mcs/class/System.Web/System.Web.Compilation/AppResourceFilesCollection.cs

   1 //
   2 // System.Web.Compilation.AppResourceFilesCollection
   3 //
   4 // Authors:
   5 //   Marek Habersack (grendello@gmail.com)
   6 //
   7 // (C) 2006 Marek Habersack
   8 //
   9
  10 //
  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:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  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.
  29 //
  30 #if NET_2_0
  31 using System;
  32 using System.Collections.Generic;
  33 using System.Globalization;
  34 using System.IO;
  35
  36 namespace System.Web.Compilation
  37 {
  38         internal enum AppResourceFileKind
  39         {
  40                 NotResource,
  41                 ResX,
  42                 Resource,
  43                 Binary
  44         };
  45
  46         internal class AppResourcesLengthComparer<T>: IComparer<T>
  47         {
  48                 private int CompareStrings (string a, string b)
  49                 {
  50                         if (a == null || b == null)
  51                                 return 0;
  52                         return (int)b.Length - (int)a.Length;
  53                 }
  54
  55                 int IComparer<T>.Compare (T _a, T _b)
  56                 {
  57                         string a = null, b = null;
  58                         if (_a is string && _b is string) {
  59                                 a = _a as string;
  60                                 b = _b as string;
  61                         } else if (_a is List<string> && _b is List<string>) {
  62                                 List<string> tmp = _a as List<string>;
  63                                 a = tmp [0];
  64                                 tmp = _b as List<string>;
  65                                 b = tmp [0];
  66                         } else if (_a is AppResourceFileInfo && _b is AppResourceFileInfo) {
  67                                 AppResourceFileInfo tmp = _a as AppResourceFileInfo;
  68                                 a = tmp.Info.Name;
  69                                 tmp = _b as AppResourceFileInfo;
  70                                 b = tmp.Info.Name;
  71                         } else
  72                                 return 0;
  73                         return CompareStrings (a, b);
  74                 }
  75         }
  76
  77         internal class AppResourceFilesCollection
  78         {
  79                 List <AppResourceFileInfo> files;
  80                 bool isGlobal;
  81                 string sourceDir;
  82
  83                 public string SourceDir {
  84                         get { return sourceDir; }
  85                 }
  86
  87                 public bool HasFiles {
  88                         get {
  89                                 if (String.IsNullOrEmpty (sourceDir))
  90                                         return false;
  91                                 return files.Count > 0;
  92                         }
  93                 }
  94
  95                 public List <AppResourceFileInfo> Files {
  96                         get { return files; }
  97                 }
  98
  99                 public AppResourceFilesCollection (HttpContext context, bool isGlobal)
 100                 {
 101                         if (context == null)
 102                                 throw new ArgumentNullException ("context");
 103
 104                         //this.context = context;
 105                         this.isGlobal = isGlobal;
 106                         this.files = new List <AppResourceFileInfo> ();
 107
 108                         string resourcePath;
 109                         if (isGlobal)
 110                                 resourcePath = Path.Combine (HttpRuntime.AppDomainAppPath, "App_GlobalResources");
 111                         else {
 112                                 HttpRequest request = context.Request;
 113                                 resourcePath = Path.Combine (
 114                                         Path.GetDirectoryName (request.MapPath (request.CurrentExecutionFilePath)),
 115                                         "App_LocalResources");
 116                         }
 117                         if (Directory.Exists (resourcePath))
 118                                 sourceDir = resourcePath;
 119                 }
 120
 121                 public void Collect ()
 122                 {
 123                         if (String.IsNullOrEmpty (sourceDir))
 124                             return;
 125                         DirectoryInfo di = new DirectoryInfo (sourceDir);
 126                         FileInfo[] infos = di.GetFiles ();
 127                         if (infos.Length == 0)
 128                                 return;
 129
 130                         string extension;
 131                         AppResourceFileInfo arfi;
 132                         AppResourceFileKind kind;
 133
 134                         foreach (FileInfo fi in infos) {
 135                                 extension = fi.Extension;
 136                                 if (Acceptable (extension, out kind))
 137                                         arfi = new AppResourceFileInfo (fi, kind);
 138                                 else
 139                                         continue;
 140
 141                                 files.Add (arfi);
 142                         }
 143
 144                         if (isGlobal && files.Count == 0)
 145                                 return;
 146                         AppResourcesLengthComparer<AppResourceFileInfo> lcFiles = new AppResourcesLengthComparer<AppResourceFileInfo> ();
 147                         files.Sort (lcFiles);
 148                 }
 149
 150                 bool Acceptable (string extension, out AppResourceFileKind kind)
 151                 {
 152                         switch (extension.ToLower (CultureInfo.InvariantCulture))
 153                         {
 154                                 default:
 155                                         kind = AppResourceFileKind.NotResource;
 156                                         return false;
 157
 158                                 case ".resx":
 159                                         kind = AppResourceFileKind.ResX;
 160                                         return true;
 161
 162                                 case ".resource":
 163                                         kind = AppResourceFileKind.Resource;
 164                                         return true;
 165                         }
 166                 }
 167         };
 168 };
 169 #endif