How to use

closeSync

method

in

com.microsoft.azure.eventhubs.EventHubClient

@Override
public void close() {
  if (receiver != null) {
    try {
      receiver.close().whenComplete((voidargs, error) -> {
        try {
          if (error != null) {
            logger.error("Exception during receiver close phase" + error.toString());
          }
          ehClient.closeSync();
        } catch (Exception e) {
          logger.error("Exception during ehclient close phase" + e.toString());
        }
      }).get();
    } catch (InterruptedException e) {
      logger.error("Exception occured during close phase" + e.toString());
    } catch (ExecutionException e) {
      logger.error("Exception occured during close phase" + e.toString());
    }
    logger.info("closed eventhub receiver: partitionId=" + partitionId);
    receiver = null;
    ehClient = null;
  }
}

@Override
public void cleanup() {
  if (sender != null) {
    try {
      sender.close().whenComplete((voidargs, error) -> {
        try {
          if (error != null) {
            logger.error("Exception during sender cleanup phase" + error.toString());
          }
          ehClient.closeSync();
        } catch (Exception e) {
          logger.error("Exception during ehclient cleanup phase" + e.toString());
        }
      }).get();
    } catch (InterruptedException e) {
      logger.error("Exception occured during cleanup phase" + e.toString());
    } catch (ExecutionException e) {
      logger.error("Exception occured during cleanup phase" + e.toString());
    }
    logger.info("Eventhub Bolt cleaned up");
    sender = null;
    ehClient = null;
  }
}

@OnStopped
public void tearDown() throws ProcessException {
  for (final PartitionReceiver receiver : partitionToReceiverMap.values()) {
    if (null != receiver) {
      receiver.close();
    }
  }
  partitionToReceiverMap.clear();
  try {
    if (null != eventHubClient) {
      eventHubClient.closeSync();
    }
  } catch (final ServiceBusException e) {
    throw new ProcessException(e);
  }
}

@Override
public void close(long timeoutMS) {
 try {
  if (timeoutMS == EventHubClientManager.BLOCK_UNTIL_CLOSE) {
   eventHubClient.closeSync();
   eventHubClientExecutor.shutdown();
  } else {
   CompletableFuture<Void> future = eventHubClient.close();
   future.get(timeoutMS, TimeUnit.MILLISECONDS);
  }
 } catch (Exception e) {
  LOG.error("Closing the EventHub client failed", e);
 }
}

@Test
public void doAzureEventSourceSendTest() throws Exception {
ExecutorService executor = Executors.newSingleThreadExecutor();
final ConnectionStringBuilder connStr = new ConnectionStringBuilder().setNamespaceName("sitewhere")
  .setEventHubName("events").setSasKeyName("RootManageSharedAccessKey").setSasKey("xxx");
byte[] payloadBytes = EventsHelper.generateJsonMeasurementsMessage(DEVICE_TOKEN);
EventData sendEvent = EventData.create(payloadBytes);
final EventHubClient ehClient = EventHubClient.createSync(connStr.toString(), executor);
ehClient.sendSync(sendEvent);
ehClient.closeSync();
executor.shutdown();
}