/// <summary>Converts a List of RowStore-objects into an array of T-objects on a best-effort-match basis. Parallelized. Does not throw on any mismatches.</summary>
public static T[] ToObjectArray<T>(this IReadOnlyList<dynamic> listOfDynamic, Func<T> objectFactory) where T : class
{
unchecked
{
var listOfRowStore = (IReadOnlyList<RowStore>)listOfDynamic;
int newListCount = listOfRowStore.Count;
T[] newList = new T[newListCount];
if (newListCount == 0) return newList;
RowStore firstElement = listOfRowStore[0];
int fieldCount = firstElement.RowValues.Length;
var settersArray = new Action<T, object>[fieldCount];
var setters = ReflectionHelper_Setter<T>.Setters;
var settersEnumerator = setters.GetEnumerator();
while (settersEnumerator.MoveNext())
{
var setter = settersEnumerator.Current;
if (firstElement.Schema.FieldMap.TryGetValue(setter.Key, out var index))
settersArray[index] = setter.Value;
}
Parallel.For(0, newListCount, s_ParallelOptions, i =>
{
unchecked
{
T objT = objectFactory();
newList[i] = objT;
object[] rowValues = (listOfRowStore[i]).RowValues;
for (int j = 0; j < rowValues.Length; ++j)
{
var setter = settersArray[j];
if (setter != null)
{
object val = rowValues[j];
setter(objT, val == DBNull.Value ? null : val);
}
}
}
});
return newList;
}
}// ToObjectArray<T>()
public static T[] ToObjectArray<T>(this List<RowStore> listOfRowStore, Func<T> objectFactory) where T : class
{
unchecked
{
var listOfRowStoreAlias = listOfRowStore;
int newArrayLength = listOfRowStoreAlias.Count;
T[] newArray = new T[newArrayLength];
if (newArrayLength == 0) return newArray;
var objectFactoryAlias = objectFactory;
RowStore[] arrayOfRowStore = listOfRowStoreAlias.GetList_itemsArray();
ref RowStore firstElement = ref arrayOfRowStore[0];
var settersArray = new Action<T, object>[firstElement.RowValues.Length];
var fieldNames = firstElement.Schema.FieldNames;
var settersMap = ReflectionHelper_Setter<T>.Setters;
for (int i = 0; i < fieldNames.Length; ++i)
{
if (settersMap.TryGetValue(fieldNames[i], out var setter))
settersArray[i] = setter;
}
Parallel.For(0, newArrayLength, i =>
{
T objT = objectFactoryAlias();
newArray[i] = objT;
object[] rowValues = arrayOfRowStore[i].RowValues;
for (i = 0; i < rowValues.Length; ++i)
{
settersArray[i]?.Invoke(objT, rowValues[i]);
}//for
});
return newArray;
}//unchecked
