/// <summary>
/// Override this method to handle an A-ASSOCIATE-AC.
/// </summary>
/// <param name="associateAc">The received A-ASSOCIATE-AC.</param>
/// <returns>Return true when this methods has handled the received A-ASSOCIATE-AC, otherwise false.</returns>
public virtual bool HandleAssociateAccept(AssociateAc associateAc)
{
return false;
}
// TODO!!!: split up in three different methods and add code comments.
public AssociateAc SendAssociateAc(params Object[] parameters)
{
// Start Interface logging.
// InterfaceLogging.Start(this, parameters);
AssociateAc associateAc = new AssociateAc(new DvtkData.Dul.A_ASSOCIATE_AC());
associateAc.DvtkDataAssociateAc.CallingAETitle = DvtkScriptSession.SutSystemSettings.AeTitle;
associateAc.DvtkDataAssociateAc.CalledAETitle = DvtkScriptSession.DvtSystemSettings.AeTitle;
associateAc.DvtkDataAssociateAc.UserInformation.MaximumLength.MaximumLengthReceived = DvtkScriptSession.DvtSystemSettings.MaximumLengthReceived;
associateAc.DvtkDataAssociateAc.UserInformation.ImplementationClassUid.UID = DvtkScriptSession.DvtSystemSettings.ImplementationClassUid;
if (!(parameters[0] is PresentationContext))
{
if (this.lastAssociateRq == null)
{
DvtkHighLevelInterfaceException.Throw("No associate request received.");
}
else
{
SetAcceptedPresentationContexts(this.lastAssociateRq, associateAc, parameters);
}
}
else
{
// Parse all parameters of this method.
foreach(Object parameter in parameters)
{
PresentationContext presentationContext = parameter as PresentationContext;
// If parameter is of type PresentationContext...
if (presentationContext != null)
{
// If the presentation context can be interpreted as a PC for an A_ASSOCIATE_AC...
if (presentationContext.InterpretAsPcForAssociateAc())
{
DvtkData.Dul.AcceptedPresentationContext acceptedPresentationContext = new DvtkData.Dul.AcceptedPresentationContext();
acceptedPresentationContext.AbstractSyntax = new DvtkData.Dul.AbstractSyntax(presentationContext.SopClass);
acceptedPresentationContext.TransferSyntax = new DvtkData.Dul.TransferSyntax(presentationContext.TransferSyntaxes[0] as String);
acceptedPresentationContext.Result = presentationContext.Result;
associateAc.DvtkDataAssociateAc.AddPresentationContexts(acceptedPresentationContext);
}
else
{
DvtkHighLevelInterfaceException.Throw("Error while interpreting parameters for PresentationContext");
}
}
else
{
DvtkHighLevelInterfaceException.Throw("Not all arguments could be used");
}
}
}
Dvtk.Sessions.SendReturnCode sendReturnCode = DvtkScriptSession.Send(associateAc.DvtkDataAssociateAc);
if (sendReturnCode != Dvtk.Sessions.SendReturnCode.Success)
{
DvtkHighLevelInterfaceException.Throw("Error sending associate accept (" + sendReturnCode.ToString() + ")");
}
else
{
associateAc.IsSend = true;
ThreadManager.DataWarehouse.AddMessage(this, associateAc);
}
// End Interface logging.
// InterfaceLogging.End(associateAc);
return(associateAc);
}
/// <summary>
/// Receive a message (can be a Dicom or Dul message).
///
/// An exception is thrown when receiving of a message fails.
/// </summary>
/// <returns>The received message.</returns>
public Message ReceiveMessage()
{
// Start Interface logging.
// InterfaceLogging.Start(this);
DicomProtocolMessage receivedMessage = null;
DvtkData.Message dvtkDataMessage = null;
WriteInformation("Receive message...");
Dvtk.Sessions.ReceiveReturnCode receiveReturnCode = DvtkScriptSession.Receive(out dvtkDataMessage);
if (receiveReturnCode != Dvtk.Sessions.ReceiveReturnCode.Success)
{
DvtkHighLevelInterfaceException.Throw("Error while trying to receive a Message. Error code " + receiveReturnCode.ToString() + ".");
}
else
{
if (dvtkDataMessage is DvtkData.Dimse.DicomMessage)
{
receivedMessage = new DicomMessage(dvtkDataMessage as DvtkData.Dimse.DicomMessage);
}
else if (dvtkDataMessage is DvtkData.Dul.A_ASSOCIATE_RQ)
{
lastAssociateRq = new AssociateRq(dvtkDataMessage as DvtkData.Dul.A_ASSOCIATE_RQ);
receivedMessage = lastAssociateRq;
}
else if (dvtkDataMessage is DvtkData.Dul.A_ASSOCIATE_AC)
{
receivedMessage = new AssociateAc(dvtkDataMessage as DvtkData.Dul.A_ASSOCIATE_AC);
}
else if (dvtkDataMessage is DvtkData.Dul.A_ASSOCIATE_RJ)
{
receivedMessage = new AssociateRj(dvtkDataMessage as DvtkData.Dul.A_ASSOCIATE_RJ);
}
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);
}
else if (dvtkDataMessage is DvtkData.Dul.A_ABORT)
{
receivedMessage = new Abort(dvtkDataMessage as DvtkData.Dul.A_ABORT);
}
else
{
Debug.Assert(true, "Unexpected DvtkData Message descendant type.");
}
// If the options AutoValidate is true, try to validate as much
// as possible for the received message.
if (Options.AutoValidate)
{
Validate(receivedMessage);
}
receivedMessage.IsReceived = true;
ThreadManager.DataWarehouse.AddMessage(this, receivedMessage);
if (receivedMessage is ReleaseRq)
{
if (AssociationReleasedEvent != null)
{
AssociationReleasedEvent(this);
}
}
}
// End Interface logging.
// InterfaceLogging.End(receivedMessage);
return(receivedMessage);
}
private void SetAcceptedPresentationContexts(AssociateRq associateRq, AssociateAc associateAc, params Object[] parameters)
{
TransferSyntaxes transferSyntaxes = null;
SopClasses sopClasses = null;
if (parameters.Length == 1)
{
transferSyntaxes = parameters[0] as TransferSyntaxes;
if (transferSyntaxes == null)
{
DvtkHighLevelInterfaceException.Throw("Error while interpreting parameters.");
}
}
else if (parameters.Length == 2)
{
transferSyntaxes = parameters[0] as TransferSyntaxes;
if (transferSyntaxes == null)
{
sopClasses = parameters[0] as SopClasses;
if (sopClasses == null)
{
DvtkHighLevelInterfaceException.Throw("Error while interpreting parameters.");
}
else
{
transferSyntaxes = parameters[1] as TransferSyntaxes;
if (transferSyntaxes == null)
{
DvtkHighLevelInterfaceException.Throw("Error while interpreting parameters.");
}
}
}
else
{
sopClasses = parameters[1] as SopClasses;
if (sopClasses == null)
{
DvtkHighLevelInterfaceException.Throw("Error while interpreting parameters.");
}
}
}
else
{
DvtkHighLevelInterfaceException.Throw("Error while interpreting parameters.");
}
foreach(DvtkData.Dul.RequestedPresentationContext dvtkDataRequestedPresentationContext in associateRq.DvtkDataAssociateRq.PresentationContexts)
{
String sopClassToAccept = null;
String transferSyntaxToAccept = null;
if (sopClasses == null)
{
sopClassToAccept = dvtkDataRequestedPresentationContext.AbstractSyntax.UID;
}
else
{
foreach(String acceptedSopClass in sopClasses.list)
{
if (acceptedSopClass == dvtkDataRequestedPresentationContext.AbstractSyntax.UID)
{
sopClassToAccept = dvtkDataRequestedPresentationContext.AbstractSyntax.UID;
break;
}
}
}
if (sopClassToAccept != null)
{
foreach(String acceptedTransferSyntax in transferSyntaxes.list)
{
foreach(DvtkData.Dul.TransferSyntax requestedDvtkDataTransferSyntax in dvtkDataRequestedPresentationContext.TransferSyntaxes)
{
if (acceptedTransferSyntax == requestedDvtkDataTransferSyntax.UID)
{
transferSyntaxToAccept = requestedDvtkDataTransferSyntax.UID;
break;
}
}
if (transferSyntaxToAccept != null)
{
break;
}
}
if (transferSyntaxToAccept != null)
{
DvtkData.Dul.AcceptedPresentationContext dvtkDataAcceptedPresentationContext = new DvtkData.Dul.AcceptedPresentationContext();
dvtkDataAcceptedPresentationContext.AbstractSyntax = new DvtkData.Dul.AbstractSyntax(sopClassToAccept);
dvtkDataAcceptedPresentationContext.TransferSyntax = new DvtkData.Dul.TransferSyntax(transferSyntaxToAccept);
dvtkDataAcceptedPresentationContext.Result = 0;
associateAc.DvtkDataAssociateAc.AddPresentationContexts(dvtkDataAcceptedPresentationContext);
}
}
}
}
/// <summary>
/// This method is called after an A-ASSOCIATE-AC 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="associateAc">The received A-ASSOCIATE-AC</param>
public virtual void BeforeHandlingAssociateAccept(AssociateAc associateAc)
{
// Do nothing.
}
/// <summary>
/// This method is called after an A-ASSOCIATE-AC 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="associateAc">The received A-ASSOCIATE-AC.</param>
public virtual void AfterHandlingAssociateAccept(AssociateAc associateAc)
{
// Do nothing.
}
