public static SqlType Serialize(SqlType type, ISqlTypeResolver typeResolver = null)
{
var bytes = SqlType.Serialize(type);
using (var stream = new MemoryStream(bytes)) {
return(SqlType.Deserialize(stream, typeResolver));
}
}
public static SqlType Deserialize(BinaryReader reader, ISqlTypeResolver typeResolver)
{
var typeCode = (SqlTypeCode)reader.ReadByte();
if (SqlBooleanType.IsBooleanType(typeCode))
{
return(PrimitiveTypes.Boolean(typeCode));
}
if (SqlDateTimeType.IsDateType(typeCode))
{
return(PrimitiveTypes.DateTime(typeCode));
}
if (typeCode == SqlTypeCode.DayToSecond)
{
return(PrimitiveTypes.DayToSecond());
}
if (typeCode == SqlTypeCode.YearToMonth)
{
return(PrimitiveTypes.YearToMonth());
}
if (SqlCharacterType.IsStringType(typeCode))
{
var maxSize = reader.ReadInt32();
CultureInfo locale = null;
var hasLocale = reader.ReadByte() == 1;
if (hasLocale)
{
var name = reader.ReadString();
locale = new CultureInfo(name);
}
return(PrimitiveTypes.String(typeCode, maxSize, locale));
}
if (SqlNumericType.IsNumericType(typeCode))
{
var size = reader.ReadInt32();
var scale = reader.ReadInt32();
return(PrimitiveTypes.Numeric(typeCode, size, scale));
}
if (SqlBinaryType.IsBinaryType(typeCode))
{
var size = reader.ReadInt32();
return(PrimitiveTypes.Binary(typeCode, size));
}
if (typeCode == SqlTypeCode.Type)
{
if (typeResolver == null)
{
throw new NotSupportedException("User-Defined types require a resolver context.");
}
// TODO: support type arguments
var typeName = reader.ReadString();
return(typeResolver.Resolve(new SqlTypeResolveInfo(typeName)));
}
/*
* TODO:
* if (typeCode == SqlTypeCode.QueryPlan)
* return new SqlQueryType();
*/
if (typeCode == SqlTypeCode.Array)
{
var size = reader.ReadInt32();
return(new SqlArrayType(size));
}
throw new NotSupportedException($"The type code '{typeCode}' does not support deserialization");
}
public static SqlType Deserialize(Stream input, ISqlTypeResolver typeResolver)
{
var reader = new BinaryReader(input);
return(Deserialize(reader, typeResolver));
}
public static SqlType Deserialize(BinaryReader reader, ISqlTypeResolver resolver)
{
throw new NotImplementedException();
}
