package de.juplo.kafka.chat.backend;
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.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 reactor.core.publisher.Mono;
-import reactor.util.retry.Retry;
-import java.io.IOException;
-import java.time.Duration;
+import java.util.Arrays;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
import java.util.stream.IntStream;
@Slf4j
public abstract class AbstractHandoverIT
{
- static final ImagePullPolicy NEVER_PULL = imageName -> false;
static final ParameterizedTypeReference<ServerSentEvent<String>> SSE_TYPE = new ParameterizedTypeReference<>() {};
+ static final int NUM_CHATROOMS = 23;
+ static final int NUM_CLIENTS = 17;
+
+
+ private final AbstractHandoverITContainers containers;
+ private final ExecutorService executorService = Executors.newFixedThreadPool(NUM_CLIENTS);
+
+
+ AbstractHandoverIT(AbstractHandoverITContainers containers)
+ {
+ this.containers = containers;
+ }
@Test
void test() throws InterruptedException
{
- 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)
- .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
- .block())
- .forEach(result -> log.info("{}", result));
-
- receiveMessages(chatRoom)
- .take(100)
+ ChatRoomInfoTo[] chatRooms = Flux
+ .range(0, NUM_CHATROOMS)
+ .flatMap(i -> createChatRoom("room-" + i))
+ .toStream()
+ .toArray(size -> new ChatRoomInfoTo[size]);
+
+ TestClient[] testClients = Flux
+ .fromStream(IntStream.range(0, NUM_CLIENTS).mapToObj(i -> "user-" + Integer.toString(i)))
+ .map(i -> new TestClient(
+ containers.haproxy.getMappedPort(8400),
+ chatRooms,
+ i))
+ .doOnNext(testClient -> executorService.execute(testClient))
+ .toStream()
+ .toArray(size -> new TestClient[size]);
+
+ Thread.sleep(2000);
+
+ Arrays
+ .stream(testClients)
+ .forEach(testClient -> testClient.running = false);
+
+ Flux
+ .fromArray(chatRooms)
+ .flatMap(chatRoom ->receiveMessages(chatRoom).take(50))
.doOnNext(message -> log.info("message: {}", message))
.then()
.block();
});
}
- Mono<MessageTo> sendMessage(
- ChatRoomInfoTo chatRoom,
- User user,
- String message)
- {
- return webClient
- .put()
- .uri(
- "/{chatRoomId}/{username}/{serial}",
- chatRoom.getId(),
- user.getName(),
- user.nextSerial())
- .contentType(MediaType.TEXT_PLAIN)
- .accept(MediaType.APPLICATION_JSON)
- .bodyValue(message)
- .exchangeToMono(response ->
- {
- if (response.statusCode().equals(HttpStatus.OK))
- {
- return response.bodyToMono(MessageTo.class);
- }
- else
- {
- return response.createError();
- }
- });
- }
-
Flux<ServerSentEvent<String>> receiveMessages(ChatRoomInfoTo chatRoom)
{
return webClient
WebClient webClient;
-
- abstract void setUpExtra() throws IOException, InterruptedException;
-
@BeforeEach
void setUp() throws Exception
{
- setUpExtra();
- haproxy.start();
- backend1.start();
- // backend2.start();
- // backend3.start();
+ containers.setUp();
- Integer port = haproxy.getMappedPort(8400);
+ Integer port = containers.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;
}
}
projects / demos / kafka / chat / blobdiff