/*
* Copyright 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.cloud.stream.reactive;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import reactor.core.publisher.Flux;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.Input;
import org.springframework.cloud.stream.annotation.Output;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.cloud.stream.messaging.Processor;
import org.springframework.cloud.stream.test.binder.MessageCollector;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.messaging.Message;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.messaging.support.MessageBuilder;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.fail;
import static org.springframework.cloud.stream.binding.StreamListenerErrorMessages.INVALID_DECLARATIVE_METHOD_PARAMETERS;
import static org.springframework.cloud.stream.binding.StreamListenerErrorMessages.INVALID_INPUT_VALUE_WITH_OUTPUT_METHOD_PARAM;
/**
* @author Ilayaperumal Gopinathan
*/
public class StreamListenerWildCardFluxInputOutputArgsWithMessageTests {
@Test
public void testWildCardFluxInputOutputArgsWithMessage() throws Exception {
ConfigurableApplicationContext context = SpringApplication.run(TestWildCardFluxInputOutputArgsWithMessage1.class, "--server.port=0");
sendMessageAndValidate(context);
context.close();
}
@Test
public void testInputAsStreamListenerAndOutputAsParameterUsage() {
try {
SpringApplication.run(TestWildCardFluxInputOutputArgsWithMessage2.class, "--server.port=0");
fail("Expected exception: " + INVALID_INPUT_VALUE_WITH_OUTPUT_METHOD_PARAM);
}
catch (Exception e) {
assertThat(e.getMessage()).contains(INVALID_INPUT_VALUE_WITH_OUTPUT_METHOD_PARAM);
}
}
@Test
public void testIncorrectUsage1() throws Exception {
try {
SpringApplication.run(TestWildCardFluxInputOutputArgsWithMessage3.class, "--server.port=0");
fail("Expected exception: " + INVALID_DECLARATIVE_METHOD_PARAMETERS);
}
catch (Exception e) {
assertThat(e.getMessage()).contains(INVALID_DECLARATIVE_METHOD_PARAMETERS);
}
}
private static void sendMessageAndValidate(ConfigurableApplicationContext context) throws InterruptedException {
@SuppressWarnings("unchecked")
Processor processor = context.getBean(Processor.class);
String sentPayload = "hello " + UUID.randomUUID().toString();
processor.input().send(MessageBuilder.withPayload(sentPayload).setHeader("contentType", "text/plain").build());
MessageCollector messageCollector = context.getBean(MessageCollector.class);
Message<?> result = messageCollector.forChannel(processor.output()).poll(1000, TimeUnit.MILLISECONDS);
assertThat(result).isNotNull();
assertThat(result.getPayload()).isEqualTo(sentPayload.toUpperCase());
}
@EnableBinding(Processor.class)
@EnableAutoConfiguration
public static class TestWildCardFluxInputOutputArgsWithMessage1 {
@StreamListener
public void receive(@Input(Processor.INPUT) Flux<?> input,
@Output(Processor.OUTPUT) FluxSender output) {
output.send(input.map(m -> MessageBuilder.withPayload(m.toString().toUpperCase()).build()));
}
}
@EnableBinding(Processor.class)
@EnableAutoConfiguration
public static class TestWildCardFluxInputOutputArgsWithMessage2 {
@StreamListener(Processor.INPUT)
public void receive(Flux<?> input, @Output(Processor.OUTPUT) FluxSender output) {
output.send(input.map(m -> MessageBuilder.withPayload(m.toString().toUpperCase()).build()));
}
}
@EnableBinding(Processor.class)
@EnableAutoConfiguration
public static class TestWildCardFluxInputOutputArgsWithMessage3 {
@StreamListener(Processor.INPUT)
@SendTo(Processor.OUTPUT)
public void receive(Flux<?> input, FluxSender output) {
output.send(input.map(m -> MessageBuilder.withPayload(m.toString().toUpperCase()).build()));
}
}
}