public void OnElement_ValidData_AddsCorrectTypeToDataset(DicomTag tag, DicomVR vr, string data, Type expected)
{
var dataset = new DicomDataset();
var observer = new DicomDatasetReaderObserver(dataset);
var buffer = new MemoryByteBuffer(Encoding.ASCII.GetBytes(data));
observer.OnElement(null, tag, vr, buffer);
Assert.IsType(expected, dataset.First());
}
public void OnElement_ValidData_AddsCorrectTypeToDataset(DicomTag tag, DicomVR vr, string data, Type expected)
{
var dataset = new DicomDataset();
var observer = new DicomDatasetReaderObserver(dataset);
var buffer = new MemoryByteBuffer(Encoding.ASCII.GetBytes(data));
observer.OnElement(null, tag, vr, buffer);
Assert.IsType(expected, dataset.First());
}
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>
/// 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);
}
}
