protected PollForActivityTaskResponse pollTask()

in src/main/java/com/uber/cadence/internal/worker/ActivityPollTask.java [54:106]
49 lines of code
10 McCabe index (conditional complexity)

  protected PollForActivityTaskResponse pollTask() throws TException {
    options.getMetricsScope().counter(MetricsType.ACTIVITY_POLL_COUNTER).inc(1);
    Stopwatch sw = options.getMetricsScope().timer(MetricsType.ACTIVITY_POLL_LATENCY).start();
    PollForActivityTaskRequest pollRequest = new PollForActivityTaskRequest();
    pollRequest.setDomain(domain);
    pollRequest.setIdentity(options.getIdentity());
    pollRequest.setTaskList(new TaskList().setName(taskList));

    if (options.getTaskListActivitiesPerSecond() > 0) {
      TaskListMetadata metadata = new TaskListMetadata();
      metadata.setMaxTasksPerSecond(options.getTaskListActivitiesPerSecond());
      pollRequest.setTaskListMetadata(metadata);
    }

    if (log.isDebugEnabled()) {
      log.debug("poll request begin: " + pollRequest);
    }
    PollForActivityTaskResponse result;
    try {
      result = service.PollForActivityTask(pollRequest);
    } catch (InternalServiceError e) {
      options
          .getMetricsScope()
          .tagged(ImmutableMap.of(MetricsTag.CAUSE, INTERNAL_SERVICE_ERROR))
          .counter(MetricsType.ACTIVITY_POLL_TRANSIENT_FAILED_COUNTER)
          .inc(1);
      throw e;
    } catch (ServiceBusyError e) {
      options
          .getMetricsScope()
          .tagged(ImmutableMap.of(MetricsTag.CAUSE, SERVICE_BUSY))
          .counter(MetricsType.ACTIVITY_POLL_TRANSIENT_FAILED_COUNTER)
          .inc(1);
      throw e;
    } catch (TException e) {
      options.getMetricsScope().counter(MetricsType.ACTIVITY_POLL_FAILED_COUNTER).inc(1);
      throw e;
    }

    if (result == null || result.getTaskToken() == null) {
      if (log.isDebugEnabled()) {
        log.debug("poll request returned no task");
      }
      options.getMetricsScope().counter(MetricsType.ACTIVITY_POLL_NO_TASK_COUNTER).inc(1);
      return null;
    }

    if (log.isTraceEnabled()) {
      log.trace("poll request returned " + result);
    }
    sw.stop();
    return result;
  }