Introduce @ConcurrencyLimit annotation based on ConcurrencyThrottleInterceptor

Moves @Retryable infrastructure to resilience package in spring-context module.
Includes duration parsing and placeholder resolution for @Retryable attributes.
Provides convenient @EnableResilientMethods for @Retryable + @ConcurrencyLimit.

Closes gh-35133
See gh-34529
This commit is contained in:
Juergen Hoeller
2025-07-01 17:27:50 +02:00
parent 3ce7613195
commit c9078bfe14
23 changed files with 1114 additions and 407 deletions
@@ -0,0 +1,188 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.resilience;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.jupiter.api.Test;
import org.springframework.aop.framework.AopProxyUtils;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.interceptor.ConcurrencyThrottleInterceptor;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.resilience.annotation.ConcurrencyLimit;
import org.springframework.resilience.annotation.ConcurrencyLimitBeanPostProcessor;
import static org.assertj.core.api.Assertions.assertThat;
/**
* @author Juergen Hoeller
* @since 7.0
*/
public class ConcurrencyLimitTests {
@Test
void withSimpleInterceptor() {
NonAnnotatedBean target = new NonAnnotatedBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new ConcurrencyThrottleInterceptor(2));
NonAnnotatedBean proxy = (NonAnnotatedBean) pf.getProxy();
List<CompletableFuture<?>> futures = new ArrayList<>(10);
for (int i = 0; i < 10; i++) {
futures.add(CompletableFuture.runAsync(proxy::concurrentOperation));
}
CompletableFuture.allOf(futures.toArray(new CompletableFuture[0])).join();
assertThat(target.counter).hasValue(0);
}
@Test
void withPostProcessorForMethod() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
bf.registerBeanDefinition("bean", new RootBeanDefinition(AnnotatedMethodBean.class));
ConcurrencyLimitBeanPostProcessor bpp = new ConcurrencyLimitBeanPostProcessor();
bpp.setBeanFactory(bf);
bf.addBeanPostProcessor(bpp);
AnnotatedMethodBean proxy = bf.getBean(AnnotatedMethodBean.class);
AnnotatedMethodBean target = (AnnotatedMethodBean) AopProxyUtils.getSingletonTarget(proxy);
List<CompletableFuture<?>> futures = new ArrayList<>(10);
for (int i = 0; i < 10; i++) {
futures.add(CompletableFuture.runAsync(proxy::concurrentOperation));
}
CompletableFuture.allOf(futures.toArray(new CompletableFuture[0])).join();
assertThat(target.current).hasValue(0);
}
@Test
void withPostProcessorForClass() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
bf.registerBeanDefinition("bean", new RootBeanDefinition(AnnotatedClassBean.class));
ConcurrencyLimitBeanPostProcessor bpp = new ConcurrencyLimitBeanPostProcessor();
bpp.setBeanFactory(bf);
bf.addBeanPostProcessor(bpp);
AnnotatedClassBean proxy = bf.getBean(AnnotatedClassBean.class);
AnnotatedClassBean target = (AnnotatedClassBean) AopProxyUtils.getSingletonTarget(proxy);
List<CompletableFuture<?>> futures = new ArrayList<>(30);
for (int i = 0; i < 10; i++) {
futures.add(CompletableFuture.runAsync(proxy::concurrentOperation));
}
for (int i = 0; i < 10; i++) {
futures.add(CompletableFuture.runAsync(proxy::otherOperation));
}
for (int i = 0; i < 10; i++) {
futures.add(CompletableFuture.runAsync(proxy::overrideOperation));
}
CompletableFuture.allOf(futures.toArray(new CompletableFuture[0])).join();
assertThat(target.current).hasValue(0);
}
public static class NonAnnotatedBean {
AtomicInteger counter = new AtomicInteger();
public void concurrentOperation() {
if (counter.incrementAndGet() > 2) {
throw new IllegalStateException();
}
try {
Thread.sleep(100);
}
catch (InterruptedException ex) {
throw new IllegalStateException(ex);
}
counter.decrementAndGet();
}
}
public static class AnnotatedMethodBean {
AtomicInteger current = new AtomicInteger();
@ConcurrencyLimit(2)
public void concurrentOperation() {
if (current.incrementAndGet() > 2) {
throw new IllegalStateException();
}
try {
Thread.sleep(100);
}
catch (InterruptedException ex) {
throw new IllegalStateException(ex);
}
current.decrementAndGet();
}
}
@ConcurrencyLimit(2)
public static class AnnotatedClassBean {
AtomicInteger current = new AtomicInteger();
AtomicInteger currentOverride = new AtomicInteger();
public void concurrentOperation() {
if (current.incrementAndGet() > 2) {
throw new IllegalStateException();
}
try {
Thread.sleep(100);
}
catch (InterruptedException ex) {
throw new IllegalStateException(ex);
}
current.decrementAndGet();
}
public void otherOperation() {
if (current.incrementAndGet() > 2) {
throw new IllegalStateException();
}
try {
Thread.sleep(100);
}
catch (InterruptedException ex) {
throw new IllegalStateException(ex);
}
current.decrementAndGet();
}
@ConcurrencyLimit(1)
public void overrideOperation() {
if (currentOverride.incrementAndGet() > 1) {
throw new IllegalStateException();
}
try {
Thread.sleep(100);
}
catch (InterruptedException ex) {
throw new IllegalStateException(ex);
}
currentOverride.decrementAndGet();
}
}
}
@@ -0,0 +1,338 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.resilience;
import java.io.IOException;
import java.lang.reflect.Method;
import java.nio.file.AccessDeniedException;
import java.time.Duration;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import org.springframework.aop.framework.AopProxyUtils;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.resilience.annotation.RetryAnnotationBeanPostProcessor;
import org.springframework.resilience.annotation.Retryable;
import org.springframework.resilience.retry.MethodRetryPredicate;
import org.springframework.resilience.retry.MethodRetrySpec;
import org.springframework.resilience.retry.SimpleRetryInterceptor;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
import static org.assertj.core.api.Assertions.assertThatRuntimeException;
/**
* @author Juergen Hoeller
* @since 7.0
*/
public class ReactiveRetryInterceptorTests {
@Test
void withSimpleInterceptor() {
NonAnnotatedBean target = new NonAnnotatedBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 5, Duration.ofMillis(10))));
NonAnnotatedBean proxy = (NonAnnotatedBean) pf.getProxy();
assertThatIllegalStateException().isThrownBy(() -> proxy.retryOperation().block())
.withCauseInstanceOf(IOException.class).havingCause().withMessage("6");
assertThat(target.counter.get()).isEqualTo(6);
}
@Test
void withPostProcessorForMethod() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
bf.registerBeanDefinition("bean", new RootBeanDefinition(AnnotatedMethodBean.class));
RetryAnnotationBeanPostProcessor bpp = new RetryAnnotationBeanPostProcessor();
bpp.setBeanFactory(bf);
bf.addBeanPostProcessor(bpp);
AnnotatedMethodBean proxy = bf.getBean(AnnotatedMethodBean.class);
AnnotatedMethodBean target = (AnnotatedMethodBean) AopProxyUtils.getSingletonTarget(proxy);
assertThatIllegalStateException().isThrownBy(() -> proxy.retryOperation().block())
.withCauseInstanceOf(IOException.class).havingCause().withMessage("6");
assertThat(target.counter.get()).isEqualTo(6);
}
@Test
void withPostProcessorForClass() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
bf.registerBeanDefinition("bean", new RootBeanDefinition(AnnotatedClassBean.class));
RetryAnnotationBeanPostProcessor bpp = new RetryAnnotationBeanPostProcessor();
bpp.setBeanFactory(bf);
bf.addBeanPostProcessor(bpp);
AnnotatedClassBean proxy = bf.getBean(AnnotatedClassBean.class);
AnnotatedClassBean target = (AnnotatedClassBean) AopProxyUtils.getSingletonTarget(proxy);
assertThatRuntimeException().isThrownBy(() -> proxy.retryOperation().block())
.withCauseInstanceOf(IOException.class).havingCause().withMessage("3");
assertThat(target.counter.get()).isEqualTo(3);
assertThatRuntimeException().isThrownBy(() -> proxy.otherOperation().block())
.withCauseInstanceOf(IOException.class);
assertThat(target.counter.get()).isEqualTo(4);
assertThatIllegalStateException().isThrownBy(() -> proxy.overrideOperation().blockFirst())
.withCauseInstanceOf(IOException.class);
assertThat(target.counter.get()).isEqualTo(6);
}
@Test
void adaptReactiveResultWithMinimalRetrySpec() {
// Test minimal retry configuration: maxAttempts=1, delay=0, jitter=0, multiplier=1.0, maxDelay=0
MinimalRetryBean target = new MinimalRetryBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 1, Duration.ZERO, Duration.ZERO, 1.0, Duration.ZERO)));
MinimalRetryBean proxy = (MinimalRetryBean) pf.getProxy();
// Should execute only 2 times, because maxAttempts=1 means 1 call + 1 retry
assertThatIllegalStateException().isThrownBy(() -> proxy.retryOperation().block())
.withCauseInstanceOf(IOException.class).havingCause().withMessage("2");
assertThat(target.counter.get()).isEqualTo(2);
}
@Test
void adaptReactiveResultWithZeroDelayAndJitter() {
// Test case where delay=0 and jitter>0
ZeroDelayJitterBean target = new ZeroDelayJitterBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 3, Duration.ZERO, Duration.ofMillis(10), 2.0, Duration.ofMillis(100))));
ZeroDelayJitterBean proxy = (ZeroDelayJitterBean) pf.getProxy();
assertThatIllegalStateException().isThrownBy(() -> proxy.retryOperation().block())
.withCauseInstanceOf(IOException.class).havingCause().withMessage("4");
assertThat(target.counter.get()).isEqualTo(4);
}
@Test
void adaptReactiveResultWithJitterGreaterThanDelay() {
// Test case where jitter > delay
JitterGreaterThanDelayBean target = new JitterGreaterThanDelayBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 3, Duration.ofMillis(5), Duration.ofMillis(20), 1.5, Duration.ofMillis(50))));
JitterGreaterThanDelayBean proxy = (JitterGreaterThanDelayBean) pf.getProxy();
assertThatIllegalStateException().isThrownBy(() -> proxy.retryOperation().block())
.withCauseInstanceOf(IOException.class).havingCause().withMessage("4");
assertThat(target.counter.get()).isEqualTo(4);
}
@Test
void adaptReactiveResultWithFluxMultiValue() {
// Test Flux multi-value stream case
FluxMultiValueBean target = new FluxMultiValueBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 3, Duration.ofMillis(10), Duration.ofMillis(5), 2.0, Duration.ofMillis(100))));
FluxMultiValueBean proxy = (FluxMultiValueBean) pf.getProxy();
assertThatIllegalStateException().isThrownBy(() -> proxy.retryOperation().blockFirst())
.withCauseInstanceOf(IOException.class).havingCause().withMessage("4");
assertThat(target.counter.get()).isEqualTo(4);
}
@Test
void adaptReactiveResultWithSuccessfulOperation() {
// Test successful return case, ensuring retry mechanism doesn't activate
SuccessfulOperationBean target = new SuccessfulOperationBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 5, Duration.ofMillis(10), Duration.ofMillis(5), 2.0, Duration.ofMillis(100))));
SuccessfulOperationBean proxy = (SuccessfulOperationBean) pf.getProxy();
String result = proxy.retryOperation().block();
assertThat(result).isEqualTo("success");
// Should execute only once because of successful return
assertThat(target.counter.get()).isEqualTo(1);
}
@Test
void adaptReactiveResultWithImmediateFailure() {
// Test immediate failure case
ImmediateFailureBean target = new ImmediateFailureBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 3, Duration.ofMillis(10), Duration.ofMillis(5), 1.5, Duration.ofMillis(50))));
ImmediateFailureBean proxy = (ImmediateFailureBean) pf.getProxy();
assertThatIllegalStateException().isThrownBy(() -> proxy.retryOperation().block())
.withCauseInstanceOf(RuntimeException.class).havingCause().withMessage("immediate failure");
assertThat(target.counter.get()).isEqualTo(4);
}
public static class NonAnnotatedBean {
AtomicInteger counter = new AtomicInteger();
public Mono<Object> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new IOException(counter.toString());
});
}
}
public static class AnnotatedMethodBean {
AtomicInteger counter = new AtomicInteger();
@Retryable(maxAttempts = 5, delay = 10)
public Mono<Object> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new IOException(counter.toString());
});
}
}
@Retryable(delay = 10, jitter = 5, multiplier = 2.0, maxDelay = 40,
includes = IOException.class, excludes = AccessDeniedException.class,
predicate = CustomPredicate.class)
public static class AnnotatedClassBean {
AtomicInteger counter = new AtomicInteger();
public Mono<Object> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new IOException(counter.toString());
});
}
public Mono<Object> otherOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new AccessDeniedException(counter.toString());
});
}
@Retryable(value = IOException.class, maxAttempts = 1, delay = 10)
public Flux<Object> overrideOperation() {
return Flux.from(Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new AccessDeniedException(counter.toString());
}));
}
}
private static class CustomPredicate implements MethodRetryPredicate {
@Override
public boolean shouldRetry(Method method, Throwable throwable) {
return !"3".equals(throwable.getMessage());
}
}
// Bean classes for boundary testing
public static class MinimalRetryBean {
AtomicInteger counter = new AtomicInteger();
public Mono<Object> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new IOException(counter.toString());
});
}
}
public static class ZeroDelayJitterBean {
AtomicInteger counter = new AtomicInteger();
public Mono<Object> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new IOException(counter.toString());
});
}
}
public static class JitterGreaterThanDelayBean {
AtomicInteger counter = new AtomicInteger();
public Mono<Object> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new IOException(counter.toString());
});
}
}
public static class FluxMultiValueBean {
AtomicInteger counter = new AtomicInteger();
public Flux<Object> retryOperation() {
return Flux.from(Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new IOException(counter.toString());
}));
}
}
public static class SuccessfulOperationBean {
AtomicInteger counter = new AtomicInteger();
public Mono<String> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
return "success";
});
}
}
public static class ImmediateFailureBean {
AtomicInteger counter = new AtomicInteger();
public Mono<Object> retryOperation() {
return Mono.fromCallable(() -> {
counter.incrementAndGet();
throw new RuntimeException("immediate failure");
});
}
}
}
@@ -0,0 +1,254 @@
/*
* Copyright 2002-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.resilience;
import java.io.IOException;
import java.lang.reflect.Method;
import java.nio.file.AccessDeniedException;
import java.time.Duration;
import java.util.Properties;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.jupiter.api.Test;
import org.springframework.aop.framework.AopProxyUtils;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.core.env.PropertiesPropertySource;
import org.springframework.resilience.annotation.ConcurrencyLimit;
import org.springframework.resilience.annotation.EnableResilientMethods;
import org.springframework.resilience.annotation.RetryAnnotationBeanPostProcessor;
import org.springframework.resilience.annotation.Retryable;
import org.springframework.resilience.retry.MethodRetryPredicate;
import org.springframework.resilience.retry.MethodRetrySpec;
import org.springframework.resilience.retry.SimpleRetryInterceptor;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIOException;
/**
* @author Juergen Hoeller
* @since 7.0
*/
public class RetryInterceptorTests {
@Test
void withSimpleInterceptor() {
NonAnnotatedBean target = new NonAnnotatedBean();
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvice(new SimpleRetryInterceptor(
new MethodRetrySpec((m, t) -> true, 5, Duration.ofMillis(10))));
NonAnnotatedBean proxy = (NonAnnotatedBean) pf.getProxy();
assertThatIOException().isThrownBy(proxy::retryOperation).withMessage("6");
assertThat(target.counter).isEqualTo(6);
}
@Test
void withPostProcessorForMethod() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
bf.registerBeanDefinition("bean", new RootBeanDefinition(AnnotatedMethodBean.class));
RetryAnnotationBeanPostProcessor bpp = new RetryAnnotationBeanPostProcessor();
bpp.setBeanFactory(bf);
bf.addBeanPostProcessor(bpp);
AnnotatedMethodBean proxy = bf.getBean(AnnotatedMethodBean.class);
AnnotatedMethodBean target = (AnnotatedMethodBean) AopProxyUtils.getSingletonTarget(proxy);
assertThatIOException().isThrownBy(proxy::retryOperation).withMessage("6");
assertThat(target.counter).isEqualTo(6);
}
@Test
void withPostProcessorForClass() {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
bf.registerBeanDefinition("bean", new RootBeanDefinition(AnnotatedClassBean.class));
RetryAnnotationBeanPostProcessor bpp = new RetryAnnotationBeanPostProcessor();
bpp.setBeanFactory(bf);
bf.addBeanPostProcessor(bpp);
AnnotatedClassBean proxy = bf.getBean(AnnotatedClassBean.class);
AnnotatedClassBean target = (AnnotatedClassBean) AopProxyUtils.getSingletonTarget(proxy);
assertThatIOException().isThrownBy(proxy::retryOperation).withMessage("3");
assertThat(target.counter).isEqualTo(3);
assertThatIOException().isThrownBy(proxy::otherOperation);
assertThat(target.counter).isEqualTo(4);
assertThatIOException().isThrownBy(proxy::overrideOperation);
assertThat(target.counter).isEqualTo(6);
}
@Test
void withPostProcessorForClassWithStrings() {
Properties props = new Properties();
props.setProperty("delay", "10");
props.setProperty("jitter", "5");
props.setProperty("multiplier", "2.0");
props.setProperty("maxDelay", "40");
props.setProperty("limitedAttempts", "1");
GenericApplicationContext ctx = new GenericApplicationContext();
ctx.getEnvironment().getPropertySources().addFirst(new PropertiesPropertySource("props", props));
ctx.registerBeanDefinition("bean", new RootBeanDefinition(AnnotatedClassBeanWithStrings.class));
ctx.registerBeanDefinition("bpp", new RootBeanDefinition(RetryAnnotationBeanPostProcessor.class));
ctx.refresh();
AnnotatedClassBeanWithStrings proxy = ctx.getBean(AnnotatedClassBeanWithStrings.class);
AnnotatedClassBeanWithStrings target = (AnnotatedClassBeanWithStrings) AopProxyUtils.getSingletonTarget(proxy);
assertThatIOException().isThrownBy(proxy::retryOperation).withMessage("3");
assertThat(target.counter).isEqualTo(3);
assertThatIOException().isThrownBy(proxy::otherOperation);
assertThat(target.counter).isEqualTo(4);
assertThatIOException().isThrownBy(proxy::overrideOperation);
assertThat(target.counter).isEqualTo(6);
}
@Test
void withEnableAnnotation() throws Exception {
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
ctx.registerBeanDefinition("bean", new RootBeanDefinition(DoubleAnnotatedBean.class));
ctx.registerBeanDefinition("config", new RootBeanDefinition(EnablingConfig.class));
ctx.refresh();
DoubleAnnotatedBean proxy = ctx.getBean(DoubleAnnotatedBean.class);
DoubleAnnotatedBean target = (DoubleAnnotatedBean) AopProxyUtils.getSingletonTarget(proxy);
Thread thread = new Thread(() -> assertThatIOException().isThrownBy(proxy::retryOperation));
thread.start();
assertThatIOException().isThrownBy(proxy::retryOperation);
thread.join();
assertThat(target.counter).hasValue(6);
assertThat(target.threadChange).hasValue(2);
}
public static class NonAnnotatedBean {
int counter = 0;
public void retryOperation() throws IOException {
counter++;
throw new IOException(Integer.toString(counter));
}
}
public static class AnnotatedMethodBean {
int counter = 0;
@Retryable(maxAttempts = 5, delay = 10)
public void retryOperation() throws IOException {
counter++;
throw new IOException(Integer.toString(counter));
}
}
@Retryable(delay = 10, jitter = 5, multiplier = 2.0, maxDelay = 40,
includes = IOException.class, excludes = AccessDeniedException.class,
predicate = CustomPredicate.class)
public static class AnnotatedClassBean {
int counter = 0;
public void retryOperation() throws IOException {
counter++;
throw new IOException(Integer.toString(counter));
}
public void otherOperation() throws IOException {
counter++;
throw new AccessDeniedException(Integer.toString(counter));
}
@Retryable(value = IOException.class, maxAttempts = 1, delay = 10)
public void overrideOperation() throws IOException {
counter++;
throw new AccessDeniedException(Integer.toString(counter));
}
}
@Retryable(delayString = "${delay}", jitterString = "${jitter}",
multiplierString = "${multiplier}", maxDelayString = "${maxDelay}",
includes = IOException.class, excludes = AccessDeniedException.class,
predicate = CustomPredicate.class)
public static class AnnotatedClassBeanWithStrings {
int counter = 0;
public void retryOperation() throws IOException {
counter++;
throw new IOException(Integer.toString(counter));
}
public void otherOperation() throws IOException {
counter++;
throw new AccessDeniedException(Integer.toString(counter));
}
@Retryable(value = IOException.class, maxAttemptsString = "${limitedAttempts}", delayString = "10ms")
public void overrideOperation() throws IOException {
counter++;
throw new AccessDeniedException(Integer.toString(counter));
}
}
private static class CustomPredicate implements MethodRetryPredicate {
@Override
public boolean shouldRetry(Method method, Throwable throwable) {
return !"3".equals(throwable.getMessage());
}
}
public static class DoubleAnnotatedBean {
AtomicInteger current = new AtomicInteger();
AtomicInteger counter = new AtomicInteger();
AtomicInteger threadChange = new AtomicInteger();
volatile String lastThreadName;
@ConcurrencyLimit(1)
@Retryable(maxAttempts = 2, delay = 10)
public void retryOperation() throws IOException, InterruptedException {
if (current.incrementAndGet() > 1) {
throw new IllegalStateException();
}
Thread.sleep(100);
current.decrementAndGet();
if (!Thread.currentThread().getName().equals(lastThreadName)) {
lastThreadName = Thread.currentThread().getName();
threadChange.incrementAndGet();
}
throw new IOException(Integer.toString(counter.incrementAndGet()));
}
}
@EnableResilientMethods
public static class EnablingConfig {
}
}