protected virtual void Dispose(bool disposing)
{
if (disposing)
{
SaveHeader();
dset?.Dispose();
var info = Hdf5.GroupInfo(_groupId);
_groupId = Hdf5.CloseGroup(_groupId);
fileId = Hdf5.CloseFile(fileId);
}
}
public void Dispose()
{
_header.Recording.EndTime = _header.Recording.StartTime + TimeSpan.FromSeconds(_sampleCount / _header.Recording.SampleRate);
Header.Recording.NrOfSamples = _sampleCount;
Header.EventListToEvents();
for (int i = 0; i < Header.Channels.Count(); i++)
{
Header.Channels[i].NrOfSamples = _sampleCount;
}
Hdf5.WriteObject(_groupId, _header);
fileId = Hdf5.CloseFile(fileId);
}
// private readonly ReaderWriterLockSlim lock_ = new ReaderWriterLockSlim();
public Hdf5AcquisitionFileWriter(string filename, string groupName = "ROOT")
{
H5E.set_auto(H5E.DEFAULT, null, IntPtr.Zero);
//lock_.EnterWriteLock();
_filename = filename;
fileId = Hdf5.CreateFile(filename);
_groupName = groupName;
_groupId = Hdf5.CreateGroup(fileId, _groupName);
Header = new Hdf5AcquisitionFile();
_nrOfRecords = 0;
_sampleCount = 0;
//lock_.ExitWriteLock();
}
public void SaveHeader()
{
//lock_.EnterWriteLock();
Trace.WriteLine($"saving file {Header.Patient.Name} samples: {_sampleCount}; fileId: {fileId}");
Header.Recording.EndTime = Header.Recording.StartTime + TimeSpan.FromSeconds(_sampleCount / Header.Recording.SampleRate);
Header.Recording.NrOfSamples = _sampleCount;
Header.EventListToEvents();
for (int i = 0; i < Header.Channels.Count(); i++)
{
Header.Channels[i].NrOfSamples = _sampleCount;
}
Trace.WriteLine($"writing file {Header.Patient.Name} groupId: {_groupId}; fileId: {fileId}");
Hdf5.WriteObject(_groupId, Header);
//lock_.ExitWriteLock();
}
private static long create_type(Type t)
{
var size = Marshal.SizeOf(t);
var float_size = Marshal.SizeOf(typeof(float));
var int_size = Marshal.SizeOf(typeof(int));
var typeId = H5T.create(H5T.class_t.COMPOUND, new IntPtr(size));
var compoundInfo = Hdf5.GetCompoundInfo(t);
foreach (var cmp in compoundInfo)
{
//Console.WriteLine(string.Format("{0} {1}", cmp.name, cmp.datatype));
H5T.insert(typeId, cmp.name, Marshal.OffsetOf(t, cmp.name), cmp.datatype);
}
return(typeId);
}
///
private static int calcCompoundSize(Type type, bool useIEEE, ref hid_t id)
{
// Create the compound datatype for the file. Because the standard
// types we are using for the file may have different sizes than
// the corresponding native types
var compoundInfo = Hdf5.GetCompoundInfo(type, useIEEE);
var curCompound = compoundInfo.Last();
var compoundSize = curCompound.offset + curCompound.size;
//Create the compound datatype for memory.
id = H5T.create(H5T.class_t.COMPOUND, new IntPtr(compoundSize));
foreach (var cmp in compoundInfo)
{
H5T.insert(id, cmp.name, new IntPtr(cmp.offset), cmp.datatype);
}
return(compoundSize);
}
private static long CreateType(Type t)
{
var size = Marshal.SizeOf(t);
var float_size = Marshal.SizeOf(typeof(float));
var int_size = Marshal.SizeOf(typeof(int));
var typeId = H5T.create(H5T.class_t.COMPOUND, new IntPtr(size));
var compoundInfo = Hdf5.GetCompoundInfo(t);
foreach (var cmp in compoundInfo)
{
//Console.WriteLine(string.Format("{0} {1}", cmp.name, cmp.datatype));
// Lines below don't produce an error message but hdfview can't read compounds properly
//var typeLong = GetDatatype(cmp.type);
//H5T.insert(typeId, cmp.name, Marshal.OffsetOf(t, cmp.name), typeLong);
H5T.insert(typeId, cmp.name, Marshal.OffsetOf(t, cmp.name), cmp.datatype);
}
return(typeId);
}
public static T ReadObject <T>(hid_t groupId, T readValue, string groupName)
{
if (readValue == null)
{
throw new ArgumentNullException(nameof(readValue));
}
bool isGroupName = !string.IsNullOrWhiteSpace(groupName);
if (isGroupName)
{
groupId = H5G.open(groupId, groupName);
}
Type tyObject = readValue.GetType();
foreach (Attribute attr in Attribute.GetCustomAttributes(tyObject))
{
if (attr is Hdf5GroupName)
{
groupName = (attr as Hdf5GroupName).Name;
}
if (attr is Hdf5SaveAttribute)
{
Hdf5SaveAttribute atLeg = attr as Hdf5SaveAttribute;
if (atLeg.SaveKind == Hdf5Save.DoNotSave)
{
return(readValue);
}
}
}
ReadFields(tyObject, readValue, groupId);
ReadProperties(tyObject, readValue, groupId);
if (isGroupName)
{
Hdf5.CloseGroup(groupId);
}
return(readValue);
}
/// <summary>
/// Writes data to the hdf5 file.
/// </summary>
public void Write(IList <double[]> signals)
{
int cols = signals.Count();
if (cols == 0)
{
return;
}
int rows = signals[0].Length;
if (rows == 0)
{
return;
}
double sr = _header.Recording.SampleRate;
var data = new short[rows, cols];
//var byteLength = rows * sizeof(short);
for (int i = 0; i < cols; i++)
{
var sig = signals[i];
for (int j = 0; j < rows; j++)
{
data[j, i] = convert2Short(sig[j], i);
}
}
var dataName = string.Concat("/", _groupName, "/Data");
if (_nrOfRecords == 0)
{
_header.Recording.StartTime = DateTime.Now;
Hdf5.CreateGroup(fileId, _groupName);
dset = new ChunkedDataset <short>(dataName, fileId, data);
}
else
{
dset.AppendDataset(data);
}
_nrOfRecords++;
}
/// <summary>
/// Initializes a new instance of the <see cref="Hdf5AcquisitionFileReader"/> class.
/// </summary>
/// <param name="filename">A filename.</param>
/// <param name="groupName">a root group. If not specified used "ROOT</param>
public Hdf5AcquisitionFileReader(string filename, string[] labels = null, string groupName = "ROOT")
{
fileId = Hdf5.OpenFile(filename, readOnly: true);
_header = Hdf5.ReadObject <Hdf5AcquisitionFile>(fileId, groupName);
_groupName = groupName;
_usedChannels = new Dictionary <string, short>();
for (short i = 0; i < _header.Recording.NrOfChannels; i++)
{
_usedChannels.Add(_header.Channels[i].Label, i);
}
if (labels == null)
{
_labels = _header.Channels.Select(c => c.Label).ToList();
}
else
{
_labels = labels;
}
_readChannelCnt = _labels.Count;
_signals = new List <short[]>(_readChannelCnt);
}
public static object WriteObject(hid_t groupId, object writeValue, string groupName = null)
{
if (writeValue == null)
{
throw new ArgumentNullException(nameof(writeValue));
}
bool createGroupName = !string.IsNullOrWhiteSpace(groupName);
if (createGroupName)
{
groupId = Hdf5.CreateGroup(groupId, groupName);
}
Type tyObject = writeValue.GetType();
foreach (Attribute attr in Attribute.GetCustomAttributes(tyObject))
{
Hdf5SaveAttribute legAt = attr as Hdf5SaveAttribute;
if (legAt != null)
{
Hdf5Save kind = legAt.SaveKind;
if (kind == Hdf5Save.DoNotSave)
{
return(writeValue);
}
}
}
WriteProperties(tyObject, writeValue, groupId);
WriteFields(tyObject, writeValue, groupId);
WriteHdf5Attributes(tyObject, groupId, groupName);
if (createGroupName)
{
Hdf5.CloseGroup(groupId);
}
return(writeValue);
}
protected virtual void Dispose(bool disposing)
{
Trace.WriteLine($"saving file {Header.Patient.Name} samples: {_sampleCount}; fileId: {fileId}");
Header.Recording.EndTime = Header.Recording.StartTime + TimeSpan.FromSeconds(_sampleCount / Header.Recording.SampleRate);
Header.Recording.NrOfSamples = _sampleCount;
Header.EventListToEvents();
for (int i = 0; i < Header.Channels.Count(); i++)
{
Header.Channels[i].NrOfSamples = _sampleCount;
}
Trace.WriteLine($"writing file {Header.Patient.Name} groupId: {_groupId}; fileId: {fileId}");
Hdf5.WriteObject(_groupId, Header);
if (disposing)
{
if (dset != null)
{
dset.Dispose();
}
var info = Hdf5.GroupInfo(_groupId);
_groupId = Hdf5.CloseGroup(_groupId);
fileId = Hdf5.CloseFile(fileId);
}
}
public void WriteFromArray <T>(hid_t groupId, string name, Array dset, string datasetName = null)
{
Hdf5.WriteDatasetFromArray <T>(groupId, name, dset, datasetName);
}
public Array ReadStucts <T>(hid_t groupId, string name) where T : struct
{
return(Hdf5.ReadCompounds <T>(groupId, name).ToArray());
}
public Array ReadToArray <T>(hid_t groupId, string name)
{
return(Hdf5.ReadPrimitiveAttributes <T>(groupId, name));
}
public void Dispose()
{
_header.Recording.EndTime = _header.Recording.StartTime + TimeSpan.FromSeconds(_sampleCount / _header.Recording.SampleRate);
Hdf5.WriteObject(fileId, _header, _groupName);
fileId = Hdf5.CloseFile(fileId);
}
public void WriteFromArray <T>(hid_t groupId, string name, Array dset, string datasetName = null)
{
Hdf5.WritePrimitiveAttribute <T>(groupId, name, dset, datasetName);
}
public void WriteStrings(hid_t groupId, string name, IEnumerable <string> collection, string datasetName = null)
{
Hdf5.WriteStringAttributes(groupId, name, (string[])collection, datasetName);
}
public IEnumerable <string> ReadStrings(hid_t groupId, string name)
{
return(Hdf5.ReadStringAttributes(groupId, name));
}
public void WriteStucts <T>(hid_t groupId, string name, IEnumerable <T> dset, string datasetName = null)
{
Hdf5.WriteCompounds <T>(groupId, name, dset);
}
public void WriteArray(hid_t groupId, string name, Array collection, string datasetName = null)
{
Type type = collection.GetType();
Type elementType = type.GetElementType();
TypeCode typeCode = Type.GetTypeCode(elementType);
//Boolean isStruct = type.IsValueType && !type.IsEnum;
switch (typeCode)
{
case TypeCode.Boolean:
var bls = collection.ConvertArray <Boolean, UInt16>(bl => Convert.ToUInt16(bl));
rw.WriteFromArray <UInt16>(groupId, name, bls, datasetName);
Hdf5.WriteStringAttribute(groupId, name, "Boolean", name);
break;
case TypeCode.Byte:
rw.WriteFromArray <Byte>(groupId, name, collection, datasetName);
Hdf5.WriteStringAttribute(groupId, name, "Byte", name);
break;
case TypeCode.Char:
var chrs = collection.ConvertArray <Char, UInt16>(c => Convert.ToUInt16(c));
rw.WriteFromArray <UInt16>(groupId, name, chrs, datasetName);
Hdf5.WriteStringAttribute(groupId, name, "Char", name);
break;
case TypeCode.DateTime:
var dts = collection.ConvertArray <DateTime, long>(dt => dt.Ticks);
rw.WriteFromArray <long>(groupId, name, dts, datasetName);
Hdf5.WriteStringAttribute(groupId, name, "DateTime", name);
break;
case TypeCode.Decimal:
var decs = collection.ConvertArray <decimal, double>(dc => Convert.ToDouble(dc));
rw.WriteFromArray <double>(groupId, name, decs, datasetName);
Hdf5.WriteStringAttribute(groupId, name, "Decimal", name);
break;
case TypeCode.Double:
rw.WriteFromArray <double>(groupId, name, collection, datasetName);
break;
case TypeCode.Int16:
rw.WriteFromArray <short>(groupId, name, collection, datasetName);
break;
case TypeCode.Int32:
rw.WriteFromArray <Int32>(groupId, name, collection, datasetName);
break;
case TypeCode.Int64:
rw.WriteFromArray <Int64>(groupId, name, collection, datasetName);
break;
case TypeCode.SByte:
rw.WriteFromArray <SByte>(groupId, name, collection, datasetName);
Hdf5.WriteStringAttribute(groupId, name, "SByte", name);
break;
case TypeCode.Single:
rw.WriteFromArray <Single>(groupId, name, collection, datasetName);
break;
case TypeCode.UInt16:
rw.WriteFromArray <UInt16>(groupId, name, collection, datasetName);
break;
case TypeCode.UInt32:
rw.WriteFromArray <UInt32>(groupId, name, collection, datasetName);
break;
case TypeCode.UInt64:
rw.WriteFromArray <UInt64>(groupId, name, collection, datasetName);
break;
case TypeCode.String:
if (collection.Rank > 1 && collection.GetLength(1) > 1)
{
throw new Exception("Only 1 dimensional string arrays allowed: " + name);
}
rw.WriteStrings(groupId, name, (string[])collection, datasetName);
break;
default:
if (elementType == typeof(TimeSpan))
{
var tss = collection.ConvertArray <TimeSpan, long>(dt => dt.Ticks);
rw.WriteFromArray <Int64>(groupId, name, tss, datasetName);
Hdf5.WriteStringAttribute(groupId, name, "TimeSpan", name);
}
//else if (isStruct) {
// rw.WriteStucts(groupId, name, collection);
//}
else
{
string str = "type is not supported: ";
throw new NotSupportedException(str + elementType.FullName);
}
break;
}
//WriteHdf5Attributes(type, groupId, name, name);
}
public Array ReadToArray <T>(hid_t groupId, string name)
{
return(Hdf5.ReadDatasetToArray <T>(groupId, name));
}
public void Dispose()
{
fileId = Hdf5.CloseFile(fileId);
}