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

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