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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
//
// System.Configuration.Provider.ProviderCollection
//
// Authors:
// Ben Maurer (bmaurer@users.sourceforge.net)
//
// (C) 2003 Ben Maurer
//
//
// 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.Collections;
namespace System.Configuration.Provider {
public class ProviderCollection : ICollection
{
public ProviderCollection ()
{
lookup = new Hashtable (10, CaseInsensitiveHashCodeProvider.Default, CaseInsensitiveComparer.Default);
values = new ArrayList ();
}
public virtual void Add (IProvider provider)
{
if (readOnly)
throw new NotSupportedException ();
if (provider == null || provider.Name == null)
throw new ArgumentNullException ();
int pos = values.Add (provider);
try {
lookup.Add (provider.Name, pos);
} catch {
values.RemoveAt (pos);
throw;
}
}
public void Clear ()
{
if (readOnly)
throw new NotSupportedException ();
values.Clear ();
lookup.Clear ();
}
public void CopyTo (Array array, int index)
{
values.CopyTo (array, index);
}
public IEnumerator GetEnumerator ()
{
return values.GetEnumerator();
}
public void Remove (string name)
{
if (readOnly)
throw new NotSupportedException ();
object position = lookup [name];
if (position == null || !(position is int))
throw new ArgumentException ();
int pos = (int) position;
if (pos >= values.Count)
throw new ArgumentException ();
values.RemoveAt (pos);
lookup.Remove (name);
ArrayList changed = new ArrayList ();
foreach (DictionaryEntry de in lookup) {
if ((int) de.Value <= pos)
continue;
changed.Add (de.Key);
}
foreach (string key in changed)
lookup [key] = (int)lookup [key] - 1;
}
public void SetReadOnly ()
{
readOnly = true;
}
public int Count { get { return values.Count; } }
public bool IsSynchronized { get { return false; } }
public object SyncRoot { get { return this; } }
public IProvider this [string name] {
get {
object pos = lookup [name];
if (pos == null) return null;
return values [(int) pos] as IProvider;
}
}
Hashtable lookup;
bool readOnly;
ArrayList values;
}
}
#endif
|