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[FLINK-19997] Implement an e2e test for sql-client with Confluent Reg…
…istry Avro format The e2e test uses testcontainers to run Kafka, Schema Registry and Local Flink cluster. Testcontainers use docker underneath, therefore it is required to run the tests. The commit adds a helper FlinkContainer that wraps a local flink distribution and builds a temporary docker image on top of it. It exposes common tasks such as e.g. submitting sql job, it backs up the logs in case of failure etc. This commit introduces a KafkaContainerClient, which uses Kafka client on top of a given KafkaContainer to perform common tasks such as creating topics or reading and writing records using given Kafka Serializers. This closes apache#14085
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...ts-common-kafka/src/main/java/org/apache/flink/tests/util/kafka/KafkaContainerClient.java
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| /* | ||
| * 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:https://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. | ||
| */ | ||
|
|
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| package org.apache.flink.tests.util.kafka; | ||
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| import org.apache.flink.api.common.time.Deadline; | ||
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| import org.apache.kafka.clients.CommonClientConfigs; | ||
| import org.apache.kafka.clients.admin.AdminClient; | ||
| import org.apache.kafka.clients.admin.NewTopic; | ||
| import org.apache.kafka.clients.consumer.Consumer; | ||
| import org.apache.kafka.clients.consumer.ConsumerConfig; | ||
| import org.apache.kafka.clients.consumer.ConsumerRecord; | ||
| import org.apache.kafka.clients.consumer.ConsumerRecords; | ||
| import org.apache.kafka.clients.consumer.KafkaConsumer; | ||
| import org.apache.kafka.clients.producer.KafkaProducer; | ||
| import org.apache.kafka.clients.producer.Producer; | ||
| import org.apache.kafka.clients.producer.ProducerConfig; | ||
| import org.apache.kafka.clients.producer.ProducerRecord; | ||
| import org.apache.kafka.common.serialization.BytesDeserializer; | ||
| import org.apache.kafka.common.serialization.BytesSerializer; | ||
| import org.apache.kafka.common.serialization.Deserializer; | ||
| import org.apache.kafka.common.serialization.Serializer; | ||
| import org.apache.kafka.common.utils.Bytes; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
| import org.testcontainers.containers.KafkaContainer; | ||
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|
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| import java.io.IOException; | ||
| import java.time.Duration; | ||
| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Properties; | ||
| import java.util.regex.Pattern; | ||
|
|
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| /** | ||
| * A utility class that exposes common methods over a {@link KafkaContainer}. | ||
| */ | ||
| public class KafkaContainerClient { | ||
| private static final Logger LOG = LoggerFactory.getLogger(KafkaContainerClient.class); | ||
| private final KafkaContainer container; | ||
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| public KafkaContainerClient(KafkaContainer container) { | ||
| this.container = container; | ||
| } | ||
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| public void createTopic( | ||
| int replicationFactor, | ||
| int numPartitions, | ||
| String topic) { | ||
| Map<String, Object> properties = new HashMap<>(); | ||
| properties.put(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG, container.getBootstrapServers()); | ||
| try (AdminClient admin = AdminClient.create(properties)) { | ||
| admin.createTopics(Collections.singletonList(new NewTopic( | ||
| topic, | ||
| numPartitions, | ||
| (short) replicationFactor))); | ||
| } | ||
| } | ||
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| public <T> void sendMessages(String topic, Serializer<T> valueSerializer, T... messages) { | ||
| Properties props = new Properties(); | ||
| props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, container.getBootstrapServers()); | ||
| props.put(ProducerConfig.ACKS_CONFIG, "all"); | ||
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|
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| try ( | ||
| Producer<Bytes, T> producer = new KafkaProducer<>( | ||
| props, | ||
| new BytesSerializer(), | ||
| valueSerializer)) { | ||
| for (T message : messages) { | ||
| producer.send(new ProducerRecord<>( | ||
| topic, | ||
| message)); | ||
| } | ||
| } | ||
| } | ||
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| public <T> List<T> readMessages( | ||
| int expectedNumMessages, | ||
| String groupId, | ||
| String topic, | ||
| Deserializer<T> valueDeserializer) throws IOException { | ||
| Properties props = new Properties(); | ||
| props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, container.getBootstrapServers()); | ||
| props.put(ConsumerConfig.GROUP_ID_CONFIG, groupId); | ||
| props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, "true"); | ||
| props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest"); | ||
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| final List<T> messages = Collections.synchronizedList(new ArrayList<>( | ||
| expectedNumMessages)); | ||
| try ( | ||
| Consumer<Bytes, T> consumer = new KafkaConsumer<>( | ||
| props, | ||
| new BytesDeserializer(), | ||
| valueDeserializer)) { | ||
| consumer.subscribe(Pattern.compile(topic)); | ||
| final Deadline deadline = Deadline.fromNow(Duration.ofSeconds(120)); | ||
| while (deadline.hasTimeLeft() && messages.size() < expectedNumMessages) { | ||
| LOG.info("Waiting for messages. Received {}/{}.", messages.size(), | ||
| expectedNumMessages); | ||
| ConsumerRecords<Bytes, T> records = consumer.poll(Duration.ofMillis(100)); | ||
| for (ConsumerRecord<Bytes, T> record : records) { | ||
| messages.add(record.value()); | ||
| } | ||
| } | ||
| if (messages.size() != expectedNumMessages) { | ||
| throw new IOException("Could not read expected number of messages."); | ||
| } | ||
| return messages; | ||
| } | ||
| } | ||
| } |
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