/// <summary>
/// Retrieve data from the Information Model using the given retrieve message.
/// </summary>
/// <param name="retrieveMessage">Message used to retrieve the Information Model.</param>
/// <returns>File list - containing the filenames of all instances matching the retrieve dataset attributes.</returns>
public DvtkData.Collections.StringCollection RetrieveInformationModel(DicomMessage retrieveMessage)
{
PatientRootInformationModel root = (PatientRootInformationModel)Root;
return(root.RetrieveInformationModel(retrieveMessage.DataSet.DvtkDataDataSet));
}
public override bool HandleCMoveRequest(DicomMessage retrieveMessage)
{
// try to get the SOP Class Uid so that we know which Information Model to use.
DvtkHighLevelInterface.Dicom.Other.Values values = retrieveMessage.CommandSet["0x00000002"].Values;
System.String sopClassUid = values[0];
DvtkData.Dul.AbstractSyntax abstractSyntax = new DvtkData.Dul.AbstractSyntax(sopClassUid);
// try to get the Move Destination AE.
values = retrieveMessage.CommandSet["0x00000600"].Values;
string vr = retrieveMessage.CommandSet["0x00000600"].VR.ToString();
System.String moveDestinationAE = values[0];
string hexString = moveDestinationAE;
System.Text.StringBuilder sb = new System.Text.StringBuilder();
if (DicomThread.Options.LoadedDefinitionFileNames.Length < 10)
{
WriteWarning("Some of the definition files is not loaded properly.");
}
if (vr == "UN")
{
for (int i = 0; i <= hexString.Length - 2; i += 2)
{
sb.Append(Convert.ToString(Convert.ToChar(Int32.Parse(hexString.Substring(i, 2), System.Globalization.NumberStyles.HexNumber))));
}
}
else if (vr == "AE")
{
sb.Append(moveDestinationAE);
}
if (moveDestinationAE == null || moveDestinationAE == "")
{
DicomMessage responseMessage = new DicomMessage(DvtkData.Dimse.DimseCommand.CMOVERSP);
responseMessage.Set("0x00000900", VR.US, 0xA801);
responseMessage.Set("0x00000902", VR.LO, "Unknown Move Destination");
this.Send(responseMessage);
return(true);
}
MoveAEdetailsIndex = FindMoveAEDetails(sb.ToString());
if (IsHaveMoveDestinations && MoveAEdetailsIndex == -1)
{
DicomMessage responseMessage = new DicomMessage(DvtkData.Dimse.DimseCommand.CMOVERSP);
responseMessage.Set("0x00000900", VR.US, 0xA801);
responseMessage.Set("0x00000902", VR.LO, "Move Destination not registered in SCP");
this.Send(responseMessage);
WriteWarning("Move destination is not registered in SCP");
return(true);
}
DvtkData.Collections.StringCollection retrieveList = null;
// check if we should use the Patient Root Information Model
if ((abstractSyntax.UID == DvtkData.Dul.AbstractSyntax.Patient_Root_Query_Retrieve_Information_Model_MOVE.UID) &&
(PatientRootInformationModel != null))
{
// check if the information model should be refreshed before retrieving
if (RefreshInformationModelBeforeUse == true)
{
PatientRootInformationModel.RefreshInformationModel();
}
// perform retrieve
retrieveList = PatientRootInformationModel.RetrieveInformationModel(retrieveMessage);
}
// check if we should use the Study Root Information Model
else if ((abstractSyntax.UID == DvtkData.Dul.AbstractSyntax.Study_Root_Query_Retrieve_Information_Model_MOVE.UID) &&
(StudyRootInformationModel != null))
{
// check if the information model should be refreshed before retrieving
if (RefreshInformationModelBeforeUse == true)
{
StudyRootInformationModel.RefreshInformationModel();
}
// perform retrieve
retrieveList = StudyRootInformationModel.RetrieveInformationModel(retrieveMessage);
}
// check if we should use the Patient Study Only Information Model
else if ((abstractSyntax.UID == DvtkData.Dul.AbstractSyntax.Patient_Study_Only_Query_Retrieve_Information_Model_MOVE.UID) &&
(PatientStudyOnlyInformationModel != null))
{
// check if the information model should be refreshed before retrieving
if (RefreshInformationModelBeforeUse == true)
{
PatientStudyOnlyInformationModel.RefreshInformationModel();
}
// perform retrieve
retrieveList = PatientStudyOnlyInformationModel.RetrieveInformationModel(retrieveMessage);
}
// process the retrieve list
return(ProcessRetrieveList(moveDestinationAE, retrieveList));
}
/// <summary>
/// Check if the given instance is present in the Information Model. The instance will be at the leaf nodes of the Information Model.
/// </summary>
/// <param name="sopClassUid">SOP Class UID to search for.</param>
/// <param name="sopInstanceUid">SOP Instance UID to search for.</param>
/// <returns>Boolean - true if instance found in the Information Model, otherwise false.</returns>
public bool IsInstanceInInformationModel(System.String sopClassUid, System.String sopInstanceUid)
{
PatientRootInformationModel root = (PatientRootInformationModel)Root;
return(root.IsInstanceInInformationModel(sopClassUid, sopInstanceUid));
}
/// <summary>
/// Overridden C-FIND-RQ message handler that makes use of the appropriate Information Model to handle the query.
/// </summary>
/// <param name="queryMessage">C-FIND-RQ Identifier (Dataset) containing query attributes.</param>
/// <returns>Boolean - true if dicomMessage handled here.</returns>
public override bool HandleCFindRequest(DicomMessage queryMessage)
{
// Validate the received message
//System.String iodName = DicomThread.GetIodNameFromDefinition(queryMessage);
//DicomThread.Validate(queryMessage, iodName);
// try to get the SOP Class Uid so that we know which Information Model to use.
DvtkHighLevelInterface.Dicom.Other.Values values = queryMessage.CommandSet["0x00000002"].Values;
System.String sopClassUid = values[0];
DvtkData.Dul.AbstractSyntax abstractSyntax = new DvtkData.Dul.AbstractSyntax(sopClassUid);
// check if we should use the Patient Root Information Model
if ((abstractSyntax.UID == DvtkData.Dul.AbstractSyntax.Patient_Root_Query_Retrieve_Information_Model_FIND.UID) &&
(PatientRootInformationModel != null))
{
// check if the information model should be refreshed before querying
if (RefreshInformationModelBeforeUse == true)
{
PatientRootInformationModel.RefreshInformationModel();
}
// perform query
DicomMessageCollection responseMessages = PatientRootInformationModel.QueryInformationModel(queryMessage);
// handle responses
foreach (DicomMessage responseMessage in responseMessages)
{
int waitedTime = 0;
// Check for cancel message from SCU
if (WaitForPendingDataInNetworkInputBuffer(100, ref waitedTime))
{
DicomMessage cancelRq = ReceiveDicomMessage();
if (cancelRq.CommandSet.DimseCommand == DvtkData.Dimse.DimseCommand.CCANCELRQ)
{
// set up the C-FIND-RSP with cancel status
DicomMessage respMessage = new DicomMessage(DvtkData.Dimse.DimseCommand.CFINDRSP);
respMessage.Set("0x00000900", DvtkData.Dimse.VR.US, 0xFE00);
// send the response
this.Send(respMessage);
break;
}
}
this.Send(responseMessage);
}
}
// check if we should use the Study Root Information Model
else if ((abstractSyntax.UID == DvtkData.Dul.AbstractSyntax.Study_Root_Query_Retrieve_Information_Model_FIND.UID) &&
(StudyRootInformationModel != null))
{
// check if the information model should be refreshed before querying
if (RefreshInformationModelBeforeUse == true)
{
StudyRootInformationModel.RefreshInformationModel();
}
// perform query
DicomMessageCollection responseMessages = StudyRootInformationModel.QueryInformationModel(queryMessage);
// handle responses
foreach (DicomMessage responseMessage in responseMessages)
{
int waitedTime = 0;
// Check for cancel message from SCU
if (WaitForPendingDataInNetworkInputBuffer(100, ref waitedTime))
{
DicomMessage cancelRq = ReceiveDicomMessage();
if (cancelRq.CommandSet.DimseCommand == DvtkData.Dimse.DimseCommand.CCANCELRQ)
{
// set up the C-FIND-RSP with cancel status
DicomMessage respMessage = new DicomMessage(DvtkData.Dimse.DimseCommand.CFINDRSP);
respMessage.Set("0x00000900", DvtkData.Dimse.VR.US, 0xFE00);
// send the response
this.Send(respMessage);
break;
}
}
this.Send(responseMessage);
}
}
// check if we should use the Patient Study Only Information Model
else if ((abstractSyntax.UID == DvtkData.Dul.AbstractSyntax.Patient_Study_Only_Query_Retrieve_Information_Model_FIND.UID) &&
(PatientStudyOnlyInformationModel != null))
{
// check if the information model should be refreshed before querying
if (RefreshInformationModelBeforeUse == true)
{
PatientStudyOnlyInformationModel.RefreshInformationModel();
}
// perform query
DicomMessageCollection responseMessages = PatientStudyOnlyInformationModel.QueryInformationModel(queryMessage);
// handle responses
foreach (DicomMessage responseMessage in responseMessages)
{
int waitedTime = 0;
// Check for cancel message from SCU
if (WaitForPendingDataInNetworkInputBuffer(100, ref waitedTime))
{
DicomMessage cancelRq = ReceiveDicomMessage();
if (cancelRq.CommandSet.DimseCommand == DvtkData.Dimse.DimseCommand.CCANCELRQ)
{
// set up the C-FIND-RSP with cancel status
DicomMessage respMessage = new DicomMessage(DvtkData.Dimse.DimseCommand.CFINDRSP);
respMessage.Set("0x00000900", DvtkData.Dimse.VR.US, 0xFE00);
// send the response
this.Send(respMessage);
break;
}
}
this.Send(responseMessage);
}
}
else
{
// should never get here - but send a final CFINDRSP anyway
DicomMessage responseMessage = new DicomMessage(DvtkData.Dimse.DimseCommand.CFINDRSP);
this.Send(responseMessage);
}
// message handled
return(true);
}
