Category : resilience4j

Order This paper mainly studies the basic functions of resilience4j maven <dependency> <groupId>io.github.resilience4j</groupId> <artifactId>resilience4j-circuitbreaker</artifactId> <version>0.13.0</version> </dependency> <dependency> <groupId>io.github.resilience4j</groupId> <artifactId>resilience4j-ratelimiter</artifactId> <version>0.13.0</version> </dependency> <dependency> <groupId>io.github.resilience4j</groupId> <artifactId>resilience4j-retry</artifactId> <version>0.13.0</version> </dependency> <dependency> <groupId>io.github.resilience4j</groupId> <artifactId>resilience4j-bulkhead</artifactId> <version>0.13.0</version> </dependency> <dependency> <groupId>io.github.resilience4j</groupId> <artifactId>resilience4j-circularbuffer</artifactId> <version>0.13.0</version> </dependency> <dependency> <groupId>io.github.resilience4j</groupId> <artifactId>resilience4j-timelimiter</artifactId> <version>0.13.0</version> </dependency> CircuitBreaker @Test public void testCircuitBreaker(){ // Create a CircuitBreaker (use default configuration) CircuitBreakerConfig circuitBreakerConfig ..

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Order This paper mainly studies CircuitBreakerConfig of resilience4j CircuitBreakerConfig resilience4j-circuitbreaker-0.13.0-sources.jar! /io/github/resilience4j/circuitbreaker/CircuitBreakerConfig.java /** * A {@link CircuitBreakerConfig} configures a {@link CircuitBreaker} */ public class CircuitBreakerConfig { public static final int DEFAULT_MAX_FAILURE_THRESHOLD = 50; // Percentage public static final int DEFAULT_WAIT_DURATION_IN_OPEN_STATE = 60; // Seconds public static final int DEFAULT_RING_BUFFER_SIZE_IN_HALF_OPEN_STATE = 10; public static final int DEFAULT_RING_BUFFER_SIZE_IN_CLOSED_STATE ..

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Order This article mainly studies CircuitBreaker of resilience4j. CircuitBreaker resilience4j-circuitbreaker-0.13.0-sources.jar! /io/github/resilience4j/circuitbreaker/CircuitBreaker.java /** * A CircuitBreaker instance is thread-safe can be used to decorate multiple requests. * * A {@link CircuitBreaker} manages the state of a backend system. * The CircuitBreaker is implemented via a finite state machine with three states: CLOSED, OPEN and HALF_OPEN. * ..

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Order This paper mainly studies the CircuitBreakerStateMachine of resilience4j CircuitBreakerStateMachine resilience4j-circuitbreaker-0.13.0-sources.jar! /io/github/resilience4j/circuitbreaker/internal/CircuitBreakerStateMachine.java /** * A CircuitBreaker finite state machine. */ public final class CircuitBreakerStateMachine implements CircuitBreaker { private static final Logger LOG = LoggerFactory.getLogger(CircuitBreakerStateMachine.class); private final String name; private final AtomicReference<CircuitBreakerState> stateReference; private final CircuitBreakerConfig circuitBreakerConfig; private final CircuitBreakerEventProcessor eventProcessor; /** * Creates a circuitBreaker. ..

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Order This paper mainly studies bulkhead of resilience4j Bulkhead resilience4j-bulkhead-0.13.0-sources.jar! /io/github/resilience4j/bulkhead/Bulkhead.java /** * A Bulkhead instance is thread-safe can be used to decorate multiple requests. * * A {@link Bulkhead} represent an entity limiting the amount of parallel operations. It does not assume nor does it mandate usage * of any particular concurrency and/or io ..

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Order This paper mainly studies the Retry of resilience4j Retry resilience4j-retry-0.13.0-sources.jar! /io/github/resilience4j/retry/Retry.java /** * A Retry instance is thread-safe can be used to decorate multiple requests. * A Retry. */ public interface Retry { /** * Returns the ID of this Retry. * * @return the ID of this Retry */ String getName(); /** * ..

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Order This article mainly studies the fallback of resilience4j Use instance @Test public void testFallback(){ // Execute the decorated supplier and recover from any exception String result = Try.ofSupplier(() -> backendService.doSomethingThrowException()) .recover(throwable -> “Hello from Recovery”).get(); System.out.println(result); } Try vavr-0.9.2-sources.jar! /io/vavr/control/Try.java /** * The Try control gives us the ability write safe code without focusing ..

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