de.skuzzle.slf4j

Class BridgeHandlerInstaller

java.lang.Object

de.skuzzle.slf4j.BridgeHandlerInstaller

All Implemented Interfaces:

javax.servlet.ServletContainerInitializer

public final class BridgeHandlerInstaller
extends Object
implements javax.servlet.ServletContainerInitializer

Automatically installs the SLF4JBridgeHandler upon start of the servlet container in order to redirect JDK logging to slf4j. Additionally, this class will modify the JDK's root logger's log level in order to redirect messages of any severity to slf4j. You can specify this level using the system property "de.skuzzle.slf4j.jdkLogLevel".

Please refer to the slf4j documentation in order to understand the implications of redirecting the JDK log to slf4j.

Author:

Simon Taddiken

See Also:

JDK_LOG_LEVEL

Field Summary

Fields

Modifier and Type	Field and Description
static String	JDK_LOG_LEVEL System property for specifying the log level to which the JDK root logger will be set.

Constructor Summary

Constructors

Constructor and Description
BridgeHandlerInstaller() Deprecated. Do not instantiate this class manually.

Method Summary

Modifier and Type	Method and Description
void	onStartup(Set<Class<?>> c, javax.servlet.ServletContext ctx) Installs the bridge handler and sets the log level of the root logger.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

JDK_LOG_LEVEL

public static final String JDK_LOG_LEVEL

System property for specifying the log level to which the JDK root logger will be set. If not specified, the root logger's level will be set to Level.ALL which will cause every single log message to be redirected to slf4j.

See Also:

Constant Field Values

Constructor Detail

BridgeHandlerInstaller

@Deprecated
public BridgeHandlerInstaller()

Deprecated. Do not instantiate this class manually.

Public constructor for Java's Service Loader.

Method Detail

onStartup

public final void onStartup(Set<Class<?>> c,
                            javax.servlet.ServletContext ctx)
                     throws javax.servlet.ServletException

Installs the bridge handler and sets the log level of the root logger.

Specified by:

onStartup in interface javax.servlet.ServletContainerInitializer

Throws:

javax.servlet.ServletException