io.github.resilience4j.core

Class CallableUtils

java.lang.Object

io.github.resilience4j.core.CallableUtils

public class CallableUtils
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static <T,R> java.util.concurrent.Callable<R>	andThen(java.util.concurrent.Callable<T> callable, java.util.function.BiFunction<T,java.lang.Throwable,R> handler) Returns a composed function that first applies the Callable and then applies BiFunction after to the result.
static <T,R> java.util.concurrent.Callable<R>	andThen(java.util.concurrent.Callable<T> callable, java.util.function.Function<T,R> resultHandler) Returns a composed function that first applies the Callable and then applies the resultHandler.
static <T,R> java.util.concurrent.Callable<R>	andThen(java.util.concurrent.Callable<T> callable, java.util.function.Function<T,R> resultHandler, java.util.function.Function<java.lang.Throwable,R> exceptionHandler) Returns a composed function that first applies the Callable and then applies either the resultHandler or exceptionHandler.
static <X extends java.lang.Throwable,T> java.util.concurrent.Callable<T>	recover(java.util.concurrent.Callable<T> callable, java.lang.Class<X> exceptionType, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a composed function that first executes the Callable and optionally recovers from an exception.
static <T> java.util.concurrent.Callable<T>	recover(java.util.concurrent.Callable<T> callable, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a composed function that first executes the Callable and optionally recovers from an exception.
static <T> java.util.concurrent.Callable<T>	recover(java.util.concurrent.Callable<T> callable, java.util.List<java.lang.Class<? extends java.lang.Throwable>> exceptionTypes, java.util.function.Function<java.lang.Throwable,T> exceptionHandler) Returns a composed function that first executes the Callable and optionally recovers from an exception.
static <T> java.util.concurrent.Callable<T>	recover(java.util.concurrent.Callable<T> callable, java.util.function.Predicate<T> resultPredicate, java.util.function.UnaryOperator<T> resultHandler) Returns a composed Callable that first executes the Callable 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

andThen

public static <T,R> java.util.concurrent.Callable<R> andThen(java.util.concurrent.Callable<T> callable,
                                                             java.util.function.Function<T,R> resultHandler)

Returns a composed function that first applies the Callable and then applies the resultHandler.

Type Parameters:

T - return type of callable

R - return type of handler

Parameters:

callable - the callable

resultHandler - the function applied after callable

Returns:

a function composed of supplier and resultHandler

andThen

public static <T,R> java.util.concurrent.Callable<R> andThen(java.util.concurrent.Callable<T> callable,
                                                             java.util.function.BiFunction<T,java.lang.Throwable,R> handler)

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

Type Parameters:

T - return type of callable

R - return type of handler

Parameters:

callable - the callable

handler - the function applied after callable

Returns:

a function composed of supplier and handler

andThen

public static <T,R> java.util.concurrent.Callable<R> andThen(java.util.concurrent.Callable<T> callable,
                                                             java.util.function.Function<T,R> resultHandler,
                                                             java.util.function.Function<java.lang.Throwable,R> exceptionHandler)

Returns a composed function that first applies the Callable and then applies either the resultHandler or exceptionHandler.

Type Parameters:

T - return type of callable

R - return type of resultHandler and exceptionHandler

Parameters:

callable - the callable

resultHandler - the function applied after callable was successful

exceptionHandler - the function applied after callable has failed

Returns:

a function composed of supplier and handler

recover

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

Returns a composed function that first executes the Callable and optionally recovers from an exception.

Type Parameters:

T - return type of after

Parameters:

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

exceptionHandler - the exception handler

Returns:

a function composed of callable and exceptionHandler

recover

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

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

Type Parameters:

T - return type of after

Parameters:

callable - the callable

resultPredicate - the result predicate

resultHandler - the result handler

Returns:

a function composed of supplier and exceptionHandler

recover

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

Returns a composed function that first executes the Callable and optionally recovers from an exception.

Type Parameters:

T - return type of after

Parameters:

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

exceptionTypes - the specific exception types that should be recovered

exceptionHandler - the exception handler

Returns:

a function composed of supplier and exceptionHandler

recover

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

Returns a composed function that first executes the Callable and optionally recovers from an exception.

Type Parameters:

T - return type of after

Parameters:

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

exceptionType - the specific exception type that should be recovered

exceptionHandler - the exception handler

Returns:

a function composed of callable and exceptionHandler