/// <summary>
/// Scan the files to send, and create presentation contexts for each abstract syntax to send.
/// </summary>
protected override void SetPresentationContexts()
{
byte pcid = AssociationParameters.FindAbstractSyntax(MoveSopClass);
if (pcid == 0)
{
pcid = AssociationParameters.AddPresentationContext(MoveSopClass);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ExplicitVrLittleEndian);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ImplicitVrLittleEndian);
}
}
/// <summary>
/// Scan the files to send, and create presentation contexts for each abstract syntax to send.
/// </summary>
protected override void SetPresentationContexts()
{
byte pcid = AssociationParameters.AddPresentationContext(SopClass.StorageCommitmentPushModelSopClass);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ExplicitVrLittleEndian);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ImplicitVrLittleEndian);
pcid = AssociationParameters.AddPresentationContext(SopClass.MrImageStorage);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ExplicitVrLittleEndian);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ImplicitVrLittleEndian);
}
/// <summary>
/// Adds the sop class to presentation context for Explicit and Implicit Vr Little Endian
/// </summary>
/// <param name="sopClass">The sop class.</param>
/// <exception cref="DicomException"/>
/// <exception cref="ArgumentNullException"/>
protected void AddSopClassToPresentationContext(SopClass sopClass)
{
if (sopClass == null)
{
throw new ArgumentNullException("sopClass");
}
byte pcid = AssociationParameters.FindAbstractSyntax(sopClass);
if (pcid == 0)
{
pcid = AssociationParameters.AddPresentationContext(sopClass);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ExplicitVrLittleEndian);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ImplicitVrLittleEndian);
}
else
{
throw new DicomException("Cannot find SopClass in association parameters: " + sopClass);
}
}
/// <summary>
/// Scan the files to send, and create presentation contexts for each abstract syntax to send.
/// </summary>
protected override void SetPresentationContexts()
{
foreach (StorageInstance sendStruct in _storageInstanceList)
{
// skip if failed in LoadStorageInstanceInfo, ie file not found
if (sendStruct.SendStatus == DicomStatuses.ProcessingFailure)
{
continue;
}
if (sendStruct.TransferSyntax.Encapsulated)
{
// If the image is encapsulated, make sure there's an exact match of the transfer
// syntax, if not, just make sure there's an unencapsulated transfer syntax.
byte pcid = AssociationParameters.FindAbstractSyntaxWithTransferSyntax(sendStruct.SopClass,
sendStruct.TransferSyntax);
if (pcid == 0)
{
pcid = AssociationParameters.AddPresentationContext(sendStruct.SopClass);
AssociationParameters.AddTransferSyntax(pcid, sendStruct.TransferSyntax);
}
// Check for a codec, and if it exists, also register an uncompressed context.
IDicomCodec codec = DicomCodecRegistry.GetCodec(sendStruct.TransferSyntax);
if (codec != null)
{
pcid = AssociationParameters.FindAbstractSyntaxWithTransferSyntax(sendStruct.SopClass,
TransferSyntax.ExplicitVrLittleEndian);
if (pcid == 0)
{
pcid = AssociationParameters.AddPresentationContext(sendStruct.SopClass);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ExplicitVrLittleEndian);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ImplicitVrLittleEndian);
}
}
}
else
{
byte pcid = AssociationParameters.FindAbstractSyntaxWithTransferSyntax(sendStruct.SopClass,
TransferSyntax.ExplicitVrLittleEndian);
if (pcid == 0)
{
pcid = AssociationParameters.AddPresentationContext(sendStruct.SopClass);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ExplicitVrLittleEndian);
AssociationParameters.AddTransferSyntax(pcid, TransferSyntax.ImplicitVrLittleEndian);
}
}
// Now add the preferred syntaxes, if its been set.
if (_preferredSyntaxes != null)
{
SupportedSop supportedSop;
if (_preferredSyntaxes.TryGetValue(sendStruct.SopClass.Uid, out supportedSop))
{
foreach (TransferSyntax syntax in supportedSop.SyntaxList)
{
byte pcid = AssociationParameters.FindAbstractSyntaxWithTransferSyntax(sendStruct.SopClass,
syntax);
// If we have more than 1 transfer syntax associated with the preferred, we want to
// have a dedicated presentation context for the preferred, so that we ensure it
// gets accepted if the SCP supports it. This is only really going to happen if
// the preferred is Explicit VR Little Endian or Implicit VR Little Endian.
if ((pcid == 0) ||
(AssociationParameters.GetPresentationContextTransferSyntaxes(pcid).Count > 1))
{
pcid = AssociationParameters.AddPresentationContext(sendStruct.SopClass);
AssociationParameters.AddTransferSyntax(pcid, syntax);
}
}
}
}
}
}
