freenet.support

Class LoggerHookChain

java.lang.Object

freenet.support.Logger

freenet.support.LoggerHook

freenet.support.LoggerHookChain

public class LoggerHookChain
extends LoggerHook

A class that takes logging messages and distributes them to LoggerHooks. It implements LoggerHook itself, so that instances can be chained (just don't create loops).

Nested Class Summary

Nested classes/interfaces inherited from class freenet.support.LoggerHook

LoggerHook.DetailedThreshold, LoggerHook.InvalidThresholdException

Nested classes/interfaces inherited from class freenet.support.Logger

Logger.LogLevel, Logger.OSThread

Field Summary

Fields inherited from class freenet.support.LoggerHook

detailedThresholds, threshold

Fields inherited from class freenet.support.Logger

DEBUG, ERROR, INTERNAL, MINOR, NORMAL, WARNING

Constructor Summary

Constructors

Constructor and Description
LoggerHookChain() Create a logger.
LoggerHookChain(Logger.LogLevel threshold) Create a logger.
LoggerHookChain(java.lang.String threshold)

Method Summary

Modifier and Type	Method and Description
void	addHook(LoggerHook lh) Add a hook which will be called every time a message is logged
LoggerHook[]	getHooks() Returns all the current hooks.
void	log(java.lang.Object o, java.lang.Class<?> c, java.lang.String msg, java.lang.Throwable e, Logger.LogLevel priority) This is the implementation of LoggerHook method, which allows one logger receive events from another.
void	removeHook(LoggerHook lh) Remove a hook from the logger.
void	setDetailedThresholds(java.lang.String details) Set the detailed list of thresholds.
void	setThreshold(Logger.LogLevel thresh) Changes the priority threshold.

Methods inherited from class freenet.support.LoggerHook

acceptPriority, getDetailedThresholds, getThresholdNew, instanceRegisterLogThresholdCallback, instanceShouldLog, instanceShouldLog, instanceUnregisterLogThresholdCallback, log, log, log, log, setThreshold

Methods inherited from class freenet.support.Logger

debug, debug, debug, debug, destroyChainIfEmpty, error, error, error, error, fatal, getChain, getThreshold, globalAddHook, globalGetThreshold, globalGetThresholdNew, globalRemoveHook, globalSetThreshold, globalSetThreshold, instanceShouldLog, instanceShouldLog, log, log, log, log, log, logStatic, logStatic, logStatic, minor, minor, minor, minor, normal, normal, normal, normal, registerClass, registerLogThresholdCallback, setThreshold, setupChain, setupStdoutLogging, setupStdoutLogging, shouldLog, shouldLog, shouldLog, shouldLog, unregisterLogThresholdCallback, warning, warning, warning, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggerHookChain

public LoggerHookChain()

Create a logger. Threshhold set to NORMAL.

LoggerHookChain

public LoggerHookChain(Logger.LogLevel threshold)

Create a logger.

Parameters:

threshold - Suppress all log calls with lower priority then this.

LoggerHookChain

public LoggerHookChain(java.lang.String threshold)
                throws LoggerHook.InvalidThresholdException

Throws:

LoggerHook.InvalidThresholdException

Method Detail

log

public void log(java.lang.Object o,
                java.lang.Class<?> c,
                java.lang.String msg,
                java.lang.Throwable e,
                Logger.LogLevel priority)

This is the implementation of LoggerHook method, which allows one logger receive events from another.

Specified by:

log in class LoggerHook

Parameters:

o - The object where this message was generated.

c - The class where this message was generated.

msg - A clear and verbose message describing the event

e - Logs this exception with the message.

priority - The priority of the mesage, one of LogLevel.ERROR, LogLevel.NORMAL, LogLevel.MINOR, or LogLevel.DEBUG.

addHook

public void addHook(LoggerHook lh)

Add a hook which will be called every time a message is logged

removeHook

public void removeHook(LoggerHook lh)

Remove a hook from the logger.

getHooks

public LoggerHook[] getHooks()

Returns all the current hooks.

setDetailedThresholds

public void setDetailedThresholds(java.lang.String details)
                           throws LoggerHook.InvalidThresholdException

Description copied from class: Logger

Set the detailed list of thresholds. This allows to specify that we are interested in debug level logging for one class but are only interested in errors for another, which can be very useful for debugging. Format is classname:threshold,classname:threshold...

Overrides:

setDetailedThresholds in class LoggerHook

Throws:

LoggerHook.InvalidThresholdException

setThreshold

public void setThreshold(Logger.LogLevel thresh)

Description copied from class: Logger

Changes the priority threshold.

Overrides:

setThreshold in class LoggerHook

Parameters:

thresh - The new threshhold