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Java Source Code / Java Documentation » HTML Parser » jericho html » au.id.jericho.lib.html 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


au.id.jericho.lib.html.LoggerProvider

All known Subclasses:   au.id.jericho.lib.html.LoggerProviderJCL,  au.id.jericho.lib.html.LoggerProviderLog4J,  au.id.jericho.lib.html.LoggerProviderSLF4J,  au.id.jericho.lib.html.LoggerProviderJava,  au.id.jericho.lib.html.LoggerProviderDisabled,  au.id.jericho.lib.html.LoggerProviderSTDERR,
LoggerProvider
public interface LoggerProvider (Code)
Defines the interface for a factory class to provide Logger instances for each Source object.

It is not usually necessary for users to create implementations of this interface, as several predefined instances are defined which provide the most commonly required Logger implementations.

By default, a LoggerProvider is chosen automatically according to the algorithm described in the static Config.LoggerProvider property. This automatic choice can be overridden by setting the Config.LoggerProvider property manually with an instance of this interface, but this is also usually not necessary.



Field Summary
final public static  LoggerProviderDISABLED
     A LoggerProvider implementation that disables all log messages.
final public static  LoggerProviderJAVA
     A LoggerProvider implementation that wraps the standard java.util.logging system included in the Java SDK version 1.4 and above.

This is the default used if no other logging framework is detected.

final public static  LoggerProviderJCL
     A LoggerProvider implementation that wraps the Jakarta Commons Logging (JCL) framework.
final public static  LoggerProviderLOG4J
     A LoggerProvider implementation that wraps the Apache Log4J framework.
final public static  LoggerProviderSLF4J
     A LoggerProvider implementation that wraps the SLF4J framework.
final public static  LoggerProviderSTDERR
     A LoggerProvider implementation that sends all log messages to the standard error output stream (System.err).


Method Summary
 LoggergetLogger(String name)
     Creates a new Logger instance with the specified name.

The name argument is used by the underlying logging implementation, and is normally a dot-separated name based on the package name or class name of the subsystem.

The name used for all automatically created Logger instances is "net.htmlparser.jericho".
Parameters:
  name - the name of the logger, the use of which is determined by the underlying logging implementation, may be null.


Field Detail
DISABLED
final public static LoggerProvider DISABLED(Code)
A LoggerProvider implementation that disables all log messages.



JAVA
final public static LoggerProvider JAVA(Code)
A LoggerProvider implementation that wraps the standard java.util.logging system included in the Java SDK version 1.4 and above.

This is the default used if no other logging framework is detected. See the description of the static Config.LoggerProvider property for more details.

The following mapping of logging levels is used:
Logger leveljava.util.logging.Level
Logger.error(String) ERROR SEVERE
Logger.warn(String) WARN WARNING
Logger.info(String) INFO INFO
Logger.debug(String) DEBUG FINE




JCL
final public static LoggerProvider JCL(Code)
A LoggerProvider implementation that wraps the Jakarta Commons Logging (JCL) framework.

See the description of the static Config.LoggerProvider property for details on when this implementation is used as the default.

The following mapping of logging levels is used:
Logger levelorg.apache.commons.logging level
Logger.error(String) ERROR error
Logger.warn(String) WARN warn
Logger.info(String) INFO info
Logger.debug(String) DEBUG debug




LOG4J
final public static LoggerProvider LOG4J(Code)
A LoggerProvider implementation that wraps the Apache Log4J framework.

See the description of the static Config.LoggerProvider property for details on when this implementation is used as the default.

The following mapping of logging levels is used:
Logger levelorg.apache.log4j.Level
Logger.error(String) ERROR ERROR
Logger.warn(String) WARN WARN
Logger.info(String) INFO INFO
Logger.debug(String) DEBUG DEBUG




SLF4J
final public static LoggerProvider SLF4J(Code)
A LoggerProvider implementation that wraps the SLF4J framework.

See the description of the static Config.LoggerProvider property for details on when this implementation is used as the default.

The following mapping of logging levels is used:
Logger levelorg.slf4j.Logger level
Logger.error(String) ERROR error
Logger.warn(String) WARN warn
Logger.info(String) INFO info
Logger.debug(String) DEBUG debug




STDERR
final public static LoggerProvider STDERR(Code)
A LoggerProvider implementation that sends all log messages to the standard error output stream (System.err).

The implementation uses the following code to create each logger:
new WriterLogger (new OutputStreamWriter(System.err),name)






Method Detail
getLogger
Logger getLogger(String name)(Code)
Creates a new Logger instance with the specified name.

The name argument is used by the underlying logging implementation, and is normally a dot-separated name based on the package name or class name of the subsystem.

The name used for all automatically created Logger instances is "net.htmlparser.jericho".
Parameters:
  name - the name of the logger, the use of which is determined by the underlying logging implementation, may be null. a new Logger instance with the specified name.




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