Examples with Consumer com.rabbitmq.stream.Consumer used on opensource projects

Example 11 with Consumer

use of com.rabbitmq.stream.Consumer in project rabbitmq-stream-java-client by rabbitmq.

the class StreamConsumerTest method externalOffsetTrackingWithSubscriptionListener.

@Test
@DisabledIfRabbitMqCtlNotSet
void externalOffsetTrackingWithSubscriptionListener() throws Exception {
    AtomicInteger subscriptionListenerCallCount = new AtomicInteger(0);
    AtomicInteger receivedMessages = new AtomicInteger(0);
    AtomicLong offsetTracking = new AtomicLong(0);
    AtomicBoolean started = new AtomicBoolean(false);
    environment.consumerBuilder().stream(stream).offset(OffsetSpecification.first()).subscriptionListener(subscriptionContext -> {
        subscriptionListenerCallCount.incrementAndGet();
        OffsetSpecification offsetSpecification = started.get() ? OffsetSpecification.offset(offsetTracking.get() + 1) : subscriptionContext.offsetSpecification();
        subscriptionContext.offsetSpecification(offsetSpecification);
    }).messageHandler((context, message) -> {
        receivedMessages.incrementAndGet();
        offsetTracking.set(context.offset());
        started.set(true);
    }).build();
    int messageCount = 10_000;
    Producer producer = environment.producerBuilder().stream(stream).build();
    Runnable publish = () -> IntStream.range(0, messageCount).forEach(i -> producer.send(producer.messageBuilder().addData("".getBytes()).build(), confirmationStatus -> {
    }));
    publish.run();
    waitAtMost(5, () -> receivedMessages.get() == messageCount);
    assertThat(offsetTracking.get()).isGreaterThanOrEqualTo(messageCount - 1);
    Host.killConnection("rabbitmq-stream-consumer-0");
    waitAtMost(recoveryInitialDelay.multipliedBy(2), () -> subscriptionListenerCallCount.get() == 2);
    publish.run();
    waitAtMost(5, () -> receivedMessages.get() == messageCount * 2);
    assertThat(offsetTracking.get()).isGreaterThanOrEqualTo(messageCount * 2 - 1);
}

Example 12 with Consumer

use of com.rabbitmq.stream.Consumer in project rabbitmq-stream-java-client by rabbitmq.

the class StreamConsumerBuilder method build.

@Override
public Consumer build() {
    if (this.stream == null && this.superStream == null) {
        throw new IllegalArgumentException("A stream must be specified");
    }
    if (this.stream != null && this.superStream != null) {
        throw new IllegalArgumentException("Stream and superStream cannot be set at the same time");
    }
    if (this.name == null && (this.autoTrackingStrategy != null || this.manualTrackingStrategy != null)) {
        throw new IllegalArgumentException("A name must be set if a tracking strategy is specified");
    }
    this.environment.maybeInitializeLocator();
    TrackingConfiguration trackingConfiguration;
    if (this.autoTrackingStrategy != null) {
        trackingConfiguration = new TrackingConfiguration(true, true, this.autoTrackingStrategy.messageCountBeforeStorage, this.autoTrackingStrategy.flushInterval, Duration.ZERO);
    } else if (this.manualTrackingStrategy != null) {
        trackingConfiguration = new TrackingConfiguration(true, false, -1, Duration.ZERO, this.manualTrackingStrategy.checkInterval);
    } else if (this.name != null) {
        // the default tracking strategy
        trackingConfiguration = new TrackingConfiguration(true, true, 10_000, Duration.ofSeconds(5), Duration.ZERO);
    } else {
        trackingConfiguration = new TrackingConfiguration(false, false, -1, Duration.ZERO, Duration.ZERO);
    }
    Consumer consumer;
    if (this.stream != null) {
        consumer = new StreamConsumer(this.stream, this.offsetSpecification, this.messageHandler, this.name, this.environment, trackingConfiguration, this.lazyInit, this.subscriptionListener);
        environment.addConsumer((StreamConsumer) consumer);
    } else {
        consumer = new SuperStreamConsumer(this, this.superStream, this.environment, trackingConfiguration);
    }
    return consumer;
}

Example 13 with Consumer

use of com.rabbitmq.stream.Consumer in project spring-cloud-stream by spring-cloud.

the class RabbitStreamMessageHandlerTests method convertAndSend.

@Test
void convertAndSend() throws InterruptedException {
    Environment env = Environment.builder().lazyInitialization(true).addressResolver(add -> new Address("localhost", RABBITMQ.getMappedPort(5552))).build();
    try {
        env.deleteStream("stream.stream");
    } catch (Exception e) {
    }
    env.streamCreator().stream("stream.stream").create();
    RabbitStreamTemplate streamTemplate = new RabbitStreamTemplate(env, "stream.stream");
    RabbitStreamMessageHandler handler = new RabbitStreamMessageHandler(streamTemplate);
    handler.setSync(true);
    handler.handleMessage(MessageBuilder.withPayload("foo").setHeader("bar", "baz").build());
    CountDownLatch latch = new CountDownLatch(1);
    AtomicReference<com.rabbitmq.stream.Message> received = new AtomicReference<>();
    Consumer consumer = env.consumerBuilder().stream("stream.stream").offset(OffsetSpecification.first()).messageHandler((context, msg) -> {
        received.set(msg);
        latch.countDown();
    }).build();
    assertThat(latch.await(10, TimeUnit.SECONDS)).isTrue();
    assertThat(received.get()).isNotNull();
    assertThat(received.get().getBodyAsBinary()).isEqualTo("foo".getBytes());
    assertThat((String) received.get().getApplicationProperties().get("bar")).isEqualTo("baz");
    consumer.close();
    handler.stop();
}

Example 14 with Consumer

use of com.rabbitmq.stream.Consumer in project spring-cloud-stream by spring-cloud.

the class RabbitStreamMessageHandlerTests method sendNative.

@Test
@Disabled
void sendNative() throws InterruptedException {
    Environment env = Environment.builder().lazyInitialization(true).build();
    try {
        env.deleteStream("stream.stream");
    } catch (Exception e) {
    }
    env.streamCreator().stream("stream.stream").create();
    RabbitStreamTemplate streamTemplate = new RabbitStreamTemplate(env, "stream.stream");
    RabbitStreamMessageHandler handler = new RabbitStreamMessageHandler(streamTemplate);
    handler.setSync(true);
    handler.handleMessage(MessageBuilder.withPayload(streamTemplate.messageBuilder().addData("foo".getBytes()).applicationProperties().entry("bar", "baz").messageBuilder().build()).build());
    CountDownLatch latch = new CountDownLatch(1);
    AtomicReference<com.rabbitmq.stream.Message> received = new AtomicReference<>();
    Consumer consumer = env.consumerBuilder().stream("stream.stream").offset(OffsetSpecification.first()).messageHandler((context, msg) -> {
        received.set(msg);
        latch.countDown();
    }).build();
    assertThat(latch.await(10, TimeUnit.SECONDS)).isTrue();
    assertThat(received.get()).isNotNull();
    assertThat(received.get().getBodyAsBinary()).isEqualTo("foo".getBytes());
    assertThat((String) received.get().getApplicationProperties().get("bar")).isEqualTo("baz");
    consumer.close();
    handler.stop();
}

Example 15 with Consumer

use of com.rabbitmq.stream.Consumer in project rabbitmq-stream-java-client by rabbitmq.

the class StreamPerfTest method call.

@Override
public Integer call() throws Exception {
    maybeDisplayVersion();
    maybeDisplayEnvironmentVariablesHelp();
    overridePropertiesWithEnvironmentVariables();
    Codec codec = createCodec(this.codecClass);
    ByteBufAllocator byteBufAllocator = ByteBufAllocator.DEFAULT;
    CompositeMeterRegistry meterRegistry = new CompositeMeterRegistry();
    String metricsPrefix = "rabbitmq.stream";
    this.metricsCollector = new MicrometerMetricsCollector(meterRegistry, metricsPrefix);
    Counter producerConfirm = meterRegistry.counter(metricsPrefix + ".producer_confirmed");
    Supplier<String> memoryReportSupplier;
    if (this.memoryReport) {
        long physicalMemory = Utils.physicalMemory();
        String physicalMemoryReport = physicalMemory == 0 ? "" : format(", physical memory %s (%d bytes)", Utils.formatByte(physicalMemory), physicalMemory);
        this.out.println(format("Max memory %s (%d bytes), max direct memory %s (%d bytes)%s", Utils.formatByte(Runtime.getRuntime().maxMemory()), Runtime.getRuntime().maxMemory(), Utils.formatByte(PlatformDependent.maxDirectMemory()), PlatformDependent.maxDirectMemory(), physicalMemoryReport));
        if (byteBufAllocator instanceof ByteBufAllocatorMetricProvider) {
            ByteBufAllocatorMetric allocatorMetric = ((ByteBufAllocatorMetricProvider) byteBufAllocator).metric();
            memoryReportSupplier = () -> {
                long usedHeapMemory = allocatorMetric.usedHeapMemory();
                long usedDirectMemory = allocatorMetric.usedDirectMemory();
                return format("Used heap memory %s (%d bytes), used direct memory %s (%d bytes)", Utils.formatByte(usedHeapMemory), usedHeapMemory, Utils.formatByte(usedDirectMemory), usedDirectMemory);
            };
        } else {
            memoryReportSupplier = () -> "";
        }
    } else {
        memoryReportSupplier = () -> "";
    }
    this.performanceMetrics = new DefaultPerformanceMetrics(meterRegistry, metricsPrefix, this.summaryFile, this.includeByteRates, this.confirmLatency, memoryReportSupplier, this.out);
    // we need to store a long in it
    this.messageSize = this.messageSize < 8 ? 8 : this.messageSize;
    ShutdownService shutdownService = new ShutdownService();
    try {
        MonitoringContext monitoringContext = new MonitoringContext(this.monitoringPort, meterRegistry);
        this.monitorings.forEach(m -> m.configure(monitoringContext));
        monitoringContext.start();
        shutdownService.wrap(closeStep("Closing monitoring context", monitoringContext::close));
        Runtime.getRuntime().addShutdownHook(new Thread(() -> shutdownService.close()));
        // FIXME add confirm latency
        ScheduledExecutorService envExecutor = Executors.newScheduledThreadPool(Math.max(Runtime.getRuntime().availableProcessors(), this.producers), new NamedThreadFactory("stream-perf-test-env-"));
        shutdownService.wrap(closeStep("Closing environment executor", () -> envExecutor.shutdownNow()));
        boolean tls = isTls(this.uris);
        AddressResolver addrResolver;
        if (loadBalancer) {
            int defaultPort = tls ? Client.DEFAULT_TLS_PORT : Client.DEFAULT_PORT;
            List<Address> addresses = this.uris.stream().map(uri -> {
                try {
                    return new URI(uri);
                } catch (URISyntaxException e) {
                    throw new IllegalArgumentException("Error while parsing URI " + uri + ": " + e.getMessage());
                }
            }).map(uriItem -> new Address(uriItem.getHost() == null ? "localhost" : uriItem.getHost(), uriItem.getPort() == -1 ? defaultPort : uriItem.getPort())).collect(Collectors.toList());
            AtomicInteger connectionAttemptCount = new AtomicInteger(0);
            addrResolver = address -> addresses.get(connectionAttemptCount.getAndIncrement() % addresses.size());
        } else {
            if (this.addressResolver == null) {
                addrResolver = address -> address;
            } else {
                // should happen only in tests
                addrResolver = this.addressResolver;
            }
        }
        EnvironmentBuilder environmentBuilder = Environment.builder().id("stream-perf-test").uris(this.uris).addressResolver(addrResolver).scheduledExecutorService(envExecutor).metricsCollector(metricsCollector).byteBufAllocator(byteBufAllocator).codec(codec).maxProducersByConnection(this.producersByConnection).maxTrackingConsumersByConnection(this.trackingConsumersByConnection).maxConsumersByConnection(this.consumersByConnection).rpcTimeout(Duration.ofSeconds(this.rpcTimeout));
        ChannelCustomizer channelCustomizer = channel -> {
        };
        if (tls) {
            TlsConfiguration tlsConfiguration = environmentBuilder.tls();
            tlsConfiguration = tlsConfiguration.sslContext(SslContextBuilder.forClient().trustManager(Utils.TRUST_EVERYTHING_TRUST_MANAGER).build());
            environmentBuilder = tlsConfiguration.environmentBuilder();
            if (!this.sniServerNames.isEmpty()) {
                channelCustomizer = channelCustomizer.andThen(ch -> {
                    SslHandler sslHandler = ch.pipeline().get(SslHandler.class);
                    if (sslHandler != null) {
                        SSLParameters sslParameters = sslHandler.engine().getSSLParameters();
                        sslParameters.setServerNames(this.sniServerNames);
                        sslHandler.engine().setSSLParameters(sslParameters);
                    }
                });
            }
        }
        Environment environment = environmentBuilder.channelCustomizer(channelCustomizer).build();
        shutdownService.wrap(closeStep("Closing environment(s)", () -> environment.close()));
        streams = Utils.streams(this.streamCount, this.streams);
        for (String stream : streams) {
            StreamCreator streamCreator = environment.streamCreator().stream(stream).maxLengthBytes(this.maxLengthBytes).maxSegmentSizeBytes(this.maxSegmentSize).leaderLocator(this.leaderLocator);
            if (this.maxAge != null) {
                streamCreator.maxAge(this.maxAge);
            }
            try {
                streamCreator.create();
            } catch (StreamException e) {
                if (e.getCode() == Constants.RESPONSE_CODE_PRECONDITION_FAILED) {
                    String message = String.format("Warning: stream '%s' already exists, but with different properties than " + "max-length-bytes=%s, stream-max-segment-size-bytes=%s, queue-leader-locator=%s", stream, this.maxLengthBytes, this.maxSegmentSize, this.leaderLocator);
                    if (this.maxAge != null) {
                        message += String.format(", max-age=%s", this.maxAge);
                    }
                    this.out.println(message);
                } else {
                    throw e;
                }
            }
        }
        if (this.deleteStreams) {
            shutdownService.wrap(closeStep("Deleting stream(s)", () -> {
                for (String stream : streams) {
                    LOGGER.debug("Deleting {}", stream);
                    try {
                        environment.deleteStream(stream);
                        LOGGER.debug("Deleted {}", stream);
                    } catch (Exception e) {
                        LOGGER.warn("Could not delete stream {}: {}", stream, e.getMessage());
                    }
                }
            }));
        }
        List<Producer> producers = Collections.synchronizedList(new ArrayList<>(this.producers));
        List<Runnable> producerRunnables = IntStream.range(0, this.producers).mapToObj(i -> {
            Runnable rateLimiterCallback;
            if (this.rate > 0) {
                RateLimiter rateLimiter = RateLimiter.create(this.rate);
                rateLimiterCallback = () -> rateLimiter.acquire(1);
            } else {
                rateLimiterCallback = () -> {
                };
            }
            String stream = stream(this.streams, i);
            ProducerBuilder producerBuilder = environment.producerBuilder();
            String producerName = this.producerNameStrategy.apply(stream, i + 1);
            if (producerName != null && !producerName.trim().isEmpty()) {
                producerBuilder = producerBuilder.name(producerName).confirmTimeout(Duration.ZERO);
            }
            Producer producer = producerBuilder.subEntrySize(this.subEntrySize).batchSize(this.batchSize).compression(this.compression == Compression.NONE ? null : this.compression).maxUnconfirmedMessages(this.confirms).stream(stream).build();
            AtomicLong messageCount = new AtomicLong(0);
            ConfirmationHandler confirmationHandler;
            if (this.confirmLatency) {
                final PerformanceMetrics metrics = this.performanceMetrics;
                final int divisor = Utils.downSamplingDivisor(this.rate);
                confirmationHandler = confirmationStatus -> {
                    if (confirmationStatus.isConfirmed()) {
                        producerConfirm.increment();
                        // this should not affect the metric much
                        if (messageCount.incrementAndGet() % divisor == 0) {
                            try {
                                long time = Utils.readLong(confirmationStatus.getMessage().getBodyAsBinary());
                                // see below why we use current time to measure latency
                                metrics.confirmLatency(System.currentTimeMillis() - time, TimeUnit.MILLISECONDS);
                            } catch (Exception e) {
                            // not able to read the body, something wrong?
                            }
                        }
                    }
                };
            } else {
                confirmationHandler = confirmationStatus -> {
                    if (confirmationStatus.isConfirmed()) {
                        producerConfirm.increment();
                    }
                };
            }
            producers.add(producer);
            return (Runnable) () -> {
                final int msgSize = this.messageSize;
                try {
                    while (true && !Thread.currentThread().isInterrupted()) {
                        rateLimiterCallback.run();
                        // Using current time for interoperability with other tools
                        // and also across different processes.
                        // This is good enough to measure duration/latency this way
                        // in a performance tool.
                        long creationTime = System.currentTimeMillis();
                        byte[] payload = new byte[msgSize];
                        Utils.writeLong(payload, creationTime);
                        producer.send(producer.messageBuilder().addData(payload).build(), confirmationHandler);
                    }
                } catch (Exception e) {
                    if (e instanceof InterruptedException || (e.getCause() != null && e.getCause() instanceof InterruptedException)) {
                        LOGGER.info("Publisher #{} thread interrupted", i, e);
                    } else {
                        LOGGER.warn("Publisher #{} crashed", i, e);
                    }
                }
            };
        }).collect(Collectors.toList());
        List<Consumer> consumers = Collections.synchronizedList(IntStream.range(0, this.consumers).mapToObj(i -> {
            final PerformanceMetrics metrics = this.performanceMetrics;
            AtomicLong messageCount = new AtomicLong(0);
            String stream = stream(streams, i);
            ConsumerBuilder consumerBuilder = environment.consumerBuilder();
            consumerBuilder = consumerBuilder.stream(stream).offset(this.offset);
            if (this.storeEvery > 0) {
                String consumerName = this.consumerNameStrategy.apply(stream, i + 1);
                consumerBuilder = consumerBuilder.name(consumerName).autoTrackingStrategy().messageCountBeforeStorage(this.storeEvery).builder();
            }
            // we assume the publishing rate is the same order as the consuming rate
            // we actually don't want to downsample for low rates
            final int divisor = Utils.downSamplingDivisor(this.rate);
            consumerBuilder = consumerBuilder.messageHandler((context, message) -> {
                // this should not affect the metric much
                if (messageCount.incrementAndGet() % 100 == divisor) {
                    try {
                        long time = Utils.readLong(message.getBodyAsBinary());
                        // see above why we use current time to measure latency
                        metrics.latency(System.currentTimeMillis() - time, TimeUnit.MILLISECONDS);
                    } catch (Exception e) {
                    // not able to read the body, maybe not a message from the
                    // tool
                    }
                    metrics.offset(context.offset());
                }
            });
            Consumer consumer = consumerBuilder.build();
            return consumer;
        }).collect(Collectors.toList()));
        shutdownService.wrap(closeStep("Closing consumers", () -> {
            for (Consumer consumer : consumers) {
                consumer.close();
            }
        }));
        ExecutorService executorService;
        if (this.producers > 0) {
            executorService = Executors.newFixedThreadPool(this.producers, new NamedThreadFactory("stream-perf-test-publishers-"));
            for (Runnable producer : producerRunnables) {
                this.out.println("Starting producer");
                executorService.submit(producer);
            }
        } else {
            executorService = null;
        }
        shutdownService.wrap(closeStep("Closing producers", () -> {
            for (Producer p : producers) {
                p.close();
            }
        }));
        shutdownService.wrap(closeStep("Closing producers executor service", () -> {
            if (executorService != null) {
                executorService.shutdownNow();
            }
        }));
        String metricsHeader = "Arguments: " + String.join(" ", arguments);
        this.performanceMetrics.start(metricsHeader);
        shutdownService.wrap(closeStep("Closing metrics", () -> this.performanceMetrics.close()));
        CountDownLatch latch = new CountDownLatch(1);
        Runtime.getRuntime().addShutdownHook(new Thread(() -> latch.countDown()));
        try {
            latch.await();
        } catch (InterruptedException e) {
        // moving on to the closing sequence
        }
    } finally {
        shutdownService.close();
    }
    return 0;
}