kamalcph commented on a change in pull request #10602: URL: https://github.com/apache/kafka/pull/10602#discussion_r622198249
########## File path: streams/upgrade-system-tests-28/src/test/java/org/apache/kafka/streams/tests/SmokeTestClient.java ########## @@ -0,0 +1,299 @@ +/* + * 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.tests; + +import org.apache.kafka.common.serialization.Serdes; +import org.apache.kafka.common.utils.Bytes; +import org.apache.kafka.common.utils.KafkaThread; +import org.apache.kafka.common.utils.Utils; +import org.apache.kafka.streams.KafkaStreams; +import org.apache.kafka.streams.KeyValue; +import org.apache.kafka.streams.StreamsBuilder; +import org.apache.kafka.streams.StreamsConfig; +import org.apache.kafka.streams.Topology; +import org.apache.kafka.streams.errors.StreamsUncaughtExceptionHandler; +import org.apache.kafka.streams.kstream.Consumed; +import org.apache.kafka.streams.kstream.Grouped; +import org.apache.kafka.streams.kstream.KGroupedStream; +import org.apache.kafka.streams.kstream.KStream; +import org.apache.kafka.streams.kstream.KTable; +import org.apache.kafka.streams.kstream.Materialized; +import org.apache.kafka.streams.kstream.Produced; +import org.apache.kafka.streams.kstream.Suppressed.BufferConfig; +import org.apache.kafka.streams.kstream.TimeWindows; +import org.apache.kafka.streams.kstream.Windowed; +import org.apache.kafka.streams.state.Stores; +import org.apache.kafka.streams.state.WindowStore; + +import java.io.File; +import java.io.IOException; +import java.nio.file.Files; +import java.time.Duration; +import java.time.Instant; +import java.util.Properties; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; + +import static org.apache.kafka.streams.kstream.Suppressed.untilWindowCloses; + +public class SmokeTestClient extends SmokeTestUtil { + + private final String name; + + private KafkaStreams streams; + private boolean uncaughtException = false; + private boolean started; + private volatile boolean closed; + + private static void addShutdownHook(final String name, final Runnable runnable) { + if (name != null) { + Runtime.getRuntime().addShutdownHook(KafkaThread.nonDaemon(name, runnable)); + } else { + Runtime.getRuntime().addShutdownHook(new Thread(runnable)); + } + } + + private static File tempDirectory() { + final String prefix = "kafka-"; + final File file; + try { + file = Files.createTempDirectory(prefix).toFile(); + } catch (final IOException ex) { + throw new RuntimeException("Failed to create a temp dir", ex); + } + file.deleteOnExit(); + + addShutdownHook("delete-temp-file-shutdown-hook", () -> { + try { + Utils.delete(file); + } catch (final IOException e) { + System.out.println("Error deleting " + file.getAbsolutePath()); + e.printStackTrace(System.out); + } + }); + + return file; + } + + public SmokeTestClient(final String name) { + this.name = name; + } + + public boolean started() { + return started; + } + + public boolean closed() { + return closed; + } + + public void start(final Properties streamsProperties) { + final Topology build = getTopology(); + streams = new KafkaStreams(build, getStreamsConfig(streamsProperties)); + + final CountDownLatch countDownLatch = new CountDownLatch(1); + streams.setStateListener((newState, oldState) -> { + System.out.printf("%s %s: %s -> %s%n", name, Instant.now(), oldState, newState); + if (oldState == KafkaStreams.State.REBALANCING && newState == KafkaStreams.State.RUNNING) { + started = true; + countDownLatch.countDown(); + } + + if (newState == KafkaStreams.State.NOT_RUNNING) { + closed = true; + } + }); + + streams.setUncaughtExceptionHandler(e -> { Review comment: Updated this part of the code as the `streams#setUncaughtExceptionHandler(Thread.UncaughtExceptionHandler handler)` method is deprecated -- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
