/**
* Queries the archive for DICOM objects matching Attribute Keys defined in the loacal field
* "keys". This field is set by the constructor out of the configuration parameters or by the
* methods setQueryKeys(Configuration) and setQueryKeys(Dataset). See PS 3.4 - Annex C
* QUERY/RETRIEVE SERVICE CLASS.
*
* <p>The method returns, when the result is received from the communication partner.
*
* @return the result of the cFIND as a Vector of Dataset objects each specifying one matching
* DICOM object. If no matching objects are found an empty Vector is returned.
* @throws ConnectException
* @throws IOException
*/
public Vector cFIND() throws ConnectException, IOException, InterruptedException {
List dimseList;
Vector datasetVector;
// An association must be active
if (aassoc == null) {
throw new ConnectException("No Association established");
}
// Test, if Presentation Context for C-FIND is supported
// API doc: Association.getAcceptedPresContext(String asuid, String tsuid)
// UIDs.StudyRootQueryRetrieveInformationModelGET
if ((pc =
aassoc
.getAssociation()
.getAcceptedPresContext(
UIDs.StudyRootQueryRetrieveInformationModelFIND,
UIDs.ExplicitVRLittleEndian))
== null
&& (pc =
aassoc
.getAssociation()
.getAcceptedPresContext(
UIDs.StudyRootQueryRetrieveInformationModelFIND,
UIDs.ImplicitVRLittleEndian))
== null) {
throw new ConnectException(
"Association does not support presentation context for StudyRootQueryRetrieveInformationModelFIND SOP.");
}
// New Cammand Set, see: DICOM Part 7: Message Exchange, 6.3.1 Command Set Structure
Command rqCmd = dof.newCommand();
// API doc: Command.initCFindRQ(int msgID, String sopClassUID, int priority)
rqCmd.initCFindRQ(assoc.nextMsgID(), UIDs.StudyRootQueryRetrieveInformationModelFIND, priority);
// API doc: AssociationFactorynewDimse(int pcid, Command cmd, Dataset ds)
// DIMSE (DICOM Message Service Element) ist ein Nachrichtendienst in DICOM
Dimse findRq = aFact.newDimse(pc.pcid(), rqCmd, keys);
if (DEBUG) {
StringWriter w = new StringWriter();
w.write("C-FIND RQ Identifier:\n");
keys.dumpDataset(w, null);
log.debug(w.toString());
}
// Invoke active association with find request Dimse
FutureRSP future = aassoc.invoke(findRq);
// Response to the C-FIND request.
// The result cannot be accessed until it has been set.
Dimse findRsp = future.get();
// Get the list of found objects
dimseList = future.listPending();
// >>>> Extract Dataset from Dimse
datasetVector = new Vector();
// If no List of DIMSE objects was generated or it is empty return an empty Vector
if (dimseList == null || dimseList.isEmpty()) {
return datasetVector;
}
// Process all elements
for (int i = 0; i < dimseList.size(); i++) {
datasetVector.addElement(((Dimse) dimseList.get(i)).getDataset());
}
return datasetVector;
}
public Vector cGET(Dataset ds) throws ConnectException, IOException, InterruptedException {
PresContext pc;
List dimseList;
Vector datasetVector;
// An association must be active
if (aassoc == null) {
throw new ConnectException("No Association established");
}
// Test, if Presentation Context for C-MOVE is supported
// API doc: Association.getAcceptedPresContext(String asuid, String tsuid)
if ((pc =
aassoc
.getAssociation()
.getAcceptedPresContext(
UIDs.StudyRootQueryRetrieveInformationModelGET,
UIDs.ExplicitVRLittleEndian))
== null
&& (pc =
aassoc
.getAssociation()
.getAcceptedPresContext(
UIDs.StudyRootQueryRetrieveInformationModelGET,
UIDs.ImplicitVRLittleEndian))
== null) {
throw new ConnectException(
"Association does not support presentation context for StudyRootQueryRetrieveInformationModelMOVE SOP.");
}
// Get the Study Instance UID of the study to mode
String suid = ds.getString(Tags.SOPInstanceUID);
// Prepare info for logging
String patName = ds.getString(Tags.PatientName);
String patID = ds.getString(Tags.PatientID);
String studyDate = ds.getString(Tags.StudyDate);
String prompt =
"Study[" + suid + "] from " + studyDate + " for Patient[" + patID + "]: " + patName;
// log.info("Moving: " + prompt);
// New Cammand Set, see: DICOM Part 7: Message Exchange, 6.3.1 Command Set Structure
Command rqCmd = dof.newCommand();
// API doc: Command.initCMoveRQ(int msgID, String sopClassUID, int priority, String moveDest)
rqCmd.initCGetRSP(assoc.nextMsgID(), UIDs.StudyRootQueryRetrieveInformationModelGET, priority);
Dataset rqDs = dof.newDataset();
rqDs.putCS(Tags.QueryRetrieveLevel, getQueryRetrieveLevel(STUDY_LEVEL));
// Only Unique Key allowed in C-MOVE. PS 3.4 -C.2.2.1 Attribute Types
rqDs.putUI(Tags.SOPInstanceUID, suid);
// API doc: AssociationFactorynewDimse(int pcid, Command cmd, Dataset ds)
// DIMSE (DICOM Message Service Element) ist ein Nachrichtendienst in DICOM
Dimse moveRq = aFact.newDimse(pc.pcid(), rqCmd, rqDs);
// Invoke active association with move request Dimse
FutureRSP future = aassoc.invoke(moveRq);
// Response to the C-MOVE request.
// The result cannot be accessed until it has been set.
Dimse moveRsp = future.get();
Command rspCmd = moveRsp.getCommand();
if (DEBUG) {
StringWriter w = new StringWriter();
w.write("C-FIND RQ Identifier:\n");
keys.dumpDataset(w, null);
log.debug(w.toString());
}
// Invoke active association with find request Dimse
// Response to the C-FIND request.
// The result cannot be accessed until it has been set.
// Get the list of found objects
dimseList = future.listPending();
// >>>> Extract Dataset from Dimse
datasetVector = new Vector();
// If no List of DIMSE objects was generated or it is empty return an empty Vector
if (dimseList == null || dimseList.isEmpty()) {
return datasetVector;
}
// Process all elements
for (int i = 0; i < dimseList.size(); i++) {
datasetVector.addElement(((Dimse) dimseList.get(i)).getDataset());
if (((Dimse) dimseList.get(i)).getDataset() == null)
System.out.println(" Dataset created succesffullyu ");
}
// PS 3.7 - 9.3.4 C-MOVE PROTOCOL, 9.3.4.2 C-MOVE-RSP
int status = rspCmd.getStatus();
switch (status) {
case 0x0000:
// log.info("Moved: " + prompt);
break;
case 0xB000:
log.error("One or more failures during move of " + prompt);
break;
default:
log.error("Failed to move " + prompt + "\n\terror tstatus: " + Integer.toHexString(status));
break;
}
System.out.println("The move sise is : " + datasetVector.size());
return datasetVector;
}
