/*
* Copyright 2014 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
*
* http://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.retry.interceptor;
import static org.junit.Assert.*;
import java.util.Collections;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import org.aopalliance.intercept.MethodInterceptor;
import org.junit.Test;
import org.springframework.aop.Pointcut;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.retry.RetryOperations;
import org.springframework.retry.backoff.FixedBackOffPolicy;
import org.springframework.retry.policy.SimpleRetryPolicy;
import org.springframework.retry.support.RetryTemplate;
import org.springframework.retry.util.test.TestUtils;
/**
* @author Gary Russell
* @author Artem Bilan
* @since 1.1
*
*/
public class RetryInterceptorBuilderTests {
@Test
public void testBasic() {
StatefulRetryOperationsInterceptor interceptor = RetryInterceptorBuilder.stateful().build();
assertEquals(3, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
}
@Test
public void testWithCustomRetryTemplate() {
RetryOperations retryOperations = new RetryTemplate();
StatefulRetryOperationsInterceptor interceptor = RetryInterceptorBuilder.stateful()
.retryOperations(retryOperations)
.build();
assertEquals(3, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
assertSame(retryOperations, TestUtils.getPropertyValue(interceptor, "retryOperations"));
}
@Test
public void testWithMoreAttempts() {
StatefulRetryOperationsInterceptor interceptor =
RetryInterceptorBuilder.stateful()
.maxAttempts(5)
.build();
assertEquals(5, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
}
@Test
public void testWithCustomizedBackOffMoreAttempts() {
StatefulRetryOperationsInterceptor interceptor =
RetryInterceptorBuilder.stateful()
.maxAttempts(5)
.backOffOptions(1, 2, 10)
.build();
assertEquals(5, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
assertEquals(1L, TestUtils.getPropertyValue(interceptor, "retryOperations.backOffPolicy.initialInterval"));
assertEquals(2.0, TestUtils.getPropertyValue(interceptor, "retryOperations.backOffPolicy.multiplier"));
assertEquals(10L, TestUtils.getPropertyValue(interceptor, "retryOperations.backOffPolicy.maxInterval"));
}
@Test
public void testWithCustomBackOffPolicy() {
StatefulRetryOperationsInterceptor interceptor =
RetryInterceptorBuilder.stateful()
.maxAttempts(5)
.backOffPolicy(new FixedBackOffPolicy())
.build();
assertEquals(5, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
assertEquals(1000L, TestUtils.getPropertyValue(interceptor, "retryOperations.backOffPolicy.backOffPeriod"));
}
@Test
public void testWithCustomNewMessageIdentifier() throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
StatefulRetryOperationsInterceptor interceptor =
RetryInterceptorBuilder.stateful()
.maxAttempts(5)
.newMethodArgumentsIdentifier(new NewMethodArgumentsIdentifier() {
@Override
public boolean isNew(Object[] args) {
latch.countDown();
return false;
}
})
.backOffPolicy(new FixedBackOffPolicy())
.build();
assertEquals(5, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
assertEquals(1000L, TestUtils.getPropertyValue(interceptor, "retryOperations.backOffPolicy.backOffPeriod"));
final AtomicInteger count = new AtomicInteger();
Foo delegate = createDelegate(interceptor, count);
Object message = "";
try {
delegate.onMessage("", message);
}
catch (RuntimeException e) {
assertEquals("foo", e.getMessage());
}
assertEquals(1, count.get());
assertTrue(latch.await(0, TimeUnit.SECONDS));
}
@Test
public void testWitCustomRetryPolicyTraverseCause() {
StatefulRetryOperationsInterceptor interceptor = RetryInterceptorBuilder.stateful()
.retryPolicy(new SimpleRetryPolicy(15, Collections
.<Class<? extends Throwable>, Boolean> singletonMap(Exception.class, true), true))
.build();
assertEquals(15, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
}
@Test
public void testWithCustomKeyGenerator() throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
StatefulRetryOperationsInterceptor interceptor = RetryInterceptorBuilder.stateful()
.keyGenerator(new MethodArgumentsKeyGenerator() {
@Override
public Object getKey(Object[] item) {
latch.countDown();
return "foo";
}
})
.build();
assertEquals(3, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
final AtomicInteger count = new AtomicInteger();
Foo delegate = createDelegate(interceptor, count);
Object message = "";
try {
delegate.onMessage("", message);
}
catch (RuntimeException e) {
assertEquals("foo", e.getMessage());
}
assertEquals(1, count.get());
assertTrue(latch.await(0, TimeUnit.SECONDS));
}
private Foo createDelegate(MethodInterceptor interceptor, final AtomicInteger count) {
Foo delegate = new Foo() {
@Override
public void onMessage(String s, Object message) {
count.incrementAndGet();
throw new RuntimeException("foo", new RuntimeException("bar"));
}
};
ProxyFactory factory = new ProxyFactory();
factory.addAdvisor(new DefaultPointcutAdvisor(Pointcut.TRUE, interceptor));
factory.setProxyTargetClass(false);
factory.addInterface(Foo.class);
factory.setTarget(delegate);
delegate = (Foo) factory.getProxy();
return delegate;
}
static interface Foo {
void onMessage(String s, Object message);
}
}