/// <summary>
/// Constructs a saver for a data view.
/// </summary>
public BinarySaver(IHostEnvironment env, Arguments args)
{
Contracts.CheckValue(env, nameof(env));
_host = env.Register("BinarySaver");
_host.CheckUserArg(!args.MaxRowsPerBlock.HasValue || args.MaxRowsPerBlock > 0, nameof(args.MaxRowsPerBlock), "Must be positive.");
_host.CheckUserArg(!args.MaxBytesPerBlock.HasValue || args.MaxBytesPerBlock > 0, nameof(args.MaxBytesPerBlock), "Must be positive.");
_host.CheckUserArg(args.MaxRowsPerBlock.HasValue || args.MaxBytesPerBlock.HasValue, nameof(args.MaxBytesPerBlock),
"Either " + nameof(args.MaxRowsPerBlock) + " or " + nameof(args.MaxBytesPerBlock) + " must have a value.");
_memPool = new MemoryStreamPool();
_factory = new CodecFactory(_host, _memPool);
_compression = args.Compression;
_maxRowsPerBlock = args.MaxRowsPerBlock;
_maxBytesPerBlock = args.MaxBytesPerBlock;
_deterministicBlockOrder = args.DeterministicBlockOrder;
_silent = args.Silent;
}
public CodecFactory(IHostEnvironment env, MemoryStreamPool memPool = null)
{
Contracts.AssertValue(env, "env");
Contracts.AssertValueOrNull(memPool);
_host = env.Register("CodecFactory");
_memPool = memPool ?? new MemoryStreamPool();
_encoding = Encoding.UTF8;
_loadNameToCodecCreator = new Dictionary <string, GetCodecFromStreamDelegate>();
_simpleCodecTypeMap = new Dictionary <Type, IValueCodec>();
// Register the current codecs.
RegisterSimpleCodec(new UnsafeTypeCodec <sbyte>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <byte>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <short>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <ushort>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <int>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <uint>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <long>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <ulong>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <float>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <double>(this));
RegisterSimpleCodec(new UnsafeTypeCodec <TimeSpan>(this));
RegisterSimpleCodec(new TextCodec(this));
RegisterSimpleCodec(new BoolCodec(this));
RegisterSimpleCodec(new DateTimeCodec(this));
RegisterSimpleCodec(new DateTimeOffsetCodec(this));
RegisterSimpleCodec(new UnsafeTypeCodec <RowId>(this));
// Register the old type system reading codec.
RegisterOtherCodec("DvBool", new OldBoolCodec(this).GetCodec);
RegisterOtherCodec("DvDateTimeZone", new DateTimeOffsetCodec(this).GetCodec);
RegisterOtherCodec("DvDateTime", new DateTimeCodec(this).GetCodec);
RegisterOtherCodec("DvTimeSpan", new UnsafeTypeCodec <TimeSpan>(this).GetCodec);
RegisterOtherCodec("VBuffer", GetVBufferCodec);
RegisterOtherCodec("Key2", GetKeyCodec);
RegisterOtherCodec("Key", GetKeyCodecOld);
}