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hk.hku.cecid.phoenix.common.util
Class Logger  

java.lang.Object
  hk.hku.cecid.phoenix.common.util.Logger

Direct Known Subclasses:

JDKLogger, Log4JLogger

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public abstract class Logger

extends java.lang.Object

This is a wrapper class for logging. This class shields the complexity for using JDK1.3 or JDK1.4, using log4j or JDK Logging API. All configuration information are read from properties file.

Version:

$Revision: 1.15 $

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Field Summary
protected static java.util.HashMap	cache           Cached logger
protected  java.lang.String	className           The class name for logging in funcIn/fucnOut.
protected static java.lang.String	DEF_LOGFILE           Default name of log file
protected static java.lang.String	fileSep           Variable holding the file separator charactor
protected static java.lang.String	homeDir           Variable holding the home directory of the user
protected static int	level           Variable for the log level
protected static java.lang.String	logFileName           Variable for full path of the log file
protected static int	MIN_ROLLING_SIZE           Minumum limit size for rolling log files
protected static int	size           Variable for the maximum log file size (rotating log)
protected static boolean	useJDK           Variable controlling whether to use JDK 1.4 Logging or not

 

Constructor Summary

Logger()

 

Method Summary
abstract  void	debug(java.lang.String mesg)           Does a level 0 logging.
abstract  void	error(java.lang.String mesg)           Does a level 3 logging.
void	funcIn(java.lang.String funcName)           Does a level 0 logging on function in/out.
void	funcOut(java.lang.String funcName)           Does a level 0 logging on function in/out.
static Logger	getLogger(java.lang.String name)           Gets a logger instance by a specified name as key.
abstract  void	info(java.lang.String mesg)           Does a level 1 logging.
protected  void	setLoggingClassName(java.lang.String name)
static void	setLoggingProperty(Property prop)           Sets logging property by providing a Property object.
static void	setLoggingProperty(java.lang.String useLogger, java.lang.String logPath, java.lang.String logFile, java.lang.String logLevel, java.lang.String logSize)           Sets logging property by providing individual property values.
abstract  void	warn(java.lang.String mesg)           Does a level 2 logging.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

DEF_LOGFILE

protected static final java.lang.String DEF_LOGFILE

Default name of log file

See Also:

Constant Field Values

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MIN_ROLLING_SIZE

protected static final int MIN_ROLLING_SIZE

Minumum limit size for rolling log files

See Also:

Constant Field Values

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useJDK

protected static boolean useJDK

Variable controlling whether to use JDK 1.4 Logging or not

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logFileName

protected static java.lang.String logFileName

Variable for full path of the log file

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level

protected static int level

Variable for the log level

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size

protected static int size

Variable for the maximum log file size (rotating log)

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homeDir

protected static java.lang.String homeDir

Variable holding the home directory of the user

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fileSep

protected static java.lang.String fileSep

Variable holding the file separator charactor

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cache

protected static java.util.HashMap cache

Cached logger

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className

protected java.lang.String className

The class name for logging in funcIn/fucnOut. This is to be the same as the name for use in getLogger().

Constructor Detail

Logger

public Logger()

Method Detail

debug

public abstract void debug(java.lang.String mesg)

Does a level 0 logging. Equivalent to debug() in Log4J.

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info

public abstract void info(java.lang.String mesg)

Does a level 1 logging. Equivalent to info() in Log4J.

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warn

public abstract void warn(java.lang.String mesg)

Does a level 2 logging. Equivalent to warn() in Log4J.

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error

public abstract void error(java.lang.String mesg)

Does a level 3 logging. Equivalent to error() in Log4J.

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funcIn

public void funcIn(java.lang.String funcName)

Does a level 0 logging on function in/out.

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funcOut

public void funcOut(java.lang.String funcName)

Does a level 0 logging on function in/out.

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setLoggingClassName

protected void setLoggingClassName(java.lang.String name)

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setLoggingProperty

public static void setLoggingProperty(Property prop)

Sets logging property by providing a Property object. The change of setting will affect the log objects created afterwards. All log objects created beforehand will not be affected.

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setLoggingProperty

public static void setLoggingProperty(java.lang.String useLogger,
                                      java.lang.String logPath,
                                      java.lang.String logFile,
                                      java.lang.String logLevel,
                                      java.lang.String logSize)

Sets logging property by providing individual property values. The change of setting will affect the log objects created afterwards. All log objects created beforehand will not be affected.

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getLogger

public static Logger getLogger(java.lang.String name)

Gets a logger instance by a specified name as key. Internally, passing the same name as parameters will always get the same Logger object. Whether the logger instance is a JDK-based, or Log4J-based in automatically determined.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> hk >> hku >> cecid >> phoenix >> common >> [ util overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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