private void Execute(Worker worker, Task task)
{
string taskType = task.TaskDefName;
try
{
if (!worker.PreAck(task))
{
m_logger.LogDebug($"Worker {taskType} decided not to ack the task {task.TaskId}");
return;
}
if (!client.Ack(task.TaskId, worker.Identity))
{
//WorkflowTaskMetrics.ackFailed(worker.getTaskDefName());
m_logger.LogError($"Ack failed for {taskType}, id {task.TaskId}");
return;
}
}
catch (Exception e)
{
m_logger.LogError($"ack exception for {worker.TaskDefName} : {e.Message}");
//WorkflowTaskMetrics.ackException(worker.getTaskDefName(), e);
return;
}
//Stopwatch sw = WorkflowTaskMetrics.executionTimer(worker.getTaskDefName());
TaskResult result = null;
try
{
m_logger.LogDebug($"Executing task {nameof(task)} on worker {nameof(worker)}");
result = worker.Execute(task);
result.WorkflowInstanceId = task.WorkflowInstanceId;
result.TaskId = task.TaskId;
}
catch (Exception e)
{
m_logger.LogError($"Unable to execute task {task} : {e.Message}");
if (result == null)
{
task.Status = Status.FAILED;
result = new TaskResult(task);
}
handleException(e, result, worker, false, task);
}
finally
{
//sw.stop();
}
m_logger.LogDebug($"Task {task.TaskId} executed by worker {nameof(worker)} with status {task.Status}");
UpdateWithRetry(m_updateRetryCount, task, result, worker);
}
private void UpdateWithRetry(int count, Task task, TaskResult result, Worker worker)
{
if (count < 0)
{
worker.OnErrorUpdate(task);
return;
}
try
{
client.UpdateTask(result);
}
catch (Exception t)
{
//WorkflowTaskMetrics.updateTaskError(worker.getTaskDefName(), t);
m_logger.LogError(new EventId(1), t, $"Unable to update {result} on count {count}");
Thread.Sleep(m_sleepWhenRetry);
UpdateWithRetry(--count, task, result, worker);
}
}
private void handleException(Exception t, TaskResult result, Worker worker, bool updateTask, Task task)
{
//WorkflowTaskMetrics.executionException(worker.getTaskDefName(), t);
result.Status = Status.FAILED;
result.ReasonForIncompletion = "Error while executing the task: " + t;
result.Logs.Add(t.StackTrace);
UpdateWithRetry(m_updateRetryCount, task, result, worker);
}
