private static void Transactional_Queue_Resend_to_New_Queue()
{
var queue = new KubeMQ.SDK.csharp.Queue.Queue("QueueName", "ClientID", "localhost:50000", null, tempAuthToken);
var transaction = queue.CreateTransaction();
// get message from the queue with visibility of 5 seconds and wait timeout of 10 seconds
KubeMQ.SDK.csharp.Queue.Stream.TransactionMessagesResponse resRec;
try {
resRec = transaction.Receive(5, 10);
if (resRec.IsError)
{
Console.WriteLine($"Message dequeue error, error:{resRec.Error}");
return;
}
Console.WriteLine($"MessageID: {resRec.Message.MessageID}, Body:{KubeMQ.SDK.csharp.Tools.Converter.FromByteArray(resRec.Message.Body)}");
} catch (System.Exception ex) {
Console.WriteLine($"Message dequeue error, error:{ex.Message}");
return;
}
Console.WriteLine("Resend to new queue");
try {
var resResend = transaction.Resend("new-queue");
if (resResend.IsError)
{
Console.WriteLine($"Message Resend error, error:{resResend.Error}");
return;
}
} catch (System.Exception ex) {
Console.WriteLine($"Message Resend error, error:{ex.Message}");
return;
}
Console.WriteLine("Done");
}
static void Main()
{
Console.WriteLine("[DemoPoll]KubeMQ Queue pattern long polling");
Console.WriteLine($"[DemoPoll] ClientID:{ClientID}");
Console.WriteLine($"[DemoPoll] QueueName:{QueueName}");
Console.WriteLine($"[DemoPoll] KubeMQServerAddress:{KubeMQServerAddress}");
KubeMQ.SDK.csharp.Queue.Queue queue = CreateQueue();
if (queue == null)
{
Console.ReadLine();
}
while (true)
{
if (queue == null)
{
Thread.Sleep(1000);
queue = CreateQueue();
continue;
}
var transaction = queue.CreateTransaction();
if (transaction.InTransaction == true)
{
Console.WriteLine($"[DemoPoll][Tran]Transaction Context is still busy, loop again");
continue;
}
Console.WriteLine($"[DemoPoll][Tran]Transaction ready and listening");
try
{
TransactionMessagesResponse ms = transaction.Receive((int)new TimeSpan(1, 0, 0).TotalSeconds, (int)new TimeSpan(0, 0, 5).TotalSeconds);
if (ms.IsError)
{
Console.WriteLine(ms.QueueErrors == KubemqQueueErrors.ErrNoNewMessageQueue
? $"DemoPoll][Tran]no new message found"
: $"[DemoPoll][Tran]message dequeue error, error:{ms.Error}");
continue;
}
HandleMSG(ms, transaction);
}
catch (RpcException ex)
{
Console.WriteLine($"[DemoPoll][Tran]RPC error, error:{ex.Message}");
queue = CreateQueue();
}
transaction.Close();
Thread.Sleep(1);
}
}
private static void Transactional_Queue_Extend_Visibility()
{
var queue = new KubeMQ.SDK.csharp.Queue.Queue("QueueName", "ClientID", "localhost:50000", null, tempAuthToken);
var transaction = queue.CreateTransaction();
// get message from the queue with visibility of 5 seconds and wait timeout of 10 seconds
KubeMQ.SDK.csharp.Queue.Stream.TransactionMessagesResponse resRec;
try {
resRec = transaction.Receive(5, 10);
if (resRec.IsError)
{
Console.WriteLine($"Message dequeue error, error:{resRec.Error}");
return;
}
Console.WriteLine($"MessageID: {resRec.Message.MessageID}, Body:{KubeMQ.SDK.csharp.Tools.Converter.FromByteArray(resRec.Message.Body)}");
} catch (System.Exception ex) {
Console.WriteLine($"Message dequeue error, error:{ex.Message}");
return;
}
Console.WriteLine("Work for 1 seconds");
Thread.Sleep(1000);
Console.WriteLine("Need more time to process, extend visibility for more 3 seconds");
try {
var resExt = transaction.ExtendVisibility(3);
if (resExt.IsError)
{
Console.WriteLine($"Message ExtendVisibility error, error:{resExt.Error}");
return;
}
} catch (System.Exception ex) {
Console.WriteLine($"Message ExtendVisibility error, error:{ex.Message}");
}
Console.WriteLine("Approved. work for 2.5 seconds");
Thread.Sleep(2500);
Console.WriteLine("Work done... ack the message");
try {
var resAck = transaction.AckMessage(resRec.Message.Attributes.Sequence);
if (resAck.IsError)
{
Console.WriteLine($"Ack message error:{resAck.Error}");
}
Console.WriteLine("Ack done");
} catch (System.Exception ex) {
Console.WriteLine($"Ack message error:{ex.Message}");
}
}
private static void Transactional_Queue_Ack()
{
var queue = new KubeMQ.SDK.csharp.Queue.Queue("QueueName", "ClientID", "localhost:50000", null, tempAuthToken);
var transaction = queue.CreateTransaction();
// get message from the queue with visibility of 10 seconds and wait timeout of 10 seconds
KubeMQ.SDK.csharp.Queue.Stream.TransactionMessagesResponse resRec;
try {
resRec = transaction.Receive(10, 10);
if (resRec.IsError)
{
Console.WriteLine($"Message dequeue error, error:{resRec.Error}");
return;
}
Console.WriteLine($"MessageID: {resRec.Message.MessageID}, Body:{KubeMQ.SDK.csharp.Tools.Converter.FromByteArray(resRec.Message.Body)}");
} catch (System.Exception ex) {
Console.WriteLine($"Message dequeue error, error:{ex.Message}");
return;
}
Console.WriteLine("Doing some work.....");
Thread.Sleep(1000);
Console.WriteLine("Done, ack the message");
try {
var resAck = transaction.AckMessage(resRec.Message.Attributes.Sequence);
if (resAck.IsError)
{
Console.WriteLine($"Ack message error:{resAck.Error}");
return;
}
} catch (System.Exception ex) {
Console.WriteLine($"Ack message error:{ex.Message}");
return;
}
Console.WriteLine("Checking for next message");
try {
resRec = transaction.Receive(10, 1);
if (resRec.IsError)
{
Console.WriteLine($"Message dequeue error, error:{resRec.Error}");
return;
}
} catch (System.Exception ex) {
Console.WriteLine($"Message dequeue error, error:{ex.Message}");
return;
}
}
private static void Transactional_Queue_Resend_Modified_Message()
{
var queue = new KubeMQ.SDK.csharp.Queue.Queue("QueueName", "ClientID", "localhost:50000", null, tempAuthToken);
var transaction = queue.CreateTransaction();
// get message from the queue with visibility of 5 seconds and wait timeout of 10 seconds
KubeMQ.SDK.csharp.Queue.Stream.TransactionMessagesResponse resRec;
try {
resRec = transaction.Receive(3, 5);
if (resRec.IsError)
{
Console.WriteLine($"Message dequeue error, error:{resRec.Error}");
return;
}
} catch (System.Exception ex) {
Console.WriteLine($"Message dequeue error, error:{ex.Message}");
return;
}
Console.WriteLine($"MessageID: {resRec.Message.MessageID}, Body:{KubeMQ.SDK.csharp.Tools.Converter.FromByteArray(resRec.Message.Body)}");
var modMsg = resRec.Message;
modMsg.Queue = "receiverB";
modMsg.Metadata = "new metadata";
try {
var resMod = transaction.Modify(modMsg);
if (resMod.IsError)
{
Console.WriteLine($"Message Modify error, error:{resMod.Error}");
return;
}
} catch (System.Exception ex) {
Console.WriteLine($"Message Modify error, error:{ex.Message}");
return;
}
}