Examples with FibonacciBackoffAlgorithm com.meltwater.rxrabbit.util.FibonacciBackoffAlgorithm used on opensource projects

Example 1 with FibonacciBackoffAlgorithm

use of com.meltwater.rxrabbit.util.FibonacciBackoffAlgorithm in project rxrabbit by meltwater.

the class LoadGenerator method publishTestMessages.

public static void publishTestMessages(BrokerAddresses addresses, String outputExchange, long nrToPublish) throws IOException {
    ConnectionSettings connectionSettings = new ConnectionSettings();
    connectionSettings.withHeartbeatSecs(5);
    connectionSettings.withShutdownTimeoutMillis(10_000);
    PublisherSettings publisherSettings = new PublisherSettings();
    publisherSettings.withPublisherConfirms(true);
    publisherSettings.withBackoffAlgorithm(new FibonacciBackoffAlgorithm());
    publisherSettings.withRetryCount(10);
    ChannelFactory channelFactory = new DefaultChannelFactory(addresses, connectionSettings);
    PublisherFactory publisherFactory = new DefaultPublisherFactory(channelFactory, publisherSettings);
    final RabbitPublisher publish = publisherFactory.createPublisher();
    List<Long> ids = new ArrayList<>();
    for (long i = 1; i <= nrToPublish; i++) {
        ids.add(i);
    }
    log.infoWithParams("Publishing messages to exchange.", "numToPublish", nrToPublish, "exchange", outputExchange);
    from(ids).flatMap(id -> {
        AMQP.BasicProperties.Builder builder = new AMQP.BasicProperties().builder();
        builder.messageId(String.valueOf(id));
        builder.deliveryMode(DeliveryMode.persistent.code);
        builder.appId("load-generator");
        String msgPayload = "Message nr " + id;
        return publish.call(new Exchange(outputExchange), new RoutingKey("routing.key"), builder.build(), new Payload(msgPayload.getBytes(Charsets.UTF_8))).toObservable();
    }).doOnError(throwable -> log.errorWithParams("Unexpected error when publishing.", throwable)).timeout(30, TimeUnit.SECONDS).toBlocking().last();
    log.infoWithParams("All messages sent to exchange.", "numSent", nrToPublish, "exchange", outputExchange);
    publish.close();
}