[fix][artemis] Fix Artemis asynchronous send and acknowledgement configuration (#343)

* [fix][artemis] Fix Artemis confirmation windows size configuration

- set to 1MB which is a more sensible default value
- see https://activemq.apache.org/components/artemis/documentation/javadocs/javadoc-latest/org/apache/activemq/artemis/api/core/client/SendAcknowledgementHandler.html
  - configuring confirmation window is required for async message sending with Artemis

* [fix][artemis] Fix reporting of failed sends

* [fix][artemis] Use async sending and acknowledgements

* Reformat with spotless

Author: lhotari

driver-artemis/src/main/java/io/openmessaging/benchmark/driver/artemis/ArtemisBenchmarkDriver.java

@@ -49,7 +49,14 @@ public void initialize(File configurationFile, StatsLogger statsLogger) throws I
         log.info("ActiveMQ Artemis driver configuration: {}", writer.writeValueAsString(config));
         try {
             ServerLocator serverLocator = ActiveMQClient.createServerLocator(config.brokerAddress);
-            serverLocator.setConfirmationWindowSize(1000);
+            // confirmation window size is in bytes, set to 1MB
+            serverLocator.setConfirmationWindowSize(1024 * 1024);
+            // use asynchronous sending of messages where SendAcknowledgementHandler reports
+            // success/failure
+            serverLocator.setBlockOnDurableSend(false);
+            serverLocator.setBlockOnNonDurableSend(false);
+            // use async acknowledgement
+            serverLocator.setBlockOnAcknowledge(false);
 
             sessionFactory = serverLocator.createSessionFactory();
             session = sessionFactory.createSession();

driver-artemis/src/main/java/io/openmessaging/benchmark/driver/artemis/ArtemisBenchmarkProducer.java

@@ -18,10 +18,12 @@
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 import org.apache.activemq.artemis.api.core.ActiveMQException;
+import org.apache.activemq.artemis.api.core.Message;
 import org.apache.activemq.artemis.api.core.client.ClientMessage;
 import org.apache.activemq.artemis.api.core.client.ClientProducer;
 import org.apache.activemq.artemis.api.core.client.ClientSession;
 import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
+import org.apache.activemq.artemis.api.core.client.SendAcknowledgementHandler;
 
 public class ArtemisBenchmarkProducer implements BenchmarkProducer {
 
@@ -51,8 +53,16 @@ public CompletableFuture<Void> sendAsync(Optional<String> key, byte[] payload) {
         try {
             producer.send(
                     msg,
-                    message -> {
-                        future.complete(null);
+                    new SendAcknowledgementHandler() {
+                        @Override
+                        public void sendAcknowledged(Message message) {
+                            future.complete(null);
+                        }
+
+                        @Override
+                        public void sendFailed(Message message, Exception e) {
+                            future.completeExceptionally(e);
+                        }
                     });
         } catch (ActiveMQException e) {
             future.completeExceptionally(e);