/*
* 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.nifi.processors.kafka.pubsub;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeoutException;
import org.apache.nifi.util.MockFlowFile;
import org.junit.Assert;
import org.junit.Test;
public class TestInFlightMessageTracker {
@Test(timeout = 5000L)
public void testAwaitCompletionWhenComplete() throws InterruptedException, TimeoutException {
final MockFlowFile flowFile = new MockFlowFile(1L);
final InFlightMessageTracker tracker = new InFlightMessageTracker();
tracker.incrementSentCount(flowFile);
verifyNotComplete(tracker);
tracker.incrementSentCount(flowFile);
verifyNotComplete(tracker);
tracker.incrementAcknowledgedCount(flowFile);
verifyNotComplete(tracker);
tracker.incrementAcknowledgedCount(flowFile);
tracker.awaitCompletion(1L);
}
@Test(timeout = 5000L)
public void testAwaitCompletionWhileWaiting() throws InterruptedException, ExecutionException {
final MockFlowFile flowFile = new MockFlowFile(1L);
final InFlightMessageTracker tracker = new InFlightMessageTracker();
tracker.incrementSentCount(flowFile);
verifyNotComplete(tracker);
tracker.incrementSentCount(flowFile);
verifyNotComplete(tracker);
final ExecutorService exec = Executors.newFixedThreadPool(1);
final Future<?> future = exec.submit(() -> {
try {
tracker.awaitCompletion(10000L);
} catch (Exception e) {
throw new RuntimeException(e);
}
});
tracker.incrementAcknowledgedCount(flowFile);
tracker.incrementAcknowledgedCount(flowFile);
future.get();
}
private void verifyNotComplete(final InFlightMessageTracker tracker) throws InterruptedException {
try {
tracker.awaitCompletion(10L);
Assert.fail("Expected timeout");
} catch (final TimeoutException te) {
// expected
}
}
}