mcs/class/System.Web.Services/System.Web.Services.Discovery/ContractReference.cs

   1 // \r
   2 // System.Web.Services.Discovery.ContractReference.cs\r
   3 //\r
   4 // Author:\r
   5 //   Dave Bettin (javabettin@yahoo.com)\r
   6 //   Lluis Sanchez Gual (lluis@ximian.com)\r
   7 //\r
   8 // Copyright (C) Dave Bettin, 2002\r
   9 //\r
  10 \r
  11 using System.IO;\r
  12 using System.Web.Services.Description;\r
  13 using System.Xml.Serialization;\r
  14 using System.Xml;\r
  15 using System.Xml.Schema;\r
  16 \r
  17 namespace System.Web.Services.Discovery {\r
  18 \r
  19         [XmlRootAttribute("contractRef", Namespace="http://schemas.xmlsoap.org/disco/scl/", IsNullable=true)]\r
  20         public class ContractReference : DiscoveryReference {\r
  21 \r
  22                 #region Fields\r
  23                 \r
  24                 public const string Namespace = "http://schemas.xmlsoap.org/disco/scl/";\r
  25 \r
  26                 private ServiceDescription contract;\r
  27                 private string defaultFilename;\r
  28                 private string docRef;\r
  29                 private string href;\r
  30                 \r
  31                 #endregion // Fields\r
  32                 \r
  33                 #region Constructors\r
  34 \r
  35                 public ContractReference () \r
  36                 {\r
  37                 }\r
  38                 \r
  39                 public ContractReference (string href) : this() \r
  40                 {\r
  41                         this.href = href;\r
  42                 }\r
  43                 \r
  44                 public ContractReference (string href, string docRef)\r
  45                 {\r
  46                         this.href = href;\r
  47                         this.docRef = docRef;\r
  48                 }\r
  49                 \r
  50                 #endregion // Constructors\r
  51 \r
  52                 #region Properties\r
  53 \r
  54                 [XmlIgnore]\r
  55                 public ServiceDescription Contract {\r
  56                         get {\r
  57                                 if (ClientProtocol == null) \r
  58                                         throw new InvalidOperationException ("The ClientProtocol property is a null reference");\r
  59                                 \r
  60                                 ServiceDescription desc = ClientProtocol.Documents [Url] as ServiceDescription;\r
  61                                 if (desc == null)\r
  62                                         throw new Exception ("The Documents property of ClientProtocol does not contain a WSDL document with the url " + Url);\r
  63                                         \r
  64                                 return desc; \r
  65                         }\r
  66                 }\r
  67 \r
  68                 [XmlIgnore]\r
  69                 public override string DefaultFilename {\r
  70                         get { return FilenameFromUrl (Url) + ".wsdl"; }\r
  71                 }\r
  72                 \r
  73                 [XmlAttribute("docRef")]\r
  74                 public string DocRef {\r
  75                         get { return docRef; }\r
  76                         set { docRef = value; }\r
  77                 }\r
  78                 \r
  79                 [XmlAttribute("ref")]\r
  80                 public string Ref {\r
  81                         get { return href; }\r
  82                         set { href = value; }\r
  83                 }\r
  84                 \r
  85                 [XmlIgnore]\r
  86                 public override string Url {\r
  87                         get { return href;}                     \r
  88                         set { href = value; }\r
  89                 }\r
  90                 \r
  91                 #endregion // Properties\r
  92 \r
  93                 #region Methods\r
  94 \r
  95                 public override object ReadDocument (Stream stream)\r
  96                 {\r
  97                         return ServiceDescription.Read (stream);\r
  98                 }\r
  99                 \r
 100                 protected internal override void Resolve (string contentType, Stream stream) \r
 101                 {\r
 102                         ServiceDescription wsdl = ServiceDescription.Read (stream);\r
 103                         \r
 104                         if (!ClientProtocol.References.Contains (Url))\r
 105                                 ClientProtocol.References.Add (this);\r
 106 \r
 107                         ClientProtocol.Documents.Add (Url, wsdl);\r
 108                         ResolveInternal (ClientProtocol, wsdl);\r
 109                 }\r
 110                 \r
 111                 internal void ResolveInternal (DiscoveryClientProtocol prot, ServiceDescription wsdl) \r
 112                 {\r
 113                         if (wsdl.Imports == null) return;\r
 114                         \r
 115                         foreach (Import import in wsdl.Imports)\r
 116                         {\r
 117                                 if (prot.Documents.Contains (import.Location))  // Already resolved\r
 118                                         continue;\r
 119                                         \r
 120                                 string url = import.Location;\r
 121                                 string contentType = null;\r
 122                                 Stream stream = prot.Download (ref url, ref contentType);\r
 123                                 XmlTextReader reader = new XmlTextReader (stream);\r
 124                                 reader.MoveToContent ();\r
 125                                 \r
 126                                 DiscoveryReference refe;\r
 127                                 if (ServiceDescription.CanRead (reader))\r
 128                                 {\r
 129                                         ServiceDescription refWsdl = ServiceDescription.Read (reader);\r
 130                                         refe = new ContractReference ();\r
 131                                         refe.ClientProtocol = prot;\r
 132                                         refe.Url = url;\r
 133                                         ((ContractReference)refe).ResolveInternal (prot, refWsdl);\r
 134                                         prot.Documents.Add (url, refWsdl);\r
 135                                 }\r
 136                                 else\r
 137                                 {\r
 138                                         XmlSchema schema = XmlSchema.Read (reader, null);\r
 139                                         refe = new SchemaReference ();\r
 140                                         refe.ClientProtocol = prot;\r
 141                                         refe.Url = url;\r
 142                                         prot.Documents.Add (url, schema);\r
 143                                 }\r
 144                                 \r
 145                                 if (!prot.References.Contains (url))\r
 146                                         prot.References.Add (refe);\r
 147                                         \r
 148                                 reader.Close ();\r
 149                         }\r
 150                 }\r
 151                 \r
 152         public override void WriteDocument (object document, Stream stream) \r
 153                 {\r
 154                         ((ServiceDescription)document).Write (stream);\r
 155                 }\r
 156 \r
 157                 #endregion // Methods\r
 158         }\r
 159 }