AvalonLogger (Apache Commons Logging 1.2 API)

java.lang.Object
- org.apache.commons.logging.impl.AvalonLogger

All Implemented Interfaces:

Log
```
public class AvalonLogger
extends Object
implements Log
```
Implementation of commons-logging Log interface that delegates all logging calls to the Avalon logging abstraction: the Logger interface.
There are two ways in which this class can be used:
- the instance can be constructed with an Avalon logger (by calling AvalonLogger(Logger)). In this case, it acts as a simple thin wrapping implementation over the logger. This is particularly useful when using a property setter.
- the setDefaultLogger(org.apache.avalon.framework.logger.Logger) class property can be called which sets the ancestral Avalon logger for this class. Any AvalonLogger instances created through the LogFactory mechanisms will output to child loggers of this Logger.
Note: AvalonLogger does not implement Serializable because the constructors available for it make this impossible to achieve in all circumstances; there is no way to "reconnect" to an underlying Logger object on deserialization if one was just passed in to the constructor of the original object. This class was marked Serializable in the 1.0.4 release of commons-logging, but this never actually worked (a NullPointerException would be thrown as soon as the deserialized object was used), so removing this marker is not considered to be an incompatible change.
Version:

$Id: AvalonLogger.java 1435115 2013-01-18 12:40:19Z tn $

Constructor Summary

Constructors
Constructor and Description
`AvalonLogger(org.apache.avalon.framework.logger.Logger logger)` Constructs an `AvalonLogger` that outputs to the given `Logger` instance.
`AvalonLogger(String name)` Constructs an `AvalonLogger` that will log to a child of the `Logger` set by calling `setDefaultLogger(org.apache.avalon.framework.logger.Logger)`.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`debug(Object message)` Logs a message with `org.apache.avalon.framework.logger.Logger.debug`.
`void`	`debug(Object message, Throwable t)` Logs a message with `org.apache.avalon.framework.logger.Logger.debug`.
`void`	`error(Object message)` Logs a message with `org.apache.avalon.framework.logger.Logger.error`.
`void`	`error(Object message, Throwable t)` Logs a message with `org.apache.avalon.framework.logger.Logger.error`.
`void`	`fatal(Object message)` Logs a message with `org.apache.avalon.framework.logger.Logger.fatalError`.
`void`	`fatal(Object message, Throwable t)` Logs a message with `org.apache.avalon.framework.logger.Logger.fatalError`.
`org.apache.avalon.framework.logger.Logger`	`getLogger()` Gets the Avalon logger implementation used to perform logging.
`void`	`info(Object message)` Logs a message with `org.apache.avalon.framework.logger.Logger.info`.
`void`	`info(Object message, Throwable t)` Logs a message with `org.apache.avalon.framework.logger.Logger.info`.
`boolean`	`isDebugEnabled()` Is logging to `org.apache.avalon.framework.logger.Logger.debug` enabled?
`boolean`	`isErrorEnabled()` Is logging to `org.apache.avalon.framework.logger.Logger.error` enabled?
`boolean`	`isFatalEnabled()` Is logging to `org.apache.avalon.framework.logger.Logger.fatalError` enabled?
`boolean`	`isInfoEnabled()` Is logging to `org.apache.avalon.framework.logger.Logger.info` enabled?
`boolean`	`isTraceEnabled()` Is logging to `org.apache.avalon.framework.logger.Logger.debug` enabled?
`boolean`	`isWarnEnabled()` Is logging to `org.apache.avalon.framework.logger.Logger.warn` enabled?
`static void`	`setDefaultLogger(org.apache.avalon.framework.logger.Logger logger)` Sets the ancestral Avalon logger from which the delegating loggers will descend.
`void`	`trace(Object message)` Logs a message with `org.apache.avalon.framework.logger.Logger.debug`.
`void`	`trace(Object message, Throwable t)` Logs a message with `org.apache.avalon.framework.logger.Logger.debug`.
`void`	`warn(Object message)` Logs a message with `org.apache.avalon.framework.logger.Logger.warn`.
`void`	`warn(Object message, Throwable t)` Logs a message with `org.apache.avalon.framework.logger.Logger.warn`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AvalonLogger
```
public AvalonLogger(org.apache.avalon.framework.logger.Logger logger)
```
    Constructs an AvalonLogger that outputs to the given Logger instance.
    
    Parameters:
    logger - the Avalon logger implementation to delegate to
  - AvalonLogger
```
public AvalonLogger(String name)
```
    Constructs an AvalonLogger that will log to a child of the Logger set by calling setDefaultLogger(org.apache.avalon.framework.logger.Logger).
    
    Parameters:
    name - the name of the avalon logger implementation to delegate to
- Method Detail
  - getLogger
```
public org.apache.avalon.framework.logger.Logger getLogger()
```
    Gets the Avalon logger implementation used to perform logging.
    
    Returns:
    avalon logger implementation
  - setDefaultLogger
```
public static void setDefaultLogger(org.apache.avalon.framework.logger.Logger logger)
```
    Sets the ancestral Avalon logger from which the delegating loggers will descend.
    
    Parameters:
    logger - the default avalon logger, in case there is no logger instance supplied in constructor
  - debug
```
public void debug(Object message,
         Throwable t)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.debug.
    
    Specified by:
    
    debug in interface Log
    
    Parameters:
    message - to log
    t - log this cause
    See Also:
    Log.debug(Object, Throwable)
  - debug
```
public void debug(Object message)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.debug.
    
    Specified by:
    
    debug in interface Log
    
    Parameters:
    message - to log.
    See Also:
    Log.debug(Object)
  - error
```
public void error(Object message,
         Throwable t)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.error.
    
    Specified by:
    
    error in interface Log
    
    Parameters:
    message - to log
    t - log this cause
    See Also:
    Log.error(Object, Throwable)
  - error
```
public void error(Object message)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.error.
    
    Specified by:
    
    error in interface Log
    
    Parameters:
    message - to log
    See Also:
    Log.error(Object)
  - fatal
```
public void fatal(Object message,
         Throwable t)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.fatalError.
    
    Specified by:
    
    fatal in interface Log
    
    Parameters:
    message - to log.
    t - log this cause.
    See Also:
    Log.fatal(Object, Throwable)
  - fatal
```
public void fatal(Object message)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.fatalError.
    
    Specified by:
    
    fatal in interface Log
    
    Parameters:
    message - to log
    See Also:
    Log.fatal(Object)
  - info
```
public void info(Object message,
        Throwable t)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.info.
    
    Specified by:
    
    info in interface Log
    
    Parameters:
    message - to log
    t - log this cause
    See Also:
    Log.info(Object, Throwable)
  - info
```
public void info(Object message)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.info.
    
    Specified by:
    
    info in interface Log
    
    Parameters:
    message - to log
    See Also:
    Log.info(Object)
  - isDebugEnabled
```
public boolean isDebugEnabled()
```
    Is logging to org.apache.avalon.framework.logger.Logger.debug enabled?
    
    Specified by:
    
    isDebugEnabled in interface Log
    
    Returns:
    true if debug is enabled in the underlying logger.
    See Also:
    Log.isDebugEnabled()
  - isErrorEnabled
```
public boolean isErrorEnabled()
```
    Is logging to org.apache.avalon.framework.logger.Logger.error enabled?
    
    Specified by:
    
    isErrorEnabled in interface Log
    
    Returns:
    true if error is enabled in the underlying logger.
    See Also:
    Log.isErrorEnabled()
  - isFatalEnabled
```
public boolean isFatalEnabled()
```
    Is logging to org.apache.avalon.framework.logger.Logger.fatalError enabled?
    
    Specified by:
    
    isFatalEnabled in interface Log
    
    Returns:
    true if fatal is enabled in the underlying logger.
    See Also:
    Log.isFatalEnabled()
  - isInfoEnabled
```
public boolean isInfoEnabled()
```
    Is logging to org.apache.avalon.framework.logger.Logger.info enabled?
    
    Specified by:
    
    isInfoEnabled in interface Log
    
    Returns:
    true if info is enabled in the underlying logger.
    See Also:
    Log.isInfoEnabled()
  - isTraceEnabled
```
public boolean isTraceEnabled()
```
    Is logging to org.apache.avalon.framework.logger.Logger.debug enabled?
    
    Specified by:
    
    isTraceEnabled in interface Log
    
    Returns:
    true if trace is enabled in the underlying logger.
    See Also:
    Log.isTraceEnabled()
  - isWarnEnabled
```
public boolean isWarnEnabled()
```
    Is logging to org.apache.avalon.framework.logger.Logger.warn enabled?
    
    Specified by:
    
    isWarnEnabled in interface Log
    
    Returns:
    true if warn is enabled in the underlying logger.
    See Also:
    Log.isWarnEnabled()
  - trace
```
public void trace(Object message,
         Throwable t)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.debug.
    
    Specified by:
    
    trace in interface Log
    
    Parameters:
    message - to log.
    t - log this cause.
    See Also:
    Log.trace(Object, Throwable)
  - trace
```
public void trace(Object message)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.debug.
    
    Specified by:
    
    trace in interface Log
    
    Parameters:
    message - to log
    See Also:
    Log.trace(Object)
  - warn
```
public void warn(Object message,
        Throwable t)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.warn.
    
    Specified by:
    
    warn in interface Log
    
    Parameters:
    message - to log
    t - log this cause
    See Also:
    Log.warn(Object, Throwable)
  - warn
```
public void warn(Object message)
```
    Logs a message with org.apache.avalon.framework.logger.Logger.warn.
    
    Specified by:
    
    warn in interface Log
    
    Parameters:
    message - to log
    See Also:
    Log.warn(Object)

Class AvalonLogger

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AvalonLogger

AvalonLogger

Method Detail

getLogger

setDefaultLogger

debug

debug

error

error

fatal

fatal

info

info

isDebugEnabled

isErrorEnabled

isFatalEnabled

isInfoEnabled

isTraceEnabled

isWarnEnabled

trace

trace

warn

warn