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Copy pathDuckDBAppenderRow.cs
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247 lines (184 loc) · 7.89 KB
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using DuckDB.NET.Data.DataChunk.Writer;
namespace DuckDB.NET.Data;
public class DuckDBAppenderRow : IDuckDBAppenderRow
{
private int columnIndex = 0;
private readonly string qualifiedTableName;
private readonly VectorDataWriterBase[] vectorWriters;
private ulong rowIndex;
private readonly DuckDBDataChunk dataChunk;
private readonly Native.DuckDBAppender nativeAppender;
internal ulong ChunkRowIndex => rowIndex;
internal DuckDBAppenderRow(string qualifiedTableName, VectorDataWriterBase[] vectorWriters,
ulong rowIndex, DuckDBDataChunk dataChunk, Native.DuckDBAppender nativeAppender)
{
this.qualifiedTableName = qualifiedTableName;
this.vectorWriters = vectorWriters;
this.rowIndex = rowIndex;
this.dataChunk = dataChunk;
this.nativeAppender = nativeAppender;
}
/// <summary>
/// Re-targets this row instance at a new row index so the appender can reuse a single
/// <see cref="DuckDBAppenderRow"/> instead of allocating one per row. The table name, vector
/// writers, data chunk and native appender are stable for the lifetime of the appender, so only
/// the row index and column cursor need to be reset.
/// </summary>
internal void Reset(ulong rowIndex)
{
this.rowIndex = rowIndex;
columnIndex = 0;
}
internal void Invalidate()
{
columnIndex = vectorWriters.Length;
}
public void EndRow()
{
if (columnIndex < vectorWriters.Length)
{
throw new InvalidOperationException($"The table {qualifiedTableName} has {vectorWriters.Length} columns but you specified only {columnIndex} values");
}
}
public IDuckDBAppenderRow AppendNullValue()
{
CheckColumnAccess();
vectorWriters[columnIndex].WriteNull(rowIndex);
columnIndex++;
return this;
}
public IDuckDBAppenderRow AppendValue(bool? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(byte[]? value) => AppendSpan(value);
public IDuckDBAppenderRow AppendValue(Span<byte> value) => AppendSpan(value);
public IDuckDBAppenderRow AppendValue(string? value) => AppendValueInternalClass(value);
public IDuckDBAppenderRow AppendValue(decimal? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(Guid? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(BigInteger? value) => AppendValueInternalStruct(value);
#region Append Signed Int
public IDuckDBAppenderRow AppendValue(sbyte? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(short? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(int? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(long? value) => AppendValueInternalStruct(value);
#endregion
#region Append Unsigned Int
public IDuckDBAppenderRow AppendValue(byte? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(ushort? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(uint? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(ulong? value) => AppendValueInternalStruct(value);
#endregion
#region Append Enum
public IDuckDBAppenderRow AppendValue<TEnum>(TEnum? value) where TEnum : Enum
{
CheckColumnAccess();
if (value != null)
{
vectorWriters[columnIndex].WriteValue(value, rowIndex);
}
else
{
vectorWriters[columnIndex].WriteNull(rowIndex);
}
columnIndex++;
return this;
}
#endregion
#region Append Float
public IDuckDBAppenderRow AppendValue(float? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(double? value) => AppendValueInternalStruct(value);
#endregion
#region Append Temporal
public IDuckDBAppenderRow AppendValue(DateOnly? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(TimeOnly? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(DuckDBDateOnly? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(DuckDBTimeOnly? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(DateTime? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(DateTimeOffset? value) => AppendValueInternalStruct(value);
public IDuckDBAppenderRow AppendValue(TimeSpan? value) => AppendValueInternalStruct(value);
#endregion
#region Composite Types
public IDuckDBAppenderRow AppendValue<T>(IEnumerable<T>? value) => AppendValueInternalClass(value);
#endregion
public IDuckDBAppenderRow AppendDefault()
{
CheckColumnAccess();
var state = NativeMethods.Appender.DuckDBAppendDefaultToChunk(nativeAppender, dataChunk, columnIndex, rowIndex);
if (state == DuckDBState.Error)
{
NativeMethods.Appender.DuckDBAppenderErrorData(nativeAppender).ThrowOnError();
}
columnIndex++;
return this;
}
private DuckDBAppenderRow AppendValueInternalStruct<T>(T? value) where T : struct
{
CheckColumnAccess();
if (value.HasValue)
{
vectorWriters[columnIndex].WriteValue(value.Value, rowIndex);
}
else
{
vectorWriters[columnIndex].WriteNull(rowIndex);
}
columnIndex++;
return this;
}
private DuckDBAppenderRow AppendValueInternalClass<T>(T? value) where T : class
{
CheckColumnAccess();
vectorWriters[columnIndex].WriteValue(value, rowIndex);
columnIndex++;
return this;
}
private unsafe IDuckDBAppenderRow AppendSpan(Span<byte> val)
{
if (val == null)
{
return AppendNullValue();
}
CheckColumnAccess();
fixed (byte* pSource = val)
{
vectorWriters[columnIndex].AppendBlob(pSource, val.Length, rowIndex);
}
columnIndex++;
return this;
}
private void CheckColumnAccess()
{
if (columnIndex >= vectorWriters.Length)
{
throw new IndexOutOfRangeException($"The table {qualifiedTableName} has {vectorWriters.Length} columns but you are trying to append value for column {columnIndex + 1}");
}
}
}
public interface IDuckDBAppenderRow
{
void EndRow();
IDuckDBAppenderRow AppendNullValue();
IDuckDBAppenderRow AppendValue(bool? value);
IDuckDBAppenderRow AppendValue(byte[]? value);
IDuckDBAppenderRow AppendValue(Span<byte> value);
IDuckDBAppenderRow AppendValue(string? value);
IDuckDBAppenderRow AppendValue(decimal? value);
IDuckDBAppenderRow AppendValue(Guid? value);
IDuckDBAppenderRow AppendValue(BigInteger? value);
IDuckDBAppenderRow AppendValue(sbyte? value);
IDuckDBAppenderRow AppendValue(short? value);
IDuckDBAppenderRow AppendValue(int? value);
IDuckDBAppenderRow AppendValue(long? value);
IDuckDBAppenderRow AppendValue(byte? value);
IDuckDBAppenderRow AppendValue(ushort? value);
IDuckDBAppenderRow AppendValue(uint? value);
IDuckDBAppenderRow AppendValue(ulong? value);
IDuckDBAppenderRow AppendValue<TEnum>(TEnum? value) where TEnum : Enum;
IDuckDBAppenderRow AppendValue(float? value);
IDuckDBAppenderRow AppendValue(double? value);
IDuckDBAppenderRow AppendValue(DuckDBDateOnly? value);
IDuckDBAppenderRow AppendValue(DuckDBTimeOnly? value);
IDuckDBAppenderRow AppendValue(DateTime? value);
IDuckDBAppenderRow AppendValue(DateTimeOffset? value);
IDuckDBAppenderRow AppendValue(TimeSpan? value);
IDuckDBAppenderRow AppendValue<T>(IEnumerable<T>? value);
IDuckDBAppenderRow AppendDefault();
}