public void Register(ApplicationEntity entity)
{
if (hosts.ContainsKey(entity.Title))
{
hosts[entity.Title] = entity;
}
else
{
hosts.Add(entity.Title, entity);
}
}
/// <summary>
/// Establish an association between two Dicom devices.
/// </summary>
/// <param name="scp">The called device.</param>
/// <param name="scu">The calling device.</param>
/// <returns></returns>
public bool Open(ApplicationEntity scp, ApplicationEntity scu)
{
this.scp = scp;
this.scu = scu;
// connect
if (!Connect(scp.Address, scp.Port))
{
return(false);
}
machineThread = new Thread(new ThreadStart(StateMachine));
machineThread.Name = "Association.StateMachine";
machineThread.Start();
if (!threadEvent.WaitOne(timeout, false))
{
Logging.Log("Background thread not started.");
State = State.Closed;
return(false);
}
// get request
AssociateRequestPdu pdu = GetAssociationRequestPdu();
// write pdu
MemoryStream memory = new MemoryStream();
pdu.Write(memory);
//pdu.Dump();
Dump(">> " + "A-ASSOCIATE-RQ", memory.ToArray());
State = State.Opening;
NetworkStream output = new NetworkStream(socket, FileAccess.Write, false);
output.Write(memory.ToArray(), 0, (int)memory.Length);
if (!completeEvent.WaitOne(timeout, false))
{
Logging.Log("A-ASSOCIATE-RQ FAILED");
State = State.Closed;
return(false);
}
return(State == State.Open);
}
private bool SendImage(ApplicationEntity host, string path)
{
bool result = true;
try
{
DataSet dicom = new DataSet();
dicom.Read(path);
string uid = (string)dicom[t.SOPClassUID].Value;
StorageServiceSCU storage = new StorageServiceSCU(uid);
storage.Syntaxes.Add(Syntax.ImplicitVrLittleEndian);
Association association = new Association();
association.AddService(storage);
if (association.Open(host))
{
if (storage.Active)
{
try
{
storage.Store(dicom);
}
catch (Exception ex)
{
result = false;
Debug.WriteLine(ex.Message);
}
}
}
else
{
result = false;
//Debug.WriteLine("\ncan't Open.");
}
association.Close();
}
catch (Exception)
{
result = false;
}
return(result);
}
private void ParseApplicationEntity(string line, Dictionary <string, ApplicationEntity> hosts)
{
string[] parts = line.Split(",".ToCharArray());
if (parts.Length >= 3)
{
string title = parts[0].ToUpper().Trim();
if (!hosts.ContainsKey(title))
{
hosts[title] = new ApplicationEntity(title, IPAddress.Parse(parts[1].Trim()), Int32.Parse(parts[2].Trim()));
}
else
{
Logging.Log(LogLevel.Warning, String.Format("ignoring duplicate hosts entry, line={0}.", line));
}
}
else
{
Logging.Log(LogLevel.Error, String.Format("hosts entry has too few fields, line={0}.", line));
}
}
public void OnData(MessageType control, Message message)
{
Logging.Log("\nCMoveServiceSCP({0}).OnData", Reflection.GetName(typeof(SOPClass), this.SOPClassUId));
DataSet dicom = message.Dicom;
if (MessageControl.IsCommand(control))
{
MessageId = (ushort)dicom[t.MessageId].Value;
// TODO accomodate trailing spaces
destination = ((string)dicom[t.MoveDestination].Value).TrimEnd();
}
else
{
PresentationDataValue pdv;
PresentationDataPdu command;
DataSet fragment = new DataSet();
if (!this.Association.Hosts.ContainsKey(destination))
{
pdv = new PresentationDataValue(PresentationContextId, Syntaxes[0], MessageType.LastCommand);
fragment.Part10Header = false;
fragment.TransferSyntaxUID = syntaxes[0];
fragment.Add(t.GroupLength(0), (uint)0);
fragment.Add(t.AffectedSOPClassUID, this.SOPClassUId);
fragment.Add(t.CommandField, (ushort)CommandType.C_MOVE_RSP);
fragment.Add(t.MessageIdBeingRespondedTo, MessageId);
fragment.Add(t.CommandDataSetType, (ushort)DataSetType.DataSetNotPresent);
fragment.Add(t.Status, (ushort)0xA801);
pdv.Dicom = fragment;
command = new PresentationDataPdu(syntaxes[0]);
command.Values.Add(pdv);
SendPdu("C-MOVE-RSP", command);
return;
}
ApplicationEntity host = this.Association.Hosts[destination];
List <string> imagelist = Query(dicom);
int failed = 0;
for (int n = 0; n < imagelist.Count; n++)
{
if (!SendImage(host, imagelist[n]))
{
failed++;
}
pdv = new PresentationDataValue(PresentationContextId, Syntaxes[0], MessageType.LastCommand);
fragment = new DataSet();
fragment.Part10Header = false;
fragment.TransferSyntaxUID = syntaxes[0];
fragment.Add(t.GroupLength(0), (uint)0);
fragment.Add(t.AffectedSOPClassUID, this.SOPClassUId);
fragment.Add(t.CommandField, (ushort)CommandType.C_MOVE_RSP);
fragment.Add(t.MessageIdBeingRespondedTo, MessageId);
fragment.Add(t.CommandDataSetType, (ushort)DataSetType.DataSetPresent);
fragment.Add(t.Status, (ushort)0xff00);
fragment.Set(t.NumberofRemainingSuboperations, imagelist.Count - n - 1);
fragment.Set(t.NumberofCompletedSuboperations, n + 1 - failed);
fragment.Set(t.NumberofFailedSuboperations, failed);
fragment.Set(t.NumberofWarningSuboperations, 0);
pdv.Dicom = fragment;
command = new PresentationDataPdu(syntaxes[0]);
command.Values.Add(pdv);
SendPdu("C-MOVE-RSP", command);
}
int status = (failed > 0) ? 0xB000 : 0x0000;
pdv = new PresentationDataValue(PresentationContextId, Syntaxes[0], MessageType.LastCommand);
fragment = new DataSet();
fragment.Part10Header = false;
fragment.TransferSyntaxUID = syntaxes[0];
fragment.Add(t.GroupLength(0), (uint)0);
fragment.Add(t.AffectedSOPClassUID, this.SOPClassUId);
fragment.Add(t.CommandField, (ushort)CommandType.C_FIND_RSP);
fragment.Add(t.MessageIdBeingRespondedTo, MessageId);
fragment.Add(t.CommandDataSetType, (ushort)DataSetType.DataSetNotPresent);
fragment.Add(t.Status, (ushort)status);
fragment.Set(t.NumberofCompletedSuboperations, imagelist.Count);
fragment.Set(t.NumberofFailedSuboperations, 0);
fragment.Set(t.NumberofWarningSuboperations, 0);
pdv.Dicom = fragment;
command = new PresentationDataPdu(syntaxes[0]);
command.Values.Add(pdv);
SendPdu("C-MOVE-RSP", command);
}
}
public Server(ApplicationEntity host) :
this(host.Title, host.Port)
{
}
private void AssociateRequestReceived(byte[] pdu)
{
Dump("<< A-ASSOCIATE-RQ", pdu);
//#if DEBUG
// if (number != 0) Console.WriteLine("association {0,4} opened", number);
//#endif
bool reject = true;
// parse request
MemoryStream memory = new MemoryStream(pdu, 0, pdu.Length);
AssociateRequestPdu request = new AssociateRequestPdu();
request.Read(memory);
//request.Dump();
CallingAeTitle = request.calling.TrimEnd();
AssociateRequestPdu accept = new AssociateRequestPdu(ProtocolDataUnit.Type.A_ASSOCIATE_AC, request.called, request.calling);
// record as much as we can about the caller
IPEndPoint lep = socket.LocalEndPoint as IPEndPoint;
if (lep != null)
{
scp = new ApplicationEntity(request.calling.TrimEnd(" ".ToCharArray()), lep.Address, lep.Port);
}
else
{
scp = new ApplicationEntity(request.calling.TrimEnd(" ".ToCharArray()), 0);
}
IPEndPoint rep = socket.RemoteEndPoint as IPEndPoint;
if (rep != null)
{
scu = new ApplicationEntity(request.calling.TrimEnd(" ".ToCharArray()), rep.Address, rep.Port);
CallingAeIpAddress = rep.Address;
}
else
{
scu = new ApplicationEntity(request.calling.TrimEnd(" ".ToCharArray()), 0);
}
foreach (Item item in request.fields)
{
switch ((ItemType)item.Type)
{
case ItemType.ApplicationItem:
ApplicationContextItem aci = item as ApplicationContextItem;
accept.fields.Add(aci);
break;
case ItemType.PresentationContextItemRQ:
PresentationContextItem temp = item as PresentationContextItem;
PresentationContextItem response = new PresentationContextItem((byte)ItemType.PresentationContextItemAC, temp.PresentationContextId);
SyntaxItem abs = ((SyntaxItem)temp.fields[0]);
ServiceClass service = null;
SyntaxItem transfer = null;
for (int n = 1; n < temp.fields.Count; n++)
{
transfer = temp.fields[n] as SyntaxItem;
service = FindServiceClass(abs.Syntax, transfer.Syntax);
if (service != null)
{
break;
}
}
if (service == null)
{
response.PciReason = PCIReason.AbstractSyntaxNotSupported;
Logging.Log("SCU Reject PresentationContext={0} abstract={1}", temp.PresentationContextId, Reflection.GetName(typeof(SOPClass), abs.Syntax));
}
else
{
service.PresentationContextId = temp.PresentationContextId;
service.Syntaxes.Clear();
service.Syntaxes.Add(transfer.Syntax);
service.PciReason = response.PciReason = PCIReason.Accepted;
Logging.Log("SCU Accept PresentationContext={0} abstract={1} transfer={2}", service.PresentationContextId, Reflection.GetName(typeof(SOPClass), abs.Syntax), Reflection.GetName(typeof(Syntax), transfer.Syntax));
reject = false;
}
response.fields.Add(transfer);
accept.fields.Add(response);
break;
case ItemType.UserInformationItem:
UserInfoItem uii = item as UserInfoItem;
int count = uii.fields.Count;
// note: this is editing the sent UserInfoItem in place rather
// than making a new object, make a new object
for (int n = count - 1; n >= 0; n--)
{
Item field = uii.fields[n];
switch ((ItemType)field.Type)
{
case ItemType.MaximumLengthSubItem:
{
MaximumLengthItem length = field as MaximumLengthItem;
packetSize = length.PacketSize;
}
break;
case ItemType.ImplementationClassUidSubItem:
{
SyntaxItem implementation = field as SyntaxItem;
implementation.Syntax = ImplementationClassUid;
}
break;
case ItemType.ImplementationVersionNameSubItem:
{
SyntaxItem implementation = field as SyntaxItem;
implementation.Syntax = version;
}
break;
case ItemType.AsynchronousOperationsWindowSubItem:
case ItemType.ScuScpRoleSubItem:
default:
uii.fields.RemoveAt(n);
break;
}
}
accept.fields.Add(uii);
break;
default:
break;
}
}
if (reject)
{
Abort(AbortSource.ServiceProvider, AbortReason.NoReasonGiven);
}
else
{
Send("A-ASSOCIATE-AC", accept);
}
}
/// <summary>
/// Establish an association with an SCP using the current machine name as the calling AE title.
/// </summary>
/// <param name="provider">The AE title of the SCP.</param>
/// <param name="address">The TCP/IP address of the SCP.</param>
/// <param name="port">The TCP/IP port of the SCP.</param>
/// <returns></returns>
public bool Open(ApplicationEntity host)
{
return(Open(host, new ApplicationEntity(Dns.GetHostName(), IPAddress.Loopback, 0)));
}
