fish.payara.microprofile.faulttolerance.policy

Class CircuitBreakerPolicy

java.lang.Object

fish.payara.microprofile.faulttolerance.policy.Policy

fish.payara.microprofile.faulttolerance.policy.CircuitBreakerPolicy

All Implemented Interfaces:

Serializable

public final class CircuitBreakerPolicy
extends Policy

The resolved "cached" information of a CircuitBreaker annotation an a specific method.

Author:

Jan Bernitt

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
long	delay
ChronoUnit	delayUnit
double	failureRatio
int	requestVolumeThreshold
int	successThreshold

Constructor Summary

Constructors

Constructor and Description
CircuitBreakerPolicy(Method annotatedMethod, Class<? extends Throwable>[] failOn, Class<? extends Throwable>[] skipOn, long delay, ChronoUnit delayUnit, int requestVolumeThreshold, double failureRatio, int successThreshold)

Method Summary

Modifier and Type	Method and Description
static CircuitBreakerPolicy	create(javax.interceptor.InvocationContext context, FaultToleranceConfig config)
boolean	isFailure(Throwable ex) Helper method that checks whether or not the given exception is considered a success or failure.

Methods inherited from class fish.payara.microprofile.faulttolerance.policy.Policy

checkAtLeast, checkAtLeast, checkAtLeast, checkAtMost, checkReturnsSameAs, checkReturnsSameAs, describe, isCaught

Methods inherited from class java.lang.Object

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

Field Detail

delay

public final long delay

delayUnit

public final ChronoUnit delayUnit

requestVolumeThreshold

public final int requestVolumeThreshold

failureRatio

public final double failureRatio

successThreshold

public final int successThreshold

Constructor Detail

CircuitBreakerPolicy

public CircuitBreakerPolicy(Method annotatedMethod,
                            Class<? extends Throwable>[] failOn,
                            Class<? extends Throwable>[] skipOn,
                            long delay,
                            ChronoUnit delayUnit,
                            int requestVolumeThreshold,
                            double failureRatio,
                            int successThreshold)

Method Detail

create

public static CircuitBreakerPolicy create(javax.interceptor.InvocationContext context,
                                          FaultToleranceConfig config)

isFailure

public boolean isFailure(Throwable ex)

Helper method that checks whether or not the given exception is considered a success or failure. Relevant part from the CircuitBreaker documentation:

When a method returns a result, the following rules are applied to determine whether the result is a success or a failure:

• If the method does not throw a Throwable, it is considered a success
• Otherwise, if the thrown object is assignable to any value in the #skipOn() parameter, is is considered a success
• Otherwise, if the thrown object is assignable to any value in the #failOn() parameter, it is considered a failure
• Otherwise it is considered a success

Parameters:

ex - The exception to check

Returns:

True if the exception is considered a failure, false if it is considered a success.