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Refactoring samples

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Restructuring the samples repository
Add more docker support
Add acceptance tests for the apps
Adding sensor average processor sample
Remove aggregate samples
This commit is contained in:
Soby Chacko
2018-03-08 16:06:52 -05:00
parent b2cecb08bc
commit e94de0d535
368 changed files with 4428 additions and 3470 deletions
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testing-samples/test-embedded-kafka/src/test/java/demo/EmbeddedKafkaApplicationTests.java Normal file
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/*
* Copyright 2017-2018 the original author or authors.
*
* Licensed 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.
*/
/*
* Copyright 2017-2018 the original author or authors.
*
* Licensed 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 demo;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.common.serialization.ByteArrayDeserializer;
import org.apache.kafka.common.serialization.ByteArraySerializer;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
import org.springframework.kafka.core.DefaultKafkaProducerFactory;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.test.rule.KafkaEmbedded;
import org.springframework.kafka.test.utils.KafkaTestUtils;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.Collections;
import java.util.Map;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Test class demonstrating how to use an embedded kafka service with the
* kafka binder.
*
* @author Gary Russell
* @author Soby Chacko
*
*/
@RunWith(SpringRunner.class)
@SpringBootTest
public class EmbeddedKafkaApplicationTests {
private static final String INPUT_TOPIC = "testEmbeddedIn";
private static final String OUTPUT_TOPIC = "testEmbeddedOut";
private static final String GROUP_NAME = "embeddedKafkaApplication";
@ClassRule
public static KafkaEmbedded embeddedKafka = new KafkaEmbedded(1, true, OUTPUT_TOPIC);
@BeforeClass
public static void setup() {
System.setProperty("spring.cloud.stream.kafka.binder.brokers", embeddedKafka.getBrokersAsString());
System.setProperty("spring.cloud.stream.kafka.binder.zkNodes", embeddedKafka.getZookeeperConnectionString());
}
@Test
public void testSendReceive() {
Map<String, Object> senderProps = KafkaTestUtils.producerProps(embeddedKafka);
senderProps.put("key.serializer", ByteArraySerializer.class);
senderProps.put("value.serializer", ByteArraySerializer.class);
DefaultKafkaProducerFactory<byte[], byte[]> pf = new DefaultKafkaProducerFactory<>(senderProps);
KafkaTemplate<byte[], byte[]> template = new KafkaTemplate<>(pf, true);
template.setDefaultTopic(INPUT_TOPIC);
template.sendDefault("foo".getBytes());
Map<String, Object> consumerProps = KafkaTestUtils.consumerProps(GROUP_NAME, "false", embeddedKafka);
consumerProps.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
consumerProps.put("key.deserializer", ByteArrayDeserializer.class);
consumerProps.put("value.deserializer", ByteArrayDeserializer.class);
DefaultKafkaConsumerFactory<byte[], byte[]> cf = new DefaultKafkaConsumerFactory<>(consumerProps);
Consumer<byte[], byte[]> consumer = cf.createConsumer();
consumer.subscribe(Collections.singleton(OUTPUT_TOPIC));
ConsumerRecords<byte[], byte[]> records = consumer.poll(10_000);
consumer.commitSync();
assertThat(records.count()).isEqualTo(1);
assertThat(new String(records.iterator().next().value())).isEqualTo("FOO");
}
}