Acknowledgment Enumeración

Definición

Especifica el resultado de un intento de entrega del mensaje.Specifies the result of an attempted message delivery.

public enum class Acknowledgment
[System.Serializable]
public enum Acknowledgment
type Acknowledgment = 
Public Enum Acknowledgment
Herencia
Acknowledgment
Atributos

Campos

AccessDenied 32772

Confirmación de llegada negativa que indica que la aplicación de envío no tiene los derechos necesarios para enviar un mensaje a la cola de destino.A negative arrival acknowledgment indicating that the sending application does not have the necessary rights to send a message to the destination queue.

BadDestinationQueue 32768

Confirmación de llegada negativa que indica que la cola de destino no está disponible para la aplicación de envío.A negative arrival acknowledgment indicating that the destination queue is not available to the sending application.

BadEncryption 32775

Confirmación de llegada negativa que indica que el administrador de la cola de destino no pudo descifrar un mensaje privado.A negative arrival acknowledgment indicating that the destination queue manager could not decrypt a private message.

BadSignature 32774

Confirmación de llegada negativa que indica que la firma digital del mensaje original no es válida y Message Queuing no la pudo autenticar.A negative arrival acknowledgment indicating that the original message's digital signature is not valid and could not be authenticated by Message Queuing.

CouldNotEncrypt 32776

Confirmación de llegada negativa que indica que el administrador de la cola de origen no pudo cifrar un mensaje privado.A negative arrival acknowledgment indicating that the source queue manager could not encrypt a private message.

HopCountExceeded 32773

Confirmación de llegada negativa que indica que se ha superado el recuento de saltos (que especifica el número de servidores intermedios).A negative arrival acknowledgment indicating that the original message's hop count (which indicates the number of intermediate servers) was exceeded. El número máximo de saltos, 15, lo establece Message Queue Server y es inmutable.The maximum hop count, 15, is set by Message Queuing and is immutable.

None 0

El mensaje no es un mensaje de confirmación.The message is not an acknowledgment message.

NotTransactionalMessage 32778

Confirmación de llegada negativa que indica que se envió un mensaje no transaccional a una cola transaccional.A negative arrival acknowledgment indicating that a non-transactional message was sent to a transactional queue.

NotTransactionalQueue 32777

Confirmación de llegada negativa que indica que se envió un mensaje transaccional a una cola no transaccional.A negative arrival acknowledgment indicating that a transactional message was sent to a non-transactional queue.

Purged 32769

Confirmación de llegada negativa que indica que el mensaje fue purgado antes de llegar a su cola de destino.A negative arrival acknowledgment indicating that the message was purged before reaching its destination queue.

QueueDeleted 49152

Confirmación de lectura negativa que indica que la cola fue eliminada antes de que se leyera el mensaje.A negative read acknowledgment indicating that the queue was deleted before the message could be read.

QueueExceedMaximumSize 32771

Confirmación de llegada negativa que indica que el mensaje original no se entregó porque su cola de destino está llena.A negative arrival acknowledgment indicating that the original message was not delivered because its destination queue is full.

QueuePurged 49153

Confirmación de lectura negativa que indica que la cola fue purgada antes de que se leyera el mensaje.A negative read acknowledgment indicating that the queue was purged before the message could be read.

ReachQueue 2

Confirmación de llegada positiva que indica que el mensaje original llegó a su cola de destino.A positive arrival acknowledgment indicating that the original message reached its destination queue.

ReachQueueTimeout 32770

Confirmación de llegada negativa que indica que el tiempo de llegada a la cola o el tiempo de recepción expiró antes de que el mensaje original llegara a la cola de destino.A negative arrival acknowledgment indicating that the time-to-reach-queue or time-to-be-received timer expired before the original message could reach the destination queue.

Receive 16384

Confirmación de lectura positiva que indica que el mensaje original fue recibido por la aplicación receptora.A positive read acknowledgment indicating that the original message was received by the receiving application.

ReceiveTimeout 49154

Confirmación de lectura negativa que indica que el mensaje original no se recibió de la cola antes de que expirara el tiempo de recepción.A negative read acknowledgment indicating that the original message was not received from the queue before its time-to-be-received timer expired.

Ejemplos

En el ejemplo de código siguiente se envía y recibe un mensaje que contiene un pedido hacia y desde una cola.The following code example sends and receives a message containing an order to and from a queue. Solicita específicamente una confirmación positiva cuando el mensaje original alcanza o se recupera de la cola.It specifically requests a positive acknowledgment when the original message reaches or is retrieved from the queue.

#using <system.dll>
#using <system.messaging.dll>

using namespace System;
using namespace System::Messaging;
ref class MyNewQueue
{
public:
   static void CreateQueue( String^ queuePath )
   {
      try
      {
         if (  !MessageQueue::Exists( queuePath ) )
         {
            MessageQueue::Create( queuePath );
         }
         else
         {
            Console::WriteLine(  "{0} already exists.", queuePath );
         }
      }
      catch ( MessageQueueException^ e ) 
      {
         Console::WriteLine( e->Message );
      }

   }

   void SendMessage()
   {
      // Connect to a queue on the local computer.
      MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" );

      // Create a new message.
      Message^ myMessage = gcnew Message( "Original Message" );
      myMessage->AdministrationQueue = gcnew MessageQueue( ".\\myAdministrationQueue" );
      myMessage->AcknowledgeType = (AcknowledgeTypes)(AcknowledgeTypes::PositiveReceive | AcknowledgeTypes::PositiveArrival);

      // Send the Order to the queue.
      myQueue->Send( myMessage );
      return;
   }

   String^ ReceiveMessage()
   {
      // Connect to the a queue on the local computer.
      MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" );
      myQueue->MessageReadPropertyFilter->CorrelationId = true;
      array<Type^>^p = gcnew array<Type^>(1);
      p[ 0 ] = String::typeid;
      myQueue->Formatter = gcnew XmlMessageFormatter( p );
      String^ returnString = nullptr;
      try
      {
         // Receive and format the message. 
         Message^ myMessage = myQueue->Receive();

         // Display message information.
         Console::WriteLine( "____________________________________________" );
         Console::WriteLine( "Original message information--" );
         Console::WriteLine( "Body: {0}", myMessage->Body );
         Console::WriteLine( "Id: {0}", myMessage->Id );
         Console::WriteLine( "____________________________________________" );
         returnString = myMessage->Id;
      }
      catch ( MessageQueueException^ ) 
      {
         // Handle Message Queuing exceptions.
      }
      // Handle invalid serialization format.
      catch ( InvalidOperationException^ e ) 
      {
         Console::WriteLine( e->Message );
      }

      // Catch other exceptions as necessary.
      return returnString;
   }

   void ReceiveAcknowledgment( String^ messageId, String^ queuePath )
   {
      bool found = false;
      MessageQueue^ queue = gcnew MessageQueue( queuePath );
      queue->MessageReadPropertyFilter->CorrelationId = true;
      queue->MessageReadPropertyFilter->Acknowledgment = true;
      try
      {
         while ( queue->PeekByCorrelationId( messageId ) != nullptr )
         {
            Message^ myAcknowledgmentMessage = queue->ReceiveByCorrelationId( messageId );

            // Output acknowledgment message information. The correlation Id is identical
            // to the id of the original message.
            Console::WriteLine( "Acknowledgment Message Information--" );
            Console::WriteLine( "Correlation Id: {0}", myAcknowledgmentMessage->CorrelationId );
            Console::WriteLine( "Id: {0}", myAcknowledgmentMessage->Id );
            Console::WriteLine( "Acknowledgment Type: {0}", myAcknowledgmentMessage->Acknowledgment );
            Console::WriteLine( "____________________________________________" );
            found = true;
         }
      }
      catch ( InvalidOperationException^ e ) 
      {
         // This exception would be thrown if there is no (further) acknowledgment message
         // with the specified correlation Id. Only output a message if there are no messages;
         // not if the loop has found at least one.
         if ( found == false )
         {
            Console::WriteLine( e->Message );
         }

         // Handle other causes of invalid operation exception.
      }

   }

};

int main()
{
   // Create a new instance of the class.
   MyNewQueue^ myNewQueue = gcnew MyNewQueue;

   // Create new queues.
   MyNewQueue::CreateQueue( ".\\myQueue" );
   MyNewQueue::CreateQueue( ".\\myAdministrationQueue" );

   // Send messages to a queue.
   myNewQueue->SendMessage();

   // Receive messages from a queue.
   String^ messageId = myNewQueue->ReceiveMessage();

   // Receive acknowledgment message.
   if ( messageId != nullptr )
   {
      myNewQueue->ReceiveAcknowledgment( messageId, ".\\myAdministrationQueue" );
   }

   return 0;
}
using System;
using System.Messaging;

namespace MyProject
{

    /// <summary>
    /// Provides a container class for the example.
    /// </summary>
    public class MyNewQueue
    {

        //**************************************************
        // Provides an entry point into the application.
        //		 
        // This example sends and receives a message from
        // a queue.
        //**************************************************

        public static void Main()
        {
            // Create a new instance of the class.
            MyNewQueue myNewQueue = new MyNewQueue();

            // Create new queues.
            CreateQueue(".\\myQueue");
            CreateQueue(".\\myAdministrationQueue");

            // Send messages to a queue.
            myNewQueue.SendMessage();

            // Receive messages from a queue.
            string messageId = myNewQueue.ReceiveMessage(); 

            // Receive acknowledgment message.
            if(messageId != null)
            {
                myNewQueue.ReceiveAcknowledgment(messageId, ".\\myAdministrationQueue");
            }

            return;
        }

        //**************************************************
        // Creates a new queue.
        //**************************************************

        public static void CreateQueue(string queuePath)
        {
            try	
            {
                if(!MessageQueue.Exists(queuePath))
                {
                    MessageQueue.Create(queuePath);
                }
                else
                {
                    Console.WriteLine(queuePath + " already exists.");
                }
            }
            catch (MessageQueueException e)
            {
                Console.WriteLine(e.Message);
            }
            
        }


        //**************************************************
        // Sends a string message to a queue.
        //**************************************************
        
        public void SendMessage()
        {

            // Connect to a queue on the local computer.
            MessageQueue myQueue = new MessageQueue(".\\myQueue");

            // Create a new message.
            Message myMessage = new Message("Original Message"); 

            myMessage.AdministrationQueue = new MessageQueue(".\\myAdministrationQueue");
            myMessage.AcknowledgeType = AcknowledgeTypes.PositiveReceive | AcknowledgeTypes.PositiveArrival;

            // Send the Order to the queue.
            myQueue.Send(myMessage);

            return;
        }


        //**************************************************
        // Receives a message containing an Order.
        //**************************************************
        
        public  string ReceiveMessage()
        {
            // Connect to the a queue on the local computer.
            MessageQueue myQueue = new MessageQueue(".\\myQueue");

            myQueue.MessageReadPropertyFilter.CorrelationId = true;


            // Set the formatter to indicate body contains an Order.
            myQueue.Formatter = new XmlMessageFormatter(new Type[]
                {typeof(string)});

            string returnString = null;
            
            try
            {
                // Receive and format the message. 
                Message myMessage =	myQueue.Receive(); 


                // Display message information.
                Console.WriteLine("____________________________________________");
                Console.WriteLine("Original message information--");
                Console.WriteLine("Body: " +myMessage.Body.ToString());
                Console.WriteLine("Id: " + myMessage.Id.ToString());
                Console.WriteLine("____________________________________________");

                returnString =  myMessage.Id;
                
            }
            
            catch (MessageQueueException)
            {
                // Handle Message Queuing exceptions.
            }

            // Handle invalid serialization format.
            catch (InvalidOperationException e)
            {
                Console.WriteLine(e.Message);
            }
            
            // Catch other exceptions as necessary.

            return returnString;
        }

        //**************************************************
        // Receives a message containing an Order.
        //**************************************************
        
        public void ReceiveAcknowledgment(string messageId, string queuePath)
        {
            bool found = false;
            MessageQueue queue = new MessageQueue(queuePath);
            queue.MessageReadPropertyFilter.CorrelationId = true;
            queue.MessageReadPropertyFilter.Acknowledgment = true;

            try
            {
                while(queue.PeekByCorrelationId(messageId) != null)
                {
                    Message myAcknowledgmentMessage = queue.ReceiveByCorrelationId(messageId);
            
                    // Output acknowledgment message information. The correlation Id is identical
                    // to the id of the original message.
                    Console.WriteLine("Acknowledgment Message Information--");
                    Console.WriteLine("Correlation Id: " + myAcknowledgmentMessage.CorrelationId.ToString());
                    Console.WriteLine("Id: " + myAcknowledgmentMessage.Id.ToString());
                    Console.WriteLine("Acknowledgment Type: " + myAcknowledgmentMessage.Acknowledgment.ToString());
                    Console.WriteLine("____________________________________________");

                    found = true;
                }
            }
            catch (InvalidOperationException e)
            { 
                // This exception would be thrown if there is no (further) acknowledgment message
                // with the specified correlation Id. Only output a message if there are no messages;
                // not if the loop has found at least one.
                if(found == false)
                {	
                    Console.WriteLine(e.Message);
                }

                // Handle other causes of invalid operation exception.
            }

        }
    }
}
Imports System.Messaging


' Provides a container class for the example.

Public Class MyNewQueue
   
   

   ' Provides an entry point into the application.       
   ' This example sends and receives a message from
   ' a queue.
      
   Public Shared Sub Main()
         ' Create a new instance of the class.
         Dim myNewQueue As New MyNewQueue()
         
         ' Create new queues.
         CreateQueue(".\myQueue")
         CreateQueue(".\myAdministrationQueue")
         
         ' Send messages to a queue.
         myNewQueue.SendMessage()
         
         ' Receive messages from a queue.
         Dim messageId As String = myNewQueue.ReceiveMessage()
         
         ' Receive acknowledgment message.
         If Not (messageId Is Nothing) Then
            myNewQueue.ReceiveAcknowledgment(messageId, ".\myAdministrationQueue")
         End If
         
         Return
   End Sub
      
      
      ' Creates a new queue.

   Public Shared Sub CreateQueue(queuePath As String)
         Try
            If Not MessageQueue.Exists(queuePath) Then
               MessageQueue.Create(queuePath)
            Else
               Console.WriteLine((queuePath + " already exists."))
            End If
         Catch e As MessageQueueException
            Console.WriteLine(e.Message)
         End Try
   End Sub
       
      
      
 
      ' Sends a string message to a queue.
 
   Public Sub SendMessage()
         
         ' Connect to a queue on the local computer.
         Dim myQueue As New MessageQueue(".\myQueue")
         
         ' Create a new message.
         Dim myMessage As New Message("Original Message")
         
         myMessage.AdministrationQueue = New MessageQueue(".\myAdministrationQueue")
         myMessage.AcknowledgeType = AcknowledgeTypes.PositiveReceive Or AcknowledgeTypes.PositiveArrival
         
         ' Send the Order to the queue.
         myQueue.Send(myMessage)
         
         Return
   End Sub
      
      
      
 
      ' Receives a message containing an Order.
 
   Public Function ReceiveMessage() As String
         ' Connect to the a queue on the local computer.
         Dim myQueue As New MessageQueue(".\myQueue")
         
         myQueue.MessageReadPropertyFilter.CorrelationId = True
         
         
         ' Set the formatter to indicate body contains an Order.
         myQueue.Formatter = New XmlMessageFormatter(New Type() {GetType(String)})
         
         Dim returnString As String = Nothing
         
         Try
            ' Receive and format the message. 
            Dim myMessage As Message = myQueue.Receive()
            
            
            ' Display message information.
            Console.WriteLine("____________________________________________")
            Console.WriteLine("Original message information--")
            Console.WriteLine(("Body: " + myMessage.Body.ToString()))
            Console.WriteLine(("Id: " + myMessage.Id.ToString()))
            Console.WriteLine("____________________________________________")
            
            returnString = myMessage.Id
         
         
                  
         ' Handle invalid serialization format.
         Catch e As InvalidOperationException
            Console.WriteLine(e.Message)
         End Try
         
         ' Catch other exceptions as necessary.
         Return returnString
   End Function 'ReceiveMessage
      
      
 
      ' Receives a message containing an Order.
 
   Public Sub ReceiveAcknowledgment(messageId As String, queuePath As String)
         Dim found As Boolean = False
         Dim queue As New MessageQueue(queuePath)
         queue.MessageReadPropertyFilter.CorrelationId = True
         queue.MessageReadPropertyFilter.Acknowledgment = True
         
         Try
            While Not (queue.PeekByCorrelationId(messageId) Is Nothing)
               Dim myAcknowledgmentMessage As Message = queue.ReceiveByCorrelationId(messageId)
               
               ' Output acknowledgment message information. The correlation Id is identical
               ' to the id of the original message.
               Console.WriteLine("Acknowledgment Message Information--")
               Console.WriteLine(("Correlation Id: " + myAcknowledgmentMessage.CorrelationId.ToString()))
               Console.WriteLine(("Id: " + myAcknowledgmentMessage.Id.ToString()))
               Console.WriteLine(("Acknowledgment Type: " + myAcknowledgmentMessage.Acknowledgment.ToString()))
               Console.WriteLine("____________________________________________")
               
               found = True
            End While
         Catch e As InvalidOperationException
            ' This exception would be thrown if there is no (further) acknowledgment message
            ' with the specified correlation Id. Only output a message if there are no messages;
            ' not if the loop has found at least one.
            If found = False Then
               Console.WriteLine(e.Message)
            End If
         End Try 
   End Sub
 End Class

Comentarios

La Acknowledgment clase define los tipos de mensajes de confirmación que Message Queuing envía en la cola de administración y las condiciones que hacen que se envíe un mensaje de confirmación.The Acknowledgment class defines the types of acknowledgment messages that Message Queuing posts in the administration queue and the conditions that cause an acknowledgment message to be sent. Los tipos de confirmación se pueden dividir en cuatro grupos: confirmaciones de llegada positivas, confirmaciones de lectura positivas, confirmaciones de llegada negativas y confirmaciones de lectura negativas.Acknowledgment types can be divided broadly into four groups: positive arrival acknowledgments, positive read acknowledgments, negative arrival acknowledgments, and negative read acknowledgments.

La cola de administración asociada al mensaje se especifica en Message.AdministrationQueue la propiedad.The administration queue associated with message is specified in the Message.AdministrationQueue property.

Message Queue Server Message.Acknowledgment establece la propiedad en uno Acknowledgment de los valores de enumeración cuando crea un mensaje de confirmación.Message Queuing sets the Message.Acknowledgment property to one of the Acknowledgment enumeration values when it creates an acknowledgment message. Normalmente Message.Acknowledgment , el valor de la propiedad solo es significativo cuando la instancia hace referencia a un mensaje de confirmación enviado por el sistema.The Message.Acknowledgment property value is typically meaningful only when the instance refers to a system-sent acknowledgment message. Al leer Message.Acknowledgment la propiedad para un mensaje que no sea un mensaje de confirmación, se produce una excepción.Reading the Message.Acknowledgment property for a message other than an acknowledgment message throws an exception.

Message Queue Server no envía un mensaje de confirmación a menos que la aplicación emisora solicite que lo haga.Message Queuing does not send an acknowledgment message unless the sending application requests that it do so. La aplicación realiza esta solicitud estableciendo el valor adecuado para la Message.AcknowledgeType propiedad.Your application makes this request by setting the appropriate value for the Message.AcknowledgeType property. Message Queue Server envía todos los mensajes de confirmación a la cola AdministrationQueue de administración especificada en Messagela propiedad de la original.Message Queuing sends all acknowledgment messages to the administration queue specified in the AdministrationQueue property of the original Message.

Se aplica a