io.github.resilience4j.core

Class CompletionStageUtils

java.lang.Object

io.github.resilience4j.core.CompletionStageUtils

public class CompletionStageUtils
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static <T,R> java.util.function.Supplier<java.util.concurrent.CompletionStage<R>>	andThen(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier, java.util.function.BiFunction<T,java.lang.Throwable,R> handler) Returns a composed CompletionStage that first applies the CompletionStage and then applies BiFunction after to the result.
static <X extends java.lang.Throwable,T> java.util.concurrent.CompletionStage<T>	recover(java.util.concurrent.CompletionStage<T> completionStage, java.lang.Class<X> exceptionType, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a CompletionStage that is recovered from a specific exception.
static <T> java.util.concurrent.CompletionStage<T>	recover(java.util.concurrent.CompletionStage<T> completionStage, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a CompletionStage that is recovered from any exception.
static <T> java.util.concurrent.CompletionStage<T>	recover(java.util.concurrent.CompletionStage<T> completionStage, java.util.List<java.lang.Class<? extends java.lang.Throwable>> exceptionTypes, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a CompletionStage that is recovered from a specific exception.
static <T> java.util.concurrent.CompletionStage<T>	recover(java.util.concurrent.CompletionStage<T> completionStage, java.util.function.Predicate<T> resultPredicate, java.util.function.UnaryOperator<T> resultHandler) Returns a composed CompletionStage that first executes the CompletionStage and optionally recovers from a specific result.
static <T,X extends java.lang.Throwable> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>>	recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier, java.lang.Class<X> exceptionType, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a decorated CompletionStage that is recovered from a specific exception.
static <T> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>>	recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a decorated CompletionStage that is recovered from a specific exception.
static <T> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>>	recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier, java.util.List<java.lang.Class<? extends java.lang.Throwable>> exceptionTypes, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a decorated CompletionStage that is recovered from a specific exception.
static <T> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>>	recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier, java.util.function.Predicate<T> resultPredicate, java.util.function.UnaryOperator<T> resultHandler) Returns a composed CompletionStage that first executes the CompletionStage and optionally recovers from a specific result.

Methods inherited from class java.lang.Object

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

Method Detail

recover

public static <T> java.util.concurrent.CompletionStage<T> recover(java.util.concurrent.CompletionStage<T> completionStage,
                                                                  java.util.function.Function<java.lang.Throwable,T> exceptionHandler)

Returns a CompletionStage that is recovered from any exception.

Parameters:

completionStage - the completionStage which should be recovered from any exception

exceptionHandler - the function applied after callable has failed

Returns:

a CompletionStage that is recovered from any exception.

recover

public static <T> java.util.concurrent.CompletionStage<T> recover(java.util.concurrent.CompletionStage<T> completionStage,
                                                                  java.util.List<java.lang.Class<? extends java.lang.Throwable>> exceptionTypes,
                                                                  java.util.function.Function<java.lang.Throwable,T> exceptionHandler)

Returns a CompletionStage that is recovered from a specific exception.

Parameters:

completionStage - the completionStage which should be recovered from a certain exception

exceptionTypes - the specific exception types that should be recovered

exceptionHandler - the function applied after callable has failed

Returns:

a CompletionStage that is recovered from a specific exception.

recover

public static <X extends java.lang.Throwable,T> java.util.concurrent.CompletionStage<T> recover(java.util.concurrent.CompletionStage<T> completionStage,
                                                                                                java.lang.Class<X> exceptionType,
                                                                                                java.util.function.Function<java.lang.Throwable,T> exceptionHandler)

Returns a CompletionStage that is recovered from a specific exception.

Parameters:

completionStage - the completionStage which should be recovered from a certain exception

exceptionType - the specific exception type that should be recovered

exceptionHandler - the function applied after callable has failed

Returns:

a CompletionStage that is recovered from a specific exception.

recover

public static <T> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier,
                                                                                               java.util.function.Function<java.lang.Throwable,T> exceptionHandler)

Returns a decorated CompletionStage that is recovered from a specific exception.

Parameters:

completionStageSupplier - a supplier of the completionStage which should be recovered from a certain exception

exceptionHandler - the function applied after callable has failed

Returns:

a CompletionStage that is recovered from a specific exception.

recover

public static <T,X extends java.lang.Throwable> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier,
                                                                                                                             java.lang.Class<X> exceptionType,
                                                                                                                             java.util.function.Function<java.lang.Throwable,T> exceptionHandler)

Returns a decorated CompletionStage that is recovered from a specific exception.

Parameters:

completionStageSupplier - a supplier of the completionStage which should be recovered from a certain exception

exceptionType - the specific exception type that should be recovered

exceptionHandler - the function applied after callable has failed

Returns:

a CompletionStage that is recovered from a specific exception.

recover

public static <T> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier,
                                                                                               java.util.List<java.lang.Class<? extends java.lang.Throwable>> exceptionTypes,
                                                                                               java.util.function.Function<java.lang.Throwable,T> exceptionHandler)

Returns a decorated CompletionStage that is recovered from a specific exception.

Parameters:

completionStageSupplier - a supplier of the completionStage which should be recovered from a certain exception

exceptionTypes - the specific exception types that should be recovered

exceptionHandler - the function applied after callable has failed

Returns:

a CompletionStage that is recovered from a specific exception.

recover

public static <T> java.util.concurrent.CompletionStage<T> recover(java.util.concurrent.CompletionStage<T> completionStage,
                                                                  java.util.function.Predicate<T> resultPredicate,
                                                                  java.util.function.UnaryOperator<T> resultHandler)

Returns a composed CompletionStage that first executes the CompletionStage and optionally recovers from a specific result.

Type Parameters:

T - return type of after

Parameters:

completionStage - the completionStage which should be recovered from a certain exception

resultPredicate - the result predicate

resultHandler - the result handler

Returns:

a function composed of supplier and exceptionHandler

recover

public static <T> java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> recover(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier,
                                                                                               java.util.function.Predicate<T> resultPredicate,
                                                                                               java.util.function.UnaryOperator<T> resultHandler)

Returns a composed CompletionStage that first executes the CompletionStage and optionally recovers from a specific result.

Type Parameters:

T - return type of after

Parameters:

completionStageSupplier - the CompletionStage supplier

resultPredicate - the result predicate

resultHandler - the result handler

Returns:

a function composed of supplier and exceptionHandler

andThen

public static <T,R> java.util.function.Supplier<java.util.concurrent.CompletionStage<R>> andThen(java.util.function.Supplier<java.util.concurrent.CompletionStage<T>> completionStageSupplier,
                                                                                                 java.util.function.BiFunction<T,java.lang.Throwable,R> handler)

Returns a composed CompletionStage that first applies the CompletionStage and then applies BiFunction after to the result.

Type Parameters:

T - return type of after

Parameters:

completionStageSupplier - the CompletionStage supplier

handler - the function applied after supplier

Returns:

a function composed of supplier and handler