Joe Merten created LOG4J2-952:
---------------------------------
Summary: 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
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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