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#if MYSQL_6_10
// Copyright ?2004, 2018, 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.Data.Common;
using System.Reflection;
#if !NETSTANDARD1_3
using System.Security.Permissions;
#endif
namespace Externals.MySql.Data.MySqlClient
{
/// <summary>
/// Represents a set of methods for creating instances of the MySQL client implementation of the data source classes.
/// </summary>
#if !NETSTANDARD1_3
[ReflectionPermission(SecurityAction.Assert, MemberAccess = true)]
#endif
internal sealed partial class MySqlClientFactory : DbProviderFactory, IServiceProvider
{
/// <summary>
/// Gets an instance of the <see cref="MySqlClientFactory"/>.
/// This can be used to retrieve strongly typed data objects.
/// </summary>
public static MySqlClientFactory Instance = new MySqlClientFactory();
private Type _dbServicesType;
private FieldInfo _mySqlDbProviderServicesInstance;
/// <summary>
/// Returns a strongly typed <see cref="DbCommand"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbCommand</b>.</returns>
public override DbCommand CreateCommand()
{
return new MySqlCommand();
}
/// <summary>
/// Returns a strongly typed <see cref="DbConnection"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbConnection</b>.</returns>
public override DbConnection CreateConnection()
{
return new MySqlConnection();
}
/// <summary>
/// Returns a strongly typed <see cref="DbParameter"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbParameter</b>.</returns>
public override DbParameter CreateParameter()
{
return new MySqlParameter();
}
/// <summary>
/// Returns a strongly typed <see cref="DbConnectionStringBuilder"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbConnectionStringBuilder</b>.</returns>
public override DbConnectionStringBuilder CreateConnectionStringBuilder()
{
return new MySqlConnectionStringBuilder();
}
#if !NETSTANDARD1_3
/// <summary>
/// Returns a strongly typed <see cref="DbCommandBuilder"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbCommandBuilder</b>.</returns>
public override DbCommandBuilder CreateCommandBuilder()
{
return new MySqlCommandBuilder();
}
/// <summary>
/// Returns a strongly typed <see cref="DbDataAdapter"/> instance.
/// </summary>
/// <returns>A new strongly typed instance of <b>DbDataAdapter</b>.</returns>
public override DbDataAdapter CreateDataAdapter()
{
return new MySqlDataAdapter();
}
#endif
#region IServiceProvider Members
/// <summary>
/// Provide a simple caching layer
/// </summary>
private Type DbServicesType => _dbServicesType ?? (_dbServicesType = Type.GetType(
@"System.Data.Common.DbProviderServices, System.Data.Entity,
Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
false));
private FieldInfo MySqlDbProviderServicesInstance
{
get
{
if (_mySqlDbProviderServicesInstance == null)
{
#if NETSTANDARD1_3
string fullName = typeof(MySqlClientFactory).GetTypeInfo().Assembly.FullName;
#else
string fullName = Assembly.GetExecutingAssembly().FullName;
#endif
string assemblyName = fullName.Replace("Externals.MySql.Data", "Externals.MySql.Data.Entity.EF6");
string assemblyEf5Name = fullName.Replace("Externals.MySql.Data", "Externals.MySql.Data.Entity.EF5");
fullName = $"Externals.MySql.Data.MySqlClient.MySqlProviderServices, {assemblyEf5Name}";
Type providerServicesType = Type.GetType(fullName, false);
if (providerServicesType == null)
{
fullName = $"Externals.MySql.Data.MySqlClient.MySqlProviderServices, {assemblyName}";
providerServicesType = Type.GetType(fullName, false);
if (providerServicesType == null)
throw new DllNotFoundException(fullName);
}
_mySqlDbProviderServicesInstance = providerServicesType.GetField("Instance", BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance);
}
return _mySqlDbProviderServicesInstance;
}
}
object IServiceProvider.GetService(Type serviceType)
{
// DbProviderServices is the only service we offer up right now
return serviceType != DbServicesType ? null : MySqlDbProviderServicesInstance?.GetValue(null);
}
#endregion
}
}
#endif