public void AddFile_AnonymizedSeries_AllFilesAddedToSameStudySeriesNode()
{
var dicomFiles = GetDicomFilesFromWebZip(
"https://www.creatis.insa-lyon.fr/~jpr/PUBLIC/gdcm/gdcmSampleData/Philips_Medical_Images/mr711-mr712/abd1.zip");
// Anonymize all files
var anonymizer = new DicomAnonymizer();
foreach (var dicomFile in dicomFiles)
{
anonymizer.AnonymizeInPlace(dicomFile);
}
// Create DICOM directory
var dicomDir = new DicomDirectory();
foreach (var dicomFile in dicomFiles)
{
dicomDir.AddFile(dicomFile);
}
var imageNodes = dicomDir.RootDirectoryRecord.LowerLevelDirectoryRecord.LowerLevelDirectoryRecord
.LowerLevelDirectoryRecordCollection;
Assert.Equal(dicomFiles.Count, imageNodes.Count());
}
/// <summary>
/// Asynchronously read DICOM Directory from stream.
/// </summary>
/// <param name="stream">Stream to read.</param>
/// <param name="fallbackEncoding">Encoding to apply if it cannot be identified from DICOM directory.</param>
/// <param name="stop">Stop criterion in dataset.</param>
/// <returns>Awaitable <see cref="DicomDirectory"/> instance.</returns>
public static new async Task <DicomDirectory> OpenAsync(Stream stream, Encoding fallbackEncoding, Func <ParseState, bool> stop = null)
{
if (fallbackEncoding == null)
{
throw new ArgumentNullException(nameof(fallbackEncoding));
}
var df = new DicomDirectory();
try
{
var source = new StreamByteSource(stream);
var reader = new DicomFileReader();
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
var result =
await
reader.ReadAsync(
source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(
new DicomDatasetReaderObserver(df.Dataset, fallbackEncoding),
dirObserver),
stop).ConfigureAwait(false);
return(FinalizeDicomDirectoryLoad(df, reader, dirObserver, result));
}
catch (Exception e)
{
throw new DicomFileException(df, e.Message, e);
}
}
private static void WriteMedia(string path)
{
var dirInfo = new DirectoryInfo(path);
var dicomDir = new DicomDirectory(false);
foreach (var file in dirInfo.GetFiles("*.*", SearchOption.AllDirectories))
{
if (!file.FullName.StartsWith(dirInfo.FullName))
{
throw new ArgumentException("file");
}
if (file.Name == "DICOMDIR")
{
continue;
}
try
{
dicomDir.AddFile(DicomFile.Open(file.FullName), file.FullName.Substring(dirInfo.FullName.Length).TrimStart(Path.DirectorySeparatorChar));
}
catch
{
}
}
if (dicomDir.RootDirectoryRecord != null)
{
dicomDir.Save(Path.Combine(path, "DICOMDIR"));
}
}
/// <summary>
/// Read DICOM Directory.
/// </summary>
/// <param name="fileName">File name.</param>
/// <param name="fallbackEncoding">Encoding to apply if it cannot be identified from DICOM directory.</param>
/// <param name="stop">Stop criterion in dataset.</param>
/// <returns><see cref="DicomDirectory"/> instance.</returns>
public static new DicomDirectory Open(string fileName, Encoding fallbackEncoding, Func <ParseState, bool> stop = null)
{
if (fallbackEncoding == null)
{
throw new ArgumentNullException(nameof(fallbackEncoding));
}
var df = new DicomDirectory();
try
{
df.File = IOManager.CreateFileReference(fileName);
using (var source = new FileByteSource(df.File))
{
var reader = new DicomFileReader();
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
var result = reader.Read(
source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(
new DicomDatasetReaderObserver(df.Dataset, fallbackEncoding),
dirObserver),
stop);
return(FinalizeDicomDirectoryLoad(df, reader, dirObserver, result));
}
}
catch (Exception e)
{
throw new DicomFileException(df, e.Message, e);
}
}
public void AddFile_AnonymizedSeries_AllFilesAddedToSameStudySeriesNode()
{
var dicomFiles = GetDicomFilesFromWebZip(
"https://www.creatis.insa-lyon.fr/~jpr/PUBLIC/gdcm/gdcmSampleData/Philips_Medical_Images/mr711-mr712/abd1.zip");
// Anonymize all files
var anonymizer = new DicomAnonymizer();
foreach (var dicomFile in dicomFiles)
{
anonymizer.AnonymizeInPlace(dicomFile);
}
// Create DICOM directory
var dicomDir = new DicomDirectory();
foreach (var dicomFile in dicomFiles)
{
var entry = dicomDir.AddFile(dicomFile);
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.SOPInstanceUID), entry.InstanceRecord.GetSingleValue <string>(DicomTag.ReferencedSOPInstanceUIDInFile));
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.SeriesInstanceUID), entry.SeriesRecord.GetSingleValue <string>(DicomTag.SeriesInstanceUID));
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.StudyInstanceUID), entry.StudyRecord.GetSingleValue <string>(DicomTag.StudyInstanceUID));
}
var imageNodes = dicomDir.RootDirectoryRecord.LowerLevelDirectoryRecord.LowerLevelDirectoryRecord
.LowerLevelDirectoryRecordCollection;
Assert.Equal(dicomFiles.Count, imageNodes.Count());
}
public new static IAsyncResult BeginOpen(string fileName, AsyncCallback callback, object state)
{
var df = new DicomDirectory();
// reset datasets
df.FileMetaInfo.Clear();
df.Dataset.Clear();
df.File = new FileReference(fileName);
FileByteSource source = new FileByteSource(df.File);
EventAsyncResult result = new EventAsyncResult(callback, state);
DicomFileReader reader = new DicomFileReader();
var datasetObserver = new DicomDatasetReaderObserver(df.Dataset);
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
reader.BeginRead(source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(datasetObserver, dirObserver),
OnReadComplete, new Tuple <DicomFileReader, DicomDirectory, DicomDirectoryReaderObserver, EventAsyncResult>(reader, df, dirObserver, result));
return(result);
}
public new static DicomDirectory Open(string fileName)
{
var df = new DicomDirectory();
// reset datasets
df.FileMetaInfo.Clear();
df.Dataset.Clear();
try {
df.File = new FileReference(fileName);
using (var source = new FileByteSource(df.File)) {
DicomFileReader reader = new DicomFileReader();
var datasetObserver = new DicomDatasetReaderObserver(df.Dataset);
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
reader.Read(source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(datasetObserver, dirObserver));
df.Format = reader.FileFormat;
df.Dataset.InternalTransferSyntax = reader.Syntax;
df._directoryRecordSequence = df.Dataset.Get <DicomSequence>(DicomTag.DirectoryRecordSequence);
df.RootDirectoryRecord = dirObserver.BuildDirectoryRecords();
return(df);
}
} catch (Exception e) {
throw new DicomFileException(df, e.Message, e);
}
}
public void AddFile_AnonymizedSeries_AllFilesAddedToSameStudySeriesNode()
{
var dicomFiles = GetDicomFilesFromZip(@".\Test Data\abd1.zip");
// Anonymize all files
var anonymizer = new DicomAnonymizer();
foreach (var dicomFile in dicomFiles)
{
anonymizer.AnonymizeInPlace(dicomFile);
}
// Create DICOM directory
var dicomDir = new DicomDirectory();
foreach (var dicomFile in dicomFiles)
{
var entry = dicomDir.AddFile(dicomFile);
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.SOPInstanceUID), entry.InstanceRecord.GetSingleValue <string>(DicomTag.ReferencedSOPInstanceUIDInFile));
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.SeriesInstanceUID), entry.SeriesRecord.GetSingleValue <string>(DicomTag.SeriesInstanceUID));
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.StudyInstanceUID), entry.StudyRecord.GetSingleValue <string>(DicomTag.StudyInstanceUID));
}
var imageNodes = dicomDir.RootDirectoryRecord.LowerLevelDirectoryRecord.LowerLevelDirectoryRecord
.LowerLevelDirectoryRecordCollection;
Assert.Equal(dicomFiles.Count, imageNodes.Count());
}
private static void ReadMedia(string fileName)
{
var dicomDirectory = DicomDirectory.Open(fileName);
foreach (var patientRecord in dicomDirectory.RootDirectoryRecordCollection)
{
Console.WriteLine(
"Patient: {0} ({1})",
patientRecord.Get <string>(DicomTag.PatientName),
patientRecord.Get <string>(DicomTag.PatientID));
foreach (var studyRecord in patientRecord.LowerLevelDirectoryRecordCollection)
{
Console.WriteLine("\tStudy: {0}", studyRecord.Get <string>(DicomTag.StudyInstanceUID));
foreach (var seriesRecord in studyRecord.LowerLevelDirectoryRecordCollection)
{
Console.WriteLine("\t\tSeries: {0}", seriesRecord.Get <string>(DicomTag.SeriesInstanceUID));
foreach (var imageRecord in seriesRecord.LowerLevelDirectoryRecordCollection)
{
Console.WriteLine(
"\t\t\tImage: {0} [{1}]",
imageRecord.Get <string>(DicomTag.ReferencedSOPInstanceUIDInFile),
imageRecord.Get <string>(Dicom.DicomTag.ReferencedFileID));
}
}
}
}
}
private static DicomDirectory FinalizeDicomDirectoryLoad(
DicomDirectory df,
DicomFileReader reader,
DicomDirectoryReaderObserver dirObserver,
DicomReaderResult result)
{
if (result == DicomReaderResult.Processing)
{
throw new DicomFileException(df, "Invalid read return state: {state}", result);
}
if (result == DicomReaderResult.Error)
{
return(null);
}
df.IsPartial = result == DicomReaderResult.Stopped || result == DicomReaderResult.Suspended;
df.Format = reader.FileFormat;
df.Dataset.InternalTransferSyntax = reader.Syntax;
df._directoryRecordSequence = df.Dataset.Get <DicomSequence>(DicomTag.DirectoryRecordSequence);
df.RootDirectoryRecord = dirObserver.BuildDirectoryRecords();
return(df);
}
public void AddFile_AnonymizedSeries_AllFilesAddedToDifferentPatientNodes()
{
var dicomFiles = GetDicomFilesFromZip(@".\Test Data\abd1.zip");
// Anonymize all files
var patname = "Pat^Name";
var patname2 = "Pat^^Name^^";
var patname3 = "PAT Name";
var patname4 = "Name^Pat";
var anonymizer = new DicomAnonymizer();
foreach (var dicomFile in dicomFiles)
{
anonymizer.AnonymizeInPlace(dicomFile);
dicomFile.Dataset.AddOrUpdate(DicomTag.PatientName, patname);
}
// the name of the first image is slightly different
dicomFiles.First().Dataset.AddOrUpdate(DicomTag.PatientName, patname2);
dicomFiles.ElementAt(1).Dataset.AddOrUpdate(DicomTag.PatientName, patname3);
dicomFiles.ElementAt(2).Dataset.AddOrUpdate(DicomTag.PatientName, patname4);
// Create DICOM directory
var dicomDir = new DicomDirectory();
foreach (var dicomFile in dicomFiles)
{
var entry = dicomDir.AddFile(dicomFile);
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.SOPInstanceUID), entry.InstanceRecord.GetSingleValue <string>(DicomTag.ReferencedSOPInstanceUIDInFile));
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.SeriesInstanceUID), entry.SeriesRecord.GetSingleValue <string>(DicomTag.SeriesInstanceUID));
Assert.Equal(dicomFile.Dataset.GetSingleValue <string>(DicomTag.StudyInstanceUID), entry.StudyRecord.GetSingleValue <string>(DicomTag.StudyInstanceUID));
}
// there shall be only one patient record
Assert.Equal(4, dicomDir.RootDirectoryRecordCollection.Count());
}
public async Task OpenAsync_DicomDirFile_Succeeds()
{
var dir = await DicomDirectory.OpenAsync(@".\Test Data\DICOMDIR");
var expected = DicomUID.MediaStorageDirectoryStorage.UID;
var actual = dir.FileMetaInfo.MediaStorageSOPClassUID.UID;
}
public void Open_DicomDirFile_Succeeds()
{
var dir = DicomDirectory.Open(@".\Test Data\DICOMDIR");
var expected = DicomUID.MediaStorageDirectoryStorage.UID;
var actual = dir.FileMetaInfo.MediaStorageSOPClassUID.UID;
}
public static IAsyncResult BeginOpen(
string fileName,
Encoding fallbackEncoding,
AsyncCallback callback,
object state)
{
return(AsyncFactory.ToBegin(DicomDirectory.OpenAsync(fileName, fallbackEncoding), callback, state));
}
public void Open_MediaStorageSOPInstanceUID_ShouldBeConsistent()
{
var dir = DicomDirectory.Open(@".\Test Data\DICOMDIR");
var expected = dir.FileMetaInfo.Get <DicomUID>(DicomTag.MediaStorageSOPInstanceUID).UID;
var actual = dir.MediaStorageSOPInstanceUID.UID;
Assert.Equal(expected, actual);
}
/// <summary>
/// Asynchronously read DICOM Directory.
/// </summary>
/// <param name="fileName">File name.</param>
/// <param name="fallbackEncoding">Encoding to apply if it cannot be identified from DICOM directory.</param>
/// <param name="stop">Stop criterion in dataset.</param>
/// <returns>Awaitable <see cref="DicomDirectory"/> instance.</returns>
public static new async Task <DicomDirectory> OpenAsync(string fileName, Encoding fallbackEncoding, Func <ParseState, bool> stop = null)
{
if (fallbackEncoding == null)
{
throw new ArgumentNullException("fallbackEncoding");
}
var df = new DicomDirectory();
// reset datasets
df.FileMetaInfo.Clear();
df.Dataset.Clear();
try
{
df.File = IOManager.CreateFileReference(fileName);
using (var source = new FileByteSource(df.File))
{
var reader = new DicomFileReader();
var datasetObserver = new DicomDatasetReaderObserver(df.Dataset, fallbackEncoding);
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
var result =
await
reader.ReadAsync(
source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(datasetObserver, dirObserver),
stop).ConfigureAwait(false);
if (result == DicomReaderResult.Processing)
{
throw new DicomFileException(df, "Invalid read return state: {state}", result);
}
if (result == DicomReaderResult.Error)
{
return(null);
}
df.IsPartial = result == DicomReaderResult.Stopped || result == DicomReaderResult.Suspended;
df.Format = reader.FileFormat;
df.Dataset.InternalTransferSyntax = reader.Syntax;
df._directoryRecordSequence = df.Dataset.Get <DicomSequence>(DicomTag.DirectoryRecordSequence);
df.RootDirectoryRecord = dirObserver.BuildDirectoryRecords();
return(df);
}
}
catch (Exception e)
{
throw new DicomFileException(df, e.Message, e);
}
}
public async Task OpenAsync_DicomDirStream_Succeeds()
{
using (var stream = File.OpenRead(@".\Test Data\DICOMDIR"))
{
DicomDirectory dir = await DicomDirectory.OpenAsync(stream);
var expected = DicomUID.MediaStorageDirectoryStorage.UID;
var actual = dir.FileMetaInfo.MediaStorageSOPClassUID.UID;
}
}
public void Open_DicomDirStream_Succeeds()
{
using (var stream = File.OpenRead(@".\Test Data\DICOMDIR"))
{
DicomDirectory dir = DicomDirectory.Open(stream);
var expected = DicomUID.MediaStorageDirectoryStorage.UID;
var actual = dir.FileMetaInfo.MediaStorageSOPClassUID.UID;
Assert.Equal(expected, actual);
}
}
public void AddFile_LongFilename()
{
string filename = "TestPattern_Palette_16.dcm";
var dicomFile = DicomFile.Open(@".\Test Data\" + filename);
var dicomDir = new DicomDirectory();
Assert.Throws <DicomValidationException>(()
=> dicomDir.AddFile(dicomFile, filename));
dicomDir.AutoValidate = false;
dicomDir.AddFile(dicomFile, filename);
Assert.Single(dicomDir.RootDirectoryRecordCollection);
}
private static void WriteMedia(string path) {
var dicomDirPath = Path.Combine(path, "DICOMDIR");
var dirInfo = new DirectoryInfo(path);
var dicomDir = new DicomDirectory();
foreach (var file in dirInfo.GetFiles("*.*", SearchOption.AllDirectories)) {
var dicomFile = Dicom.DicomFile.Open(file.FullName);
dicomDir.AddFile(dicomFile, String.Format(@"000001\{0}", file.Name));
}
dicomDir.Save(dicomDirPath);
}
public void AddFile_LongFilename_WithGlobalValidationSupression()
{
string filename = "TestPattern_Palette_16.dcm";
var dicomFile = DicomFile.Open(@".\Test Data\" + filename);
DicomValidation.AutoValidation = false;
var dicomDir = new DicomDirectory();
Assert.Null(Record.Exception(()
=> dicomDir.AddFile(dicomFile, filename)));
Assert.Single(dicomDir.RootDirectoryRecordCollection);
DicomValidation.AutoValidation = true;
}
private static void WriteMedia(string path)
{
var dicomDirPath = Path.Combine(path, "DICOMDIR");
var dirInfo = new DirectoryInfo(path);
var dicomDir = new DicomDirectory();
foreach (var file in dirInfo.GetFiles("*.*", SearchOption.AllDirectories))
{
var dicomFile = Dicom.DicomFile.Open(file.FullName);
dicomDir.AddFile(dicomFile, String.Format(@"000001\{0}", file.Name));
}
dicomDir.Save(dicomDirPath);
}
public void AddFile_InvalidUIDInExistingFileShouldNotThrow()
{
// first create a file with invalid UIDs
string filename = "TestPattern_Palette_16.dcm";
var dicomFile = DicomFile.Open(@".\Test Data\" + filename);
var invalidDs = dicomFile.Dataset.NotValidated();
invalidDs.AddOrUpdate(DicomTag.SOPInstanceUID, "1.2.4.100000.94849.4239.32.00121");
invalidDs.AddOrUpdate(DicomTag.SeriesInstanceUID, "1.2.4.100000.94849.4239.32.00122");
invalidDs.AddOrUpdate(DicomTag.StudyInstanceUID, "1.2.4.100000.94849.4239.32.00123");
var invalidFile = new DicomFile(invalidDs);
var ex = Record.Exception(() =>
{
var dicomDir = new DicomDirectory();
dicomDir.AddFile(invalidFile, "FILE1");
});
Assert.Null(ex);
}
private static void WriteMedia(string path)
{
var dirInfo = new DirectoryInfo(path);
var dicomDir = new DicomDirectory(false);
foreach (var file in dirInfo.GetFiles("*.*", SearchOption.AllDirectories))
{
if (!file.FullName.StartsWith(dirInfo.FullName))
throw new ArgumentException("file");
if (file.Name == "DICOMDIR")
continue;
try
{
dicomDir.AddFile(DicomFile.Open(file.FullName), file.FullName.Substring(dirInfo.FullName.Length).TrimStart(Path.DirectorySeparatorChar));
}
catch
{
}
}
if (dicomDir.RootDirectoryRecord != null)
dicomDir.Save(Path.Combine(path, "DICOMDIR"));
}
public string DownloadDicomFile(int[] frameIdArray, string guid)
{
int count = (from dfr in ObjectContext.DicomFrame where frameIdArray.Contains(dfr.FrameId) select dfr.FileId).Distinct().Count();
if (count == 1) // DICOM File
{
CreateDicomFile(frameIdArray, guid, guid);
return guid + ".dcm";
}
else // DICOMDIR File
{
int[] fileIdArray = (from dfr in ObjectContext.DicomFrame where frameIdArray.Contains(dfr.FrameId) select dfr.FileId).Distinct().ToArray();
foreach (var fileId in fileIdArray)
{
int[] frameIdForFileArray = (from dfr in ObjectContext.DicomFrame where dfr.FileId == fileId && frameIdArray.Contains(dfr.FrameId) select dfr.FrameId).ToArray();
string fileName = (from df in ObjectContext.DicomFile where df.FileId == fileId select df.FileId).First().ToString(CultureInfo.InvariantCulture);
CreateDicomFile(frameIdForFileArray, guid, fileName);
}
string dirPath = HttpRuntime.AppDomainAppPath + @"\temp\" + guid;
string dicomDirPath = Path.Combine(dirPath, "DICOMDIR");
var dirInfo = new DirectoryInfo(dirPath);
var dicomDir = new DicomDirectory();
foreach (var file in dirInfo.GetFiles("*.dcm"))
{
var dicomFile = Dicom.DicomFile.Open(file.FullName);
dicomDir.AddFile(dicomFile, String.Format(@".\{0}", file.Name));
}
dicomDir.Save(dicomDirPath);
var files = dirInfo.GetFiles();
var binaryFormatter = new BinaryFormatter();
var fileStream = new FileStream(dirPath + @"\" + guid + ".dcmdir", FileMode.Create, FileAccess.Write, FileShare.None);
foreach (var file in files)
{
var dicomSerializableFile = new DicomSerializableFile(file.Name, File.ReadAllBytes(file.FullName));
binaryFormatter.Serialize(fileStream, dicomSerializableFile);
}
fileStream.Close();
return guid + ".dcmdir";
}
}
/// <summary>
/// Asynchronously read DICOM Directory.
/// </summary>
/// <param name="fileName">File name.</param>
/// <param name="fallbackEncoding">Encoding to apply if it cannot be identified from DICOM directory.</param>
/// <param name="stop">Stop criterion in dataset.</param>
/// <returns>Awaitable <see cref="DicomDirectory"/> instance.</returns>
public static new async Task<DicomDirectory> OpenAsync(string fileName, Encoding fallbackEncoding, Func<ParseState, bool> stop = null)
{
if (fallbackEncoding == null)
{
throw new ArgumentNullException("fallbackEncoding");
}
var df = new DicomDirectory();
// reset datasets
df.FileMetaInfo.Clear();
df.Dataset.Clear();
try
{
df.File = IOManager.CreateFileReference(fileName);
using (var source = new FileByteSource(df.File))
{
var reader = new DicomFileReader();
var datasetObserver = new DicomDatasetReaderObserver(df.Dataset, fallbackEncoding);
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
var result =
await
reader.ReadAsync(
source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(datasetObserver, dirObserver),
stop).ConfigureAwait(false);
if (result == DicomReaderResult.Processing)
{
throw new DicomFileException(df, "Invalid read return state: {state}", result);
}
if (result == DicomReaderResult.Error)
{
return null;
}
df.IsPartial = result == DicomReaderResult.Stopped || result == DicomReaderResult.Suspended;
df.Format = reader.FileFormat;
df.Dataset.InternalTransferSyntax = reader.Syntax;
df._directoryRecordSequence = df.Dataset.Get<DicomSequence>(DicomTag.DirectoryRecordSequence);
df.RootDirectoryRecord = dirObserver.BuildDirectoryRecords();
return df;
}
}
catch (Exception e)
{
throw new DicomFileException(df, e.Message, e);
}
}
public new static IAsyncResult BeginOpen(string fileName, AsyncCallback callback, object state) {
var df = new DicomDirectory();
// reset datasets
df.FileMetaInfo.Clear();
df.Dataset.Clear();
df.File = new FileReference(fileName);
FileByteSource source = new FileByteSource(df.File);
EventAsyncResult result = new EventAsyncResult(callback, state);
DicomFileReader reader = new DicomFileReader();
var datasetObserver = new DicomDatasetReaderObserver(df.Dataset);
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
reader.BeginRead(source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(datasetObserver, dirObserver),
OnReadComplete, new Tuple<DicomFileReader, DicomDirectory, DicomDirectoryReaderObserver, EventAsyncResult>(reader, df, dirObserver, result));
return result;
}
public new static DicomDirectory Open(string fileName) {
var df = new DicomDirectory();
// reset datasets
df.FileMetaInfo.Clear();
df.Dataset.Clear();
try {
df.File = new FileReference(fileName);
using (var source = new FileByteSource(df.File)) {
DicomFileReader reader = new DicomFileReader();
var datasetObserver = new DicomDatasetReaderObserver(df.Dataset);
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
reader.Read(source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(datasetObserver, dirObserver));
df.Format = reader.FileFormat;
df.Dataset.InternalTransferSyntax = reader.Syntax;
df._directoryRecordSequence = df.Dataset.Get<DicomSequence>(DicomTag.DirectoryRecordSequence);
df.RootDirectoryRecord = dirObserver.BuildDirectoryRecords();
return df;
}
} catch (Exception e) {
throw new DicomFileException(df, e.Message, e);
}
}
/// <summary>
/// Read DICOM Directory.
/// </summary>
/// <param name="fileName">File name.</param>
/// <param name="fallbackEncoding">Encoding to apply if it cannot be identified from DICOM directory.</param>
/// <param name="stop">Stop criterion in dataset.</param>
/// <returns><see cref="DicomDirectory"/> instance.</returns>
public static new DicomDirectory Open(string fileName, Encoding fallbackEncoding, Func<ParseState, bool> stop = null)
{
if (fallbackEncoding == null)
{
throw new ArgumentNullException(nameof(fallbackEncoding));
}
var df = new DicomDirectory();
try
{
df.File = IOManager.CreateFileReference(fileName);
using (var source = new FileByteSource(df.File))
{
var reader = new DicomFileReader();
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
var result = reader.Read(
source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(
new DicomDatasetReaderObserver(df.Dataset, fallbackEncoding),
dirObserver),
stop);
return FinalizeDicomDirectoryLoad(df, reader, dirObserver, result);
}
}
catch (Exception e)
{
throw new DicomFileException(df, e.Message, e);
}
}
/// <summary>
/// Asynchronously read DICOM Directory from stream.
/// </summary>
/// <param name="stream">Stream to read.</param>
/// <param name="fallbackEncoding">Encoding to apply if it cannot be identified from DICOM directory.</param>
/// <param name="stop">Stop criterion in dataset.</param>
/// <returns>Awaitable <see cref="DicomDirectory"/> instance.</returns>
public static new async Task<DicomDirectory> OpenAsync(Stream stream, Encoding fallbackEncoding, Func<ParseState, bool> stop = null)
{
if (fallbackEncoding == null)
{
throw new ArgumentNullException(nameof(fallbackEncoding));
}
var df = new DicomDirectory();
try
{
var source = new StreamByteSource(stream);
var reader = new DicomFileReader();
var dirObserver = new DicomDirectoryReaderObserver(df.Dataset);
var result =
await
reader.ReadAsync(
source,
new DicomDatasetReaderObserver(df.FileMetaInfo),
new DicomReaderMultiObserver(
new DicomDatasetReaderObserver(df.Dataset, fallbackEncoding),
dirObserver),
stop).ConfigureAwait(false);
return FinalizeDicomDirectoryLoad(df, reader, dirObserver, result);
}
catch (Exception e)
{
throw new DicomFileException(df, e.Message, e);
}
}
private static DicomDirectory FinalizeDicomDirectoryLoad(
DicomDirectory df,
DicomFileReader reader,
DicomDirectoryReaderObserver dirObserver,
DicomReaderResult result)
{
if (result == DicomReaderResult.Processing)
{
throw new DicomFileException(df, "Invalid read return state: {state}", result);
}
if (result == DicomReaderResult.Error)
{
return null;
}
df.IsPartial = result == DicomReaderResult.Stopped || result == DicomReaderResult.Suspended;
df.Format = reader.FileFormat;
df.Dataset.InternalTransferSyntax = reader.Syntax;
df._directoryRecordSequence = df.Dataset.Get<DicomSequence>(DicomTag.DirectoryRecordSequence);
df.RootDirectoryRecord = dirObserver.BuildDirectoryRecords();
return df;
}