| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| using System; |
| using System.Collections.Generic; |
| using System.Runtime.CompilerServices; |
| |
| namespace Apache.Arrow |
| { |
| public abstract class PrimitiveArray<T> : Array |
| where T : struct |
| { |
| protected PrimitiveArray(ArrayData data) |
| : base(data) |
| { |
| data.EnsureBufferCount(2); |
| } |
| |
| public ArrowBuffer ValueBuffer => Data.Buffers[1]; |
| |
| public ReadOnlySpan<T> Values => ValueBuffer.Span.CastTo<T>().Slice(Offset, Length); |
| |
| [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| public T? GetValue(int index) |
| { |
| if (index < 0 || index >= Length) |
| { |
| throw new ArgumentOutOfRangeException(nameof(index)); |
| } |
| return IsValid(index) ? Values[index] : (T?)null; |
| } |
| |
| public IList<T?> ToList(bool includeNulls = false) |
| { |
| ReadOnlySpan<T> span = Values; |
| var list = new List<T?>(span.Length); |
| |
| for (int i = 0; i < span.Length; i++) |
| { |
| T? value = GetValue(i); |
| |
| if (value.HasValue) |
| { |
| list.Add(value.Value); |
| } |
| else |
| { |
| if (includeNulls) |
| { |
| list.Add(null); |
| } |
| } |
| } |
| |
| return list; |
| } |
| } |
| } |