public override IEnumerable Deserialize(ushort protocolVersion, byte[] buffer, int offset, int length, IColumnInfo typeInfo)
{
ColumnTypeCode?childTypeCode = null;
IColumnInfo childTypeInfo = null;
var listInfo = typeInfo as ListColumnInfo;
if (listInfo != null)
{
childTypeCode = listInfo.ValueTypeCode;
childTypeInfo = listInfo.ValueTypeInfo;
}
var setInfo = typeInfo as SetColumnInfo;
if (setInfo != null)
{
childTypeCode = setInfo.KeyTypeCode;
childTypeInfo = setInfo.KeyTypeInfo;
}
if (childTypeCode == null)
{
throw new DriverInternalError(string.Format("CollectionSerializer can not deserialize CQL values of type {0}",
typeInfo == null ? "null" : typeInfo.GetType().FullName));
}
var count = DecodeCollectionLength((ProtocolVersion)protocolVersion, buffer, ref offset);
var childType = GetClrType(childTypeCode.Value, childTypeInfo);
var result = Array.CreateInstance(childType, count);
for (var i = 0; i < count; i++)
{
var itemLength = DecodeCollectionLength((ProtocolVersion)protocolVersion, buffer, ref offset);
result.SetValue(DeserializeChild(buffer, offset, itemLength, childTypeCode.Value, childTypeInfo), i);
offset += itemLength;
}
return(result);
}
public override IEnumerable Deserialize(ushort protocolVersion, byte[] buffer, int offset, int length, IColumnInfo typeInfo)
{
ColumnTypeCode?childTypeCode = null;
IColumnInfo childTypeInfo = null;
var listInfo = typeInfo as ListColumnInfo;
if (listInfo != null)
{
childTypeCode = listInfo.ValueTypeCode;
childTypeInfo = listInfo.ValueTypeInfo;
}
var setInfo = typeInfo as SetColumnInfo;
if (setInfo != null)
{
childTypeCode = setInfo.KeyTypeCode;
childTypeInfo = setInfo.KeyTypeInfo;
}
if (childTypeCode == null)
{
throw new DriverInternalError(string.Format("CollectionSerializer can not deserialize CQL values of type {0}",
typeInfo == null ? "null" : typeInfo.GetType().FullName));
}
var count = DecodeCollectionLength((ProtocolVersion)protocolVersion, buffer, ref offset);
var childType = GetClrType(childTypeCode.Value, childTypeInfo);
var result = Array.CreateInstance(childType, count);
bool?isNullable = null;
for (var i = 0; i < count; i++)
{
var itemLength = DecodeCollectionLength((ProtocolVersion)protocolVersion, buffer, ref offset);
if (itemLength < 0)
{
if (isNullable == null)
{
isNullable = !childType.GetTypeInfo().IsValueType;
}
if (!isNullable.Value)
{
var nullableType = typeof(Nullable <>).MakeGenericType(childType);
var newResult = Array.CreateInstance(nullableType, count);
for (var j = 0; j < i; j++)
{
newResult.SetValue(result.GetValue(j), j);
}
result = newResult;
childType = nullableType;
isNullable = true;
}
result.SetValue(null, i);
}
else
{
result.SetValue(DeserializeChild(protocolVersion, buffer, offset, itemLength, childTypeCode.Value, childTypeInfo), i);
offset += itemLength;
}
}
return(result);
}