Hi all mates,
I am trying to setup log4j2 configuration programmatically, I defined
my version of Configuration:
+------------------------------------------------------------------------------------------------------------------------------------+
class MyLoggingConfiguration
extends BaseConfiguration
{
private final String levelName;
private final String pattern;
public MyLoggingConfiguration( String levelName, String pattern )
{
this.levelName = levelName;
this.pattern = pattern;
}
@Override
protected void doConfigure()
{
setName( "my" );
Layout<? extends Serializable> layout = createLayout( pattern,
null, null, null, null );
Appender<? extends Serializable> appender = createAppender(
layout, null, "SYSTEM_OUT", "Console", "false", "true" );
appender.start();
addAppender( appender );
getRootLogger().addAppender( appender, null, null );
Level level = Level.valueOf( levelName );
getRootLogger().setLevel( level );
}
}
+------------------------------------------------------------------------------------------------------------------------------------+
and ConfigurationFactory:
+------------------------------------------------------------------------------------------------------------------------------------+
class MyConfigurationFactory
extends ConfigurationFactory
{
private final String levelName;
private final String pattern;
public MyConfigurationFactory( String levelName, String pattern )
{
this.levelName = levelName;
this.pattern = pattern;
}
@Override
protected String[] getSupportedTypes()
{
return new String[] { "*" };
}
@Override
public Configuration getConfiguration( ConfigurationSource source )
{
return new MyLoggingConfiguration( levelName, pattern );
}
}
+------------------------------------------------------------------------------------------------------------------------------------+
then, as specified in the Javadoc, invoke
ConfigurationFactory#setConfigurationFactory(new
MyConfigurationFactory("INFO", "[%level] %message%n")) before any
other calls to Log4j, but when my application starts, an exception is
thrown:
+------------------------------------------------------------------------------------------------------------------------------------+
Exception in thread "main" java.lang.NullPointerException: No
Configuration was provided
at
org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:323)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:370)
at
org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:149)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:34)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:364)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:319)
...
+------------------------------------------------------------------------------------------------------------------------------------+
What am I doing wrong?
Many thanks in advance, all the best!
-Simo
http://people.apache.org/~simonetripodi/
http://twitter.com/simonetripodi
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