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https://issues.apache.org/jira/browse/LOG4NET-30?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Bodewig updated LOG4NET-30:
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Fix Version/s: 1.2 Maintenance Release
> Add support for type aliases in config file
> -------------------------------------------
>
> Key: LOG4NET-30
> URL: https://issues.apache.org/jira/browse/LOG4NET-30
> Project: Log4net
> Issue Type: New Feature
> Reporter: Ron Grabowski
> Priority: Trivial
> Fix For: 1.2 Maintenance Release
>
>
> IBatisNet uses "type" attributes in their xml config files:
> type="Company.Project.Foo.Data.Entity.Product, Company.Project.Data"
> type="Company.Project.Foo.Data.Entity.Category, Company.Project.Data"
> type="Company.Project.Foo.Data.Entity.User, Company.Project.Data"
> to save the user from having to re-type long strings every time something
> references a Product, Category, etc. They define an <alias> node that
> contains <typeAlias> entries:
> <alias>
> <typeAlias alias="Product" type="Company.Project.Foo.Data.Entity.Product,
> Company.Project.Data" />
> <typeAlias alias="Category" type="Company.Project.Foo.Data.Entity.Product,
> Company.Project.Data" />
> <typeAlias alias="User" type="Company.Project.Foo.Data.Entity.Product,
> Company.Project.Data" />
> </alias>
> Wherever I have to specify a type, I may use one of the aliases I defined at
> the top of the file.
> It would be nice if log4net supported a similiar concept. It would also be
> nice if log4net shipped with some default aliases. I think normal casing
> would be ok:
> FileAppender -> log4net.Appender.FileAppender
> An example incorporating the above suggestions would be (this will probably
> wrap when it posts to the mailing list):
> <alias>
> <typeAlias alias="SessionContextPatternConverter"
> type="log4netAspExtensions.SessionContextPatternConverter,
> log4netAspExtensions" />
> <typeAlias alias="CacheContextPatternConverter"
> type="log4netAspExtensions.CacheContextPatternConverter,
> log4netAspExtensions" />
> <typeAlias alias="RequestContextPatternConverter"
> type="log4netAspExtensions.RequestContextPatternConverter,
> log4netAspExtensions" />
> <typeAlias alias="ApplicationContextPatternConverter"
> type="log4netAspExtensions.ApplicationContextPatternConverter,
> log4netAspExtensions" />
> </alias>
> <appender name="LoginFileAppender" type="FileAppender">
> <file value="c:/inetpub/wwwroot/Logs/Logins.txt" />
> <layout type="PatternLayout">
> <converter>
> <name value="asp-session" />
> <type value="SessionContextPatternConverter" />
> </converter>
> <conversionPattern value="%5p %d (%c:%L) - [%asp-session{UserId}] %m%n" />
> </layout>
> </appender>
> I haven't fully looked into the <convertor> node to see if it can support
> this style of attributes but an even shorted syntax might be:
> <appender name="LoginFileAppender" type="FileAppender">
> <file value="c:/inetpub/wwwroot/Logs/Logins.txt" />
> <layout type="PatternLayout">
> <converter name="asp-session" type="SessionContextPatternConverter" />
> <conversionPattern value="%5p %d (%c:%L) - [%asp-session{UserId}] %m%n" />
> </layout>
> </appender>
> It should be possible to overwrite the builtin aliases. Had I overridden
> FileAppender:
> <typeAlias alias="FileAppender"
> type="log4netAspExtensions.AspNetFileAppender, log4netAspExtensions" />
> I would be able to declare my appender with support for the ~ character:
> <appender name="LoginFileAppender" type="FileAppender">
> <file value="~/Logs/Login.txt" />
> <layout type="PatternLayout">
> <converter name="asp-session" type="SessionContextPatternConverter" />
> <conversionPattern value="%5p %d (%c:%L) - [%asp-session{UserId}] %m%n" />
> </layout>
> </appender>
> I think that the above changes would descrease the size of the config file
> and increase the files readability.
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