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https://issues.apache.org/jira/browse/LOG4J2-952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14718553#comment-14718553
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Ralph Goers commented on LOG4J2-952:
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Bart, Jira is not an email system for you to document every random thought.
While your comments are welcome, please limit them to be concise and to the
point or you may find that your comments are being edited or deleted.
This comment is a great example. It can easily be reduced to a few sentences.
Ralph
> FAQ: How do I configure log4j2 programmatically in code without a
> configuration file?
> -------------------------------------------------------------------------------------
>
> Key: LOG4J2-952
> URL: https://issues.apache.org/jira/browse/LOG4J2-952
> Project: Log4j 2
> Issue Type: Bug
> Components: API, Configurators, Documentation
> Affects Versions: 2.1
> Reporter: Joe Merten
> Attachments: LOG4J2-952-2.patch, LOG4J2-952-3.patch,
> LOG4J2-952-4.patch, LOG4J2-952.patch
>
>
> I found [this
> link|http://logging.apache.org/log4j/2.x/faq.html#config_from_code] which
> said:
> {quote}
> You could use the static method #initialize(String contextName, ClassLoader
> loader, String configLocation) in
> org.apache.logging.log4j.core.config.Configurator. (You can pass null for the
> class loader.) Be aware that this class is not part of the public API so your
> code may break with any minor release.
> {quote}
> This documentation is unclear because it points to a member function which
> needs a filename {{configLocation}} where as the topic is »without a
> configuration file«.
> It shoud rather point to the member function
> {{org.apache.logging.log4j.core.config.Configurator.initialize(ClassLoader
> loader, ConfigurationSource source)}}.
> Example:
> {code:java}
> import org.apache.logging.log4j.core.config.ConfigurationSource;
> import org.apache.logging.log4j.core.config.Configurator;
> final String hardCodedXmlConfig =
> "<?xml version='1.0' encoding='UTF-8'?>\n" +
> "<Configuration status='INFO'>\n" +
> " <Appenders>\n" +
> " <Console name='Console' target='SYSTEM_OUT'>\n" +
> " <PatternLayout pattern='%d{HH:mm:ss.SSS} [%t] %-5level
> %logger{36} - %msg%n'/>\n" +
> " </Console>\n" +
> " </Appenders>\n" +
> " <Loggers>\n" +
> " <Root level='debug'>\n" +
> " <AppenderRef ref='Console'/>\n" +
> " </Root>\n" +
> " </Loggers>\n" +
> "</Configuration>\n";
> try {
> Configurator.initialize(null, new ConfigurationSource(new
> ByteArrayInputStream(hardCodedXmlConfig.getBytes())));
> } catch (IOException e) {
> e.printStackTrace();
> }
> {code}
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