mcs/class/System/System.Configuration/NameValueFileSectionHandler.cs

   1 //
   2 // System.Configuration.NameValueFileSectionHandler
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2002 Ximian, Inc (http://www.ximian.com)
   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
  31 using System;
  32 using System.Collections.Specialized;
  33 using System.IO;
  34 #if (XML_DEP)
  35 using System.Xml;
  36 #else
  37 using XmlNode = System.Object;
  38 #endif
  39
  40 namespace System.Configuration
  41 {
  42         public class NameValueFileSectionHandler : IConfigurationSectionHandler
  43         {
  44                 public object Create (object parent, object configContext, XmlNode section)
  45                 {
  46 #if (XML_DEP)
  47                         XmlNode file = null;
  48                         if (section.Attributes != null)
  49                                 file = section.Attributes.RemoveNamedItem ("file");
  50
  51                         NameValueCollection pairs = ConfigHelper.GetNameValueCollection (
  52                                                                         parent as NameValueCollection,
  53                                                                         section,
  54                                                                         "key",
  55                                                                         "value");
  56
  57                         if (file != null && file.Value != String.Empty) {
  58                                 string fileName = ((IConfigXmlNode) section).Filename;
  59                                 fileName = Path.GetFullPath (fileName);
  60                                 string fullPath = Path.Combine (Path.GetDirectoryName (fileName), file.Value);
  61                                 if (!File.Exists (fullPath))
  62                                         return pairs;
  63
  64                                 ConfigXmlDocument doc = new ConfigXmlDocument ();
  65                                 doc.Load (fullPath);
  66                                 if (doc.DocumentElement.Name != section.Name)
  67                                         throw new ConfigurationException ("Invalid root element", doc.DocumentElement);
  68
  69                                 pairs = ConfigHelper.GetNameValueCollection (pairs, doc.DocumentElement,
  70                                                                              "key", "value");
  71                         }
  72
  73                         return pairs;
  74 #else
  75                         return null;
  76 #endif
  77                 }
  78         }
  79 }
  80