com.openpojo.log

Class Logger

java.lang.Object

com.openpojo.log.Logger

Direct Known Subclasses:

JavaLogger, Log4JLogger, SLF4JLogger

public abstract class Logger
extends Object

The main logger interface that all code should use to communicate log messages. See java.text.MessageFormat
For example:

 Logger log = Logger.getLog(MyClass.class);
 log.info("This is my {0}, message for {1}.", "test", new Date());
 

Would log something like:

      MyClass: INFO - This is my test message for 12/01/2009.
 

Constructor Summary

Constructors

Constructor and Description
Logger()

Method Summary

Modifier and Type	Method and Description
abstract void	debug(Object message) Logs the object's toString() with debug priority.
void	debug(String message, Object... args) Logs a message with debug priority.
abstract void	error(Object message) Logs the object's toString() with error priority.
void	error(String message, Object... args) Logs a message with error priority.
abstract void	fatal(Object message) Logs the object's toString() with fatal priority.
void	fatal(String message, Object... args) Logs a message with fatal priority.
protected String	format(Object message) Take a simple log message object and turn it into a string.
abstract void	info(Object message) Logs the object's toString() with info priority.
void	info(String message, Object... args) Logs a message with info priority.
abstract boolean	isDebugEnabled() Returns true if the underlying log API's debug is enabled.
abstract boolean	isErrorEnabled() Returns true if the underlying log API's error is enabled.
abstract boolean	isFatalEnabled() Returns true if the underlying log API's fatal is enabled.
abstract boolean	isInfoEnabled() Returns true if the underlying log API's info is enabled.
abstract boolean	isTraceEnabled() Returns true if the underlying log API's trace is enabled.
abstract boolean	isWarnEnabled() Returns true if the underlying log API's warn is enabled.
abstract void	trace(Object arg) Logs the object's toString() with trace priority.
void	trace(String message, Object... args) Logs a message with trace priority.
abstract void	warn(Object message) Logs the object's toString() with warn priority.
void	warn(String message, Object... args) Logs a message with warn priority.

Methods inherited from class java.lang.Object

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

Constructor Detail

Logger

public Logger()

Method Detail

isTraceEnabled

public abstract boolean isTraceEnabled()

Returns true if the underlying log API's trace is enabled.

Returns:

returns true if trace is enabled.

isDebugEnabled

public abstract boolean isDebugEnabled()

Returns true if the underlying log API's debug is enabled.

Returns:

returns true if debug is enabled.

isInfoEnabled

public abstract boolean isInfoEnabled()

Returns true if the underlying log API's info is enabled.

Returns:

returns true if info is enabled.

isWarnEnabled

public abstract boolean isWarnEnabled()

Returns true if the underlying log API's warn is enabled.

Returns:

returns true if warn is enabled.

isErrorEnabled

public abstract boolean isErrorEnabled()

Returns true if the underlying log API's error is enabled.

Returns:

returns true if error is enabled.

isFatalEnabled

public abstract boolean isFatalEnabled()

Returns true if the underlying log API's fatal is enabled.

Returns:

returns true if fatal is enabled.

trace

public final void trace(String message,
                        Object... args)

Logs a message with trace priority.

Parameters:

message - The message to log.

args - The arguments to use in text replacement.

debug

public final void debug(String message,
                        Object... args)

Logs a message with debug priority.

Parameters:

message - The message to log.

args - The arguments to use in text replacement.

info

public final void info(String message,
                       Object... args)

Logs a message with info priority.

Parameters:

message - The message to log.

args - The arguments to use in text replacement.

warn

public final void warn(String message,
                       Object... args)

Logs a message with warn priority.

Parameters:

message - The message to log.

args - The arguments to use in text replacement.

error

public final void error(String message,
                        Object... args)

Logs a message with error priority.

Parameters:

message - The message to log.

args - The arguments to use in text replacement.

fatal

public final void fatal(String message,
                        Object... args)

Logs a message with fatal priority.

Parameters:

message - The message to log.

args - The arguments to use in text replacement.

trace

public abstract void trace(Object arg)

Logs the object's toString() with trace priority.

Parameters:

arg - The object to log.

debug

public abstract void debug(Object message)

Logs the object's toString() with debug priority.

Parameters:

message - The object to log.

info

public abstract void info(Object message)

Logs the object's toString() with info priority.

Parameters:

message - The object to log.

warn

public abstract void warn(Object message)

Logs the object's toString() with warn priority.

Parameters:

message - The object to log.

error

public abstract void error(Object message)

Logs the object's toString() with error priority.

Parameters:

message - The object to log.

fatal

public abstract void fatal(Object message)

Logs the object's toString() with fatal priority.

Parameters:

message - The object to log.

format

protected String format(Object message)

Take a simple log message object and turn it into a string.

Parameters:

message - The message to log.

Returns:

A string format for message.