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java.util.logging
Interface LoggingMXBean
-
public interface LoggingMXBean
The management interface for the logging facility.
There is a single global instance of the
LoggingMXBean
. This instance is an
MXBean
MXBean
can be obtained by calling the
LogManager.getLoggingMXBean()
method or from the
platform
MBeanServer
method.
The
ObjectName
ObjectName
for uniquely identifying the
LoggingMXBean
within an MBeanServer is:
java.util.logging:type=Logging
-
Since:
-
1.5
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See Also:
-
ManagementFactory
getLoggerNames
List<String> getLoggerNames()
-
Returns the list of currently registered loggers. This method calls
LogManager.getLoggerNames()
and returns a list of the logger names.
-
-
Returns:
-
A list of
String
each of which is a currently registered
Logger
name.
getLoggerLevel
String getLoggerLevel(String loggerName)
-
Gets the name of the log level associated with the specified logger. If the specified logger does not exist,
null
is returned. This method first finds the logger of the given name and then returns the name of the log level by calling:
Logger.getLevel()
.
getName()
;
If the
Level
of the specified logger is
null
, which means that this logger's effective level is inherited from its parent, an empty string will be returned.
-
-
Parameters:
-
loggerName - The name of the
Logger
to be retrieved.
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Returns:
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The name of the log level of the specified logger; or an empty string if the log level of the specified logger is
null
. If the specified logger does not exist,
null
is returned.
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See Also:
-
Logger.getLevel()
setLoggerLevel
void setLoggerLevel(String loggerName,
String levelName)
-
Sets the specified logger to the specified new level. If the
levelName
is not
null
, the level of the specified logger is set to the parsed
Level
matching the
levelName
. If the
levelName
is
null
, the level of the specified logger is set to
null
and the effective level of the logger is inherited from its nearest ancestor with a specific (non-null) level value.
-
-
Parameters:
-
loggerName - The name of the
Logger
to be set. Must be non-null.
-
levelName - The name of the level to set the specified logger to, or
null
if to set the level to inherit from its nearest ancestor.
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Throws:
-
IllegalArgumentException
- if the specified logger does not exist, or
levelName
is not a valid level name.
-
SecurityException
- if a security manager exists and if the caller does not have LoggingPermission("control").
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See Also:
-
Logger.setLevel(java.util.logging.Level)
getParentLoggerName
String getParentLoggerName(String loggerName)
-
Returns the name of the parent for the specified logger. If the specified logger does not exist,
null
is returned. If the specified logger is the root
Logger
in the namespace, the result will be an empty string.
-
-
Parameters:
-
loggerName - The name of a
Logger
.
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Returns:
-
the name of the nearest existing parent logger; an empty string if the specified logger is the root logger. If the specified logger does not exist,
null
is returned.