ClassLoaderLogManager (Apache Tomcat 8.0.15 API Documentation)

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()

Constructors
Constructor and Description
`ClassLoaderLogManager()`

Method Summary

Methods
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
  - readConfiguration
```
protected void readConfiguration(ClassLoader classLoader)
                          throws IOException
```
    Read configuration for the specified classloader.
    
    Parameters:
    classLoader -
    
    Throws:
    
    IOException - Error
  - 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 -
    parent -
  - replace
```
protected String replace(String str)
```
    System property replacement in the given string.
    
    Parameters:
    str - The original string
    
    Returns:
    the modified string

Class ClassLoaderLogManager

Nested Class Summary

Field Summary

Fields inherited from class java.util.logging.LogManager

Constructor Summary

Method Summary

Methods inherited from class java.util.logging.LogManager

Methods inherited from class java.lang.Object

Field Detail

DEBUG_PROPERTY

classLoaderLoggers

prefix

useShutdownHook

Constructor Detail

ClassLoaderLogManager

Method Detail

isUseShutdownHook

setUseShutdownHook

addLogger

getLogger

getLoggerNames

getProperty

readConfiguration

readConfiguration

reset

shutdown

getClassLoaderInfo

readConfiguration

readConfiguration

doSetParentLogger

replace