one.microstream.util.logging

Class Logging

java.lang.Object

one.microstream.util.logging.Logging

public final class Logging
extends Object

Static utility collection for various logging purposes.

Method Summary

Modifier and Type	Method and Description
static org.slf4j.Logger	getLogger(Class<?> clazz) Get the logging facade for a specific class.
static Function<Object,String>	getToStringConverter(Object context) Gets the Object to String converter for a specific context, or the DefaultToStringConverter() if none was specified before.
static Object	LazyArg(Object argument) Creates a lazy argument.
static Object	LazyArg(Supplier<?> supplier) Creates a lazy argument.
static Object	LazyArgInContext(Object context, Object argument) Creates a new lazy argument for a specific context, whose Object to String converter will be used.
static Object	LazyArgInContext(Object context, Supplier<?> supplier) Creates a new lazy argument for a specific context, whose Object to String converter will be used.
static Function<Object,String>	LimitedElementsToStringConverter(int limit) Creates a Object to String converter, which only includes a limited amount of elements in the resulting String, if Iterables or arrays are to be converted.
static Function<Object,String>	LimitedElementsToStringConverter(int limit, Function<Object,String> toStringConverter) Creates a Object to String converter, which only includes a limited amount of elements in the resulting String, if Iterables or arrays are to be converted.
static Function<Object,String>	LimitedElementsToStringConverter(ToIntFunction<Object> limitProvider, Function<Object,String> toStringConverter) Creates a Object to String converter, which only includes a limited amount of elements in the resulting String, if Iterables or arrays are to be converted.
static Function<Object,String>	setToStringConverter(Object context, Function<Object,String> converter) Registers an Object to String converter for a specific context.

Methods inherited from class java.lang.Object

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

Method Detail

getLogger

public static org.slf4j.Logger getLogger(Class<?> clazz)

Get the logging facade for a specific class.

Parameters:

clazz - the requesting context

Returns:

the logging facade

getToStringConverter

public static Function<Object,String> getToStringConverter(Object context)

Gets the Object to String converter for a specific context, or the DefaultToStringConverter() if none was specified before.

Parameters:

context - the requesting context

Returns:

an Object to String converter

setToStringConverter

public static Function<Object,String> setToStringConverter(Object context,
                                                           Function<Object,String> converter)

Registers an Object to String converter for a specific context.

Parameters:

context - the context to register the converter for

converter - the Object to String converter

Returns:

the old converter which was registered before, or null

LazyArgInContext

public static final Object LazyArgInContext(Object context,
                                            Object argument)

Creates a new lazy argument for a specific context, whose Object to String converter will be used. The lazy args' Object.toString() method is only called on demand.

Parameters:

context - the context to register the lazy arg for

argument - the argument

Returns:

the lazy object

LazyArgInContext

public static final Object LazyArgInContext(Object context,
                                            Supplier<?> supplier)

Creates a new lazy argument for a specific context, whose Object to String converter will be used. The lazy args' Object.toString() method is only called on demand.

Parameters:

context - the context to register the lazy arg for

supplier - the argument supplier

Returns:

the lazy object

LazyArg

public static final Object LazyArg(Object argument)

Creates a lazy argument. The lazy args' Object.toString() method is only called on demand.

Parameters:

argument - the argument

Returns:

the lazy argument

LazyArg

public static final Object LazyArg(Supplier<?> supplier)

Creates a lazy argument. The lazy args' Object.toString() method is only called on demand.

Parameters:

supplier - the argument supplier

Returns:

the lazy object

LimitedElementsToStringConverter

public static Function<Object,String> LimitedElementsToStringConverter(int limit)

Creates a Object to String converter, which only includes a limited amount of elements in the resulting String, if Iterables or arrays are to be converted.

For all other object's String.valueOf(Object) is used as converter.

For example, a List of Integers from 1 to 100, and a limit of 3, will result in a String like this:
"[1, 2, 3, ...]"

Parameters:

limit - maximum amount of converted elements in Iterables and arrays

Returns:

the new Object to String converter

LimitedElementsToStringConverter

public static Function<Object,String> LimitedElementsToStringConverter(int limit,
                                                                       Function<Object,String> toStringConverter)

Creates a Object to String converter, which only includes a limited amount of elements in the resulting String, if Iterables or arrays are to be converted.

For all other object's the supplied toStringConverter will be used.

For example, a List of Integers from 1 to 100, and a limit of 3, will result in a String like this:
"[1, 2, 3, ...]"

Parameters:

limit - maximum amount of converted elements in Iterables and arrays

toStringConverter - the converter for all other objects

Returns:

the new Object to String converter

LimitedElementsToStringConverter

public static Function<Object,String> LimitedElementsToStringConverter(ToIntFunction<Object> limitProvider,
                                                                       Function<Object,String> toStringConverter)

Creates a Object to String converter, which only includes a limited amount of elements in the resulting String, if Iterables or arrays are to be converted.

For all other object's the supplied toStringConverter will be used.

For example, a List of Integers from 1 to 100, and a limit of 3, will result in a String like this:
"[1, 2, 3, ...]"

Parameters:

limitProvider - provides maximum amount of converted elements in Iterables and arrays

toStringConverter - the converter for all other objects

Returns:

the new Object to String converter