/// <summary>
/// This method maps keys and values of the map and copies them into a Dictionary
/// and returns as an instance of DisposableNamedOnnxValue that does not own or dispose
/// any onnx/ortValueElement. The method takes possession of ortValueTensorKeys and ortValueTensorValues
/// and disposes of them. The original ortValueElement looses ownership of the Tensor. The caller is still responsible
/// for disposing these arguments. Disposing ortValueElement that does not have ownership is a no-op, however, either
/// of the arguments may still need to be disposed on exception.
/// </summary>
/// <typeparam name="K">key type</typeparam>
/// <typeparam name="V">value type</typeparam>
/// <param name="name">name of the output parameter</param>
/// <param name="ortValueTensorKeys">tensor with map keys.</param>
/// <param name="nativeOnnxValueValues">tensor with map values</param>
/// <returns>instance of DisposableNamedOnnxValue with Dictionary</returns>
private static DisposableNamedOnnxValue DisposableNamedOnnxValueFromNativeMapElements <K, V>(string name,
OrtValue ortValueTensorKeys, OrtValue ortValueTensorValues)
{
using (var nativeTensorWrapperValues = new NativeOnnxTensorMemory <V>(ortValueTensorValues))
{
var denseTensorValues = new DenseTensor <V>(nativeTensorWrapperValues.Memory, nativeTensorWrapperValues.Dimensions);
if (typeof(K) == typeof(string))
{
var map = new Dictionary <string, V>();
using (var nativeTensorWrapper = new NativeOnnxTensorMemory <string>(ortValueTensorKeys))
{
var denseTensorKeys = new DenseTensor <string>(nativeTensorWrapper.GetBytesAsStringMemory(), nativeTensorWrapper.Dimensions);
for (var i = 0; i < denseTensorKeys.Length; i++)
{
map.Add(denseTensorKeys.GetValue(i), denseTensorValues.GetValue(i));
}
return(new DisposableNamedOnnxValue(name, map, OnnxValueType.ONNX_TYPE_MAP, TensorElementType.DataTypeMax, null));
}
}
else
{
var map = new Dictionary <K, V>();
using (var nativeTensorWrapper = new NativeOnnxTensorMemory <K>(ortValueTensorKeys))
{
var denseTensorKeys = new DenseTensor <K>(nativeTensorWrapper.Memory, nativeTensorWrapper.Dimensions);
for (var i = 0; i < denseTensorKeys.Length; i++)
{
map.Add(denseTensorKeys.GetValue(i), denseTensorValues.GetValue(i));
}
return(new DisposableNamedOnnxValue(name, map, OnnxValueType.ONNX_TYPE_MAP, TensorElementType.DataTypeMax, null));
}
}
}
}
private static DisposableNamedOnnxValue DisposableNamedOnnxValueFromNativeMap <K, V>(string name, IntPtr nativeOnnxValueKeys, IntPtr nativeOnnxValueValues)
{
var nativeTensorWrapperValues = new NativeOnnxTensorMemory <V>(nativeOnnxValueValues);
var denseTensorValues = new DenseTensor <V>(nativeTensorWrapperValues.Memory, nativeTensorWrapperValues.Dimensions);
if (typeof(K) == typeof(string))
{
var map = new Dictionary <string, V>();
var nativeTensorWrapper = new NativeOnnxTensorMemory <byte>(nativeOnnxValueKeys, true);
var denseTensorKeys = new DenseTensor <string>(nativeTensorWrapper.GetBytesAsStringMemory(), nativeTensorWrapper.Dimensions);
for (var i = 0; i < denseTensorKeys.Length; i++)
{
map.Add(denseTensorKeys.GetValue(i), denseTensorValues.GetValue(i));
}
// release native memory
nativeTensorWrapperValues.Dispose();
nativeTensorWrapper.Dispose();
return(new DisposableNamedOnnxValue(string.Empty, map, null));
}
else
{
var map = new Dictionary <K, V>();
var nativeTensorWrapper = new NativeOnnxTensorMemory <K>(nativeOnnxValueKeys);
var denseTensorKeys = new DenseTensor <K>(nativeTensorWrapper.Memory, nativeTensorWrapper.Dimensions);
for (var i = 0; i < denseTensorKeys.Length; i++)
{
map.Add(denseTensorKeys.GetValue(i), denseTensorValues.GetValue(i));
}
// release native memory
nativeTensorWrapperValues.Dispose();
nativeTensorWrapper.Dispose();
return(new DisposableNamedOnnxValue(string.Empty, map, null));
}
}