Merge pull request #900 from Blewzman/FixAggregateExceptionGetBaseException
[mono.git] / mcs / class / System.Net.Http / System.Net.Http.Headers / TransferCodingWithQualityHeaderValue.cs
1 //
2 // TransferCodingWithQualityHeaderValue.cs
3 //
4 // Authors:
5 //      Marek Safar  <marek.safar@gmail.com>
6 //
7 // Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
8 //
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
16 //
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
19 //
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 //
28
29 using System.Collections.Generic;
30
31 namespace System.Net.Http.Headers
32 {
33         public sealed class TransferCodingWithQualityHeaderValue : TransferCodingHeaderValue
34         {
35                 public TransferCodingWithQualityHeaderValue (string value)
36                         : base (value)
37                 {
38                 }
39
40                 public TransferCodingWithQualityHeaderValue (string value, double quality)
41                         : this (value)
42                 {
43                         Quality = quality;
44                 }
45
46                 private TransferCodingWithQualityHeaderValue ()
47                 {
48                 }
49
50                 public double? Quality {
51                         get {
52                                 return QualityValue.GetValue (parameters);
53                         }
54                         set {
55                                 QualityValue.SetValue (ref parameters, value);
56                         }
57                 }
58
59                 public new static TransferCodingWithQualityHeaderValue Parse (string input)
60                 {
61                         TransferCodingWithQualityHeaderValue value;
62                         if (TryParse (input, out value))
63                                 return value;
64
65                         throw new FormatException ();
66                 }
67
68                 public static bool TryParse (string input, out TransferCodingWithQualityHeaderValue parsedValue)
69                 {
70                         var lexer = new Lexer (input);
71                         Token token;
72                         if (TryParseElement (lexer, out parsedValue, out token) && token == Token.Type.End)
73                                 return true;
74
75                         parsedValue = null;
76                         return false;
77                 }
78
79                 internal static bool TryParse (string input, int minimalCount, out List<TransferCodingWithQualityHeaderValue> result)
80                 {
81                         return CollectionParser.TryParse (input, minimalCount, TryParseElement, out result);
82                 }
83
84                 static bool TryParseElement (Lexer lexer, out TransferCodingWithQualityHeaderValue parsedValue, out Token t)
85                 {
86                         parsedValue = null;
87
88                         t = lexer.Scan ();
89                         if (t != Token.Type.Token)
90                                 return false;
91
92                         var result = new TransferCodingWithQualityHeaderValue ();
93                         result.value = lexer.GetStringValue (t);
94
95                         t = lexer.Scan ();
96
97                         // Parameters parsing
98                         if (t == Token.Type.SeparatorSemicolon && (!NameValueHeaderValue.TryParseParameters (lexer, out result.parameters, out t) || t != Token.Type.End))
99                                 return false;
100
101                         parsedValue = result;
102                         return true;
103                 }
104         }
105 }