private void OnTimeoutCallback(Message message)
{
var changeVisibilityRequest = new ChangeMessageVisibilityRequest
{
QueueUrl = _queueUrl,
VisibilityTimeout = 30,
ReceiptHandle = message.ReceiptHandle
};
_amazonSqsClient.ChangeMessageVisibilityAsync(changeVisibilityRequest, CancellationToken.None).RunSynchronously();
}
private IAsyncTask CreateRenewalTaskForMessage(Message message, string queueUrl, IAmazonSQS client)
{
return(m_amazonInternalSettings.AsyncTaskFactory.Create($"RenewPeekLock-{message.MessageId}", async() =>
{
m_log.Info("Renewing peek lock for message with ID {messageId}", message.MessageId);
var request = new ChangeMessageVisibilityRequest(queueUrl, message.ReceiptHandle, (int)m_amazonInternalSettings.AmazonPeekLockDuration.PeekLockDuration.TotalSeconds);
await client.ChangeMessageVisibilityAsync(request);
}, intervalSeconds: (int)m_amazonInternalSettings.AmazonPeekLockDuration.PeekLockRenewalInterval.TotalSeconds, prettyInsignificant: true));
}
public bool ChangeVisibility(ChangeMessageVisibilityRequest request)
{
if (request == null)
{
return(false);
}
var response = SqsClient.ChangeMessageVisibility(request);
return(response != null);
}
/// <summary>
/// add some time so that we can continue to work on this message
/// </summary>
/// <param name="recieptHandle"></param>
/// <param name="extensionInSeconds"></param>
/// <param name="highPriority"></param>
/// <returns></returns>
public bool ExtendMessageOwnerShip(string recieptHandle, int extensionInSeconds)
{
ChangeMessageVisibilityRequest changeMessageVisibilityRequest = new ChangeMessageVisibilityRequest
{
ReceiptHandle = recieptHandle,
VisibilityTimeout = extensionInSeconds,
QueueUrl = _QueueUrl
};
ChangeMessageVisibilityResponse ignoreThis = _AmazonSQSClient.ChangeMessageVisibilityAsync(changeMessageVisibilityRequest).Result;
return(ignoreThis.HttpStatusCode == System.Net.HttpStatusCode.OK);
}
public IRequestContext Marshall(ChangeMessageVisibilityRequest input)
{
IRequestContext context = new RequestContext();
context.AddParametr("Action", input.ActionName);
context.AddParametr("Version", YandexMqConfig.DEFAULT_SERVICE_VERSION);
context.AddParametr("QueueUrl", input.QueueUrl);
context.AddParametr("ReceiptHandle", input.ReceiptHandle);
context.AddParametr("VisibilityTimeout", input.VisibilityTimeout.ToString());
return(context);
}
public async Task ChangeVisibilityTimeout(VQSqsQueueResponse receipt, TimeSpan visibilityTimeout)
{
var client = GetClient;
var obj = new ChangeMessageVisibilityRequest
{
ReceiptHandle = receipt.Receipt,
QueueUrl = await GetQueueUrl(client, receipt.QueueName),
VisibilityTimeout = Convert.ToInt32(visibilityTimeout.TotalSeconds),
};
var response = await client.ChangeMessageVisibilityAsync(obj);
}
internal async Task ChangeMessageVisibilityAsync(
string receiptHandle,
TimeSpan timeout,
CancellationToken cancellationToken)
{
var visibilityRequest = new ChangeMessageVisibilityRequest
{
QueueUrl = _sqsQueue.Uri.ToString(),
ReceiptHandle = receiptHandle,
VisibilityTimeout = (int)timeout.TotalSeconds,
};
await _sqsQueue.Client.ChangeMessageVisibilityAsync(visibilityRequest, cancellationToken).ConfigureAwait(false);
}
internal ChangeMessageVisibilityResponse ChangeMessageVisibility(ChangeMessageVisibilityRequest request)
{
var task = ChangeMessageVisibilityAsync(request);
try
{
return(task.Result);
}
catch (AggregateException e)
{
ExceptionDispatchInfo.Capture(e.InnerException).Throw();
return(null);
}
}
private async Task ChangeVisibilityTimeOutAsyncTask(SQSEvent.SQSMessage message, ILambdaLogger contextLogger, int timeoutSeconds)
{
contextLogger.Log($" *** about to change visibility timeout to {timeoutSeconds} seconds***");
var batRequest = new ChangeMessageVisibilityRequest
{
ReceiptHandle = message.ReceiptHandle,
VisibilityTimeout = timeoutSeconds,
QueueUrl = InputQueueUrl
};
var response = await this.SqSClient.ChangeMessageVisibilityAsync(batRequest);
contextLogger.Log($" *** visibility timeout result status code is {response.HttpStatusCode} ***");
}
public override async Task RenewLockAsync(IQueueEntry <T> queueEntry)
{
_logger.Debug("Queue {0} renew lock item: {1}", _options.Name, queueEntry.Id);
var entry = ToQueueEntry(queueEntry);
var request = new ChangeMessageVisibilityRequest {
QueueUrl = _queueUrl,
VisibilityTimeout = (int)_options.WorkItemTimeout.TotalSeconds,
ReceiptHandle = entry.UnderlyingMessage.ReceiptHandle
};
await _client.Value.ChangeMessageVisibilityAsync(request).AnyContext();
_logger.Trace("Renew lock done: {0}", queueEntry.Id);
}
IAsyncTask CreateRenewalTaskForMessage(Message message, IAmazonSQS client)
{
return(_asyncTaskFactory.Create(
$"RenewPeekLock-{message.MessageId}",
async() =>
{
_log.Info("Renewing peek lock for message with ID {messageId}", message.MessageId);
var request = new ChangeMessageVisibilityRequest(_queueUrl, message.ReceiptHandle, (int)_peekLockDuration.TotalSeconds);
await client.ChangeMessageVisibilityAsync(request).ConfigureAwait(false);
},
intervalSeconds: (int)_peekLockRenewalInterval.TotalSeconds,
prettyInsignificant: true
));
}
public Task <ChangeMessageVisibilityResponse> ChangeMessageVisibilityAsync(ChangeMessageVisibilityRequest request, CancellationToken cancellationToken = default)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
var option = new InvokeOptions()
{
OriginalRequest = request,
RequestMarshaller = new ChangeMessageVisibilityRequestMarshaller(),
ResponseUnmarshaller = new ChangeMessageVisibilityResponseUnmarshaller()
};
return(InvokeAsync <ChangeMessageVisibilityResponse>(option, cancellationToken));
}
public override async Task RenewLockAsync(MessageEnvelope message, long lockTimeout)
{
CheckOpened(message.CorrelationId);
// Extend the message visibility
var envelope = (Message)message.Reference;
if (envelope != null)
{
var request = new ChangeMessageVisibilityRequest()
{
QueueUrl = _queue,
ReceiptHandle = envelope.ReceiptHandle,
VisibilityTimeout = (int)(lockTimeout / 1000)
};
await _client.ChangeMessageVisibilityAsync(request, _cancel.Token);
_logger.Trace(message.CorrelationId, "Renewed lock for message {0} at {1}", message, this);
}
}
public bool ChangeVisibility(ChangeMessageVisibilityRequest request)
{
if (request.ReceiptHandle.Equals(FakeBatchItemFailString, StringComparison.OrdinalIgnoreCase))
{
return(false);
}
var item = GetInFlightItem(request.ReceiptHandle);
if (request.VisibilityTimeout <= 0)
{
RequeueInFlightMessage(request.ReceiptHandle, force: true);
}
else
{
item.InFlightUntil = item.InFlightUntil += request.VisibilityTimeout;
}
return(true);
}
private async Task NoticeFailureAsync(SQSQueueSetting setting, Message message, int count = 0)
{
try
{
var changeRequest = new ChangeMessageVisibilityRequest(setting.QueueUrl, message.ReceiptHandle, 0);
await this.SQSClient.ChangeMessageVisibilityAsync(changeRequest);
this.logger.LogInformation($"Change visibility message (id:{message.MessageId})");
}
catch (Exception ex)
{
await this.NoticeFailureAsync(setting, message, count ++);
if (count >= 10)
{
this.logger.LogCritical(ex, $"Critical Error Can't change visibility message (id:{message.MessageId})");
throw;
}
}
}
public override async Task AbandonAsync(MessageEnvelope message)
{
CheckOpened(message.CorrelationId);
// Make the message immediately visible
var envelope = (Message)message.Reference;
if (envelope != null)
{
var request = new ChangeMessageVisibilityRequest()
{
QueueUrl = _queue,
ReceiptHandle = envelope.ReceiptHandle,
VisibilityTimeout = 0
};
await _client.ChangeMessageVisibilityAsync(request, _cancel.Token);
message.Reference = null;
_logger.Trace(message.CorrelationId, "Abandoned message {0} at {1}", message, this);
}
}
public static void SQSChangeMessageVisibility()
{
#region SQSChangeMessageVisibility
var client = new AmazonSQSClient();
var url = "https://sqs.us-east-1.amazonaws.com/80398EXAMPLE/MyTestQueue";
// Receive messages.
var rcvRequest = new ReceiveMessageRequest
{
AttributeNames = new List <string>()
{
"All"
},
QueueUrl = url
};
var rcvResponse = client.ReceiveMessage(rcvRequest);
// Change visibility timeout for each message.
if (rcvResponse.Messages.Count > 0)
{
foreach (var message in rcvResponse.Messages)
{
var visRequest = new ChangeMessageVisibilityRequest
{
QueueUrl = url,
ReceiptHandle = message.ReceiptHandle,
VisibilityTimeout = (int)TimeSpan.FromMinutes(10).TotalSeconds
};
client.ChangeMessageVisibility(visRequest);
}
}
else
{
Console.WriteLine("No messages to change visibility for.");
}
#endregion
}
/**
* Convert ChangeMessageVisibilityRequest to name value pairs
*/
private IDictionary <String, String> ConvertChangeMessageVisibility(ChangeMessageVisibilityRequest request)
{
IDictionary <String, String> parameters = new Dictionary <String, String>();
parameters.Add("Action", "ChangeMessageVisibility");
if (request.IsSetQueueUrl())
{
parameters.Add("QueueUrl", request.QueueUrl);
}
if (request.IsSetReceiptHandle())
{
parameters.Add("ReceiptHandle", request.ReceiptHandle);
}
if (request.IsSetVisibilityTimeout())
{
parameters.Add("VisibilityTimeout", request.VisibilityTimeout + "");
}
List <Attribute> changeMessageVisibilityRequestAttributeList = request.Attribute;
int changeMessageVisibilityRequestAttributeListIndex = 1;
foreach (Attribute changeMessageVisibilityRequestAttribute in changeMessageVisibilityRequestAttributeList)
{
if (changeMessageVisibilityRequestAttribute.IsSetName())
{
parameters.Add("Attribute" + "." + changeMessageVisibilityRequestAttributeListIndex + "." + "Name", changeMessageVisibilityRequestAttribute.Name);
}
if (changeMessageVisibilityRequestAttribute.IsSetValue())
{
parameters.Add("Attribute" + "." + changeMessageVisibilityRequestAttributeListIndex + "." + "Value", changeMessageVisibilityRequestAttribute.Value);
}
changeMessageVisibilityRequestAttributeListIndex++;
}
return(parameters);
}
/**
* Convert ChangeMessageVisibilityRequest to name value pairs
*/
private static IDictionary <string, string> ConvertChangeMessageVisibility(ChangeMessageVisibilityRequest request)
{
IDictionary <string, string> parameters = new Dictionary <string, string>();
parameters["Action"] = "ChangeMessageVisibility";
if (request.IsSetQueueUrl())
{
parameters["QueueUrl"] = request.QueueUrl;
}
if (request.IsSetReceiptHandle())
{
parameters["ReceiptHandle"] = request.ReceiptHandle;
}
if (request.IsSetVisibilityTimeout())
{
parameters["VisibilityTimeout"] = request.VisibilityTimeout.ToString();
}
List <Attribute> changeMessageVisibilityRequestAttributeList = request.Attribute;
int changeMessageVisibilityRequestAttributeListIndex = 1;
foreach (Attribute changeMessageVisibilityRequestAttribute in changeMessageVisibilityRequestAttributeList)
{
if (changeMessageVisibilityRequestAttribute.IsSetName())
{
parameters[String.Concat("Attribute", ".", changeMessageVisibilityRequestAttributeListIndex, ".", "Name")] = changeMessageVisibilityRequestAttribute.Name;
}
if (changeMessageVisibilityRequestAttribute.IsSetValue())
{
parameters[String.Concat("Attribute", ".", changeMessageVisibilityRequestAttributeListIndex, ".", "Value")] = changeMessageVisibilityRequestAttribute.Value;
}
changeMessageVisibilityRequestAttributeListIndex++;
}
return(parameters);
}
public void ChangeMessageVisibility()
{
AmazonSQSClient client = new AmazonSQSClient();
string queueUrl = "SQS_QUEUE_URL";
var receiveMessageRequest = new ReceiveMessageRequest
{
AttributeNames = { "SentTimestamp" },
MaxNumberOfMessages = 1,
MessageAttributeNames = { "All" },
QueueUrl = queueUrl
};
var response = client.ReceiveMessage(receiveMessageRequest);
var changeMessageVisibilityRequest = new ChangeMessageVisibilityRequest
{
QueueUrl = queueUrl,
ReceiptHandle = response.Messages[0].ReceiptHandle,
VisibilityTimeout = 36000, // 10 hour timeout
};
client.ChangeMessageVisibility(changeMessageVisibilityRequest);
}
private async Task UpdateMessageVisibilityTimeout(SQSMessage message, string receiptHandle, Message typedMessage, Exception lastException)
{
if (TryGetApproxReceiveCount(message.Attributes, out int approxReceiveCount))
{
var visibilityTimeoutSeconds = (int)_messageBackoffStrategy.GetBackoffDuration(typedMessage, approxReceiveCount, lastException).TotalSeconds;
try
{
var visibilityRequest = new ChangeMessageVisibilityRequest
{
QueueUrl = _queue.Url,
ReceiptHandle = receiptHandle,
VisibilityTimeout = visibilityTimeoutSeconds
};
await _queue.Client.ChangeMessageVisibilityAsync(visibilityRequest);
}
catch (Exception ex)
{
_log.LogError(0, ex, $"Failed to update message visibility timeout by {visibilityTimeoutSeconds} seconds");
_onError(ex, message);
}
}
}
public Task <ChangeMessageVisibilityResponse> ChangeMessageVisibilityAsync(
ChangeMessageVisibilityRequest request,
CancellationToken cancellationToken = new CancellationToken())
{
return(Task.FromResult(new ChangeMessageVisibilityResponse()));
}
public Task <ChangeMessageVisibilityResponse> ChangeMessageVisibilityAsync(ChangeMessageVisibilityRequest request, CancellationToken token = default(CancellationToken))
{
return(ChangeMessageVisibility(request).AsTaskResult());
}
public static ChangeMessageVisibilityResponse ChangeMessageVisibility(this IAmazonSQS client, ChangeMessageVisibilityRequest request)
{
return(client.ChangeMessageVisibilityAsync(request).GetResult());
}
public async Task <ChangeMessageVisibilityResponse> ChangeMessageVisibilityAsync(ChangeMessageVisibilityRequest request)
{
request.QueueName = this.QueueName;
var marshaller = new ChangeMessageVisibilityRequestMarshaller();
var unmarshaller = ChangeMessageVisibilityResponseUnmarshaller.Instance;
return(await _serviceClient.InvokeAsync <ChangeMessageVisibilityRequest, ChangeMessageVisibilityResponse>(request, marshaller, unmarshaller).ConfigureAwait(false));
}
public void Start()
{
#region Queue Releated Test Cases
/* 1.1. Async create queue */
var createQueueRequest = new CreateQueueRequest
{
QueueName = _queueName,
Attributes =
{
DelaySeconds = 10,
VisibilityTimeout = 30,
MaximumMessageSize = 40960,
MessageRetentionPeriod = 345600,
PollingWaitSeconds = 15
}
};
try
{
_client.BeginCreateQueue(createQueueRequest, CreateQueueCallback, null);
}
catch (Exception ex)
{
Console.WriteLine("Create queue failed, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 2.1 Async get queue attributes */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
var getQueueAttributesRequest = new GetQueueAttributesRequest();
nativeQueue.BeginGetAttributes(getQueueAttributesRequest, GetQueueAttributesCallback, nativeQueue);
}
catch (Exception ex)
{
Console.WriteLine("Get queue attributes failed, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 3. Async list queue */
try
{
do
{
var listQueueRequest = new ListQueueRequest
{
QueueNamePrefix = _queueNamePrefix,
Marker = _nextMarker,
MaxReturns = 5
};
_client.BeginListQueue(listQueueRequest, ListQueueCallback, null);
_autoSetEvent.WaitOne();
} while (_nextMarker != string.Empty);
}
catch (Exception ex)
{
Console.WriteLine("List queue failed, exception info: " + ex.Message);
}
/* 4. Async set queue attributes */
var setQueueAttributesRequest = new SetQueueAttributesRequest
{
Attributes =
{
DelaySeconds = 0,
VisibilityTimeout = 10,
MaximumMessageSize = 10240,
PollingWaitSeconds = 10,
MessageRetentionPeriod = 50000
}
};
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
nativeQueue.BeginSetAttributes(setQueueAttributesRequest, SetQueueAttributesCallback, nativeQueue);
}
catch (Exception ex)
{
Console.WriteLine("Set queue attributes failed, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 2.2 Async get queue attributes again */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
var getQueueAttributesRequest = new GetQueueAttributesRequest();
nativeQueue.BeginGetAttributes(getQueueAttributesRequest, GetQueueAttributesCallback, nativeQueue);
}
catch (Exception ex)
{
Console.WriteLine("Get queue attributes failed again, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 5.1. Async delete queue */
var deleteQueueRequest = new DeleteQueueRequest(_queueName);
deleteQueueRequest.AddHeader("Accept", "IE6");
try
{
_client.BeginDeleteQueue(deleteQueueRequest, DeleteQueueCallback, _queueName);
}
catch (Exception ex)
{
Console.WriteLine("Delete queue failed, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 1.2. Async create queue again */
try
{
_client.BeginCreateQueue(createQueueRequest, CreateQueueCallback, null);
}
catch (Exception ex)
{
Console.WriteLine("Create queue failed again, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
#endregion
#region Messge Releated Test Cases
/* 5. Async receive message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
for (int i = 0; i < _receiveTimes; i++)
{
var receiveMessageRequest = new ReceiveMessageRequest();
nativeQueue.BeginReceiveMessage(receiveMessageRequest, ReceiveMessageCallback, nativeQueue);
_autoSetEvent.WaitOne();
Thread.Sleep(_receiveInterval);
}
}
catch (Exception ex)
{
Console.WriteLine("Receive message failed, exception info: " + ex.Message);
}
/* 6. Async send message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
var sendMessageRequest = new SendMessageRequest("阿里云计算");
nativeQueue.BeginSendMessage(sendMessageRequest, SendMessageCallback, nativeQueue);
}
catch (Exception ex)
{
Console.WriteLine("Send message failed, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 7. Async receive message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
for (int i = 0; i < _receiveTimes; i++)
{
var receiveMessageRequest = new ReceiveMessageRequest();
nativeQueue.BeginReceiveMessage(receiveMessageRequest, ReceiveMessageCallback, nativeQueue);
_autoSetEvent.WaitOne();
Thread.Sleep(_receiveInterval);
}
}
catch (Exception ex)
{
Console.WriteLine("Receive message failed, exception info: " + ex.Message);
}
/* 8. Async change message visibility */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
var changeMessageVisibilityRequest = new ChangeMessageVisibilityRequest
{
ReceiptHandle = _receiptHandle,
VisibilityTimeout = 5
};
nativeQueue.BeginChangeMessageVisibility(changeMessageVisibilityRequest, ChangeMessageVisibilityCallback, nativeQueue);
}
catch (Exception ex)
{
Console.WriteLine("Change message visibility failed, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 9. Async peek message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
var peekMessageRequest = new PeekMessageRequest();
for (uint i = 0; i < _receiveTimes; i++)
{
nativeQueue.BeginPeekMessage(peekMessageRequest, PeekMessageCallback, nativeQueue);
_autoSetEvent.WaitOne();
Thread.Sleep(_receiveInterval);
}
}
catch (Exception ex)
{
Console.WriteLine("Peek message failed, exception info: " + ex.Message);
}
/* 10. Async delete message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
var receiveMessageResponse = nativeQueue.ReceiveMessage();
_receiptHandle = receiveMessageResponse.Message.ReceiptHandle;
var deleteMessageRequest = new DeleteMessageRequest(_receiptHandle);
nativeQueue.BeginDeleteMessage(deleteMessageRequest, DeleteMessageCallback, nativeQueue);
}
catch (Exception ex)
{
Console.WriteLine("Async BeginDeleteMessage failed, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
/* 11. Async batch send message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
List <SendMessageRequest> requests = new List <SendMessageRequest>();
requests.Add(new SendMessageRequest("阿里云计算 Priority1", 0, 1));
for (int i = 0; i < _batchSize; i++)
{
requests.Add(new SendMessageRequest("阿里云计算" + i.ToString()));
}
BatchSendMessageRequest batchSendRequest = new BatchSendMessageRequest()
{
Requests = requests
};
nativeQueue.BeginBatchSendMessage(batchSendRequest, BatchSendMessageCallback, nativeQueue);
_autoSetEvent.WaitOne();
}
catch (Exception ex)
{
Console.WriteLine("BeginBatchSend message failed, exception info: " + ex.Message);
}
Thread.Sleep(12000);
/* 12. Async batch peek message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
var batchPeekMessageRequest = new BatchPeekMessageRequest(_batchSize + 2);
Console.WriteLine(batchPeekMessageRequest.BatchSize.ToString());
nativeQueue.BeginBatchPeekMessage(batchPeekMessageRequest, BatchPeekMessageCallback, nativeQueue);
_autoSetEvent.WaitOne();
}
catch (Exception ex)
{
Console.WriteLine("BeginBatchPeek message failed, exception info: " + ex.Message);
}
/* 13. Async batch receive message */
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
BatchReceiveMessageRequest batchReceiveMessageRequest = new BatchReceiveMessageRequest(_batchSize + 1, 3);
var batchReceiveMessageResponse = nativeQueue.BeginBatchReceiveMessage(batchReceiveMessageRequest, BatchReceiveMessageCallback, nativeQueue);
_autoSetEvent.WaitOne();
}
catch (Exception ex)
{
Console.WriteLine("Batch receive message failed, exception info: " + ex.Message);
}
/* 14. Async batch delete message */
if (_batchReceiveMessageResponse != null && _batchReceiveMessageResponse.Messages.Count > 0)
{
try
{
var nativeQueue = _client.GetNativeQueue(_queueName);
List <string> receiptHandles = new List <string>();
foreach (var message in _batchReceiveMessageResponse.Messages)
{
receiptHandles.Add(message.ReceiptHandle);
}
var batchDeleteMessageRequest = new BatchDeleteMessageRequest()
{
ReceiptHandles = receiptHandles
};
var batchDeleteMessageResponse = nativeQueue.BeginBatchDeleteMessage(batchDeleteMessageRequest, BatchDeleteMessageCallback, nativeQueue);
_autoSetEvent.WaitOne();
}
catch (Exception ex)
{
Console.WriteLine("Batch delete message failed, exception info: " + ex.Message);
}
}
#endregion
#region Clean Generated Queue
/* 5.2. Async delete queue again */
try
{
_client.BeginDeleteQueue(deleteQueueRequest, DeleteQueueCallback, _queueName);
}
catch (Exception ex)
{
Console.WriteLine("Delete queue failed again, exception info: " + ex.Message);
}
_autoSetEvent.WaitOne();
#endregion
Console.ReadKey();
}
/// <summary>
/// Change Message Visibility
/// </summary>
/// <param name="request">Change Message Visibility request</param>
/// <returns>Change Message Visibility Response from the service</returns>
/// <remarks>
/// The ChangeMessageVisibility action extends the read lock timeout of the specified message from the specified queue to the specified value.
///
/// </remarks>
public ChangeMessageVisibilityResponse ChangeMessageVisibility(ChangeMessageVisibilityRequest request)
{
return(Invoke <ChangeMessageVisibilityResponse>(ConvertChangeMessageVisibility(request)));
}
public Task <ChangeMessageVisibilityResponse> ChangeMessageVisibilityAsync(ChangeMessageVisibilityRequest request, CancellationToken cancellationToken = default(CancellationToken))
{
return(amazonSqsToBeExtended.ChangeMessageVisibilityAsync(request, cancellationToken));
}
public ChangeMessageVisibilityResponse ChangeMessageVisibility(ChangeMessageVisibilityRequest request)
{
return(amazonSqsToBeExtended.ChangeMessageVisibility(request));
}
public async Task StartListeningAsync()
{
Logger.LogDebug("Starting SQS listener...");
GetQueueDetailsFromAws();
var request = new ReceiveMessageRequest
{
AttributeNames = new List <string> {
"All"
},
MaxNumberOfMessages = 5,
QueueUrl = _queueDetails.QueueUrl,
VisibilityTimeout = (int)TimeSpan.FromMinutes(2).TotalSeconds,
WaitTimeSeconds = (int)TimeSpan.FromSeconds(20).TotalSeconds
};
Started = true;
while (!Shutdown)
{
Logger.LogDebug("Checking for new SQS messages...");
var response = _sqsClient.ReceiveMessageAsync(request).Result;
if (response.Messages.Count > 0)
{
Logger.LogDebug($"Received {response.Messages.Count} messages from SQS");
foreach (var message in response.Messages)
{
Logger.LogDebug($"Processing message {message.MessageId}");
Logger.LogDebug($"Message contents: {message.Body.Replace("{", "{{").Replace("}", "}}")}");
T constructedMessage;
try
{
Logger.LogDebug($"Deserialising message body...");
constructedMessage = JsonConvert.DeserializeObject <T>(message.Body);
Logger.LogDebug($"Deserialised message {message.MessageId} successfully.");
Logger.LogDebug("Sanity check re-serialised:");
Logger.LogDebug(JsonConvert.SerializeObject(constructedMessage).Replace("{", "{{").Replace("}", "}}"));
}
catch (JsonReaderException ex)
{
Logger.LogError(ex, "Unknown message type.");
// Bad message, delete it from the queue.
Logger.LogError($"Deleting bad message from queue with ID {message.MessageId}");
Logger.LogError("Message body:");
Logger.LogError(message.Body);
var deleteMessageRequest = new DeleteMessageRequest(_queueDetails.QueueUrl, message.ReceiptHandle);
_sqsClient.DeleteMessageAsync(deleteMessageRequest).Wait();
continue;
}
try
{
await HandleMessageAsync(constructedMessage);
// Message handled, delete it from the queue.
var deleteMessageRequest = new DeleteMessageRequest(_queueDetails.QueueUrl, message.ReceiptHandle);
await _sqsClient.DeleteMessageAsync(deleteMessageRequest);
}
catch (Exception ex)
{
Logger.LogDebug($"Processing of message failed. Release message {message.MessageId} back to queue.");
Logger.LogDebug($"Error was: {ex.Message}");
Logger.LogDebug(ex.StackTrace);
var changeMessageRequest = new ChangeMessageVisibilityRequest(_queueDetails.QueueUrl, message.ReceiptHandle, 0);
await _sqsClient.ChangeMessageVisibilityAsync(changeMessageRequest);
}
}
}
else
{
Logger.LogDebug("No sqs messages received.");
}
}
Logger.LogDebug("Shutting down");
Started = false;
await Task.CompletedTask;
}
