org.apache.juli

Class ClassLoaderLogManager

java.lang.Object

java.util.logging.LogManager

org.apache.juli.ClassLoaderLogManager

public class ClassLoaderLogManager
extends LogManager

Per classloader LogManager implementation. For light debugging, set the system property org.apache.juli.ClassLoaderLogManager.debug=true. Short configuration information will be sent to System.err.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	ClassLoaderLogManager.ClassLoaderLogInfo
protected static class	ClassLoaderLogManager.LogNode
protected static class	ClassLoaderLogManager.RootLogger This class is needed to instantiate the root of each per classloader hierarchy.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<ClassLoader,ClassLoaderLogManager.ClassLoaderLogInfo>	classLoaderLoggers Map containing the classloader information, keyed per classloader.
static String	DEBUG_PROPERTY
protected ThreadLocal<String>	prefix This prefix is used to allow using prefixes for the properties names of handlers and their subcomponents.
protected boolean	useShutdownHook Determines if the shutdown hook is used to perform any necessary clean-up such as flushing buffered handlers on JVM shutdown.

Fields inherited from class java.util.logging.LogManager

LOGGING_MXBEAN_NAME

Constructor Summary

Constructors

Constructor and Description
ClassLoaderLogManager()

Method Summary

Modifier and Type	Method and Description
boolean	addLogger(Logger logger) Add the specified logger to the classloader local configuration.
protected static void	doSetParentLogger(Logger logger, Logger parent) Set parent child relationship between the two specified loggers.
protected ClassLoaderLogManager.ClassLoaderLogInfo	getClassLoaderInfo(ClassLoader classLoader) Retrieve the configuration associated with the specified classloader.
Logger	getLogger(String name) Get the logger associated with the specified name inside the classloader local configuration.
Enumeration<String>	getLoggerNames() Get an enumeration of the logger names currently defined in the classloader local configuration.
String	getProperty(String name) Get the value of the specified property in the classloader local configuration.
boolean	isUseShutdownHook()
void	readConfiguration()
protected void	readConfiguration(ClassLoader classLoader) Read configuration for the specified classloader.
void	readConfiguration(InputStream is)
protected void	readConfiguration(InputStream is, ClassLoader classLoader) Load specified configuration.
protected String	replace(String str) System property replacement in the given string.
void	reset()
void	setUseShutdownHook(boolean useShutdownHook)
void	shutdown() Shuts down the logging system.

Methods inherited from class java.util.logging.LogManager

addPropertyChangeListener, checkAccess, getLoggingMXBean, getLogManager, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG_PROPERTY

public static final String DEBUG_PROPERTY

classLoaderLoggers

protected final Map<ClassLoader,ClassLoaderLogManager.ClassLoaderLogInfo> classLoaderLoggers

Map containing the classloader information, keyed per classloader. A weak hashmap is used to ensure no classloader reference is leaked from application redeployment.

prefix

protected final ThreadLocal<String> prefix

This prefix is used to allow using prefixes for the properties names of handlers and their subcomponents.

useShutdownHook

protected volatile boolean useShutdownHook

Determines if the shutdown hook is used to perform any necessary clean-up such as flushing buffered handlers on JVM shutdown. Defaults to true but may be set to false if another component ensures that shutdown() is called.

Constructor Detail

ClassLoaderLogManager

public ClassLoaderLogManager()

Method Detail

isUseShutdownHook

public boolean isUseShutdownHook()

setUseShutdownHook

public void setUseShutdownHook(boolean useShutdownHook)

addLogger

public boolean addLogger(Logger logger)

Add the specified logger to the classloader local configuration.

Overrides:

addLogger in class LogManager

Parameters:

logger - The logger to be added

getLogger

public Logger getLogger(String name)

Get the logger associated with the specified name inside the classloader local configuration. If this returns null, and the call originated for Logger.getLogger, a new logger with the specified name will be instantiated and added using addLogger.

Overrides:

getLogger in class LogManager

Parameters:

name - The name of the logger to retrieve

getLoggerNames

public Enumeration<String> getLoggerNames()

Get an enumeration of the logger names currently defined in the classloader local configuration.

Overrides:

getLoggerNames in class LogManager

getProperty

public String getProperty(String name)

Get the value of the specified property in the classloader local configuration.

Overrides:

getProperty in class LogManager

Parameters:

name - The property name

readConfiguration

public void readConfiguration()
                       throws IOException,
                              SecurityException

Overrides:

readConfiguration in class LogManager

Throws:

IOException

SecurityException

readConfiguration

public void readConfiguration(InputStream is)
                       throws IOException,
                              SecurityException

Overrides:

readConfiguration in class LogManager

Throws:

IOException

SecurityException

reset

public void reset()
           throws SecurityException

Overrides:

reset in class LogManager

Throws:

SecurityException

shutdown

public void shutdown()

Shuts down the logging system.

getClassLoaderInfo

protected ClassLoaderLogManager.ClassLoaderLogInfo getClassLoaderInfo(ClassLoader classLoader)

Retrieve the configuration associated with the specified classloader. If it does not exist, it will be created.

Parameters:

classLoader - The classloader for which we will retrieve or build the configuration

Returns:

the log configuration

readConfiguration

protected void readConfiguration(ClassLoader classLoader)
                          throws IOException

Read configuration for the specified classloader.

Parameters:

classLoader - The classloader

Throws:

IOException - Error reading configuration

readConfiguration

protected void readConfiguration(InputStream is,
                                 ClassLoader classLoader)
                          throws IOException

Load specified configuration.

Parameters:

is - InputStream to the properties file

classLoader - for which the configuration will be loaded

Throws:

IOException - If something wrong happens during loading

doSetParentLogger

protected static void doSetParentLogger(Logger logger,
                                        Logger parent)

Set parent child relationship between the two specified loggers.

Parameters:

logger - The logger

parent - The parent logger

replace

protected String replace(String str)

System property replacement in the given string.

Parameters:

str - The original string

Returns:

the modified string