mcs/class/System.Security/System.Security.Cryptography.Xml/Transform.cs

   1 //
   2 // Transform.cs - Transform implementation for XML Signature
   3 //
   4 // Author:
   5 //      Sebastien Pouliot <sebastien@ximian.com>
   6 //
   7 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
   8 // (C) 2004 Novell (http://www.novell.com)
   9 //
  10
  11 using System.Runtime.InteropServices;
  12 using System.Xml;
  13
  14 namespace System.Security.Cryptography.Xml {
  15
  16         public abstract class Transform {
  17
  18                 private string algo;
  19
  20                 public Transform () {}
  21
  22                 public string Algorithm {
  23                         get { return algo; }
  24                         set { algo = value; }
  25                 }
  26
  27                 public abstract Type[] InputTypes {
  28                         get;
  29                 }
  30
  31                 public abstract Type[] OutputTypes {
  32                         get;
  33                 }
  34
  35                 protected abstract XmlNodeList GetInnerXml ();
  36
  37                 public abstract object GetOutput ();
  38
  39                 public abstract object GetOutput (Type type);
  40
  41                 public XmlElement GetXml ()
  42                 {
  43                         XmlDocument document = new XmlDocument ();
  44                         XmlElement xel = document.CreateElement (XmlSignature.ElementNames.Transform, XmlSignature.NamespaceURI);
  45                         xel.SetAttribute (XmlSignature.AttributeNames.Algorithm, algo);
  46                         XmlNodeList xnl = this.GetInnerXml ();
  47                         if (xnl != null) {
  48                                 foreach (XmlNode xn in xnl) {
  49                                         XmlNode importedNode = document.ImportNode (xn, true);
  50                                         xel.AppendChild (importedNode);
  51                                 }
  52                         }
  53                         return xel;
  54                 }
  55
  56                 public abstract void LoadInnerXml (XmlNodeList nodeList);
  57
  58                 public abstract void LoadInput (object obj);
  59
  60 #if ! NET_1_0
  61                 private XmlResolver xmlResolver;
  62
  63                 [ComVisible(false)]
  64                 public XmlResolver Resolver {
  65                         set { xmlResolver = value; }
  66                 }
  67
  68                 internal XmlResolver GetResolver ()
  69                 {
  70                         return xmlResolver;
  71                 }
  72 #endif
  73         }
  74 }