Package org.forgerock.openig.util

Class PredicateUtil

java.lang.Object

org.forgerock.openig.util.PredicateUtil

public final class PredicateUtil
extends Object

Utility class for Predicate.

Method Summary

Modifier and Type	Method	Description
static <T> Predicate<T>	andLog(Predicate<T> predicate, Consumer<org.slf4j.Logger> loggerAction)	A method that tests a Predicate and perform the given Consumer's action on the class logger if the Predicate test returns false.

Methods inherited from class java.lang.Object

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

Method Detail

andLog

public static <T> Predicate<T> andLog(Predicate<T> predicate,
                                      Consumer<org.slf4j.Logger> loggerAction)

A method that tests a Predicate and perform the given Consumer's action on the class logger if the Predicate test returns false. Can be used to log messages when filtering on an Optional.

Example:

 .filter(andLog(p -> !p.isUnlimited(), logger -> logger.warn("message)))
 

Type Parameters:

T - The type of the predicate.

Parameters:

predicate - The Predicate to test.

loggerAction - The Consumer action to accept if the previous predicate is false to display the message on the current logger.

Returns:

The Predicate result.