File: MySqlConnectionSupport.cs

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// Copyright © 2008, 2010, 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

/*
 * This file contains implementation of custom connection support for MySQL.
 */

using System;
using System.Data;
using System.Data.Common;
using System.Diagnostics;
using System.Reflection;
using Microsoft.VisualStudio.Data;
using Microsoft.VisualStudio.Data.AdoDotNet;
using System.Globalization;
using MySql.Data.VisualStudio.Properties;
using System.Text;
using System.Windows.Forms;


namespace MySql.Data.VisualStudio
{
    public class MySqlConnectionSupport : AdoDotNetConnectionSupport
    {
        private MySqlDataSourceInformation sourceInformation = null;

        public MySqlConnectionSupport()
            : base(MySqlConnectionProperties.InvariantName) 
		{
		} 

        /// <summary>
        /// Retrieves a service of the specified type. Following services are 
        /// supported:
        /// DataViewSupport � information about view schema.
        /// DataObjectSupport � information about object model.
        /// </summary>
        /// <param name="serviceType">A service type.</param>
        /// <returns>
        /// Returns the service of the specified type, or returns a null reference 
        /// if no service was found. 
        /// </returns>
        protected override object GetServiceImpl(Type serviceType)
        {
            if (serviceType == typeof(DataViewSupport))
            {
                return new MySqlDataViewSupport();
            }
            else if (serviceType == typeof(DataObjectSupport))
            {
                return new MySqlDataObjectSupport();
            }
            else if (serviceType == typeof(DataSourceInformation))
            {
                return new MySqlDataSourceInformation(Site as DataConnection);
            }
            else if (serviceType == typeof(DataObjectIdentifierConverter))
                return new MySqlDataObjectIdentifierConverter(Site as DataConnection);
            else 
                return base.GetServiceImpl(serviceType);
        }

        public override bool Open(bool doPromptCheck)
        {
            // Open connection
            try
            {
                // Call base method first
                if (!base.Open(doPromptCheck))
                    return false;
            }
            catch (DbException)
            {
                // If can't prompt user for new authentication data, re-throw exception
                if (!doPromptCheck)
                    throw;

                // Else return false to display prompt dialog
                return false;
            }

            // TODO: check server version compatibility

            // Rreturn true if everything is ok
            if (sourceInformation != null)
                sourceInformation.Refresh();
            return true;
        }
    }
}