Package org.springframework.core.log
Class LogDelegateFactory
- java.lang.Object
- org.springframework.core.log.LogDelegateFactory
public final class LogDelegateFactory extends Object
Factory for commonLog
delegates with Spring's logging conventions.Mainly for internal use within the framework with Apache Commons Logging, typically in the form of the
spring-jcl
bridge but also compatible with other Commons Logging bridges.- Since:
- 5.1
- Author:
- Rossen Stoyanchev, Juergen Hoeller
- See Also:
LogFactory
Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static Log
getCompositeLog(Log primaryLogger, Log secondaryLogger, Log... tertiaryLoggers)
Create a composite logger that delegates to a primary or falls back on a secondary logger if logging for the primary logger is not enabled.static Log
getHiddenLog(Class<?> clazz)
Create a "hidden" logger whose name is intentionally prefixed with "_" because its output is either too verbose or otherwise deemed as optional or unnecessary to see at any log level by default under the normal package based log hierarchy.
Method Detail
getCompositeLog
public static Log getCompositeLog(Log primaryLogger, Log secondaryLogger, Log... tertiaryLoggers)
Create a composite logger that delegates to a primary or falls back on a secondary logger if logging for the primary logger is not enabled.This may be used for fallback logging from lower-level packages that logically should log together with some higher-level package but the two don't happen to share a suitable parent package (e.g. logging for the web and lower-level http and codec packages). For such cases the primary (class-based) logger can be wrapped with a shared fallback logger.
- Parameters:
primaryLogger
- primary logger to try firstsecondaryLogger
- secondary loggertertiaryLoggers
- optional vararg of further fallback loggers- Returns:
- the resulting composite logger for the related categories
getHiddenLog
public static Log getHiddenLog(Class<?> clazz)
Create a "hidden" logger whose name is intentionally prefixed with "_" because its output is either too verbose or otherwise deemed as optional or unnecessary to see at any log level by default under the normal package based log hierarchy.- Parameters:
clazz
- the class for which to create a logger- Returns:
- a logger for the hidden category ("_" + fully-qualified class name)