a SecurityManager). Here is an example
> using this approach and displaying the user's data directory :
> {code:java}
> Preferences winPrefs = Preferences.userRoot();
> Class cls = winPrefs.getClass();
> Method openKey = cls.getDeclaredMethod("openKey", byte[].class, int.class,
> int.class);
> openKey.setAccessible(true);
> Method closeKey = cls.getDeclaredMethod("closeKey", int.class);
> closeKey.setAccessible(true);
> Method winRegQueryValue = cls.getDeclaredMethod("WindowsRegQueryValueEx",
> int.class, byte[].class);
> winRegQueryValue.setAccessible(true);
> Method winRegEnumValue = cls.getDeclaredMethod("WindowsRegEnumValue1",
> int.class, int.class, int.class);
> winRegEnumValue.setAccessible(true);
> Method winRegQueryInfo = cls.getDeclaredMethod("WindowsRegQueryInfoKey1",
> int.class);
> winRegQueryInfo.setAccessible(true);
> Integer keyHandle = (Integer) openKey.invoke(winPrefs, toByteArray("Volatile
> Environment"), KEY_READ, KEY_READ);
> byte[] array = (byte[]) winRegQueryValue.invoke(winPrefs, keyHandle,
> toByteArray("APPDATA"));
> closeKey.invoke(winPrefs, keyHandle);
> System.out.println(new String(array));
> {code}
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