showuon commented on a change in pull request #11063: URL: https://github.com/apache/kafka/pull/11063#discussion_r671818564
########## File path: streams/src/test/java/org/apache/kafka/streams/integration/WindowedChangelogRetentionIntegrationTest.java ########## @@ -0,0 +1,304 @@ +/* + * 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.kafka.streams.integration; + +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.common.config.TopicConfig; +import org.apache.kafka.common.serialization.Serde; +import org.apache.kafka.common.serialization.Serdes; +import org.apache.kafka.common.utils.Bytes; +import org.apache.kafka.streams.KafkaStreams; +import org.apache.kafka.streams.KafkaStreams.State; +import org.apache.kafka.streams.StreamsBuilder; +import org.apache.kafka.streams.StreamsConfig; +import org.apache.kafka.streams.Topology; +import org.apache.kafka.streams.integration.utils.EmbeddedKafkaCluster; +import org.apache.kafka.streams.integration.utils.IntegrationTestUtils; +import org.apache.kafka.streams.kstream.Consumed; +import org.apache.kafka.streams.kstream.Grouped; +import org.apache.kafka.streams.kstream.JoinWindows; +import org.apache.kafka.streams.kstream.KGroupedStream; +import org.apache.kafka.streams.kstream.KStream; +import org.apache.kafka.streams.kstream.KeyValueMapper; +import org.apache.kafka.streams.kstream.Materialized; +import org.apache.kafka.streams.kstream.Produced; +import org.apache.kafka.streams.kstream.SessionWindows; +import org.apache.kafka.streams.kstream.StreamJoined; +import org.apache.kafka.streams.kstream.TimeWindows; +import org.apache.kafka.streams.kstream.Windowed; +import org.apache.kafka.streams.kstream.WindowedSerdes; +import org.apache.kafka.streams.kstream.Windows; +import org.apache.kafka.streams.kstream.internals.TimeWindow; +import org.apache.kafka.streams.state.SessionStore; +import org.apache.kafka.streams.state.WindowStore; +import org.apache.kafka.test.IntegrationTest; +import org.apache.kafka.test.MockMapper; +import org.apache.kafka.test.TestUtils; +import org.junit.After; +import org.junit.AfterClass; +import org.junit.Before; +import org.junit.BeforeClass; +import org.junit.Rule; +import org.junit.Test; +import org.junit.experimental.categories.Category; +import org.junit.rules.TestName; + +import java.io.IOException; +import java.time.Duration; +import java.util.Collections; +import java.util.Properties; + +import static org.apache.kafka.streams.integration.utils.IntegrationTestUtils.safeUniqueTestName; +import static org.hamcrest.MatcherAssert.assertThat; +import static org.hamcrest.core.Is.is; + +@SuppressWarnings("deprecation") +@Category({IntegrationTest.class}) +public class WindowedChangelogRetentionIntegrationTest { + private static final int NUM_BROKERS = 1; + private static final Duration DEFAULT_RETENTION = Duration.ofDays(1); + + public static final EmbeddedKafkaCluster CLUSTER = new EmbeddedKafkaCluster(NUM_BROKERS); + + private StreamsBuilder builder; + private Properties streamsConfiguration; + private KafkaStreams kafkaStreams; + private String streamOneInput; + private String streamTwoInput; + private String outputTopic; + private KGroupedStream<String, String> groupedStream; + + @Rule + public TestName testName = new TestName(); + + @BeforeClass + public static void startCluster() throws IOException { + CLUSTER.start(); + } + + @AfterClass + public static void closeCluster() { + CLUSTER.stop(); + } + + @Before + public void before() throws InterruptedException { + builder = new StreamsBuilder(); + createTopics(); + streamsConfiguration = new Properties(); + final String safeTestName = safeUniqueTestName(getClass(), testName); + streamsConfiguration.put(StreamsConfig.APPLICATION_ID_CONFIG, "app-" + safeTestName); + streamsConfiguration.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, CLUSTER.bootstrapServers()); + streamsConfiguration.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest"); + streamsConfiguration.put(StreamsConfig.STATE_DIR_CONFIG, TestUtils.tempDirectory().getPath()); + streamsConfiguration.put(StreamsConfig.CACHE_MAX_BYTES_BUFFERING_CONFIG, 0); + streamsConfiguration.put(StreamsConfig.COMMIT_INTERVAL_MS_CONFIG, 100); + streamsConfiguration.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, Serdes.String().getClass()); + streamsConfiguration.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, Serdes.Integer().getClass()); + + final KeyValueMapper<Integer, String, String> mapper = MockMapper.selectValueMapper(); + final KStream<Integer, String> stream = builder.stream(streamOneInput, Consumed.with(Serdes.Integer(), Serdes.String())); + groupedStream = stream.groupBy(mapper, Grouped.with(Serdes.String(), Serdes.String())); + } + + @After + public void whenShuttingDown() throws Exception { + if (kafkaStreams != null) { + kafkaStreams.close(); + } + IntegrationTestUtils.purgeLocalStreamsState(streamsConfiguration); + } + + @Test + public void timeWindowedChangelogShouldHaveRetentionOfWindowSizeIfWindowSizeLargerThanDefaultRetention() throws Exception { + final Duration windowSize = DEFAULT_RETENTION.plus(Duration.ofHours(1)); + final Duration expectedRetention = windowSize; + runAndVerifyTimeWindows(TimeWindows.of(windowSize), null, expectedRetention); + } + + @Test + public void timeWindowedChangelogShouldHaveDefaultRetentionIfWindowSizeLessThanDefaultRetention() throws Exception { + final Duration windowSize = DEFAULT_RETENTION.minus(Duration.ofHours(1)); + final Duration expectedRetention = DEFAULT_RETENTION; + runAndVerifyTimeWindows(TimeWindows.of(windowSize), null, expectedRetention); + } + + @Test + public void timeWindowedChangelogShouldHaveRetentionOfWindowSizePlusGraceIfWindowSizePlusGraceLargerThanDefaultRetention() throws Exception { + final Duration windowSize = DEFAULT_RETENTION.plus(Duration.ofHours(1)); + final Duration grace = Duration.ofHours(12); + final Duration expectedRetention = windowSize.plus(grace); + runAndVerifyTimeWindows(TimeWindows.of(windowSize).grace(grace), null, expectedRetention); + } + + @Test + public void timeWindowedChangelogShouldHaveDefaultRetentionIfWindowSizePlusGraceLessThanDefaultRetention() throws Exception { + final Duration grace = Duration.ofMillis(1000); + final Duration windowSize = DEFAULT_RETENTION.minus(grace).minus(Duration.ofMillis(500)); + final Duration expectedRetention = DEFAULT_RETENTION; + runAndVerifyTimeWindows(TimeWindows.of(windowSize).grace(grace), null, expectedRetention); + } + + @Test + public void timeWindowedChangelogShouldHaveUserSpecifiedRetentionIfUserSpecifiedRetentionEvenIfLessThanDefaultRetention() throws Exception { Review comment: typo: `timeWindowedChangelogShouldHaveUserSpecifiedRetentionIfUserSpecifiedRetention[EvenIf]LessThanDefaultRetention` -> `timeWindowedChangelogShouldHaveUserSpecifiedRetentionIfUserSpecifiedRetentionLessThanDefaultRetention`? -- This is an automated message from the Apache Git Service. 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