/// <summary>
/// Asynchronously populates instance of SqlResults using rows from SqlDataReader.
/// </summary>
/// <param name="reader">SqlDataReader whose rows are to be read.</param>
/// <returns>A task to await read completion</returns>
internal async Task FetchAsync(SqlDataReader reader)
{
Func <Action, Task> ReadAsync = async(readAction) =>
{
while (await reader.ReadAsync())
{
readAction();
}
};
do
{
if (reader.FieldCount > 0)
{
SqlResultType resultType = SqlResults.SqlResultTypeFromColumnName(reader.GetSchemaTable().Rows[1]["ColumnName"].ToString());
switch (resultType)
{
case SqlResultType.ShardMap:
await ReadAsync(() => _ssm.Add(new SqlShardMap(reader, 1)));
break;
case SqlResultType.Shard:
await ReadAsync(() => _ss.Add(new SqlShard(reader, 1)));
break;
case SqlResultType.ShardMapping:
await ReadAsync(() => _sm.Add(new SqlMapping(reader, 1)));
break;
case SqlResultType.ShardLocation:
await ReadAsync(() => _sl.Add(new SqlLocation(reader, 1)));
break;
case SqlResultType.SchemaInfo:
await ReadAsync(() => _si.Add(new SqlSchemaInfo(reader, 1)));
break;
case SqlResultType.StoreVersion:
await ReadAsync(() => _version = new SqlVersion(reader, 1));
break;
case SqlResultType.Operation:
await ReadAsync(() => _ops.Add(new SqlLogEntry(reader, 1)));
break;
default:
// This code is unreachable, since the all values of the SqlResultType enum are explicitly handled above.
Debug.Assert(false);
break;
}
}
}while (await reader.NextResultAsync());
}
/// <summary>
/// Populates instance of SqlResults using rows from SqlDataReader.
/// </summary>
/// <param name="reader">SqlDataReader whose rows are to be read.</param>
internal void Fetch(SqlDataReader reader)
{
do
{
if (reader.FieldCount > 0)
{
SqlResultType resultType = SqlResults.SqlResultTypeFromColumnName(reader.GetSchemaTable().Rows[1]["ColumnName"].ToString());
switch (resultType)
{
case SqlResultType.ShardMap:
while (reader.Read())
{
_ssm.Add(new SqlShardMap(reader, 1));
}
break;
case SqlResultType.Shard:
while (reader.Read())
{
_ss.Add(new SqlShard(reader, 1));
}
break;
case SqlResultType.ShardMapping:
while (reader.Read())
{
_sm.Add(new SqlMapping(reader, 1));
}
break;
case SqlResultType.ShardLocation:
while (reader.Read())
{
_sl.Add(new SqlLocation(reader, 1));
}
break;
case SqlResultType.SchemaInfo:
while (reader.Read())
{
_si.Add(new SqlSchemaInfo(reader, 1));
}
break;
case SqlResultType.StoreVersion:
while (reader.Read())
{
_version = new SqlVersion(reader, 1);
}
break;
case SqlResultType.Operation:
while (reader.Read())
{
_ops.Add(new SqlLogEntry(reader, 1));
}
break;
default:
// This code is unreachable, since the all values of the SqlResultType enum are explicitly handled above.
Debug.Assert(false);
break;
}
}
}while (reader.NextResult());
}
