private void Action(object obj)
{
var cancellationToken = (CancellationToken)obj;
while (!cancellationToken.IsCancellationRequested)
{
var result = new ReceiveResult();
try
{
using (var connection = new OracleConnection(this.ConnectionString))
{
using (var queue = new OracleAQQueue(this.workQueue, connection, OracleAQMessageType.Xml))
{
connection.Open();
this.SetupClientInfo(connection);
queue.Listen(null);
result = this.TryReceive(queue);
}
}
}
finally
{
if (result.Message != null)
{
this.endProcessMessage(result.Message, result.Exception);
}
}
this.circuitBreaker.Success();
}
}
private static void DequeueTest_UsingListen(int identifier)
{
try
{
var aqueueAgent = new [] { new OracleAQAgent(null, "CS_SCHEDULER.SCHEDULE_QUEUE") };
var connection = new OracleConnection(ConnectionString);
connection.Open();
var queue = new OracleAQQueue("SCHEDULE_QUEUE", connection)
{
MessageType = OracleAQMessageType.Raw,
EnqueueOptions =
{
Visibility = OracleAQVisibilityMode.OnCommit,
DeliveryMode = OracleAQMessageDeliveryMode.Persistent
}
};
var dequeueOptions = new OracleAQDequeueOptions
{
Visibility = OracleAQVisibilityMode.OnCommit,
NavigationMode = OracleAQNavigationMode.NextMessage,
DequeueMode = OracleAQDequeueMode.Remove,
DeliveryMode = OracleAQMessageDeliveryMode.Persistent,
Wait = -1
};
while (true)
{
var agent = OracleAQQueue.Listen(connection, aqueueAgent, 1);
if (agent != null)
{
Dequeue(connection, queue, dequeueOptions, identifier);
}
}
}
catch (Exception e)
{
Log.Error(e.Message, e);
Log.ErrorFormat("Identifier : {0}", identifier);
Environment.Exit(0);
}
}
private void button2_Click(object sender, EventArgs e)
{
string _connstring = "Data Source=localhost/NEWDB;User Id=EDZEHOO;Password=PASS123;";
try
{
OracleConnection _connObj = new OracleConnection(_connstring);
// Create a new queue object
OracleAQQueue _queueObj = new OracleAQQueue("EDZEHOO.MY_JOBS_QUEUE",
_connObj);
_connObj.Open();
// The Listen function is a blocking call - it will wait
// indefinitely until a message is received.
_queueObj.Listen(null);
// Once we're here this means a message has been detected in the queue.
// We can now proceed to dequeue that message
OracleTransaction _txn = _connObj.BeginTransaction();
// Dequeue the message.
_queueObj.DequeueOptions.Visibility = OracleAQVisibilityMode.OnCommit;
_queueObj.DequeueOptions.Wait = 10;
OracleAQMessage _deqMsg = _queueObj.Dequeue();
MessageBox.Show("Dequeued Payload Data: " +
ConvertFromByteArray((byte[])_deqMsg.Payload) + "\n"
+ "Dequeued Payload Hex: " +
ConvertToHexString((byte[])_deqMsg.Payload) + "\n"
+ "Message ID of Dequeued Payload : " +
ConvertToHexString(_deqMsg.MessageId) + "\n" +
"Correlation : " + _deqMsg.Correlation);
_txn.Commit();
_queueObj.Dispose();
_connObj.Close();
_connObj.Dispose();
_connObj = null;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void Action(object obj)
{
var cancellationToken = (CancellationToken)obj;
while (!cancellationToken.IsCancellationRequested)
{
var result = new ReceiveResult();
try
{
using (var connection = new OracleConnection(this.ConnectionString))
{
using (var queue = new OracleAQQueue(this.workQueue, connection, OracleAQMessageType.Xml))
{
connection.Open();
this.SetupClientInfo(connection);
queue.Listen(null);
result = this.TryReceive(queue);
}
}
}
finally
{
if (result.Message != null)
{
this.endProcessMessage(result.Message, result.Exception);
}
}
this.circuitBreaker.Success();
}
}
