import de.juplo.kafka.chat.backend.api.ChatRoomInfoTo;
import de.juplo.kafka.chat.backend.api.MessageTo;
-import lombok.EqualsAndHashCode;
-import lombok.Getter;
-import lombok.Setter;
-import lombok.ToString;
import lombok.extern.slf4j.Slf4j;
-import org.awaitility.Awaitility;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
-import org.springframework.http.codec.ServerSentEvent;
import org.springframework.web.reactive.function.client.WebClient;
-import org.testcontainers.containers.BindMode;
-import org.testcontainers.containers.GenericContainer;
-import org.testcontainers.containers.Network;
-import org.testcontainers.containers.output.Slf4jLogConsumer;
-import org.testcontainers.containers.wait.strategy.Wait;
-import org.testcontainers.images.ImagePullPolicy;
-import org.testcontainers.junit.jupiter.Testcontainers;
-import org.testcontainers.utility.DockerImageName;
-import reactor.core.publisher.Flux;
+import org.springframework.web.reactive.function.client.WebClientResponseException;
import reactor.core.publisher.Mono;
import reactor.util.retry.Retry;
-import java.io.IOException;
+import java.nio.charset.Charset;
import java.time.Duration;
-import java.util.stream.IntStream;
+import java.util.concurrent.ThreadLocalRandom;
-@Testcontainers
@Slf4j
-public abstract class AbstractHandoverIT
+public class TestClient implements Runnable
{
- static final ImagePullPolicy NEVER_PULL = imageName -> false;
- static final ParameterizedTypeReference<ServerSentEvent<String>> SSE_TYPE = new ParameterizedTypeReference<>() {};
-
-
- @Test
- void test() throws InterruptedException
+ @Override
+ public void run()
{
- ChatRoomInfoTo chatRoom = createChatRoom("bar").block();
- User user = new User("nerd");
- IntStream
- .rangeClosed(1,100)
- .mapToObj(i ->sendMessage(chatRoom, user, "Message #" + i))
- .map(result -> result
- .map(MessageTo::toString)
+ for (int i = 0; running; i++)
+ {
+ String message = "Message #" + i;
+ for (ChatRoomInfoTo chatRoom : chatRooms)
+ {
+ sendMessage(chatRoom, message)
.retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
- .block())
- .forEach(result -> log.info("{}", result));
-
- receiveMessages(chatRoom)
- .take(100)
- .doOnNext(message -> log.info("message: {}", message))
- .then()
- .block();
- }
-
- Mono<ChatRoomInfoTo> createChatRoom(String name)
- {
- return webClient
- .post()
- .uri("/create")
- .contentType(MediaType.TEXT_PLAIN)
- .bodyValue(name)
- .accept(MediaType.APPLICATION_JSON)
- .exchangeToMono(response ->
- {
- if (response.statusCode().equals(HttpStatus.OK))
- {
- return response.bodyToMono(ChatRoomInfoTo.class);
- }
- else
- {
- return response.createError();
- }
- });
+ .map(MessageTo::toString)
+ .onErrorResume(throwable ->
+ {
+ WebClientResponseException e = (WebClientResponseException)throwable.getCause();
+ return Mono.just(e.getResponseBodyAsString(Charset.defaultCharset()));
+ })
+ .subscribe(result -> log.info(
+ "{} sent a message to {}: {}",
+ user,
+ chatRoom,
+ result));
+ }
+ try
+ {
+ Thread.sleep(ThreadLocalRandom.current().nextLong(700, 1000));
+ }
+ catch (Exception e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
}
- Mono<MessageTo> sendMessage(
+ private Mono<MessageTo> sendMessage(
ChatRoomInfoTo chatRoom,
- User user,
String message)
{
return webClient
});
}
- Flux<ServerSentEvent<String>> receiveMessages(ChatRoomInfoTo chatRoom)
- {
- return webClient
- .get()
- .uri(
- "/{chatRoomId}/listen",
- chatRoom.getId())
- .accept(MediaType.TEXT_EVENT_STREAM)
- .retrieve()
- .bodyToFlux(SSE_TYPE);
- }
-
- WebClient webClient;
+ private final WebClient webClient;
+ private final ChatRoomInfoTo[] chatRooms;
+ private final User user;
+ volatile boolean running = true;
- abstract void setUpExtra() throws IOException, InterruptedException;
- @BeforeEach
- void setUp() throws Exception
+ TestClient(Integer port, ChatRoomInfoTo[] chatRooms, String username)
{
- setUpExtra();
- haproxy.start();
- backend1.start();
- // backend2.start();
- // backend3.start();
-
- Integer port = haproxy.getMappedPort(8400);
webClient = WebClient.create("http://localhost:" + port);
-
- Awaitility
- .await()
- .atMost(Duration.ofMinutes(10))
- .until(() -> WebClient
- .create("http://localhost:" + backend1.getMappedPort(8080))
- .get()
- .uri("/actuator/health")
- .exchangeToMono(response ->
- {
- if (response.statusCode().equals(HttpStatus.OK))
- {
- return response
- .bodyToMono(StatusTo.class)
- .map(StatusTo::getStatus)
- .map(status -> status.equalsIgnoreCase("UP"));
- }
- else
- {
- return Mono.just(false);
- }
- })
- .block());
-
- haproxy
- .getDockerClient()
- .killContainerCmd(haproxy.getContainerId())
- .withSignal("HUP")
- .exec();
-
-
- Awaitility
- .await()
- .atMost(Duration.ofMinutes(10))
- .until(() -> webClient
- .get()
- .uri("/actuator/health")
- .exchangeToMono(response ->
- {
- if (response.statusCode().equals(HttpStatus.OK))
- {
- return response
- .bodyToMono(StatusTo.class)
- .map(StatusTo::getStatus)
- .map(status -> status.equalsIgnoreCase("UP"));
- }
- else
- {
- return Mono.just(false);
- }
- })
- .block());
- }
-
- Network network = Network.newNetwork();
-
- GenericContainer haproxy =
- new GenericContainer(DockerImageName.parse("haproxytech/haproxy-debian:2.8"))
- .withNetwork(network)
- .withNetworkAliases("haproxy")
- .withClasspathResourceMapping(
- "haproxy.cfg",
- "/usr/local/etc/haproxy/haproxy.cfg",
- BindMode.READ_ONLY)
- .withClasspathResourceMapping(
- "sharding.map",
- "/usr/local/etc/haproxy/sharding.map",
- BindMode.READ_WRITE)
- .withExposedPorts(8400, 8401, 8404)
- .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("HAPROXY"));
-
- abstract String[] getCommandBackend1();
- GenericContainer backend1 =
- new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
- .withImagePullPolicy(NEVER_PULL)
- .withNetwork(network)
- .withNetworkAliases("backend-1")
- .withCommand(getCommandBackend1())
- .withExposedPorts(8080)
- .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
- .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-1"));
-
- abstract String[] getCommandBackend2();
- GenericContainer backend2 =
- new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
- .withImagePullPolicy(NEVER_PULL)
- .withNetwork(network)
- .withNetworkAliases("backend-2")
- .withCommand(getCommandBackend2())
- .withExposedPorts(8080)
- .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
- .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-2"));
-
- abstract String[] getCommandBackend3();
- GenericContainer backend3 =
- new GenericContainer(DockerImageName.parse("juplo/chat-backend:0.0.1-SNAPSHOT"))
- .withImagePullPolicy(NEVER_PULL)
- .withNetwork(network)
- .withNetworkAliases("backend-3")
- .withCommand(getCommandBackend3())
- .withExposedPorts(8080)
- .waitingFor(Wait.forLogMessage(".*Started\\ ChatBackendApplication.*\\n", 1))
- .withLogConsumer(new Slf4jLogConsumer(log, true).withPrefix("BACKEND-3"));
-
-
- @EqualsAndHashCode
- @ToString
- class User
- {
- @Getter
- private final String name;
- private int serial = 0;
-
-
- User (String name)
- {
- this.name = name;
- }
-
-
- int nextSerial()
- {
- return ++serial;
- }
- }
-
- @Getter
- @Setter
- static class StatusTo
- {
- String status;
+ this.chatRooms = chatRooms;
+ user = new User(username);
}
}