// Copyright (c) 2004-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc. // // 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 #if MYSQL_6_9 using System.Data.Common; using System; using System.Reflection; using System.Security.Permissions; using System.Security; namespace Externals.MySql.Data.MySqlClient { /// <summary> /// DBProviderFactory implementation for MysqlClient. /// </summary> [ReflectionPermission(SecurityAction.Assert, MemberAccess = true)] internal sealed 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="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="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="DbDataAdapter"/> instance. /// </summary> /// <returns>A new strongly typed instance of <b>DbDataAdapter</b>. </returns> public override DbDataAdapter CreateDataAdapter() { return new MySqlDataAdapter(); } /// <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(); } /// <summary> /// Returns true if a <b>MySqlDataSourceEnumerator</b> can be created; /// otherwise false. /// </summary> public override bool CanCreateDataSourceEnumerator { get { return false; } } #region IServiceProvider Members /// <summary> /// Provide a simple caching layer /// </summary> private Type DbServicesType { get { if (dbServicesType == null) { // Get the type this way so we don't have to reference System.Data.Entity // from our core provider dbServicesType = Type.GetType( @"System.Data.Common.DbProviderServices, System.Data.Entity, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false); } return dbServicesType; } } private FieldInfo MySqlDbProviderServicesInstance { get { if (mySqlDbProviderServicesInstance == null) { string fullName = Assembly.GetExecutingAssembly().FullName; string assemblyName = fullName.Replace("Externals.MySql.Data", "Externals.MySql.Data.Entity"); string assemblyEf5Name = fullName.Replace("Externals.MySql.Data", "Externals.MySql.Data.Entity.EF5"); fullName = String.Format("Externals.MySql.Data.MySqlClient.MySqlProviderServices, {0}", assemblyEf5Name); Type providerServicesType = Type.GetType(fullName, false); if (providerServicesType == null) { fullName = String.Format("Externals.MySql.Data.MySqlClient.MySqlProviderServices, {0}", 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 if (serviceType != DbServicesType) return null; if (MySqlDbProviderServicesInstance == null) return null; return MySqlDbProviderServicesInstance.GetValue(null); } #endregion } } #endif