How to use

getStreamPosition

method

in

org.dcm4che2.io.DicomOutputStream

private void writeRecord(long offset, DicomObject dcmobj)
  throws IOException {
log.debug("Write record @ {} to file {}", new Long(offset), file);
if (rollbackLen == -1) {
  rollbackLen = offset;
  filesetInfo.setFileSetConsistencyFlag(
    FileSetInformation.KNOWN_INCONSISTENCIES);
  raf.seek(firstRecordPos - 14);
  raf.writeShort(FileSetInformation.KNOWN_INCONSISTENCIES);
}
raf.seek(offset);
out.setStreamPosition(offset);
dcmobj.putInt(Tag.OffsetOfTheNextDirectoryRecord, VR.UL, 0);
dcmobj.putInt(Tag.RecordInUseFlag, VR.US, INUSE);
dcmobj.putInt(Tag.OffsetOfReferencedLowerLevelDirectoryEntity, VR.UL, 0);
out.writeItem(dcmobj, in.getTransferSyntax());
recordSeqLen = (int) (out.getStreamPosition() - firstRecordPos);
cache.put((int) dcmobj.getItemOffset(), dcmobj);
}

public DicomDirWriter(File file, FileSetInformation fileSetInfo)
throws IOException {
super(new RandomAccessFile(file, "rw"), fileSetInfo);
this.file = file;
// ensure fileSetInfo represents empty file-set 
fileSetInfo.setOffsetFirstRootRecord(0);
fileSetInfo.setOffsetLastRootRecord(0);
raf.setLength(0);
out = new DicomOutputStream(raf);
out.setExplicitSequenceLength(true);
out.setExplicitItemLength(true);
out.writeDicomFile(fileSetInfo.getDicomObject());
out.writeHeader(Tag.DirectoryRecordSequence, VR.SQ, 0);
this.firstRecordPos = (int) out.getStreamPosition();
this.recordSeqLen = 0;
}