Wrapping Resilience4j circuitbreaker around a service method with multiple arguments

Question

Resilience4j-circuitbreaker allows us to wrap a service using decorator functions, but from what I can tell it only allows functional interfaces such as Supplier, Consumer, and Function which accept at most 1 input.

If I have a service which has a method which accepts 2 arguments, how would i be able to wrap it with the circuitbreaker?

In https://www.baeldung.com/resilience4j:

interface RemoteService {
    int process(int i);
}

CircuitBreakerRegistry registry = CircuitBreakerRegistry.of(config);
CircuitBreaker circuitBreaker = registry.circuitBreaker("my");
Function<Integer, Integer> decorated = CircuitBreaker
  .decorateFunction(circuitBreaker, service::process);

If process(int i) was something like process(int i, String s), which decorator Function would be able to be used for this purpose?

score 3 · Answer 1 · answered May 15 '19 at 07:05

3

You could use CircuitBreaker.decorateCallable:

CircuitBreaker.decorateCallable(circuitBreaker, () -> service.process(i, s))

answered May 15 '19 at 07:05

Alexander Pankin

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23

Can you provide an example? I have a service that has two input arguments and return void. – stargazer Jun 04 '19 at 23:27
2

`CircuitBreaker.decorateRunnable(circuitBreaker, () -> yourMethcodCall(arg1, arg2));` – Alexander Pankin Jun 05 '19 at 07:17
Any idea how to use fallbacks with this? @AlexanderPankin – Saif Jul 29 '20 at 01:13

Wrapping Resilience4j circuitbreaker around a service method with multiple arguments

1 Answers1