private Dictionary <DicomTag, HashSet <string> > ExtractValues(List <DicomTag> dicomTagsToExtract, IReadOnlyList <string> files)
{
Guard.Against.Null(dicomTagsToExtract, nameof(dicomTagsToExtract));
Guard.Against.Null(files, nameof(files));
var bags = new Dictionary <DicomTag, HashSet <string> >();
foreach (var dicomTag in dicomTagsToExtract)
{
if (!bags.ContainsKey(dicomTag))
{
bags.Add(dicomTag, new HashSet <string>());
}
}
foreach (var file in files)
{
DicomFile dicomFile = null;
try
{
if (!_dicomToolkit.HasValidHeader(file))
{
continue;
}
dicomFile = _dicomToolkit.Open(file);
}
catch (Exception ex)
{
_logger.Log(LogLevel.Debug, ex, $"Error opening file {file}.");
continue;
}
foreach (var dicomTag in dicomTagsToExtract)
{
try
{
if (_dicomToolkit.TryGetString(dicomFile, dicomTag, out var value) &&
!string.IsNullOrWhiteSpace(value))
{
bags[dicomTag].Add(value.Substring(0, Math.Min(value.Length, VALUE_LENGTH_LIMIT)));
}
}
catch (Exception ex)
{
_logger.Log(LogLevel.Error, ex, $"Error extracting metadata from file {file}, DICOM tag {dicomTag}.");
}
}
}
return(bags);
}
public override void HandleInstance(InstanceStorageInfo value)
{
if (value is null)
{
throw new ArgumentNullException(nameof(value));
}
;
if (!value.CalledAeTitle.Equals(_configuration.AeTitle))
{
throw new InstanceNotSupportedException(value);
}
;
if (!_dicomToolkit.TryGetString(value.InstanceStorageFullPath, _grouping, out string key) ||
string.IsNullOrWhiteSpace(key))
{
_logger.Log(LogLevel.Error, "Instance missing required DICOM key for grouping by {0}, ignoring", _grouping.ToString());
return;
}
InstanceCollection collection = null;
lock (SyncRoot)
{
if (_instances.TryGetValue(key, out InstanceCollection val))
{
collection = val;
}
else
{
collection = new InstanceCollection(key);
_instances.Add(key, collection);
_logger.Log(LogLevel.Debug, "New collection created for {0}", key);
}
collection.AddInstance(value);
}
_logger.Log(LogLevel.Debug, "Instance received and added with key {0}", key);
}
