2 // WarningHeaderValue.cs
5 // Marek Safar <marek.safar@gmail.com>
7 // Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
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:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
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.
29 using System.Globalization;
30 using System.Collections.Generic;
32 namespace System.Net.Http.Headers
34 public class WarningHeaderValue : ICloneable
36 public WarningHeaderValue (int code, string agent, string text)
38 if (!IsCodeValid (code))
39 throw new ArgumentOutOfRangeException ("code");
41 Parser.Uri.Check (agent);
42 Parser.Token.CheckQuotedString (text);
49 public WarningHeaderValue (int code, string agent, string text, DateTimeOffset date)
50 : this (code, agent, text)
55 private WarningHeaderValue ()
59 public string Agent { get; private set; }
60 public int Code { get; private set; }
61 public DateTimeOffset? Date { get; private set; }
62 public string Text { get; private set; }
64 static bool IsCodeValid (int code)
66 return code >= 0 && code < 1000;
69 object ICloneable.Clone ()
71 return MemberwiseClone ();
74 public override bool Equals (object obj)
76 var source = obj as WarningHeaderValue;
80 return Code == source.Code &&
81 string.Equals (source.Agent, Agent, StringComparison.OrdinalIgnoreCase) &&
82 Text == source.Text &&
86 public override int GetHashCode ()
88 int hc = Code.GetHashCode ();
89 hc ^= Agent.ToLowerInvariant ().GetHashCode ();
90 hc ^= Text.GetHashCode ();
91 hc ^= Date.GetHashCode ();
96 public static WarningHeaderValue Parse (string input)
98 WarningHeaderValue value;
99 if (TryParse (input, out value))
102 throw new FormatException (input);
105 public static bool TryParse (string input, out WarningHeaderValue parsedValue)
107 var lexer = new Lexer (input);
109 if (TryParseElement (lexer, out parsedValue, out token) && token == Token.Type.End)
116 internal static bool TryParse (string input, int minimalCount, out List<WarningHeaderValue> result)
118 return CollectionParser.TryParse (input, minimalCount, TryParseElement, out result);
121 static bool TryParseElement (Lexer lexer, out WarningHeaderValue parsedValue, out Token t)
127 if (t != Token.Type.Token)
131 if (!lexer.TryGetNumericValue (t, out code) || !IsCodeValid (code))
135 if (t != Token.Type.Token)
139 if (lexer.PeekChar () == ':') {
142 next = lexer.Scan ();
143 if (next != Token.Type.Token)
147 var value = new WarningHeaderValue ();
149 value.Agent = lexer.GetStringValue (t, next);
152 if (t != Token.Type.QuotedString)
155 value.Text = lexer.GetStringValue (t);
158 if (t == Token.Type.QuotedString) {
160 if (!lexer.TryGetDateValue (t, out date))
171 public override string ToString ()
173 string s = Code.ToString ("000") + " " + Agent + " " + Text;
175 s = s + " \"" + Date.Value.ToString ("r", CultureInfo.InvariantCulture) + "\"";