Add SAC test against cluster

Author: acogoluegnes

src/main/java/com/rabbitmq/stream/impl/StreamProducerBuilder.java

@@ -28,8 +28,8 @@
 
 class StreamProducerBuilder implements ProducerBuilder {
 
-  static final boolean DEFAULT_DYNAMIC_BATCH = true;
-//      Boolean.parseBoolean(System.getProperty("rabbitmq.stream.producer.dynamic.batch", "true"));
+  static final boolean DEFAULT_DYNAMIC_BATCH = Boolean.parseBoolean(System.getProperty("rabbitmq.stream.producer.dynamic.batch",
+   "true"));
 
   private final StreamEnvironment environment;
 
@@ -201,7 +201,7 @@ public Producer build() {
 
     if (this.routingConfiguration == null && this.superStream != null) {
       throw new IllegalArgumentException(
-          "A routing configuration must specified when a super stream is set");
+          "A routing configuration must be specified when a super stream is set");
     }
 
     if (this.stream != null) {

src/test/java/com/rabbitmq/stream/Cli.java

@@ -178,6 +178,30 @@ static List<ConnectionInfo> toConnectionInfoList(String json) {
     return GSON.fromJson(json, new TypeToken<List<ConnectionInfo>>() {}.getType());
   }
 
+  public static List<SubscriptionInfo> listGroupConsumers(String stream, String reference) {
+    ProcessState process =
+        rabbitmqStreams(
+            format(
+                "list_stream_group_consumers -q --stream %s --reference %s "
+                    + "--formatter table subscription_id,state",
+                stream, reference));
+
+    List<SubscriptionInfo> itemList = Collections.emptyList();
+    String content = process.output();
+    String[] lines = content.split(System.lineSeparator());
+    if (lines.length > 1) {
+      itemList = new ArrayList<>(lines.length - 1);
+      for (int i = 1; i < lines.length; i++) {
+        String line = lines[i];
+        String[] fields = line.split("\t");
+        String id = fields[0];
+        String state = fields[1].replace("\"", "");
+        itemList.add(new SubscriptionInfo(Integer.parseInt(id), state));
+      }
+    }
+    return itemList;
+  }
+
   public static void restartStream(String stream) {
     rabbitmqStreams(" restart_stream " + stream);
   }
@@ -420,6 +444,30 @@ public String toString() {
     }
   }
 
+  public static final class SubscriptionInfo {
+
+    private final int id;
+    private final String state;
+
+    public SubscriptionInfo(int id, String state) {
+      this.id = id;
+      this.state = state;
+    }
+
+    public int id() {
+      return this.id;
+    }
+
+    public String state() {
+      return this.state;
+    }
+
+    @Override
+    public String toString() {
+      return "SubscriptionInfo{id='" + id + '\'' + ", state='" + state + '\'' + '}';
+    }
+  }
+
   public static class ProcessState {
 
     private final InputStreamPumpState inputState;

src/test/java/com/rabbitmq/stream/impl/RecoveryClusterTest.java

@@ -41,15 +41,19 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
 import java.util.concurrent.atomic.AtomicReference;
+import java.util.stream.IntStream;
 import org.junit.jupiter.api.*;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.CsvSource;
+import org.junit.jupiter.params.provider.ValueSource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -201,15 +205,7 @@ void clusterRestart(boolean useLoadBalancer, boolean forceLeader) throws Interru
       syncs = consumers.stream().map(c -> c.waitForNewMessages(100)).collect(toList());
       syncs.forEach(s -> assertThat(s).completes());
 
-      nodes.forEach(
-          n -> {
-            LOGGER.info("Restarting node {}...", n);
-            Cli.restartNode(n);
-            LOGGER.info("Restarted node {}.", n);
-          });
-      LOGGER.info("Rebalancing...");
-      Cli.rebalance();
-      LOGGER.info("Rebalancing over.");
+      restartCluster();
 
       Thread.sleep(BACK_OFF_DELAY_POLICY.delay(0).toMillis());
 
@@ -291,8 +287,118 @@ void clusterRestart(boolean useLoadBalancer, boolean forceLeader) throws Interru
     }
   }
 
+  @ParameterizedTest
+  @ValueSource(booleans = {true, false})
+  void sacWithClusterRestart(boolean superStream) throws InterruptedException {
+    environment =
+        environmentBuilder
+            .uris(URIS)
+            .netty()
+            .bootstrapCustomizer(
+                b -> {
+                  b.option(
+                      ChannelOption.CONNECT_TIMEOUT_MILLIS,
+                      (int) BACK_OFF_DELAY_POLICY.delay(0).toMillis());
+                })
+            .environmentBuilder()
+            .maxConsumersByConnection(1)
+            .build();
+
+    int consumerCount = 3;
+    AtomicLong lastOffset = new AtomicLong(0);
+    String app = "app-name";
+    String s = TestUtils.streamName(testInfo);
+    ProducerState pState = null;
+    List<ConsumerState> consumers = Collections.emptyList();
+    try {
+      StreamCreator sCreator = environment.streamCreator().stream(s);
+      if (superStream) {
+        sCreator = sCreator.superStream().partitions(1).creator();
+      }
+      sCreator.create();
+
+      pState = new ProducerState(s, true, superStream, environment);
+      pState.start();
+
+      Map<Integer, Boolean> consumerStatus = new ConcurrentHashMap<>();
+      consumers =
+          IntStream.range(0, consumerCount)
+              .mapToObj(
+                  i ->
+                      new ConsumerState(
+                          s,
+                          environment,
+                          b -> {
+                            b.singleActiveConsumer()
+                                .name(app)
+                                .noTrackingStrategy()
+                                .consumerUpdateListener(
+                                    ctx -> {
+                                      consumerStatus.put(i, ctx.isActive());
+                                      return OffsetSpecification.offset(lastOffset.get());
+                                    });
+                            if (superStream) {
+                              b.superStream(s);
+                            } else {
+                              b.stream(s);
+                            }
+                          },
+                          (ctx, m) -> lastOffset.set(ctx.offset())))
+              .collect(toList());
+
+      Sync sync = pState.waitForNewMessages(100);
+      assertThat(sync).completes();
+      sync = consumers.get(0).waitForNewMessages(100);
+      assertThat(sync).completes();
+
+      List<Cli.SubscriptionInfo> subscriptions =
+          Cli.listGroupConsumers(superStream ? s + "-0" : s, app);
+      assertThat(subscriptions).hasSize(consumerCount);
+      assertThat(subscriptions.stream().filter(sub -> sub.state().startsWith("active")).count())
+          .isEqualTo(1);
+      assertThat(subscriptions.stream().filter(sub -> sub.state().startsWith("waiting")).count())
+          .isEqualTo(2);
+
+      restartCluster();
+
+      Thread.sleep(BACK_OFF_DELAY_POLICY.delay(0).toMillis());
+
+      sync = pState.waitForNewMessages(100);
+      assertThat(sync).completes(ASSERTION_TIMEOUT);
+      int activeIndex =
+          consumerStatus.entrySet().stream()
+              .filter(Map.Entry::getValue)
+              .map(Map.Entry::getKey)
+              .findFirst()
+              .orElseThrow(() -> new IllegalStateException("No active consumer found"));
+
+      sync = consumers.get(activeIndex).waitForNewMessages(100);
+      assertThat(sync).completes(ASSERTION_TIMEOUT);
+
+      subscriptions = Cli.listGroupConsumers(superStream ? s + "-0" : s, app);
+      assertThat(subscriptions).hasSize(consumerCount);
+      assertThat(subscriptions.stream().filter(sub -> sub.state().startsWith("active")).count())
+          .isEqualTo(1);
+      assertThat(subscriptions.stream().filter(sub -> sub.state().startsWith("waiting")).count())
+          .isEqualTo(2);
+
+    } finally {
+      if (pState != null) {
+        pState.close();
+      }
+      consumers.forEach(ConsumerState::close);
+      if (superStream) {
+        environment.deleteSuperStream(s);
+      } else {
+        environment.deleteStream(s);
+      }
+    }
+  }
+
   private static class ProducerState implements AutoCloseable {
 
+    private static final AtomicLong MSG_ID_SEQ = new AtomicLong(0);
+
     private static final byte[] BODY = "hello".getBytes(StandardCharsets.UTF_8);
 
     private final String stream;
@@ -306,9 +412,19 @@ private static class ProducerState implements AutoCloseable {
     final AtomicReference<Instant> lastExceptionInstant = new AtomicReference<>();
 
     private ProducerState(String stream, boolean dynamicBatch, Environment environment) {
+      this(stream, dynamicBatch, false, environment);
+    }
+
+    private ProducerState(
+        String stream, boolean dynamicBatch, boolean superStream, Environment environment) {
       this.stream = stream;
-      this.producer =
-          environment.producerBuilder().stream(stream).dynamicBatch(dynamicBatch).build();
+      ProducerBuilder builder = environment.producerBuilder().dynamicBatch(dynamicBatch);
+      if (superStream) {
+        builder.superStream(stream).routing(m -> m.getProperties().getMessageIdAsString());
+      } else {
+        builder.stream(stream);
+      }
+      this.producer = builder.build();
     }
 
     void start() {
@@ -327,7 +443,14 @@ void start() {
                       try {
                         this.limiter.acquire(1);
                         this.producer.send(
-                            producer.messageBuilder().addData(BODY).build(), confirmationHandler);
+                            producer
+                                .messageBuilder()
+                                .properties()
+                                .messageId(MSG_ID_SEQ.getAndIncrement())
+                                .messageBuilder()
+                                .addData(BODY)
+                                .build(),
+                            confirmationHandler);
                       } catch (Throwable e) {
                         this.lastException.set(e);
                         this.lastExceptionInstant.set(Instant.now());
@@ -380,16 +503,27 @@ private static class ConsumerState implements AutoCloseable {
     final AtomicReference<Runnable> postHandle = new AtomicReference<>(() -> {});
 
     private ConsumerState(String stream, Environment environment) {
+      this(stream, environment, b -> b.stream(stream), (ctx, m) -> {});
+    }
+
+    private ConsumerState(
+        String stream,
+        Environment environment,
+        java.util.function.Consumer<ConsumerBuilder> customizer,
+        MessageHandler delegateHandler) {
       this.stream = stream;
-      this.consumer =
-          environment.consumerBuilder().stream(stream)
+      ConsumerBuilder builder =
+          environment
+              .consumerBuilder()
               .offset(OffsetSpecification.first())
               .messageHandler(
                   (ctx, m) -> {
+                    delegateHandler.handle(ctx, m);
                     receivedCount.incrementAndGet();
                     postHandle.get().run();
-                  })
-              .build();
+                  });
+      customizer.accept(builder);
+      this.consumer = builder.build();
     }
 
     Sync waitForNewMessages(int messageCount) {
@@ -414,4 +548,16 @@ public void close() {
       this.consumer.close();
     }
   }
+
+  private static void restartCluster() {
+    nodes.forEach(
+        n -> {
+          LOGGER.info("Restarting node {}...", n);
+          Cli.restartNode(n);
+          LOGGER.info("Restarted node {}.", n);
+        });
+    LOGGER.info("Rebalancing...");
+    Cli.rebalance();
+    LOGGER.info("Rebalancing over.");
+  }
 }