internal SqlDataRecord(SmiRecordBuffer recordBuffer, params SmiExtendedMetaData[] metaData)
{
Debug.Assert(null != recordBuffer, "invalid attempt to instantiate SqlDataRecord with null SmiRecordBuffer");
Debug.Assert(null != metaData, "invalid attempt to instantiate SqlDataRecord with null SmiExtendedMetaData[]");
_columnMetaData = new SqlMetaData[metaData.Length];
_columnSmiMetaData = new SmiExtendedMetaData[metaData.Length];
for (int i = 0; i < _columnSmiMetaData.Length; i++)
{
_columnSmiMetaData[i] = metaData[i];
_columnMetaData[i] = MetaDataUtilsSmi.SmiExtendedMetaDataToSqlMetaData(_columnSmiMetaData[i]);
}
_eventSink = new SmiEventSink_Default();
if (InOutOfProcHelper.InProc)
{
_recordContext = SmiContextFactory.Instance.GetCurrentContext();
}
else
{
_recordContext = null;
}
_recordBuffer = recordBuffer;
_eventSink.ProcessMessagesAndThrow();
}
// UDTs and null variants come back via return value, all else is via targetBuffer.
// implements SqlClient 1.1-compatible output parameter semantics
internal static object GetOutputParameterV200Smi(
SmiEventSink_Default sink, // event sink for errors
SmiTypedGetterSetter getters, // getters interface to grab value from
int ordinal, // parameter within getters
SmiMetaData metaData, // Getter's type for this ordinal
SmiContext context, // used to obtain scratch streams
SqlBuffer targetBuffer // destination
)
{
object result = null; // Workaround for UDT hack in non-Smi code paths.
if (IsDBNull_Unchecked(sink, getters, ordinal))
{
GetNullOutputParameterSmi(metaData, targetBuffer, ref result);
}
else
{
switch (metaData.SqlDbType)
{
// new types go here
case SqlDbType.Variant: // Handle variants specifically for v200, since they could contain v200 types
// For variants, recur using the current value's sqldbtype
metaData = getters.GetVariantType(sink, ordinal);
sink.ProcessMessagesAndThrow();
Debug.Assert(SqlDbType.Variant != metaData.SqlDbType, "Variant-within-variant not supposed to be possible!");
GetOutputParameterV200Smi(sink, getters, ordinal, metaData, context, targetBuffer);
break;
case SqlDbType.Date:
targetBuffer.SetToDate(GetDateTime_Unchecked(sink, getters, ordinal));
break;
case SqlDbType.DateTime2:
targetBuffer.SetToDateTime2(GetDateTime_Unchecked(sink, getters, ordinal), metaData.Scale);
break;
case SqlDbType.Time:
targetBuffer.SetToTime(GetTimeSpan_Unchecked(sink, getters, ordinal), metaData.Scale);
break;
case SqlDbType.DateTimeOffset:
targetBuffer.SetToDateTimeOffset(GetDateTimeOffset_Unchecked(sink, getters, ordinal), metaData.Scale);
break;
default:
result = GetOutputParameterV3Smi(sink, getters, ordinal, metaData, context, targetBuffer);
break;
}
}
return(result);
}
// SqlDataRecord public API
/// <include file='..\..\..\..\..\..\..\..\doc\snippets\Microsoft.Data.SqlClient.Server\SqlDataRecord.xml' path='docs/members[@name="SqlDataRecord"]/ctor/*' />
public SqlDataRecord(params SqlMetaData[] metaData)
{
// Initial consistency check
if (null == metaData)
{
throw ADP.ArgumentNull("metadata");
}
_columnMetaData = new SqlMetaData[metaData.Length];
_columnSmiMetaData = new SmiExtendedMetaData[metaData.Length];
ulong smiVersion = SmiVersion;
for (int i = 0; i < _columnSmiMetaData.Length; i++)
{
if (null == metaData[i])
{
throw ADP.ArgumentNull("metadata[" + i + "]");
}
_columnMetaData[i] = metaData[i];
_columnSmiMetaData[i] = MetaDataUtilsSmi.SqlMetaDataToSmiExtendedMetaData(_columnMetaData[i]);
if (!MetaDataUtilsSmi.IsValidForSmiVersion(_columnSmiMetaData[i], smiVersion))
{
throw ADP.VersionDoesNotSupportDataType(_columnSmiMetaData[i].TypeName);
}
}
_eventSink = new SmiEventSink_Default();
if (InOutOfProcHelper.InProc)
{
_recordContext = SmiContextFactory.Instance.GetCurrentContext();
_recordBuffer = _recordContext.CreateRecordBuffer(_columnSmiMetaData, _eventSink);
_usesStringStorageForXml = false;
}
else
{
_recordContext = null;
_recordBuffer = new MemoryRecordBuffer(_columnSmiMetaData);
_usesStringStorageForXml = true;
}
_eventSink.ProcessMessagesAndThrow();
}
// spool a Stream into a scratch stream from the Smi interface and return it as a SqlStreamChars
internal static SqlStreamChars CopyIntoNewSmiScratchStreamChars(Stream source, SmiEventSink_Default sink, SmiContext context)
{
SqlClientWrapperSmiStreamChars dest = new(sink, context.GetScratchStream(sink));
int chunkSize;
if (source.CanSeek && __maxByteChunkSize > source.Length)
{
chunkSize = unchecked ((int)source.Length); // unchecked cast is safe due to check on line above
}
else
{
chunkSize = __maxByteChunkSize;
}
byte[] copyBuffer = new byte[chunkSize];
int bytesRead;
while (0 != (bytesRead = source.Read(copyBuffer, 0, chunkSize)))
{
dest.Write(copyBuffer, 0, bytesRead);
}
dest.Flush();
// SQLBU 494334
// Need to re-wind scratch stream to beginning before returning
dest.Seek(0, SeekOrigin.Begin);
return(dest);
}
// UDTs and null variants come back via return value, all else is via targetBuffer.
// implements SqlClient 2.0-compatible output parameter semantics
internal static object GetOutputParameterV3Smi(
SmiEventSink_Default sink, // event sink for errors
ITypedGettersV3 getters, // getters interface to grab value from
int ordinal, // parameter within getters
SmiMetaData metaData, // Getter's type for this ordinal
SmiContext context, // used to obtain scratch streams
SqlBuffer targetBuffer // destination
)
{
object result = null; // Workaround for UDT hack in non-Smi code paths.
if (IsDBNull_Unchecked(sink, getters, ordinal))
{
GetNullOutputParameterSmi(metaData, targetBuffer, ref result);
}
else
{
switch (metaData.SqlDbType)
{
case SqlDbType.BigInt:
targetBuffer.Int64 = GetInt64_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.Binary:
case SqlDbType.Image:
case SqlDbType.Timestamp:
case SqlDbType.VarBinary:
targetBuffer.SqlBinary = GetSqlBinary_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.Bit:
targetBuffer.Boolean = GetBoolean_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.NChar:
case SqlDbType.NText:
case SqlDbType.NVarChar:
case SqlDbType.Char:
case SqlDbType.VarChar:
case SqlDbType.Text:
targetBuffer.SetToString(GetString_Unchecked(sink, getters, ordinal));
break;
case SqlDbType.DateTime:
case SqlDbType.SmallDateTime:
{
SqlDateTime dt = new(GetDateTime_Unchecked(sink, getters, ordinal));
targetBuffer.SetToDateTime(dt.DayTicks, dt.TimeTicks);
break;
}
case SqlDbType.Decimal:
{
SqlDecimal dec = GetSqlDecimal_Unchecked(sink, getters, ordinal);
targetBuffer.SetToDecimal(dec.Precision, dec.Scale, dec.IsPositive, dec.Data);
break;
}
case SqlDbType.Float:
targetBuffer.Double = GetDouble_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.Int:
targetBuffer.Int32 = GetInt32_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.Money:
case SqlDbType.SmallMoney:
targetBuffer.SetToMoney(GetInt64_Unchecked(sink, getters, ordinal));
break;
case SqlDbType.Real:
targetBuffer.Single = GetSingle_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.UniqueIdentifier:
targetBuffer.SqlGuid = new SqlGuid(GetGuid_Unchecked(sink, getters, ordinal));
break;
case SqlDbType.SmallInt:
targetBuffer.Int16 = GetInt16_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.TinyInt:
targetBuffer.Byte = GetByte_Unchecked(sink, getters, ordinal);
break;
case SqlDbType.Variant:
// For variants, recur using the current value's sqldbtype
metaData = getters.GetVariantType(sink, ordinal);
sink.ProcessMessagesAndThrow();
Debug.Assert(SqlDbType.Variant != metaData.SqlDbType, "Variant-within-variant not supposed to be possible!");
GetOutputParameterV3Smi(sink, getters, ordinal, metaData, context, targetBuffer);
break;
case SqlDbType.Udt:
result = GetUdt_LengthChecked(sink, getters, ordinal, metaData);
break;
case SqlDbType.Xml:
targetBuffer.SqlXml = GetSqlXml_Unchecked(sink, getters, ordinal, null);
break;
default:
Debug.Assert(false, "Unexpected SqlDbType");
break;
}
}
return(result);
}
