public static object ConvertFromList(IColumnInfo type_info, byte[] value, Type cSharpType)
{
if (type_info is ListColumnInfo)
{
var list_typecode = (type_info as ListColumnInfo).ValueTypeCode;
var list_typeinfo = (type_info as ListColumnInfo).ValueTypeInfo;
var value_type = TypeInterpreter.GetDefaultTypeFromCqlType(list_typecode, list_typeinfo);
int count = BytesToInt16(value, 0);
int idx = 2;
var openType = typeof(List <>);
var listType = openType.MakeGenericType(value_type);
object ret = Activator.CreateInstance(listType);
var addM = listType.GetMethod("Add");
for (int i = 0; i < count; i++)
{
var val_buf_len = BytesToInt16(value, idx);
idx += 2;
byte[] val_buf = new byte[val_buf_len];
Buffer.BlockCopy(value, idx, val_buf, 0, val_buf_len);
idx += val_buf_len;
addM.Invoke(ret, new object[] { TypeInterpreter.CqlConvert(val_buf, list_typecode, list_typeinfo) });
}
return(ret);
}
throw new DriverInternalError("Invalid ColumnInfo");
}
internal RowSetMetadata(BEBinaryReader reader)
{
var coldat = new List <ColumnDesc>();
var flags = (FlagBits)reader.ReadInt32();
var numberOfcolumns = reader.ReadInt32();
this._rawColumns = new ColumnDesc[numberOfcolumns];
string gKsname = null;
string gTablename = null;
if ((flags & FlagBits.GlobalTablesSpec) == FlagBits.GlobalTablesSpec)
{
gKsname = reader.ReadString();
gTablename = reader.ReadString();
}
for (int i = 0; i < numberOfcolumns; i++)
{
var col = new ColumnDesc();
if ((flags & FlagBits.GlobalTablesSpec) != FlagBits.GlobalTablesSpec)
{
col.Keyspace = reader.ReadString();
col.Table = reader.ReadString();
}
else
{
col.Keyspace = gKsname;
col.Table = gTablename;
}
col.Name = reader.ReadString();
col.TypeCode = (ColumnTypeCode)reader.ReadUInt16();
col.TypeInfo = GetColumnInfo(reader, col.TypeCode);
coldat.Add(col);
}
_rawColumns = coldat.ToArray();
_columns = new CqlColumn[_rawColumns.Length];
_columnIdxes = new Dictionary <string, int>();
for (int i = 0; i < _rawColumns.Length; i++)
{
_columns[i] = new CqlColumn()
{
Name = _rawColumns[i].Name,
Keyspace = _rawColumns[i].Keyspace,
Table = _rawColumns[i].Table,
Type = TypeInterpreter.GetDefaultTypeFromCqlType(
_rawColumns[i].TypeCode,
_rawColumns[i].TypeInfo),
TypeCode = _rawColumns[i].TypeCode,
TypeInfo = _rawColumns[i].TypeInfo
};
//TODO: what with full long column names?
if (!_columnIdxes.ContainsKey(_rawColumns[i].Name))
{
_columnIdxes.Add(_rawColumns[i].Name, i);
}
}
}
public static Type GetDefaultTypeFromList(IColumnInfo type_info)
{
if (type_info is ListColumnInfo)
{
var list_typecode = (type_info as ListColumnInfo).ValueTypeCode;
var list_typeinfo = (type_info as ListColumnInfo).ValueTypeInfo;
var value_type = TypeInterpreter.GetDefaultTypeFromCqlType(list_typecode, list_typeinfo);
var openType = typeof(IEnumerable <>);
var listType = openType.MakeGenericType(value_type);
return(listType);
}
throw new DriverInternalError("Invalid ColumnInfo");
}
public static Type GetDefaultTypeFromMap(IColumnInfo type_info)
{
if (type_info is MapColumnInfo)
{
var key_typecode = (type_info as MapColumnInfo).KeyTypeCode;
var key_typeinfo = (type_info as MapColumnInfo).KeyTypeInfo;
var value_typecode = (type_info as MapColumnInfo).ValueTypeCode;
var value_typeinfo = (type_info as MapColumnInfo).ValueTypeInfo;
var key_type = TypeInterpreter.GetDefaultTypeFromCqlType(key_typecode, key_typeinfo);
var value_type = TypeInterpreter.GetDefaultTypeFromCqlType(value_typecode, value_typeinfo);
var openType = typeof(IDictionary <,>);
var dicType = openType.MakeGenericType(key_type, value_type);
return(dicType);
}
throw new DriverInternalError("Invalid ColumnInfo");
}
public static object ConvertFromMap(IColumnInfo type_info, byte[] value, Type cSharpType)
{
if (type_info is MapColumnInfo)
{
var key_typecode = (type_info as MapColumnInfo).KeyTypeCode;
var key_typeinfo = (type_info as MapColumnInfo).KeyTypeInfo;
var value_typecode = (type_info as MapColumnInfo).ValueTypeCode;
var value_typeinfo = (type_info as MapColumnInfo).ValueTypeInfo;
var key_type = TypeInterpreter.GetDefaultTypeFromCqlType(key_typecode, key_typeinfo);
var value_type = TypeInterpreter.GetDefaultTypeFromCqlType(value_typecode, value_typeinfo);
int count = BytesToUInt16(value, 0);
int idx = 2;
var openType = typeof(SortedDictionary <,>);
var dicType = openType.MakeGenericType(key_type, value_type);
object ret = Activator.CreateInstance(dicType);
var addM = dicType.GetMethod("Add");
for (int i = 0; i < count; i++)
{
var key_buf_len = BytesToUInt16(value, idx);
idx += 2;
byte[] key_buf = new byte[key_buf_len];
Buffer.BlockCopy(value, idx, key_buf, 0, key_buf_len);
idx += key_buf_len;
var value_buf_len = BytesToUInt16(value, idx);
idx += 2;
byte[] value_buf = new byte[value_buf_len];
Buffer.BlockCopy(value, idx, value_buf, 0, value_buf_len);
idx += value_buf_len;
addM.Invoke(ret, new object[] {
TypeInterpreter.CqlConvert(key_buf, key_typecode, key_typeinfo),
TypeInterpreter.CqlConvert(value_buf, value_typecode, value_typeinfo)
});
}
return(ret);
}
throw new DriverInternalError("Invalid ColumnInfo");
}
public static byte[] InvConvertFromMap(IColumnInfo type_info, object value)
{
var dicType = GetDefaultTypeFromMap(type_info);
CheckArgument(dicType, value);
var key_typecode = (type_info as MapColumnInfo).KeyTypeCode;
var key_typeinfo = (type_info as MapColumnInfo).KeyTypeInfo;
var value_typecode = (type_info as MapColumnInfo).ValueTypeCode;
var value_typeinfo = (type_info as MapColumnInfo).ValueTypeInfo;
var key_type = TypeInterpreter.GetDefaultTypeFromCqlType(key_typecode, key_typeinfo);
var value_type = TypeInterpreter.GetDefaultTypeFromCqlType(value_typecode, value_typeinfo);
List <byte[]> kbufs = new List <byte[]>();
List <byte[]> vbufs = new List <byte[]>();
int cnt = 0;
int bsize = 2;
var key_prop = dicType.GetProperty("Keys");
var value_prop = dicType.GetProperty("Values");
foreach (var obj in key_prop.GetValue(value, new object[] { }) as IEnumerable)
{
var buf = TypeInterpreter.InvCqlConvert(obj, key_typecode, key_typeinfo);
kbufs.Add(buf);
bsize += 2; //size of key
bsize += buf.Length;
cnt++;
}
foreach (var obj in value_prop.GetValue(value, new object[] { }) as IEnumerable)
{
var buf = TypeInterpreter.InvCqlConvert(obj, value_typecode, value_typeinfo);
vbufs.Add(buf);
bsize += 2; //size of value
bsize += buf.Length;
}
var ret = new byte[bsize];
var cntbuf = Int16ToBytes((short)cnt); // short or ushort ?
int idx = 0;
Buffer.BlockCopy(cntbuf, 0, ret, 0, 2);
idx += 2;
for (int i = 0; i < cnt; i++)
{
{
var buf = kbufs[i];
var keyval_buf_size = Int16ToBytes((short)buf.Length);
Buffer.BlockCopy(keyval_buf_size, 0, ret, idx, 2);
idx += 2;
Buffer.BlockCopy(buf, 0, ret, idx, buf.Length);
idx += buf.Length;
}
{
var buf = vbufs[i];
var keyval_buf_size = Int16ToBytes((short)buf.Length);
Buffer.BlockCopy(keyval_buf_size, 0, ret, idx, 2);
idx += 2;
Buffer.BlockCopy(buf, 0, ret, idx, buf.Length);
idx += buf.Length;
}
}
return(ret);
}