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//
// System.Web.Configuration.ProvidersHelper
//
// Authors:
// Chris Toshok (toshok@ximian.com)
//
// (C) 2005 Novell, Inc (http://www.novell.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#if NET_2_0
using System;
using System.Collections;
using System.Configuration;
using System.Configuration.Provider;
using System.Data.Common;
using System.Data.SqlClient;
using System.IO;
using System.Reflection;
using System.Web;
using System.Web.Compilation;
namespace System.Web.Configuration {
public static class ProvidersHelper
{
public static ProviderBase InstantiateProvider (ProviderSettings providerSettings, Type providerType)
{
Type settingsType = HttpApplication.LoadType (providerSettings.Type);
if (settingsType == null)
settingsType = HttpApplication.LoadTypeFromBin (providerSettings.Type);
// check App_Code dlls
if (settingsType == null) {
IList appCode = BuildManager.CodeAssemblies;
if (appCode != null && appCode.Count > 0) {
Assembly asm;
foreach (object o in appCode) {
asm = o as Assembly;
if (asm == null)
continue;
settingsType = asm.GetType (providerSettings.Type);
if (settingsType != null)
break;
}
}
}
if (settingsType == null)
throw new ConfigurationErrorsException (String.Format ("Could not find type: {0}",
providerSettings.Type));
if (!providerType.IsAssignableFrom (settingsType))
throw new ConfigurationErrorsException (String.Format ("Provider '{0}' must subclass from '{1}'",
providerSettings.Name, providerType));
ProviderBase provider = Activator.CreateInstance (settingsType) as ProviderBase;
provider.Initialize (providerSettings.Name, providerSettings.Parameters);
return provider;
}
public static void InstantiateProviders (ProviderSettingsCollection configProviders, ProviderCollection providers, Type providerType)
{
if (!typeof (ProviderBase).IsAssignableFrom (providerType))
throw new ConfigurationErrorsException (String.Format ("type '{0}' must subclass from ProviderBase", providerType));
foreach (ProviderSettings settings in configProviders)
providers.Add (InstantiateProvider (settings, providerType));
}
internal static DbProviderFactory GetDbProviderFactory (string providerName)
{
DbProviderFactory f = null;
if (providerName != null && providerName != "") {
try {
f = DbProviderFactories.GetFactory(providerName);
}
catch (Exception e) { Console.WriteLine (e); /* nada */ }
if (f != null)
return f;
}
return SqlClientFactory.Instance;
}
}
}
#endif
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