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// 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.Diagnostics;
using System.Numerics;
using Apache.Arrow.Arrays;
using Apache.Arrow.Types;
namespace Apache.Arrow
{
public class Decimal128Array : FixedSizeBinaryArray
{
public class Builder : BuilderBase<Decimal128Array, Builder>
{
public Builder(Decimal128Type type) : base(type, 16)
{
DataType = type;
}
protected new Decimal128Type DataType { get; }
protected override Decimal128Array Build(ArrayData data)
{
return new Decimal128Array(data);
}
public Builder Append(decimal value)
{
Span<byte> bytes = stackalloc byte[DataType.ByteWidth];
DecimalUtility.GetBytes(value, DataType.Precision, DataType.Scale, DataType.ByteWidth, bytes);
return Append(bytes);
}
public Builder AppendRange(IEnumerable<decimal> values)
{
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
foreach (decimal d in values)
{
Append(d);
}
return Instance;
}
public Builder Set(int index, decimal value)
{
Span<byte> bytes = stackalloc byte[DataType.ByteWidth];
DecimalUtility.GetBytes(value, DataType.Precision, DataType.Scale, DataType.ByteWidth, bytes);
return Set(index, bytes);
}
}
public Decimal128Array(ArrayData data)
: base(ArrowTypeId.Decimal128, data)
{
data.EnsureDataType(ArrowTypeId.Decimal128);
data.EnsureBufferCount(2);
Debug.Assert(Data.DataType is Decimal128Type);
}
public override void Accept(IArrowArrayVisitor visitor) => Accept(this, visitor);
public int Scale => ((Decimal128Type)Data.DataType).Scale;
public int Precision => ((Decimal128Type)Data.DataType).Precision;
public int ByteWidth => ((Decimal128Type)Data.DataType).ByteWidth;
public decimal? GetValue(int index)
{
if (IsNull(index))
{
return null;
}
return DecimalUtility.GetDecimal(ValueBuffer, index, Scale, ByteWidth);
}
}
}
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