mcs/class/System.ServiceModel/System.ServiceModel.Channels/AddressHeader.cs

   1 //
   2 // System.ServiceModel.AddressHeader.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak (duncan@novell.com)
   6 //      Atsushi Enomoto (atsushi@ximian.com)
   7 //
   8 // Copyright (C) 2005,2010 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System;
  31 using System.IO;
  32 using System.Runtime.Serialization;
  33 using System.ServiceModel;
  34 using System.Xml;
  35 using System.Xml.Schema;
  36
  37 namespace System.ServiceModel.Channels
  38 {
  39         public abstract class AddressHeader
  40         {
  41                 protected AddressHeader () {}
  42
  43                 public static AddressHeader CreateAddressHeader (object value)
  44                 {
  45                         return new DefaultAddressHeader (value);
  46                 }
  47
  48                 public static AddressHeader CreateAddressHeader (object value, XmlObjectSerializer formatter)
  49                 {
  50                         return new DefaultAddressHeader (value, formatter);
  51                 }
  52
  53                 public static AddressHeader CreateAddressHeader (string name, string ns, object value)
  54                 {
  55                         return new DefaultAddressHeader (name, ns, value);
  56                 }
  57
  58                 public static AddressHeader CreateAddressHeader (string name, string ns, object value,
  59                                                                  XmlObjectSerializer formatter)
  60                 {
  61                         if (formatter == null)
  62                                 throw new ArgumentNullException ("formatter");
  63                         return new DefaultAddressHeader (name, ns, value, formatter);
  64                 }
  65
  66                 public override bool Equals (object obj)
  67                 {
  68                         AddressHeader o = obj as AddressHeader;
  69
  70                         if (o == null)
  71                                 return false;
  72
  73                         return o.Name == this.Name && o.Namespace == this.Namespace;
  74                 }
  75
  76                 public virtual XmlDictionaryReader GetAddressHeaderReader ()
  77                 {
  78                         var sw = new StringWriter ();
  79                         var s = new XmlWriterSettings () { OmitXmlDeclaration = true };
  80                         var xw = XmlDictionaryWriter.CreateDictionaryWriter (XmlWriter.Create (sw, s));
  81                         WriteAddressHeader (xw);
  82                         xw.Close ();
  83                         return XmlDictionaryReader.CreateDictionaryReader (XmlReader.Create (new StringReader (sw.ToString ())));
  84                 }
  85
  86                 public override int GetHashCode ()
  87                 {
  88                         return this.Name.GetHashCode () + this.Namespace.GetHashCode ();
  89                 }
  90
  91                 public T GetValue<T> ()
  92                 {
  93                         return GetValue<T> (new DataContractSerializer (typeof (T)));
  94                 }
  95
  96                 public T GetValue<T> (XmlObjectSerializer formatter)
  97                 {
  98                         return (T) formatter.ReadObject (GetAddressHeaderReader ());
  99                 }
 100
 101                 protected abstract void OnWriteAddressHeaderContents (XmlDictionaryWriter writer);
 102                 protected virtual void OnWriteStartAddressHeader (XmlDictionaryWriter writer)
 103                 {
 104                         if (Name != null && Namespace != null)
 105                                 writer.WriteStartElement (Name, Namespace);
 106                 }
 107
 108                 public MessageHeader ToMessageHeader ()
 109                 {
 110                         throw new NotImplementedException ();
 111                 }
 112
 113                 public void WriteAddressHeader (XmlDictionaryWriter writer)
 114                 {
 115                         if (writer == null)
 116                                 throw new ArgumentNullException ("writer is null");
 117
 118                         this.WriteStartAddressHeader (writer);
 119                         this.WriteAddressHeaderContents (writer);
 120                         if (Name != null && Namespace != null)
 121                                 writer.WriteEndElement ();
 122                 }
 123
 124                 public void WriteAddressHeader (XmlWriter writer)
 125                 {
 126                         this.WriteAddressHeader (XmlDictionaryWriter.CreateDictionaryWriter (writer));
 127                 }
 128
 129                 public void WriteAddressHeaderContents (XmlDictionaryWriter writer)
 130                 {
 131                         this.OnWriteAddressHeaderContents (writer);
 132                 }
 133
 134                 public void WriteStartAddressHeader (XmlDictionaryWriter writer)
 135                 {
 136                         this.OnWriteStartAddressHeader (writer);
 137                 }
 138
 139                 public abstract string Name { get; }
 140                 public abstract string Namespace { get; }
 141
 142                 internal class DefaultAddressHeader : AddressHeader
 143                 {
 144                         string name, ns;
 145                         XmlObjectSerializer formatter;
 146                         object value;
 147
 148                         internal DefaultAddressHeader (object value)
 149                                 : this (null, null, value) {}
 150
 151
 152                         internal DefaultAddressHeader (object value, XmlObjectSerializer formatter)
 153                                 : this (null, null, value, formatter)
 154                         {
 155                         }
 156
 157                         internal DefaultAddressHeader (string name, string ns, object value)
 158                                 : this (name, ns, value, null) {}
 159
 160                         internal DefaultAddressHeader (string name, string ns, object value, XmlObjectSerializer formatter)
 161                         {
 162                                 if (formatter == null)
 163                                         formatter = value != null ? new DataContractSerializer (value.GetType ()) : null;
 164                                 this.name = name;
 165                                 this.ns = ns;
 166                                 this.formatter = formatter;
 167                                 this.value = value;
 168                         }
 169
 170                         public override string Name {
 171                                 get { return name; }
 172                         }
 173
 174                         public override string Namespace {
 175                                 get { return ns; }
 176                         }
 177
 178                         protected override void OnWriteAddressHeaderContents (XmlDictionaryWriter writer)
 179                         {
 180                                 if (value == null)
 181                                         writer.WriteAttributeString ("i", "nil", "http://www.w3.org/2001/XMLSchema-instance", "true");
 182                                 else
 183                                         this.formatter.WriteObject (writer, value);
 184                         }
 185                 }
 186
 187         }
 188 }