Package org.geotools.util.logging
Class Log4JLoggerFactory
- Object
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- LoggerFactory<Logger>
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- Log4JLoggerFactory
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public class Log4JLoggerFactory extends LoggerFactory<Logger>
A factory for loggers that redirect all Java logging events to the Apache's Log4J framework.- Since:
- 2.4
- Author:
- Martin Desruisseaux
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Constructor Summary
Constructors Modifier Constructor Description protected
Log4JLoggerFactory()
Constructs a default factory.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected Logger
getImplementation(String name)
Returns the implementation to use for the logger of the specified name, ornull
if the logger would delegates to Java logging anyway.static Log4JLoggerFactory
getInstance()
Returns the unique instance of this factory.String
lookupConfiguration()
Look up configuration information, ornull
unknown.protected Logger
unwrap(Logger logger)
Returns the implementation wrapped by the specified logger, ornull
if none.protected Logger
wrap(String name, Logger implementation)
Wraps the specified implementation in a Java logger.-
Methods inherited from class LoggerFactory
getImplementationClass, getLogger
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Constructor Detail
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Log4JLoggerFactory
protected Log4JLoggerFactory() throws NoClassDefFoundError
Constructs a default factory.- Throws:
NoClassDefFoundError
- if Apache'sLog
class was not found on the classpath.
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Method Detail
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getInstance
public static Log4JLoggerFactory getInstance() throws NoClassDefFoundError
Returns the unique instance of this factory.- Throws:
NoClassDefFoundError
- if Apache'sLog
class was not found on the classpath.
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getImplementation
protected Logger getImplementation(String name)
Returns the implementation to use for the logger of the specified name, ornull
if the logger would delegates to Java logging anyway.- Specified by:
getImplementation
in classLoggerFactory<Logger>
- Parameters:
name
- The name of the logger.- Returns:
- The logger as an object of the target logging framework (Log4J, SLF4J,
etc.), or
null
if the target framework would redirect to the Java logging framework.
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wrap
protected Logger wrap(String name, Logger implementation)
Wraps the specified implementation in a Java logger.- Specified by:
wrap
in classLoggerFactory<Logger>
- Parameters:
name
- The name of the logger.implementation
- An implementation returned byLoggerFactory.getImplementation(java.lang.String)
.- Returns:
- A new logger wrapping the specified implementation.
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unwrap
protected Logger unwrap(Logger logger)
Returns the implementation wrapped by the specified logger, ornull
if none.- Specified by:
unwrap
in classLoggerFactory<Logger>
- Parameters:
logger
- The logger to test.- Returns:
- The implementation wrapped by the specified logger, or
null
if none.
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lookupConfiguration
public String lookupConfiguration()
Description copied from class:LoggerFactory
Look up configuration information, ornull
unknown.Report back details on how logging configuration is setup. Ideally including configuration filename along with any system properties used.
- Overrides:
lookupConfiguration
in classLoggerFactory<Logger>
- Returns:
- configuration information, or
null
unknown.
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