//
// Author:
// Tim Coleman (tim@timcoleman.com)
-//
+// Veerapuram Varadhan (vvaradhan@novell.com)
// Copyright (C) 2002 Tim Coleman
+// Copyright (C) 2008,2009 Novell Inc.
+//
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using Mono.Data.Tds;
using System;
namespace Mono.Data.Tds.Protocol {
- public class Tds80 : Tds
+ public class Tds80 : Tds70
{
#region Fields
#endregion // Constructors
+ #region Properties
+
+ protected override byte[] ClientVersion {
+ get { return new byte[] {0x00, 0x0, 0x0, 0x71};}
+ }
+ #endregion // Properties
+
#region Methods
public override bool Connect (TdsConnectionParameters connectionParameters)
{
- throw new NotImplementedException ();
+ return base.Connect (connectionParameters);
}
protected override TdsDataColumnCollection ProcessColumnInfo ()
{
- throw new NotImplementedException ();
+ // VARADHAN: TDS 8 Debugging
+ //Console.WriteLine ("Tds80.cs: In ProcessColumnInfo... entry");
+ TdsDataColumnCollection result = new TdsDataColumnCollection ();
+ int numColumns = Comm.GetTdsShort ();
+ //Console.WriteLine ("Column count={0}", numColumns); TDS 8 Debugging
+ for (int i = 0; i < numColumns; i += 1) {
+ byte[] flagData = new byte[4];
+ for (int j = 0; j < 4; j += 1)
+ flagData[j] = Comm.GetByte ();
+
+ bool nullable = (flagData[2] & 0x01) > 0;
+ //bool caseSensitive = (flagData[2] & 0x02) > 0;
+ bool writable = (flagData[2] & 0x0c) > 0;
+ bool autoIncrement = (flagData[2] & 0x10) > 0;
+ bool isIdentity = (flagData[2] & 0x10) > 0;
+
+ TdsColumnType columnType = (TdsColumnType) (Comm.GetByte () & 0xff);
+ //Console.WriteLine ("Actual ColumnType: {0}", columnType); TDS 8 Debugging
+
+ if ((byte) columnType == 0xef)
+ columnType = TdsColumnType.NChar;
+
+ TdsColumnType xColumnType = columnType;
+ if (IsLargeType (columnType)) {
+ if (columnType != TdsColumnType.NChar)
+ columnType -= 128;
+ }
+
+ int columnSize;
+ string tableName = null;
+ byte[] collation = null;
+
+ if (IsBlobType (columnType)) {
+ columnSize = Comm.GetTdsInt ();
+ } else if (IsFixedSizeColumn (columnType)) {
+ columnSize = LookupBufferSize (columnType);
+ } else if (IsLargeType (xColumnType)) {
+ columnSize = Comm.GetTdsShort ();
+ } else {
+ columnSize = Comm.GetByte () & 0xff;
+ }
+
+ if (xColumnType == TdsColumnType.BigChar || xColumnType == TdsColumnType.BigNVarChar ||
+ xColumnType == TdsColumnType.BigVarChar || xColumnType == TdsColumnType.NChar ||
+ xColumnType == TdsColumnType.NVarChar || xColumnType == TdsColumnType.Text ||
+ xColumnType == TdsColumnType.NText) {
+ // Read collation for SqlServer 2000 and beyond
+ collation = Comm.GetBytes (5, true);
+ }
+
+ if (IsBlobType (columnType)) {
+ tableName = Comm.GetString (Comm.GetTdsShort ());
+ //Console.WriteLine ("Tablename: "+tableName); TDS 8 Debugging
+ }
+
+ byte precision = 0;
+ byte scale = 0;
+
+ switch (columnType) {
+ case TdsColumnType.NText:
+ case TdsColumnType.NChar:
+ case TdsColumnType.NVarChar:
+ columnSize /= 2;
+ break;
+ case TdsColumnType.Decimal:
+ case TdsColumnType.Numeric:
+ //Comm.Skip (1);
+ precision = Comm.GetByte ();
+ //Console.WriteLine ("Precision: {0}", precision); TDS 8 Debugging
+ scale = Comm.GetByte ();
+ //Console.WriteLine ("Scale: {0}", scale); TDS 8 Debugging
+ break;
+ }
+
+ string columnName = Comm.GetString (Comm.GetByte ());
+
+ TdsDataColumn col = new TdsDataColumn ();
+ result.Add (col);
+#if NET_2_0
+ col.ColumnType = columnType;
+ col.ColumnName = columnName;
+ col.IsAutoIncrement = autoIncrement;
+ col.IsIdentity = isIdentity;
+ col.ColumnSize = columnSize;
+ col.NumericPrecision = precision;
+ col.NumericScale = scale;
+ col.IsReadOnly = !writable;
+ col.AllowDBNull = nullable;
+ col.BaseTableName = tableName;
+#else
+ col ["ColumnType"] = columnType;
+ col ["ColumnName"] = columnName;
+ col ["IsAutoIncrement"] = autoIncrement;
+ col ["IsIdentity"] = isIdentity;
+ col ["ColumnSize"] = columnSize;
+ col ["NumericPrecision"] = precision;
+ col ["NumericScale"] = scale;
+ col ["IsReadOnly"] = !writable;
+ col ["AllowDBNull"] = nullable;
+ col ["BaseTableName"] = tableName;
+#endif
+ }
+ //Console.WriteLine ("Tds80.cs: In ProcessColumnInfo... exit"); TDS 8 Debugging
+ return result;
}
+ protected override void ProcessOutputParam ()
+ {
+ GetSubPacketLength ();
+
+ Comm.Skip ((Comm.GetByte () & 0xff) <<1); // Parameter name
+ Comm.Skip (1); // Status: 0x01 - in case of OUTPUT parameter
+ // Status: 0x02 - in case of return value of UDF
+ Comm.Skip (4); // Usertype - sizeof (ULong)
+
+ TdsColumnType colType = (TdsColumnType) Comm.GetByte ();
+ object value = GetColumnValue (colType, true);
+ OutputParameters.Add (value);
+ }
+
#endregion // Methods
}
}
projects / mono.git / blobdiff