2 // System.Web.Configuration.ProvidersHelper
5 // Chris Toshok (toshok@ximian.com)
7 // (C) 2005 Novell, Inc (http://www.novell.com)
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using System.Collections;
34 using System.Configuration;
35 using System.Configuration.Provider;
36 using System.Data.Common;
37 using System.Data.SqlClient;
39 using System.Reflection;
41 using System.Web.Compilation;
43 namespace System.Web.Configuration {
45 public static class ProvidersHelper
47 public static ProviderBase InstantiateProvider (ProviderSettings providerSettings, Type providerType)
49 Type settingsType = Type.GetType (providerSettings.Type);
51 if (settingsType == null)
52 settingsType = HttpApplication.LoadTypeFromPrivateBin (providerSettings.Type);
54 // check App_Code dlls
55 if (settingsType == null) {
56 IList appCode = BuildManager.CodeAssemblies;
58 if (appCode != null && appCode.Count > 0) {
60 foreach (object o in appCode) {
64 settingsType = asm.GetType (providerSettings.Type);
65 if (settingsType != null)
71 if (settingsType == null)
72 throw new ConfigurationErrorsException (String.Format ("Could not find type: {0}",
73 providerSettings.Type));
74 if (!providerType.IsAssignableFrom (settingsType))
75 throw new ConfigurationErrorsException (String.Format ("Provider '{0}' must subclass from '{1}'",
76 providerSettings.Name, providerType));
78 ProviderBase provider = Activator.CreateInstance (settingsType) as ProviderBase;
80 provider.Initialize (providerSettings.Name, providerSettings.Parameters);
85 public static void InstantiateProviders (ProviderSettingsCollection configProviders, ProviderCollection providers, Type providerType)
87 if (!typeof (ProviderBase).IsAssignableFrom (providerType))
88 throw new ConfigurationErrorsException (String.Format ("type '{0}' must subclass from ProviderBase", providerType));
90 foreach (ProviderSettings settings in configProviders)
91 providers.Add (InstantiateProvider (settings, providerType));
94 internal static DbProviderFactory GetDbProviderFactory (string providerName)
96 DbProviderFactory f = null;
98 if (providerName != null && providerName != "") {
100 f = DbProviderFactories.GetFactory(providerName);
102 catch (Exception e) { Console.WriteLine (e); /* nada */ }
107 return SqlClientFactory.Instance;