public BooleanArray(
ArrowBuffer valueBuffer, ArrowBuffer nullBitmapBuffer,
int length, int nullCount, int offset)
: this(new ArrayData(BooleanType.Default, length, nullCount, offset,
new[] { nullBitmapBuffer, valueBuffer }))
{
}
public Time32Array(
Time32Type type,
ArrowBuffer valueBuffer, ArrowBuffer nullBitmapBuffer,
int length, int nullCount, int offset)
: this(new ArrayData(type, length, nullCount, offset,
new[] { nullBitmapBuffer, valueBuffer }))
{
}
public void Visit(FixedWidthType type)
{
CheckData(type, 2);
ArrowBuffer validityBuffer = ConcatenateValidityBuffer();
ArrowBuffer valueBuffer = ConcatenateFixedWidthTypeValueBuffer(type);
Result = new ArrayData(type, _totalLength, _totalNullCount, 0, new ArrowBuffer[] { validityBuffer, valueBuffer });
}
public void Visit(BooleanType type)
{
CheckData(type, 2);
ArrowBuffer validityBuffer = ConcatenateValidityBuffer();
ArrowBuffer valueBuffer = ConcatenateBitmapBuffer(1);
Result = new ArrayData(type, _totalLength, _totalNullCount, 0, new ArrowBuffer[] { validityBuffer, valueBuffer });
}
public ListArray(IArrowType dataType, int length,
ArrowBuffer valueOffsetsBuffer, IArrowArray values,
ArrowBuffer nullBitmapBuffer, int nullCount = 0, int offset = 0)
: this(new ArrayData(dataType, length, nullCount, offset,
new[] { nullBitmapBuffer, valueOffsetsBuffer }, new[] { values.Data }),
values)
{
}
public StringArray(int length,
ArrowBuffer valueOffsetsBuffer,
ArrowBuffer dataBuffer,
ArrowBuffer nullBitmapBuffer,
int nullCount = 0, int offset = 0)
: this(new ArrayData(StringType.Default, length, nullCount, offset,
new[] { nullBitmapBuffer, valueOffsetsBuffer, dataBuffer }))
{
}
private void ConcatenateVariableBinaryArrayData(IArrowType type)
{
CheckData(type, 3);
ArrowBuffer validityBuffer = ConcatenateValidityBuffer();
ArrowBuffer offsetBuffer = ConcatenateOffsetBuffer();
ArrowBuffer valueBuffer = ConcatenateVariableBinaryValueBuffer();
Result = new ArrayData(type, _totalLength, _totalNullCount, 0, new ArrowBuffer[] { validityBuffer, offsetBuffer, valueBuffer });
}
public BinaryArray(IArrowType dataType, int length,
ArrowBuffer valueOffsetsBuffer,
ArrowBuffer dataBuffer,
ArrowBuffer nullBitmapBuffer,
int nullCount = 0, int offset = 0)
: this(new ArrayData(dataType, length, nullCount, offset,
new[] { nullBitmapBuffer, valueOffsetsBuffer, dataBuffer }))
{
}
public StructArray(
IArrowType dataType, int length,
IEnumerable <Array> children,
ArrowBuffer nullBitmapBuffer, int nullCount = 0, int offset = 0)
: this(new ArrayData(
dataType, length, nullCount, offset, new[] { nullBitmapBuffer },
children.Select(child => child.Data)))
{
}
public void Visit(ListType type)
{
CheckData(type, 2);
ArrowBuffer validityBuffer = ConcatenateValidityBuffer();
ArrowBuffer offsetBuffer = ConcatenateOffsetBuffer();
ArrayData child = Concatenate(SelectChildren(0), _allocator);
Result = new ArrayData(type, _totalLength, _totalNullCount, 0, new ArrowBuffer[] { validityBuffer, offsetBuffer }, new[] { child });
}
public BooleanArray Build(MemoryAllocator allocator = default)
{
ArrowBuffer validityBuffer = NullCount > 0
? ValidityBuffer.Build(allocator)
: ArrowBuffer.Empty;
return(new BooleanArray(
ValueBuffer.Build(allocator), validityBuffer,
Length, NullCount, 0));
}
public TimestampArray(
TimestampType type,
ArrowBuffer valueBuffer, ArrowBuffer nullBitmapBuffer,
int length, int nullCount, int offset)
: this(new ArrayData(type, length, nullCount, offset,
new[] { nullBitmapBuffer, valueBuffer }))
{
TimeZone = type.Timezone != null
? TimeZoneInfo.FindSystemTimeZoneById(type.Timezone) ?? TimeZoneInfo.Utc
: TimeZoneInfo.Utc;
}
public ListArray Build(MemoryAllocator allocator = default)
{
Append();
ArrowBuffer validityBuffer = NullCount > 0
? ValidityBufferBuilder.Build(allocator)
: ArrowBuffer.Empty;
return(new ListArray(DataType, Length - 1,
ValueOffsetsBufferBuilder.Build(allocator), ValueBuilder.Build(allocator),
validityBuffer, NullCount, 0));
}
public TArray Build(MemoryAllocator allocator = default)
{
ValueOffsets.Append(Offset);
ArrowBuffer validityBuffer = NullCount > 0
? ValidityBuffer.Build(allocator).ValueBuffer
: ArrowBuffer.Empty;
var data = new ArrayData(DataType, ValueOffsets.Length - 1, NullCount, 0,
new[] { validityBuffer, ValueOffsets.Build(allocator), ValueBuffer.Build(allocator) });
return(Build(data));
}
public static Bitmap Allocate(int bitCount, MemoryPool memoryPool = default)
{
var size = bitCount / 8 + (bitCount % 8 > 0 ? 1 : 0);
var remainder = size % 64;
var len = (remainder == 0) ? size : size + 64 - remainder;
// Allocate buffer from memory pool and enable all bits
var buffer = ArrowBuffer.Allocate(len, memoryPool);
var span = buffer.GetSpan <byte>();
span.Fill(0xff);
return(new Bitmap(buffer));
}
public Bitmap(ArrowBuffer buffer)
{
Buffer = buffer;
}
protected override Time32Array Build(
ArrowBuffer valueBuffer, ArrowBuffer nullBitmapBuffer,
int length, int nullCount, int offset) =>
new Time32Array(DataType, valueBuffer, nullBitmapBuffer, length, nullCount, offset);
protected override UInt8Array Build(
ArrowBuffer valueBuffer, ArrowBuffer nullBitmapBuffer,
int length, int nullCount, int offset) =>
new UInt8Array(valueBuffer, nullBitmapBuffer, length, nullCount, offset);
public Builder <T> Append(ArrowBuffer buffer)
{
Append(buffer.Span.CastTo <T>());
return(this);
}
