private static long GetId(long parentId, string name, long dataType, long spaceId, Hdf5ElementType type)
{
string normalizedName = NormalizedName(name);
bool exists = ItemExists(parentId, normalizedName, type);
if (exists)
{
LogMessage($"{normalizedName} already exists", Hdf5LogLevel.Debug);
if (!Hdf5.Settings.OverrideExistingData)
{
if (Hdf5.Settings.ThrowOnError)
{
throw new Hdf5Exception($"{normalizedName} already exists");
}
return(-1);
}
}
var datasetId = -1L;
switch (type)
{
case Hdf5ElementType.Unknown:
break;
case Hdf5ElementType.Group:
case Hdf5ElementType.Dataset:
if (exists)
{
H5L.delete(parentId, normalizedName);
// datasetId = H5D.open(parentId, normalizedName);
}
datasetId = H5D.create(parentId, normalizedName, dataType, spaceId);
break;
case Hdf5ElementType.Attribute:
if (exists)
{
H5A.delete(parentId, normalizedName);
}
datasetId = H5A.create(parentId, normalizedName, dataType, spaceId);
break;
default:
throw new ArgumentOutOfRangeException(nameof(type), type, null);
}
if (datasetId == -1L)
{
string error = $"Unable to create dataset for {normalizedName}";
LogMessage($"{normalizedName} already exists", Hdf5LogLevel.Error);
if (Hdf5.Settings.ThrowOnError)
{
throw new Hdf5Exception(error);
}
}
return(datasetId);
}
public void H5AdeleteTest1()
{
hid_t att = H5A.create(m_v0_class_file, "DNA", H5T.IEEE_F32BE,
m_space_null);
Assert.IsTrue(att >= 0);
Assert.IsTrue(H5A.close(att) >= 0);
att = H5A.create(m_v2_class_file, "DNA", H5T.IEEE_F32BE,
m_space_null);
Assert.IsTrue(att >= 0);
Assert.IsTrue(H5A.close(att) >= 0);
att = H5A.create(m_v0_class_file, "DSA", H5T.IEEE_F32BE,
m_space_scalar);
Assert.IsTrue(att >= 0);
Assert.IsTrue(H5A.close(att) >= 0);
att = H5A.create(m_v2_class_file, "DSA", H5T.IEEE_F32BE,
m_space_scalar);
Assert.IsTrue(att >= 0);
Assert.IsTrue(H5A.close(att) >= 0);
Assert.IsTrue(H5A.delete(m_v0_class_file, "DNA") >= 0);
Assert.IsTrue(H5A.delete(m_v0_class_file, "DSA") >= 0);
Assert.IsTrue(H5A.delete(m_v2_class_file, "DNA") >= 0);
Assert.IsTrue(H5A.delete(m_v2_class_file, "DSA") >= 0);
}
/// <summary>
/// Deletes the attribute from the file.
/// Assumes that parent object is already open
/// </summary>
/// <param name="_objectId"></param>
/// <param name="_title"></param>
public static void DeleteAttribute(Hdf5Identifier _objectId, string _title)
{
int result = H5A.delete(_objectId.Value, _title);
}
/// <summary>
/// Prepares an attribute. The following use cases exist:
/// InitializeAttribute = False: no data is written
/// InitializeAttribute = True and DimensionLimitSet < H5S.Unlimited: overwrite attribute data
/// InitializeAttribute = True and DimensionLimitSet = H5S.Unlimited: merge attribute data
/// </summary>
/// <typeparam name="T">The data type of the attribute to be created.</typeparam>
/// <param name="locationId">The location ID.</param>
/// <param name="name">The name of the attribute.</param>
/// <param name="valueSet">The values to be written to the attribute.</param>
/// <param name="dimensionLimitSet">The maximum dimensions of the attribute.</param>
/// <param name="initializeAttribute">A boolean which indicates if the attribute data shall be untouched, overwritten or merged.</param>
/// <param name="callerMemberName">The name of the calling function.</param>
public static void PrepareAttribute <T>(long locationId, string name, T[] valueSet, ulong[] dimensionLimitSet, bool initializeAttribute, [CallerMemberName()] string callerMemberName = "")
{
Contract.Requires(valueSet != null, nameof(valueSet));
long fileId = -1;
long typeId = -1;
long attributeId = -1;
ulong[] dimensionSet;
bool isNew;
Type elementType;
dimensionSet = new ulong[] { 0 };
elementType = typeof(T);
try
{
fileId = H5I.get_file_id(locationId);
// create attribute
typeId = TypeConversionHelper.GetHdfTypeIdFromType(fileId, elementType);
(attributeId, isNew) = IOHelper.OpenOrCreateAttribute(locationId, name, typeId, (ulong)valueSet.LongLength, dimensionLimitSet);
// write attribute data (regenerate attribute if necessary)
if (initializeAttribute)
{
ulong[] oldValueSetCount;
if (!isNew && callerMemberName != nameof(IOHelper.PrepareAttribute))
{
oldValueSetCount = IOHelper.PrepareAttributeValueSet(attributeId, ref valueSet, false);
}
else
{
oldValueSetCount = new ulong[1] {
(ulong)valueSet.Count()
};
}
if (valueSet.Count() == (int)oldValueSetCount[0])
{
IOHelper.Write(attributeId, valueSet, DataContainerType.Attribute);
}
else
{
H5A.close(attributeId);
H5A.delete(locationId, name);
IOHelper.PrepareAttribute(locationId, name, valueSet, dimensionLimitSet, true);
}
}
}
finally
{
if (H5I.is_valid(attributeId) > 0)
{
H5A.close(attributeId);
}
if (H5I.is_valid(typeId) > 0)
{
H5T.close(typeId);
}
if (H5I.is_valid(fileId) > 0)
{
H5F.close(fileId);
}
}
}
public void H5AdeleteTest2()
{
Assert.IsFalse(
H5A.delete(Utilities.RandomInvalidHandle(), "A") >= 0);
Assert.IsFalse(H5A.delete(m_v0_test_file, ".") >= 0);
}