Package de.mnl.osgi.lf4osgi.core

Class DefaultLoggerGroup<T>

java.lang.Object

de.mnl.osgi.lf4osgi.core.DefaultLoggerGroup<T>

Type Parameters:

T - the type of the loggers in the group

All Implemented Interfaces:

LoggerGroup

public class DefaultLoggerGroup<T>
extends Object
implements LoggerGroup

A simple cache for loggers used by a bundle.

Constructor Summary

Constructors

Constructor	Description
DefaultLoggerGroup(Bundle bundle, BiFunction<LoggerGroup,String,T> loggerSupplier)	Instantiates a new bundle group.

Method Summary

Modifier and Type	Method	Description
T	computeIfAbsent(String name)	Gets the logger with the specified name.If it is not already in this group, create it using the default supplier.
T	computeIfAbsent(String name, BiFunction<LoggerGroup,String,T> supplier)	Gets the logger with the specified name.
Bundle	getBundle()	Returns the bundle that this group is associated with.
boolean	hasLogger(String name)	Checks if the logger with the provided name already exists.
Optional<T>	logger(String name)	Gets the logger if it exists.
void	putIfAbsent(String name, T logger)	Put the logger in the group if it isn't already known.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultLoggerGroup

public DefaultLoggerGroup(Bundle bundle,
                          BiFunction<LoggerGroup,String,T> loggerSupplier)

Instantiates a new bundle group.

Parameters:

bundle - the bundle

loggerSupplier - the default logger supplier used by computeIfAbsent(String)

Method Detail

getBundle

public final Bundle getBundle()

Returns the bundle that this group is associated with.

Specified by:

getBundle in interface LoggerGroup

Returns:

the bundle

hasLogger

public boolean hasLogger(String name)

Checks if the logger with the provided name already exists.

Parameters:

name - the name

Returns:

true, if successful

logger

public Optional<T> logger(String name)

Gets the logger if it exists.

Parameters:

name - the name

Returns:

the logger

computeIfAbsent

public T computeIfAbsent(String name,
                         BiFunction<LoggerGroup,String,T> supplier)

Gets the logger with the specified name. If it is not already in this group, create it using the provided supplier.

Parameters:

name - the name

supplier - the supplier

Returns:

the logger

computeIfAbsent

public T computeIfAbsent(String name)

Gets the logger with the specified name.If it is not already in this group, create it using the default supplier.

Parameters:

name - the name

Returns:

the logger

putIfAbsent

public void putIfAbsent(String name,
                        T logger)

Put the logger in the group if it isn't already known.

Parameters:

name - the name

logger - the logger