test: HandoverIT-POC - Running multiple clients in parallel

[demos/kafka/chat] / src / test / java / de / juplo / kafka / chat / backend / TestClient.java

diff --git a/src/test/java/de/juplo/kafka/chat/backend/TestClient.java b/src/test/java/de/juplo/kafka/chat/backend/TestClient.java
index 4aad7f8..964a06b 100644 (file)
--- a/src/test/java/de/juplo/kafka/chat/backend/TestClient.java
+++ b/src/test/java/de/juplo/kafka/chat/backend/TestClient.java
@@ -6,27 +6,42 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.web.reactive.function.client.WebClient;
-import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.util.retry.Retry;
 
 import java.time.Duration;
+import java.util.concurrent.ThreadLocalRandom;
 
 
 @Slf4j
-public class TestClient
+public class TestClient implements Runnable
 {
+  @Override
   public void run()
   {
-    Flux
-        .range(1, 100)
-        .flatMap(i -> Flux
-            .fromArray(chatRooms)
-            .map(chatRoom -> sendMessage(chatRoom, "Message #" + i))
-            .flatMap(result -> result
-                .map(MessageTo::toString)
-                .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))))
-        .subscribe(result -> log.info("{}", result));
+    for (int i = 0; i < 100; i++)
+    {
+      String message = "Message #" + i;
+      for (ChatRoomInfoTo chatRoom : chatRooms)
+      {
+        sendMessage(chatRoom, message)
+            .retryWhen(Retry.fixedDelay(10, Duration.ofSeconds(1)))
+            .map(MessageTo::toString)
+            .subscribe(result -> log.info(
+                "{} sent message \"{}\" to {}",
+                user,
+                message,
+                chatRoom));
+      }
+      try
+      {
+        Thread.sleep(ThreadLocalRandom.current().nextLong(700, 1000));
+      }
+      catch (Exception e)
+      {
+        throw new RuntimeException(e);
+      }
+    }
   }
 
   private Mono<MessageTo> sendMessage(