gnodet commented on code in PR #22769: URL: https://github.com/apache/camel/pull/22769#discussion_r3199995435
########## core/camel-core/src/test/java/org/apache/camel/processor/aggregator/AggregateOptimisticLockSyncRetryTest.java: ########## @@ -0,0 +1,215 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.apache.camel.processor.aggregator; + +import java.util.concurrent.atomic.AtomicInteger; +import java.util.concurrent.atomic.AtomicReference; + +import org.apache.camel.CamelContext; +import org.apache.camel.ContextTestSupport; +import org.apache.camel.Exchange; +import org.apache.camel.builder.RouteBuilder; +import org.apache.camel.component.mock.MockEndpoint; +import org.apache.camel.processor.BodyInAggregatingStrategy; +import org.apache.camel.processor.aggregate.MemoryAggregationRepository; +import org.apache.camel.processor.aggregate.OptimisticLockRetryPolicy; +import org.junit.jupiter.api.Test; + +import static org.junit.jupiter.api.Assertions.assertFalse; +import static org.junit.jupiter.api.Assertions.assertTrue; + +/** + * Tests that optimistic locking retries happen synchronously in the same thread when optimisticLockingSyncRetry is + * enabled. + */ +public class AggregateOptimisticLockSyncRetryTest extends ContextTestSupport { + + private static final int FAIL_FIRST_N_ATTEMPTS = 3; + + private final AtomicInteger addCounter = new AtomicInteger(); + private volatile String aggregateThreadName; + + /** + * Repository that throws OptimisticLockingException for the first N attempts, then succeeds. + */ + private final MemoryAggregationRepository repository = new MemoryAggregationRepository(true) { + @Override + public Exchange add(CamelContext camelContext, String key, Exchange oldExchange, Exchange newExchange) { + int count = addCounter.incrementAndGet(); + // Record the thread name on every attempt + aggregateThreadName = Thread.currentThread().getName(); + if (count <= FAIL_FIRST_N_ATTEMPTS) { + throw new OptimisticLockingException(); + } + return super.add(camelContext, key, oldExchange, newExchange); + } + }; + + @Test + public void testSyncRetryHappensInSameThread() throws Exception { + MockEndpoint mock = getMockEndpoint("mock:result"); + mock.expectedMessageCount(1); + + String callerThread = Thread.currentThread().getName(); + + template.sendBodyAndHeader("direct:start", "A", "id", 1); + template.sendBodyAndHeader("direct:start", "B", "id", 1); + + mock.assertIsSatisfied(); + + // The repository should have been called more than FAIL_FIRST_N_ATTEMPTS times + // (the first N fail, then succeed) + assertTrue(addCounter.get() > FAIL_FIRST_N_ATTEMPTS, + "Expected more than " + FAIL_FIRST_N_ATTEMPTS + " attempts, got " + addCounter.get()); + + // Since optimisticLockingSyncRetry is enabled, the retry should happen in a Camel thread + // (the route's thread), NOT in the AggregateOptimisticLockingExecutor thread pool. + // The key assertion is that the thread name does NOT contain the async executor name. + if (aggregateThreadName != null) { + assertFalse(aggregateThreadName.contains("AggregateOptimisticLockingExecutor"), + "Expected synchronous retry but found async executor thread: " + aggregateThreadName); + } Review Comment: test multi-line -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
