public static TValue Return <TArg0, TValue>(ParquetHandle handle, TArg0 arg0, GetFunction <TArg0, TValue> getter)
{
var value = Return(handle.IntPtr, arg0, getter);
GC.KeepAlive(handle);
return(value);
}
internal ColumnReader(ParquetHandle handle, RowGroupReader rowGroupReader, ColumnChunkMetaData columnChunkMetaData, int columnIndex)
{
Handle = handle;
RowGroupReader = rowGroupReader;
ColumnChunkMetaData = columnChunkMetaData;
ColumnIndex = columnIndex;
}
public FileEncryptionPropertiesBuilder(byte[] footerKey)
{
var footerAesKey = new AesKey(footerKey);
ExceptionInfo.Check(FileEncryptionPropertiesBuilder_Create(in footerAesKey, out var handle));
_handle = new ParquetHandle(handle, FileEncryptionPropertiesBuilder_Free);
}
internal static Statistics?Create(IntPtr handle)
{
if (handle == IntPtr.Zero)
{
return(null);
}
var parquetHandle = new ParquetHandle(handle, Statistics_Free);
try
{
var type = ExceptionInfo.Return <PhysicalType>(handle, Statistics_Physical_Type);
return(type switch
{
PhysicalType.Boolean => new Statistics <bool>(parquetHandle),
PhysicalType.Int32 => new Statistics <int>(parquetHandle),
PhysicalType.Int64 => new Statistics <long>(parquetHandle),
PhysicalType.Int96 => new Statistics <Int96>(parquetHandle),
PhysicalType.Float => new Statistics <float>(parquetHandle),
PhysicalType.Double => new Statistics <double>(parquetHandle),
PhysicalType.ByteArray => new Statistics <ByteArray>(parquetHandle),
PhysicalType.FixedLenByteArray => new Statistics <FixedLenByteArray>(parquetHandle),
_ => throw new NotSupportedException($"Physical type {type} is not supported")
});
}
private static string ConvertPtrToString(ParquetHandle handle, Action <IntPtr>?deleter, IntPtr value)
{
var str = Marshal.PtrToStringAnsi(value);
deleter?.Invoke(value);
GC.KeepAlive(handle);
return(str);
}
public static string ReturnString(ParquetHandle handle, GetFunction <IntPtr> getter, Action <IntPtr> deleter = null)
{
Check(getter(handle.IntPtr, out var value));
var str = Marshal.PtrToStringAnsi(value);
deleter?.Invoke(value);
GC.KeepAlive(handle);
return(str);
}
public ParquetFileReader(InputStream inputStream)
{
if (inputStream == null)
{
throw new ArgumentNullException(nameof(inputStream));
}
_handle = new ParquetHandle(ExceptionInfo.Return <IntPtr>(inputStream.Handle, ParquetFileReader_Open), ParquetFileReader_Free);
}
public ParquetFileReader(RandomAccessFile randomAccessFile)
{
if (randomAccessFile == null)
{
throw new ArgumentNullException(nameof(randomAccessFile));
}
_handle = new ParquetHandle(ExceptionInfo.Return <IntPtr>(randomAccessFile.Handle, ParquetFileReader_Open), ParquetFileReader_Free);
}
public ParquetFileReader(string path)
{
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
ExceptionInfo.Check(ParquetFileReader_OpenFile(path, out var reader));
_handle = new ParquetHandle(reader, ParquetFileReader_Free);
}
internal static Statistics Create(IntPtr handle)
{
if (handle == IntPtr.Zero)
{
return(null);
}
var parquetHandle = new ParquetHandle(handle, Statistics_Free);
try
{
var type = ExceptionInfo.Return <PhysicalType>(handle, Statistics_Physical_Type);
switch (type)
{
case PhysicalType.Boolean:
return(new Statistics <bool>(parquetHandle));
case PhysicalType.Int32:
return(new Statistics <int>(parquetHandle));
case PhysicalType.Int64:
return(new Statistics <long>(parquetHandle));
case PhysicalType.Int96:
return(new Statistics <Int96>(parquetHandle));
case PhysicalType.Float:
return(new Statistics <float>(parquetHandle));
case PhysicalType.Double:
return(new Statistics <double>(parquetHandle));
case PhysicalType.ByteArray:
return(new Statistics <ByteArray>(parquetHandle));
case PhysicalType.FixedLenByteArray:
return(new Statistics <FixedLenByteArray>(parquetHandle));
default:
throw new NotSupportedException($"Physical type {type} is not supported");
}
}
catch
{
parquetHandle.Dispose();
throw;
}
}
public ParquetFileReader(RandomAccessFile randomAccessFile, ReaderProperties readerProperties)
{
if (randomAccessFile == null)
{
throw new ArgumentNullException(nameof(randomAccessFile));
}
if (readerProperties == null)
{
throw new ArgumentNullException(nameof(readerProperties));
}
_handle = new ParquetHandle(ExceptionInfo.Return <IntPtr, IntPtr>(randomAccessFile.Handle, readerProperties.Handle.IntPtr, ParquetFileReader_Open), ParquetFileReader_Free);
GC.KeepAlive(readerProperties);
}
public ParquetFileReader(string path, ReaderProperties readerProperties)
{
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
if (readerProperties == null)
{
throw new ArgumentNullException(nameof(readerProperties));
}
ExceptionInfo.Check(ParquetFileReader_OpenFile(path, readerProperties.Handle.IntPtr, out var reader));
_handle = new ParquetHandle(reader, ParquetFileReader_Free);
GC.KeepAlive(readerProperties);
}
internal static ColumnReader Create(IntPtr handle, ColumnChunkMetaData columnChunkMetaData)
{
var parquetHandle = new ParquetHandle(handle, ColumnReader_Free);
try
{
var type = ExceptionInfo.Return <PhysicalType>(handle, ColumnReader_Type);
switch (type)
{
case PhysicalType.Boolean:
return(new ColumnReader <bool>(parquetHandle, columnChunkMetaData));
case PhysicalType.Int32:
return(new ColumnReader <int>(parquetHandle, columnChunkMetaData));
case PhysicalType.Int64:
return(new ColumnReader <long>(parquetHandle, columnChunkMetaData));
case PhysicalType.Int96:
return(new ColumnReader <Int96>(parquetHandle, columnChunkMetaData));
case PhysicalType.Float:
return(new ColumnReader <float>(parquetHandle, columnChunkMetaData));
case PhysicalType.Double:
return(new ColumnReader <double>(parquetHandle, columnChunkMetaData));
case PhysicalType.ByteArray:
return(new ColumnReader <ByteArray>(parquetHandle, columnChunkMetaData));
case PhysicalType.FixedLenByteArray:
return(new ColumnReader <FixedLenByteArray>(parquetHandle, columnChunkMetaData));
default:
throw new NotSupportedException($"Physical type {type} is not supported");
}
}
catch
{
parquetHandle.Dispose();
throw;
}
}
public WriterPropertiesBuilder()
{
ExceptionInfo.Check(WriterPropertiesBuilder_Create(out var handle));
_handle = new ParquetHandle(handle, WriterPropertiesBuilder_Free);
}
internal ColumnReader(ParquetHandle handle, ColumnChunkMetaData columnChunkMetaData)
{
Handle = handle;
ColumnChunkMetaData = columnChunkMetaData;
}
public FileDecryptionPropertiesBuilder()
{
ExceptionInfo.Check(FileDecryptionPropertiesBuilder_Create(out var handle));
_handle = new ParquetHandle(handle, FileDecryptionPropertiesBuilder_Free);
}
internal ColumnChunkMetaData(IntPtr handle)
{
_handle = new ParquetHandle(handle, ColumnChunkMetaData_Free);
}
internal FileDecryptionProperties(IntPtr handle)
{
Handle = new ParquetHandle(handle, FileDecryptionProperties_Free);
}
internal FileMetaData(IntPtr handle)
{
_handle = new ParquetHandle(handle, FileMetaData_Free);
}
internal ReaderProperties(IntPtr handle)
{
Handle = new ParquetHandle(handle, ReaderProperties_Free);
}
public KeyValueMetadata(IntPtr handle)
{
Handle = new ParquetHandle(handle, KeyValueMetadata_Free);
}
protected LogicalType(IntPtr handle)
{
Handle = new ParquetHandle(handle, LogicalType_Free);
}
public ParquetFileReader(InputStream inputStream)
{
ExceptionInfo.Check(ParquetFileReader_Open(inputStream.Handle, out var reader));
GC.KeepAlive(inputStream);
_handle = new ParquetHandle(reader, ParquetFileReader_Free);
}
internal WriterProperties(IntPtr handle)
{
Handle = new ParquetHandle(handle, WriterProperties_Free);
}
internal RowGroupReader(IntPtr handle)
{
_handle = new ParquetHandle(handle, RowGroupReader_Free);
}
internal RowGroupReader(IntPtr handle, ParquetFileReader parquetFileReader)
{
_handle = new ParquetHandle(handle, RowGroupReader_Free);
ParquetFileReader = parquetFileReader;
}
public ParquetFileReader(string path)
{
ExceptionInfo.Check(ParquetFileReader_OpenFile(path, out var reader));
_handle = new ParquetHandle(reader, ParquetFileReader_Free);
}
public static string ReturnString(ParquetHandle handle, GetFunction <IntPtr> getter, Action <IntPtr>?deleter = null)
{
Check(getter(handle.IntPtr, out var value));
return(ConvertPtrToString(handle, deleter, value));
}
internal ColumnDecryptionPropertiesBuilder(IntPtr handle)
{
_handle = new ParquetHandle(handle, ColumnDecryptionPropertiesBuilder_Free);
}
internal ColumnEncryptionProperties(IntPtr handle)
{
Handle = new ParquetHandle(handle, ColumnEncryptionProperties_Free);
}
