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//
// This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
// project.
//
// Copyright (C) 1998-2024 OpenLink Software
//
// This project is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation; only version 2 of the License, dated June 1991.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
//
//
//
// $Id$
//
using System;
using System.Xml;
using System.Diagnostics;
using System.Text;
#if ODBC_CLIENT
namespace OpenLink.Data.VirtuosoOdbcClient
#elif CLIENT
namespace OpenLink.Data.VirtuosoClient
#else
namespace OpenLink.Data.Virtuoso
#endif
{
/// <summary>
/// Summary description for SqlXml.
/// </summary>
public sealed class SqlXml : IMarshal
{
private string m_string;
private XmlReader m_reader;
internal static TraceSwitch Switch = new TraceSwitch("SqlXml", "SqlXml support");
public SqlXml (XmlReader x)
{
Debug.WriteLineIf (CLI.FnTrace.Enabled, "SqlXml.ctor (XmlReader)");
m_reader = x;
m_string = null;
}
public SqlXml (String s)
{
Debug.WriteLineIf (CLI.FnTrace.Enabled, "SqlXml.ctor (String)");
m_reader = null;
m_string = s;
}
public override string ToString()
{
Debug.WriteLineIf (CLI.FnTrace.Enabled, "SqlXml.ToString ()");
if (m_string != null)
return m_string;
else
{
StringBuilder bld = new StringBuilder ();
while (m_reader.Read())
{
bld.Append (m_reader.ReadOuterXml ());
}
return bld.ToString ();
}
}
public XmlReader CreateReader ()
{
Debug.WriteLineIf (CLI.FnTrace.Enabled, "SqlXml.CreateReader ()");
if (m_reader != null)
return m_reader;
else
return new XmlTextReader (
m_string,
XmlNodeType.Element,
new XmlParserContext (
null, // NameTable
null, // NamespaceManager
null, // xml:lang
XmlSpace.None)
);
}
#region IMarshal implementation
public void Marshal(System.IO.Stream stream)
{ /* marshal it as DV_WIDE */
String str = ToString ();
byte [] bytes = Encoding.UTF8.GetBytes (str);
if (bytes.Length < 256)
{
stream.WriteByte ((byte) BoxTag.DV_WIDE);
stream.WriteByte ((byte) bytes.Length);
}
else
{
stream.WriteByte ((byte) BoxTag.DV_LONG_WIDE);
Marshaler.MarshalLongInt (stream, bytes.Length);
}
stream.Write (bytes, 0, bytes.Length);
}
#endregion
}
}
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