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From "jijun wang (JIRA)" <>
Subject [jira] Updated: (ADFFACES-441) Adding localization to logging message and exception
Date Mon, 07 May 2007 16:52:15 GMT


jijun wang updated ADFFACES-441:

    Attachment: trinidadexc1a.patch

For review only. Change on exception part. Check,
New files not included.

> Adding localization to logging message and exception
> ----------------------------------------------------
>                 Key: ADFFACES-441
>                 URL:
>             Project: MyFaces ADF-Faces
>          Issue Type: Improvement
>          Components: Components
>    Affects Versions: 1.0.1-incubating-core-SNAPSHOT
>         Environment: Generic
>            Reporter: jijun wang
>         Assigned To: Jeanne Waldman
>             Fix For: 1.0.1-incubating-core-SNAPSHOT
>         Attachments:,,,,,
> Proposal: 
> 1) use resource bundle for logging message in java files above fine level so those message
could be localized; 
> 2) localize part/all exception in java files with resource bundle
> Benefit:
> More information in local  language accessible for people in tech support, operation,
deployment, field application etc whose software uses trinidad code
> Details:
> Trinidad-api and trinidad-impl will have their own LoggerBundle.xrts where message to
be localized is defined. A LoggerUtils class will be added as a decorator in each project.
LoggerUtils.createTrinidadLogger will return a TrinidadLogger instance with appropriate resource
bundle attached.  Message localization in logging is thus available from java logging by inheritance.
Localization in exception message is achieved by passing localized message to exception. For
both logging and exception, server locale will be used. This might create inconsistency for
exception when client locale and server locale are different.  Since an exception not captured
would show both on server logger and client browser, using server locale is more practical.
> Open Issues:
> 1) Current API in TrinidadLogger is not enough to handle logging that contains message,
message parameters and throwable. e.g
>  _LOG.warning("Unable to instantiate converterClass:" + converterName, e);  would become:
> _LOG.warning("UNABLE_INSTANTIATE_CONVERTERCLASS", converterName, e);  or 
> But we neither warning() nor logp() has API that would take (...String message, Object
parm, throwable e) as signature. Should we add API or use 2 logging statements?
> _LOG.warning("Unable to instantiate converterClass:" + converterName;
> _LOG.warning(e);
> 2) Should LoggerUtils provide some methods like public static String getMessage(TrinidadLogger
logger, String key (, Object params([])?)?) to retrieve localized string from resource bundle(parameter
substitution could also be done in the method). The alternative is to use TrinidadLogger.getResourceBundle.getString(key)
to retrieve localized message(in this case no parameter substitution or we don't localize
exception message that carries parameters)

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