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https://issues.apache.org/jira/browse/LOG4J2-952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14712554#comment-14712554
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Ralph Goers commented on LOG4J2-952:
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The hope is that using addComponent allows you to add anything. The others are
just convenience methods. Technically we could create component assemblers for
all the plugins but that seems a bit overboard.
Without actually copying your sample above into a Java class and trying it I
would say what you have looks like what I would expect.
Components are only required to have a name when the Plugin requires it.
Yes, I need to add AsyncLogger and AsyncRootLogger. I also forgot to add
CustomLevels. I will take care of that.
Yes, if I get confirmation that you guys think this is the right way to go I
will add documentation after I commit the code. Yes, both the programmatic and
properties configuration need more examples. That said, the
PropertiesConfigurationFactory is a pretty good example of how to use the
assembler.
> 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.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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