/// <summary>
/// This method is called after an A-ASSOCIATE-RJ has been received but before it
/// (possibly) will be handled by the (zero or more) MessageHandler objects that
/// are attached to this object.
///
/// Default, nothing is done in this method. Override if needed.
/// </summary>
/// <param name="associateRj">The received A-ASSOCIATE-RJ</param>
public virtual void BeforeHandlingAssociateReject(AssociateRj associateRj)
{
// Do nothing.
}
/// <summary>
/// Override this method to handle an A-ASSOCIATE-RJ.
/// </summary>
/// <param name="associateRj">The received A-ASSOCIATE-RJ.</param>
/// <returns>Return true when this methods has handled the received A-ASSOCIATE-RJ, otherwise false.</returns>
public virtual bool HandleAssociateReject(AssociateRj associateRj)
{
return false;
}
/// <summary>
/// This method is called after an A-ASSOCIATE-RJ has been received and has
/// (possibly) been handled by the (zero or more) MessageHandler objects that
/// are attached to this object.
///
/// Default, nothing is done in this method. Override if needed.
/// </summary>
/// <param name="associateRj">The received A-ASSOCIATE-RJ.</param>
public virtual void AfterHandlingAssociateReject(AssociateRj associateRj)
{
// Do nothing.
}
/// <summary>
/// Receives a messages (can be a Dicom or Dul message).
/// </summary>
/// <param name="messageToExpect">Message to expect that is written in the results.</param>
/// <returns>The received message.</returns>
/// <exception cref="DicomProtocolMessageReceiveException">
/// Receiving of a message fails.
/// </exception>
private DicomProtocolMessage ReceiveMessage(String messageToExpect)
{
DicomProtocolMessage receivedMessage = null;
DvtkData.Message dvtkDataMessage = null;
if (this.hasOpenConnection)
{
if (messageToExpect == "")
{
WriteInformation("Receiving message...");
}
else
{
WriteInformation("Receiving message (expecting " + messageToExpect + ")...");
}
}
else
{
WriteInformation(String.Format("Listening for incoming Dicom connection on port {0}...", Options.LocalPort));
}
Dvtk.Sessions.ReceiveReturnCode receiveReturnCode = DvtkScriptSession.Receive(out dvtkDataMessage);
if (receiveReturnCode != Dvtk.Sessions.ReceiveReturnCode.Success)
{
throw new DicomProtocolMessageReceiveException("Error while trying to receive a Message. Error code " + receiveReturnCode.ToString() + ".", receiveReturnCode);
}
else
{
if (dvtkDataMessage is DvtkData.Dimse.DicomMessage)
{
DicomMessage receivedDicomMessage = new DicomMessage(dvtkDataMessage as DvtkData.Dimse.DicomMessage);
// Apply the inbound DicomMessage filters if this is a DicomMessage.
foreach (InboundDicomMessageFilter inboundDicomMessageFilter in this.inboundDicomMessageFilters)
{
inboundDicomMessageFilter.Apply(receivedDicomMessage);
}
receivedMessage = receivedDicomMessage;
}
else if (dvtkDataMessage is DvtkData.Dul.A_ASSOCIATE_RQ)
{
receivedMessage = new AssociateRq(dvtkDataMessage as DvtkData.Dul.A_ASSOCIATE_RQ);
hasOpenConnection = true;
}
else if (dvtkDataMessage is DvtkData.Dul.A_ASSOCIATE_AC)
{
receivedMessage = new AssociateAc(dvtkDataMessage as DvtkData.Dul.A_ASSOCIATE_AC);
this.lastAssociateAc = receivedMessage as AssociateAc;
}
else if (dvtkDataMessage is DvtkData.Dul.A_ASSOCIATE_RJ)
{
receivedMessage = new AssociateRj(dvtkDataMessage as DvtkData.Dul.A_ASSOCIATE_RJ);
hasOpenConnection = false;
}
else if (dvtkDataMessage is DvtkData.Dul.A_RELEASE_RQ)
{
receivedMessage = new ReleaseRq(dvtkDataMessage as DvtkData.Dul.A_RELEASE_RQ);
}
else if (dvtkDataMessage is DvtkData.Dul.A_RELEASE_RP)
{
receivedMessage = new ReleaseRp(dvtkDataMessage as DvtkData.Dul.A_RELEASE_RP);
hasOpenConnection = false;
}
else if (dvtkDataMessage is DvtkData.Dul.A_ABORT)
{
receivedMessage = new Abort(dvtkDataMessage as DvtkData.Dul.A_ABORT);
hasOpenConnection = false;
}
else
{
Debug.Assert(true, "Unexpected DvtkData Message descendant type.");
}
WriteInformation("... " + receivedMessage.ToString() + " received.");
// If the options AutoValidate is true, try to validate as much
// as possible for the received message.
if (Options.AutoValidate)
{
Validate(receivedMessage);
}
MessageReceived(receivedMessage);
if (receivedMessage is ReleaseRq)
{
if (AssociationReleasedEvent != null)
{
AssociationReleasedEvent(this);
}
}
}
return (receivedMessage);
}
/// <summary>
/// Sends a Dicom A_ASSOCIATE_RJ.
/// </summary>
/// <param name="result">The result as defined in the Dicom standard.</param>
/// <param name="source">The source as defined in the Dicom standard.</param>
/// <param name="reason">The reason as defined in the Dicom standard.</param>
/// <returns>The sent A_ASSOCIATE_RJ.</returns>
/// <exception cref="System.Exception">
/// Sending of the A_ASSOCIATE_RJ fails.
/// </exception>
protected internal AssociateRj SendAssociateRj(Byte result, Byte source, Byte reason)
{
AssociateRj associateRj = new AssociateRj(new DvtkData.Dul.A_ASSOCIATE_RJ(result, source, reason));
SendMessage(associateRj);
return(associateRj);
}
/// <summary>
/// Sends a Dicom A_ASSOCIATE_RJ.
/// </summary>
/// <returns>The sent A_ASSOCIATE_RJ.</returns>
/// <exception cref="System.Exception">
/// Sending of the A_ASSOCIATE_RJ fails.
/// </exception>
protected internal AssociateRj SendAssociateRj()
{
AssociateRj associateRj = new AssociateRj(new DvtkData.Dul.A_ASSOCIATE_RJ());
SendMessage(associateRj);
return (associateRj);
}
public override void BeforeHandlingAssociateReject(AssociateRj associateRj)
{
this.SendingMessageEvent -= new SendingMessageEventHandler(QRScp_SendingMessageEvent);
this.MessageReceivedEvent -= new MessageReceivedEventHandler(QRScp_MessageReceivedEvent);
base.BeforeHandlingAssociateReject(associateRj);
}