Files
ntpa/MySql/Source/MySql.Data.Entity/MySqlSpatialDataReader.cs
T
2016-03-16 20:08:36 +01:00

103 lines
3.0 KiB
C#

// Copyright © 2013, Oracle and/or its affiliates. All rights reserved.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
// MySQL Connectors. There are special exceptions to the terms and
// conditions of the GPLv2 as it is applied to this software, see the
// FLOSS License Exception
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// This program 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; version 2 of the License.
//
// 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
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MySql.Data.MySqlClient;
using MySql.Data.Types;
using System.Reflection;
#if EF6
using System.Data.Entity.Spatial;
#else
using System.Data.Spatial;
#endif
namespace MySql.Data.Entity
{
internal sealed class MySqlSpatialDataReader : DbSpatialDataReader
{
private readonly EFMySqlDataReader reader;
static MySqlSpatialDataReader()
{
}
public MySqlSpatialDataReader(EFMySqlDataReader underlyingReader)
{
this.reader = underlyingReader;
}
public override DbGeography GetGeography(int ordinal)
{
throw new NotImplementedException();
}
public override DbGeometry GetGeometry(int ordinal)
{
ReturnGeometryColumn(ordinal);
var geometryBytes = this.reader.GetValue(ordinal);
Type t = geometryBytes.GetType();
object geometry = Activator.CreateInstance(t);
var providerValue = new MySqlGeometry();
MySqlGeometry.TryParse(geometryBytes.ToString(), out providerValue);
return MySqlSpatialServices.Instance.GeometryFromProviderValue(providerValue);
}
private void ReturnGeometryColumn(int ordinal)
{
string fieldTypeName = this.reader.GetDataTypeName(ordinal);
if (!fieldTypeName.Equals("Geometry", StringComparison.Ordinal))
{
throw new InvalidOperationException(
string.Format(
"Invalid Geometry type reading operation on type {0}",
fieldTypeName));
}
}
#if EF6
public override bool IsGeographyColumn(int ordinal)
{
//throw new NotImplementedException();
return false;
}
public override bool IsGeometryColumn(int ordinal)
{
//throw new NotImplementedException();
return false;
}
#endif
}
}