Package 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 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.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> 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,​ 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.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> 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.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • 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