mcs/class/System.Web.Services/System.Web.Services.Protocols/XmlReturnWriter.cs

   1 // \r
   2 // System.Web.Services.Protocols.XmlReturnWriter.cs\r
   3 //\r
   4 // Author:\r
   5 //   Tim Coleman (tim@timcoleman.com)\r
   6 //\r
   7 // Copyright (C) Tim Coleman, 2002\r
   8 //\r
   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 \r
  31 using System.IO;\r
  32 using System.Web;\r
  33 using System.Xml.Serialization;\r
  34 using System.Xml;\r
  35 using System.Text;\r
  36 \r
  37 namespace System.Web.Services.Protocols {\r
  38         internal class XmlReturnWriter : MimeReturnWriter {\r
  39 \r
  40                 XmlSerializer serializer;\r
  41                 \r
  42                 #region Methods\r
  43 \r
  44                 public override object GetInitializer (LogicalMethodInfo methodInfo)\r
  45                 {\r
  46                         LogicalTypeInfo sti = TypeStubManager.GetLogicalTypeInfo (methodInfo.DeclaringType);
  47                         object[] ats = methodInfo.ReturnTypeCustomAttributeProvider.GetCustomAttributes (typeof(XmlRootAttribute), true);
  48                         XmlRootAttribute root = ats.Length > 0 ? ats[0] as XmlRootAttribute : null; \r
  49                         \r
  50                         XmlReflectionImporter importer = new XmlReflectionImporter ();\r
  51                         importer.IncludeTypes (methodInfo.CustomAttributeProvider);\r
  52                         XmlTypeMapping map = importer.ImportTypeMapping (methodInfo.ReturnType, root, sti.GetWebServiceLiteralNamespace (sti.WebServiceNamespace));
  53                         return new XmlSerializer (map);\r
  54                 }\r
  55                 \r
  56                 public override object[] GetInitializers (LogicalMethodInfo[] methodInfos)\r
  57                 {\r
  58                         XmlReflectionImporter importer = new XmlReflectionImporter ();\r
  59                         XmlMapping[] sers = new XmlMapping [methodInfos.Length];\r
  60                         for (int n=0; n<sers.Length; n++)\r
  61                         {\r
  62                                 LogicalMethodInfo metinfo = methodInfos[n];\r
  63                                 if (metinfo.IsVoid) \r
  64                                         sers[n] = null;\r
  65                                 else\r
  66                                 {\r
  67                                         importer.IncludeTypes (metinfo.CustomAttributeProvider);\r
  68                                         LogicalTypeInfo sti = TypeStubManager.GetLogicalTypeInfo (metinfo.DeclaringType);\r
  69                                         object[] ats = methodInfos[n].ReturnTypeCustomAttributeProvider.GetCustomAttributes (typeof(XmlRootAttribute), true);
  70                                         XmlRootAttribute root = ats.Length > 0 ? ats[0] as XmlRootAttribute : null;
  71                                         sers[n] = importer.ImportTypeMapping (methodInfos[n].ReturnType, root, sti.GetWebServiceLiteralNamespace (sti.WebServiceNamespace));\r
  72                                 }\r
  73                         }\r
  74                         return XmlSerializer.FromMappings (sers);\r
  75                 }\r
  76 \r
  77                 public override void Initialize (object initializer) \r
  78                 {\r
  79                         serializer = (XmlSerializer) initializer;\r
  80                 }\r
  81 \r
  82                 public override void Write (HttpResponse response, Stream outputStream, object returnValue)\r
  83                 {\r
  84                         if (serializer != null)\r
  85                         {\r
  86                                 response.ContentType = "text/xml; charset=utf-8";\r
  87                                 XmlTextWriter xtw = new XmlTextWriter (outputStream, new UTF8Encoding (false));\r
  88                                 xtw.Formatting = Formatting.Indented;\r
  89                                 serializer.Serialize (xtw, returnValue);\r
  90                         }\r
  91                         outputStream.Close ();\r
  92                 }\r
  93 \r
  94                 #endregion // Methods\r
  95         }\r
  96 }