/*
* Copyright 2012-2016 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 org.springframework.boot.autoconfigure.kafka;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.junit.After;
import org.junit.ClassRule;
import org.junit.Test;
import org.springframework.boot.test.util.EnvironmentTestUtils;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.support.KafkaHeaders;
import org.springframework.kafka.test.rule.KafkaEmbedded;
import org.springframework.messaging.handler.annotation.Header;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Integration tests for {@link KafkaAutoConfiguration}.
*
* @author Gary Russell
*/
public class KafkaAutoConfigurationIntegrationTests {
private static final String TEST_TOPIC = "testTopic";
@ClassRule
public static final KafkaEmbedded kafkaEmbedded = new KafkaEmbedded(1, true,
TEST_TOPIC);
private AnnotationConfigApplicationContext context;
@After
public void close() {
if (this.context != null) {
this.context.close();
}
}
@Test
public void testEndToEnd() throws Exception {
load(KafkaConfig.class,
"spring.kafka.bootstrap-servers:" + kafkaEmbedded.getBrokersAsString(),
"spring.kafka.consumer.group-id=testGroup",
"spring.kafka.consumer.auto-offset-reset=earliest");
@SuppressWarnings("unchecked")
KafkaTemplate<String, String> template = this.context
.getBean(KafkaTemplate.class);
template.send(TEST_TOPIC, "foo", "bar");
Listener listener = this.context.getBean(Listener.class);
assertThat(listener.latch.await(30, TimeUnit.SECONDS)).isTrue();
assertThat(listener.key).isEqualTo("foo");
assertThat(listener.received).isEqualTo("bar");
}
private void load(Class<?> config, String... environment) {
this.context = doLoad(new Class<?>[] { config }, environment);
}
private AnnotationConfigApplicationContext doLoad(Class<?>[] configs,
String... environment) {
AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext();
applicationContext.register(configs);
applicationContext.register(KafkaAutoConfiguration.class);
EnvironmentTestUtils.addEnvironment(applicationContext, environment);
applicationContext.refresh();
return applicationContext;
}
public static class KafkaConfig {
@Bean
public Listener listener() {
return new Listener();
}
}
public static class Listener {
private final CountDownLatch latch = new CountDownLatch(1);
private volatile String received;
private volatile String key;
@KafkaListener(topics = TEST_TOPIC)
public void listen(String foo,
@Header(KafkaHeaders.RECEIVED_MESSAGE_KEY) String key) {
this.received = foo;
this.key = key;
this.latch.countDown();
}
}
}