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https://issues.apache.org/jira/browse/LOG4J2-1045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Günter Albrecht updated LOG4J2-1045:
------------------------------------
    Description: 
We're working with WebSphere 8.0 and our operations team has demanded to 
externalize the {{log4j2.xml}} file per application.
So I defined a URL resource on WAS8 containing the path to the {{log4j2.xml}} 
somewhere on the filesystem.

At first glance the solution seems very simple:
I defined the property {{log4j.configurationFactory}} in the 
{{log4j2.component.properties}} file 
{{log4j.configurationFactory=de.company.MyConfigurationFactory}} available via 
classpath of the application.
In this class I specialized the method {{public Configuration 
getConfiguration(String name, URI configLocation, ClassLoader loader)}}. There 
I make a lookup to the URL resource.

But it does'nt function as of a missing implementation in the class 
{{ConfigurationFactory$Factory}} and the method {{public Configuration 
getConfiguration(final String name, final URI configLocation)}}. When one 
enters the method the variable {{configLocation}} is null. Then the property 
{{log4j.configurationFile}} is checked which is intentionally not set in the 
{{log4j2.component.properties}} file as it must be dynamical - via a URL 
resource.
Hence also the variable config is null. *Unfortunately merely {{config != 
null}} is handled and no else case is implemented.*

So my improvement is to implement an else case which is identical to the else 
case of {{if (configLocation == null)}}.
With this solution I do not have to implement cumbersome versions for Web- and 
EJB-applications. 

  was:
We're working with WebSphere 8.0 and our operations team has demanded to 
externalize the {{log4j2.xml}} file per application.
So I defined a URL resource on WAS8 containing the path to the {{log4j2.xml}} 
somewhere on the filesystem.
At first glance the solution seems very simple:
I defined the property {{log4j.configurationFactory}} in the 
{{log4j2.component.properties}} file 
{{log4j.configurationFactory=de.company.MyConfigurationFactory}} available via 
classpath of the application.
In this class I specialized the method {{public Configuration 
getConfiguration(String name, URI configLocation, ClassLoader loader)}}. There 
I make a lookup to the URL resource.

But it does'nt function as of a missing implementation in the class 
{{ConfigurationFactory$Factory}} and the method {{public Configuration 
getConfiguration(final String name, final URI configLocation)}}. When one 
enters the method the variable {{configLocation}} is null. Then the property 
{{log4j.configurationFile}} is checked which is intentionally not set in the 
{{log4j2.component.properties}} file as it must be dynamical - via a URL 
resource.
Hence also the variable config is null. *Unfortunately merely {{config != 
null}} is handled and no else case is implemented.*

So my improvement is to implement an else case which is identical to the else 
case of {{if (configLocation == null)}}.
With this solution I do not have to implement cumbersome versions for Web- and 
EJB-applications. 


> WAS8: externalize log4j2.xml via URL resource
> ---------------------------------------------
>
>                 Key: LOG4J2-1045
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1045
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Configurators
>    Affects Versions: 2.3
>         Environment: WebSphere 8.0; Win7 x64
>            Reporter: Günter Albrecht
>              Labels: patch
>
> We're working with WebSphere 8.0 and our operations team has demanded to 
> externalize the {{log4j2.xml}} file per application.
> So I defined a URL resource on WAS8 containing the path to the {{log4j2.xml}} 
> somewhere on the filesystem.
> At first glance the solution seems very simple:
> I defined the property {{log4j.configurationFactory}} in the 
> {{log4j2.component.properties}} file 
> {{log4j.configurationFactory=de.company.MyConfigurationFactory}} available 
> via classpath of the application.
> In this class I specialized the method {{public Configuration 
> getConfiguration(String name, URI configLocation, ClassLoader loader)}}. 
> There I make a lookup to the URL resource.
> But it does'nt function as of a missing implementation in the class 
> {{ConfigurationFactory$Factory}} and the method {{public Configuration 
> getConfiguration(final String name, final URI configLocation)}}. When one 
> enters the method the variable {{configLocation}} is null. Then the property 
> {{log4j.configurationFile}} is checked which is intentionally not set in the 
> {{log4j2.component.properties}} file as it must be dynamical - via a URL 
> resource.
> Hence also the variable config is null. *Unfortunately merely {{config != 
> null}} is handled and no else case is implemented.*
> So my improvement is to implement an else case which is identical to the else 
> case of {{if (configLocation == null)}}.
> With this solution I do not have to implement cumbersome versions for Web- 
> and EJB-applications. 



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