/**
* Reads a DIMSE-C message.
*
* @param pdu the context pdu DICOMClientServer
* @param dco the incoming DICOM message
* @param ddo a place to store the incoming DICOM data object or null if not required
* @exception DICOM_Exception DOCUMENT ME!
*/
public void readCResponseAlias(
final DICOM_PDUService pdu, final DICOM_Object dco, final DICOM_Object ddo)
throws DICOM_Exception {
if (dco == null) {
throw new DICOM_Exception("null dco");
}
final int command = dco.getInt16(DICOM_RTC.DD_CommandField);
if (command != COMMAND) { // not correct command
throw new DICOM_Exception(
"DIMSE-C Request error: "
+ DICOM_Util.toHexString((short) command)
+ " looking for "
+ DICOM_Util.toHexString(COMMAND));
}
final int dstype = dco.getInt16(DICOM_RTC.DD_DataSetType);
if (dstype != DICOM_Constants.DSTYPE_NODATAPRESENT) {
// data is present
if (Preferences.debugLevel(Preferences.DEBUG_COMMS)) {
Preferences.debug("CRequest.readCResponseAlias DCO : Data is present" + "\n");
}
if (ddo == null) {
throw new DICOM_Exception("null ddo");
}
if (pdu == null) {
throw new DICOM_Exception("null pdu");
}
pdu.readInObject(ddo);
} else {
if (ddo != null) {
ddo.clear();
}
}
final int status = dco.getInt16(DICOM_RTC.DD_Status);
if (Preferences.debugLevel(Preferences.DEBUG_COMMS)) {
if (dco != null) {
Preferences.debug("CRequest.readCResponseAlias DCO : " + dco.toString("DCO") + "\n");
}
if (ddo != null) {
Preferences.debug("CRequest.readCResponseAlias DDO : " + ddo.toString("DDO") + "\n");
}
}
if ((status >= DICOM_Constants.STATUS_ERRORFIRST)
&& (status <= DICOM_Constants.STATUS_ERRORLAST)) {
String str1, errorComment;
str1 =
"Status error for command = "
+ DICOM_Constants.convertCommandToString(COMMAND)
+ // +DICOM_Util.toHexString(
// (short)
// COMMAND ) +
" status = ["
+ DICOM_Util.toHexString((short) status)
+ "] ";
errorComment = dco.getStr(DICOM_RTC.DD_ErrorComment); // + dco.getOffending Element;
// Preferences.debug("CRequest.readCResponseAlias DCO : " + dco.toString("DCO") + "\n");
// Preferences.debug("CRequest.readCResponseAlias DDO : " + ddo.toString("DDO") + "\n");
// System.out.println("DD_ErrorComment = " + errorComment);
if (errorComment != null) {
str1 = str1 + errorComment + "\n";
}
throw new DICOM_Exception(str1);
}
}
/**
* Writes a DIMSE-C message.
*
* @param pdu the context pdu DICOMClientServer
* @param transferSyntax transfer syntax.
* @param classUID the SOP Class UID.
* @param instanceUID DOCUMENT ME!
* @param ddo the outgoing DICOM data object (null if none required)
* @param AETitle byte array to store the destination Application Entity title for C-Moves
* @exception DICOM_Exception DOCUMENT ME!
*/
public void write(
final DICOM_PDUService pdu,
String transferSyntax,
final String classUID,
final String instanceUID,
final DICOM_Object ddo,
final byte[] AETitle)
throws DICOM_Exception {
if (Preferences.debugLevel(Preferences.DEBUG_COMMS)) {
Preferences.debug(DICOM_Util.timeStamper() + " CRequest.write: Start \n");
}
final DICOM_Object dcor = new DICOM_Object();
// these are filled in the order of the Part 7 Section 9.1.x charts...
dcor.setInt16(DICOM_RTC.DD_CommandField, COMMAND);
dcor.setInt16(DICOM_RTC.DD_MessageID, MSG_ID);
DICOM_Util.determineSOPClassUIDAndPush(classUID, null, ddo, dcor);
if ((COMMAND == DICOM_Constants.COMMAND_CStoreRQ) && (ddo != null)) {
dcor.setStr(DICOM_RTC.DD_AffectedSOPInstanceUID, instanceUID);
// copy Affected SOP Instance UID
} else if ((COMMAND == DICOM_Constants.COMMAND_CStoreRQ)) {
final String s = ddo.getStr(DICOM_RTC.DD_SOPInstanceUID);
if (s != null) {
dcor.setStr(DICOM_RTC.DD_AffectedSOPInstanceUID, s);
}
}
dcor.setInt16(
DICOM_RTC.DD_Priority,
DICOM_CRequest.MEDIUM); // See class definition for other priority codes
if (ddo != null) {
dcor.setInt16(DICOM_RTC.DD_DataSetType, DICOM_Constants.DSTYPE_DATAPRESENT);
} else {
dcor.setInt16(DICOM_RTC.DD_DataSetType, DICOM_Constants.DSTYPE_NODATAPRESENT);
}
if (COMMAND == DICOM_Constants.COMMAND_CMoveRQ) {
if (AETitle == null) {
throw new DICOM_Exception("AETitle = Null");
}
final byte[] serverAETitle = new byte[16];
DICOM_Util.fillByteArray(serverAETitle, ' ');
DICOM_Util.copyByteArray(serverAETitle, AETitle);
dcor.setStr(
DICOM_RTC.DD_MoveDestination,
DICOM_CRequest.fixMoveDestString(new String(serverAETitle)));
}
if (Preferences.debugLevel(Preferences.DEBUG_COMMS)) {
Preferences.debug(
DICOM_Util.timeStamper() + " CRequest.write DCO: " + dcor.toString("Command") + " \n");
}
pdu.write(dcor, classUID, (byte) 1); // 1 = Message command information
if (ddo != null) {
Preferences.debug(
DICOM_Util.timeStamper() + " CRequest.write DDO: " + ddo.toString("Data") + " \n");
transferSyntax = pdu.getTransferSyntaxID();
pdu.write(transferSyntax, ddo, classUID, (byte) 0);
}
}
/**
* Reads a DIMSE-C message.
*
* @param pdu the context pdu
* @param dco the incoming DICOM message
* @param ddo store the incoming DICOM data object in this object
* @exception DICOM_Exception DOCUMENT ME!
*/
public void read(final DICOM_PDUService pdu, final DICOM_Object dco, final DICOM_Object ddo)
throws DICOM_Exception {
if (Preferences.debugLevel(Preferences.DEBUG_COMMS)) {
Preferences.debug(DICOM_Util.timeStamper() + " CRequest.read: \n");
}
if (dco == null) {
if (Preferences.debugLevel(Preferences.DEBUG_COMMS)) {
Preferences.debug(DICOM_Util.timeStamper() + " CRequest.read: DCO is null \n");
}
throw new DICOM_Exception("DCO is null");
}
final int command = dco.getInt16(DICOM_RTC.DD_CommandField);
if (command != COMMAND) {
throw new DICOM_Exception(
" DIMSE-C Request error : "
+ DICOM_Util.toHexString((short) command)
+ " looking for "
+ DICOM_Util.toHexString(COMMAND));
}
final int dataSetType = dco.getInt16(DICOM_RTC.DD_DataSetType);
if (dataSetType != DICOM_Constants.DSTYPE_NODATAPRESENT) {
if (ddo == null) {
throw new DICOM_Exception("DICOM data object is null");
}
if (pdu == null) {
throw new DICOM_Exception("PDU is null");
}
pdu.readInObject(ddo);
} else {
if (ddo != null) {
ddo.clear();
} // Information is not present
}
final int status = dco.getInt16(DICOM_RTC.DD_Status);
if ((status >= DICOM_Constants.STATUS_ERRORFIRST)
&& (status <= DICOM_Constants.STATUS_ERRORLAST)) {
String str1, str2;
str1 =
"Status in error "
+ DICOM_Util.toHexString((short) COMMAND)
+ " ["
+ DICOM_Util.toHexString((short) status)
+ "] ";
str2 = dco.getStr(DICOM_RTC.DD_ErrorComment);
if (str2 != null) {
str1 = str1 + str2;
}
throw new DICOM_Exception(str1);
}
}