/********************************************************
* ADO.NET 2.0 Data Provider for SQLite Version 3.X
* Written by Robert Simpson (robert@blackcastlesoft.com)
*
* Released to the public domain, use at your own risk!
********************************************************/
namespace System.Data.SQLite
{
using System;
using System.Data.Common;
using System.Reflection;
using System.Security.Permissions;
/// <summary>
/// SQLite implementation of DbProviderFactory.
/// </summary>
public sealed partial class SQLiteFactory : IServiceProvider
{
private static Type _dbProviderServicesType;
private static object _sqliteServices;
static SQLiteFactory()
{
_dbProviderServicesType = Type.GetType("System.Data.Common.DbProviderServices, System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false);
}
/// <summary>
/// Will provide a DbProviderServices object in .NET 3.5
/// </summary>
/// <param name="serviceType">The class or interface type to query for</param>
/// <returns></returns>
object IServiceProvider.GetService(Type serviceType)
{
if (serviceType == typeof(ISQLiteSchemaExtensions) ||
(_dbProviderServicesType != null && serviceType == _dbProviderServicesType))
{
return GetSQLiteProviderServicesInstance();
}
return null;
}
[ReflectionPermission(SecurityAction.Assert, MemberAccess = true)]
private object GetSQLiteProviderServicesInstance()
{
if (_sqliteServices == null)
{
Type type = Type.GetType("System.Data.SQLite.SQLiteProviderServices, System.Data.SQLite.Linq, Version=1.0.73.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139", false);
if (type != null)
{
FieldInfo field = type.GetField("Instance", BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance);
_sqliteServices = field.GetValue(null);
}
}
return _sqliteServices;
}
}
}