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https://issues.apache.org/jira/browse/LOG4J2-1045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14586322#comment-14586322
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Günter Albrecht commented on LOG4J2-1045:
-----------------------------------------
No, bug LOG4J2-1050 does not relate to this bug.
My bug describes how to handle a configurable location of the {{log4j2.xml}}
whereas bug LOG4J2-1050 wants to configure a location of the logging output
file relative to the location of the configuration file {{log4j2.xml}}.
I patched {{ConfigurationFactory$Factory}} like this and it works fine.
This way I have my single solution for {{MyConfigurationFactory}} working both
programmatically and declaratively for Web- and EJB-Apps:
{code:title=ConfigurationFactory$Factory.getConfiguration(final String name,
final URI configLocation)|borderStyle=solid}
if (configLocation == null) {
final String config = this.substitutor.replace(
PropertiesUtil.getProperties().getStringProperty(CONFIGURATION_FILE_PROPERTY));
if (config != null) {
...
}
//--- Patch Jira Bug: https://issues.apache.org/jira/browse/LOG4J2-1045
-------------------
else {
for (final ConfigurationFactory factory : factories) {
final String[] types = factory.getSupportedTypes();
if (types != null) {
for (final String type : types) {
if (type.equals("*")) {
final Configuration configuration =
factory.getConfiguration(name, configLocation); // configLocation == null
if (configuration != null) {
return configuration;
}
}
}
}
}
}
//-----------------------------------------------------------------------------------------
} else {
...
}
Configuration config = getConfiguration(true, name);
...
{code}
> 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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