Module flare.commons

Package flare.commons

Class FunctionalUtil

java.lang.Object

flare.commons.FunctionalUtil

public final class FunctionalUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FunctionalUtil.ExceptionalRunnable<E extends Exception>

Method Summary

Modifier and Type	Method	Description
static <T, P> Predicate<T>	distinct(Function<T,P> propertyExtractor, Consumer<T> dropHandler, Supplier<? extends Set<P>> setFactory)
static <T, P extends Enum<P>> Predicate<T>	distinctEnum(Function<T,P> propertyExtractor, Consumer<T> dropHandler, Class<P> enumType)
static float[]	filledArray(int length, float value)
static int[]	filledArray(int length, int value)
static <T> T	findNext(Queue<CompletableFuture<T>> queue, BooleanSupplier hasWork)
static <T> T	getRandom(List<T> list, RandomGenerator random)
static <T> T	getRandom(T[] array, RandomGenerator random)
static <T> Optional<T>	getRandomSafe(List<T> list, RandomGenerator random)
static <T> T	make(Supplier<T> supplier)
static <T> T	make(T instance, Consumer<T> consumer)
static <T extends Enum<T>> int	mapToBits(Collection<T> values, ToIntFunction<T> bitMapper)
static <T> Consumer<T>	noopConsumer()
static <V> CompletableFuture<List<V>>	sequenceFailFast(List<? extends CompletableFuture<? extends V>> futures)
static Runnable	uncheckException(FunctionalUtil.ExceptionalRunnable<? extends IOException> runnable)
static <E extends Exception> Runnable	uncheckException(Class<E> exceptionType, FunctionalUtil.ExceptionalRunnable<? extends E> runnable, Function<E,? extends RuntimeException> exceptionMapper)

Methods inherited from class java.lang.Object

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

Method Details

uncheckException

public static Runnable uncheckException(FunctionalUtil.ExceptionalRunnable<? extends IOException> runnable)

uncheckException

public static <E extends Exception> Runnable uncheckException(Class<E> exceptionType,
 FunctionalUtil.ExceptionalRunnable<? extends E> runnable,
 Function<E,? extends RuntimeException> exceptionMapper)

distinctEnum

public static <T,
P extends Enum<P>> Predicate<T> distinctEnum(Function<T,P> propertyExtractor,
 Consumer<T> dropHandler,
 Class<P> enumType)

distinct

public static <T,
P> Predicate<T> distinct(Function<T,P> propertyExtractor,
 Consumer<T> dropHandler,
 Supplier<? extends Set<P>> setFactory)

findNext

public static <T> T findNext(Queue<CompletableFuture<T>> queue,
 BooleanSupplier hasWork)

noopConsumer

public static <T> Consumer<T> noopConsumer()

mapToBits

public static <T extends Enum<T>> int mapToBits(Collection<T> values,
 ToIntFunction<T> bitMapper)

sequenceFailFast

public static <V> CompletableFuture<List<V>> sequenceFailFast(List<? extends CompletableFuture<? extends V>> futures)

make

public static <T> T make(Supplier<T> supplier)

make

public static <T> T make(T instance,
 Consumer<T> consumer)

filledArray

public static float[] filledArray(int length,
 float value)

filledArray

public static int[] filledArray(int length,
 int value)

getRandom

public static <T> T getRandom(List<T> list,
 RandomGenerator random)

getRandomSafe

public static <T> Optional<T> getRandomSafe(List<T> list,
 RandomGenerator random)

getRandom

public static <T> T getRandom(T[] array,
 RandomGenerator random)