/// <summary> /// Consumes the next message off the queue. Set context.Success to <c>false</c> to *Release* the message back to the queue; otherwise it will be automatically deleted. /// </summary> /// <param name="consumeAction"></param> /// <param name="timeout"></param> /// <returns> /// Returns <c>false</c> if the queue is empty; otherwise <c>true</c>. /// </returns> public bool Consume(Action <QueueMessageContext <T>, T> consumeAction, int?timeout = null) { QueueMessage queueMessage = Next(timeout); if (queueMessage == null) { return(false); } var context = new QueueMessageContext <T> { Message = queueMessage, Success = true, Client = this }; try { consumeAction(context, queueMessage.ReadValueAs <T>()); } catch (Exception ex) { if (_errorHandler != null) { context.Success = false; _errorHandler(context, ex); } else { throw; } } finally { if (context.Success) { queueMessage.Delete(); } else { queueMessage.Release(_delay); } } return(true); }
/// <summary> /// Consumes the next message off the queue. Set context.Success to <c>false</c> to *Release* the message back to the /// queue; otherwise it will be automatically deleted. /// </summary> /// <param name="consumeAction"></param> /// <param name="timeout"></param> /// <returns> /// Returns <c>false</c> if the queue is empty; otherwise <c>true</c>. /// </returns> public async Task <bool> Consume(Action <QueueMessageContext <T>, T> consumeAction, int?timeout = null) { QueueMessage queueMessage = await Next(timeout); if (queueMessage == null) { return(false); } var context = new QueueMessageContext <T> { Message = queueMessage, Success = true, Client = this }; try { consumeAction(context, queueMessage.ReadValueAs <T>()); } catch (Exception ex) { if (_errorHandler != null) { context.Success = false; _errorHandler(context, ex); } else { throw; } } finally { DeleteOrReleaseMessage(context, queueMessage).Wait(); } return(true); }