multibinder.RabbitAndKafkaBinderApplicationTests.java Source code

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Here is the source code for multibinder.RabbitAndKafkaBinderApplicationTests.java

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/*
 * Copyright 2015-2016 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 multibinder;

import java.util.UUID;

import org.hamcrest.CoreMatchers;
import org.hamcrest.Matchers;
import org.junit.After;
import org.junit.Assert;
import org.junit.ClassRule;
import org.junit.Test;

import org.springframework.amqp.rabbit.core.RabbitAdmin;
import org.springframework.boot.SpringApplication;
import org.springframework.cloud.stream.binder.BinderFactory;
import org.springframework.cloud.stream.binder.ExtendedConsumerProperties;
import org.springframework.cloud.stream.binder.ExtendedProducerProperties;
import org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder;
import org.springframework.cloud.stream.binder.kafka.KafkaProducerProperties;
import org.springframework.cloud.stream.binder.rabbit.RabbitConsumerProperties;
import org.springframework.cloud.stream.binder.rabbit.RabbitMessageChannelBinder;
import org.springframework.cloud.stream.binder.test.junit.rabbit.RabbitTestSupport;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.channel.QueueChannel;
import org.springframework.kafka.test.rule.KafkaEmbedded;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.test.annotation.DirtiesContext;

/**
 * @author Marius Bogoevici
 * @author Gary Russell
 */
@DirtiesContext
public class RabbitAndKafkaBinderApplicationTests {

    @ClassRule
    public static RabbitTestSupport rabbitTestSupport = new RabbitTestSupport();

    @ClassRule
    public static KafkaEmbedded kafkaEmbedded = new KafkaEmbedded(1, true, "test");

    private final String randomGroup = UUID.randomUUID().toString();

    @After
    public void cleanUp() {
        RabbitAdmin admin = new RabbitAdmin(rabbitTestSupport.getResource());
        admin.deleteQueue("binder.dataOut.default");
        admin.deleteQueue("binder.dataOut." + this.randomGroup);
        admin.deleteExchange("binder.dataOut");
    }

    @Test
    public void contextLoads() throws Exception {
        // passing connection arguments arguments to the embedded Kafka instance
        ConfigurableApplicationContext context = SpringApplication.run(MultibinderApplication.class,
                "--spring.cloud.stream.kafka.binder.brokers=" + kafkaEmbedded.getBrokersAsString(),
                "--spring.cloud.stream.kafka.binder.zkNodes=" + kafkaEmbedded.getZookeeperConnectionString());
        context.close();
    }

    @Test
    public void messagingWorks() throws Exception {
        // passing connection arguments arguments to the embedded Kafka instance
        ConfigurableApplicationContext context = SpringApplication.run(MultibinderApplication.class,
                "--spring.cloud.stream.kafka.binder.brokers=" + kafkaEmbedded.getBrokersAsString(),
                "--spring.cloud.stream.kafka.binder.zkNodes=" + kafkaEmbedded.getZookeeperConnectionString(),
                "--spring.cloud.stream.bindings.output.producer.requiredGroups=" + this.randomGroup);
        DirectChannel dataProducer = new DirectChannel();
        BinderFactory<?> binderFactory = context.getBean(BinderFactory.class);

        QueueChannel dataConsumer = new QueueChannel();

        ((RabbitMessageChannelBinder) binderFactory.getBinder("rabbit")).bindConsumer("dataOut", this.randomGroup,
                dataConsumer, new ExtendedConsumerProperties<>(new RabbitConsumerProperties()));

        ((KafkaMessageChannelBinder) binderFactory.getBinder("kafka")).bindProducer("dataIn", dataProducer,
                new ExtendedProducerProperties<>(new KafkaProducerProperties()));

        String testPayload = "testFoo" + this.randomGroup;
        dataProducer.send(MessageBuilder.withPayload(testPayload).build());

        Message<?> receive = dataConsumer.receive(10000);
        Assert.assertThat(receive, Matchers.notNullValue());
        Assert.assertThat(receive.getPayload(), CoreMatchers.equalTo(testPayload));
        context.close();
    }

}