1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
//------------------------------------------------------------------------------
// <copyright file="DynamicModuleRegistry.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web {
using System;
using System.Collections.Generic;
using System.Globalization;
internal sealed class DynamicModuleRegistry {
private const string _moduleNameFormat = "__DynamicModule_{0}_{1}";
private readonly List<DynamicModuleRegistryEntry> _entries = new List<DynamicModuleRegistryEntry>();
private bool _entriesReadonly;
private readonly object _lockObj = new object();
public void Add(Type moduleType) {
if (moduleType == null) {
throw new ArgumentNullException("moduleType");
}
if (!typeof(IHttpModule).IsAssignableFrom(moduleType)) {
string message = String.Format(CultureInfo.CurrentCulture, SR.GetString(SR.DynamicModuleRegistry_TypeIsNotIHttpModule), moduleType);
throw new ArgumentException(message, "moduleType");
}
lock (_lockObj) {
if (_entriesReadonly) {
// modules have already been initialized, e.g. Application_Start has already run
throw new InvalidOperationException(SR.GetString(SR.DynamicModuleRegistry_ModulesAlreadyInitialized));
}
_entries.Add(new DynamicModuleRegistryEntry(MakeUniqueModuleName(moduleType), moduleType.AssemblyQualifiedName));
}
}
public ICollection<DynamicModuleRegistryEntry> LockAndFetchList() {
lock (_lockObj) {
// once the list has been returned, it must be immutable
_entriesReadonly = true;
return _entries;
}
}
private static string MakeUniqueModuleName(Type moduleType) {
// returns a unique name for this module
return String.Format(CultureInfo.InvariantCulture, _moduleNameFormat, moduleType.AssemblyQualifiedName, Guid.NewGuid());
}
}
internal struct DynamicModuleRegistryEntry {
public readonly string Name;
public readonly string Type;
public DynamicModuleRegistryEntry(string name, string type) {
Name = name;
Type = type;
}
}
}
|
