mcs/class/System.Runtime.Remoting/System.Runtime.Remoting.Channels/SoapClientFormatterSink.cs

   1 //
   2 // System.Runtime.Remoting.Channels.SoapClientFormatterSink.cs
   3 //
   4 // Authors:     Rodrigo Moya (rodrigo@ximian.com)
   5 //              Jean-Marc André (jean-marc.andre@polymtl.ca)
   6 //
   7 // 2002 (C) Copyright, Ximian, Inc.
   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.Collections;
  32 using System.IO;
  33 using System.Reflection;
  34 using System.Runtime.Remoting.Messaging;
  35 using System.Runtime.Serialization;
  36 using System.Runtime.Serialization.Formatters;
  37 using System.Runtime.Serialization.Formatters.Soap;
  38
  39 namespace System.Runtime.Remoting.Channels
  40 {
  41         public class SoapClientFormatterSink : IClientFormatterSink,
  42                 IMessageSink, IClientChannelSink, IChannelSinkBase
  43         {
  44                 private IClientChannelSink _nextChannelSink;
  45                 private SoapCore _soapCore = SoapCore.DefaultInstance;
  46
  47                 public SoapClientFormatterSink (IClientChannelSink sink)
  48                 {
  49                         _nextChannelSink = sink;
  50                 }
  51
  52                 internal SoapCore SoapCore
  53                 {
  54                         get { return _soapCore; }
  55                         set { _soapCore = value; }
  56                 }
  57
  58                 // IClientChannelSink
  59                 public IClientChannelSink NextChannelSink
  60                 {
  61                         get {
  62                                 return _nextChannelSink;
  63                         }
  64                 }
  65
  66                 // IMessageSink
  67                 public IMessageSink NextSink
  68                 {
  69                         get {
  70                                 return null ;
  71                         }
  72                 }
  73
  74                 // IChannelSinkBase
  75                 public IDictionary Properties
  76                 {
  77                         get {
  78                                 return null;
  79                         }
  80                 }
  81
  82                 public IMessageCtrl AsyncProcessMessage (IMessage msg,
  83                                                          IMessageSink replySink)
  84                 {
  85                         Stream requestStream;
  86                         ITransportHeaders requestHeaders;
  87                         SoapMessageFormatter soapMsgFormatter;
  88
  89                         SerializeMessage(msg, out requestStream, out requestHeaders, out soapMsgFormatter);
  90
  91                         ClientChannelSinkStack stack = new ClientChannelSinkStack(replySink);
  92                         stack.Push(this, new CallData (msg, soapMsgFormatter));
  93
  94                         _nextChannelSink.AsyncProcessRequest(stack, msg, requestHeaders, requestStream);
  95
  96                         return null;
  97                 }
  98
  99                 public void AsyncProcessRequest (IClientChannelSinkStack sinkStack,
 100                                                  IMessage msg,
 101                                                  ITransportHeaders headers,
 102                                                  Stream stream)
 103                 {
 104                         // this method should never be called
 105                         throw new NotSupportedException ();
 106                 }
 107
 108                 public void AsyncProcessResponse (IClientResponseChannelSinkStack sinkStack,
 109                                                   object state,
 110                                                   ITransportHeaders headers,
 111                                                   Stream stream)
 112                 {
 113                         CallData data = (CallData)state;
 114                         SoapMessageFormatter soapMsgFormatter = data.Formatter;
 115                         IMessage replyMessage = (IMessage) DeserializeMessage(stream, headers, (IMethodCallMessage)data.Msg, soapMsgFormatter);
 116                         sinkStack.DispatchReplyMessage(replyMessage);
 117
 118                 }
 119
 120                 public Stream GetRequestStream (IMessage msg,
 121                                                 ITransportHeaders headers)
 122                 {
 123                         // First sink in the chain so this method should never
 124                         // be called
 125                         throw new NotSupportedException ();
 126                 }
 127
 128                 public void ProcessMessage (IMessage msg,
 129                                             ITransportHeaders requestHeaders,
 130                                             Stream requestStream,
 131                                             out ITransportHeaders responseHeaders,
 132                                             out Stream responseStream)
 133                 {
 134                         // First sink in the chain so this method should never
 135                         // be called
 136                         throw new NotSupportedException ();
 137
 138                 }
 139
 140                 public IMessage SyncProcessMessage (IMessage msg)
 141                 {
 142                         Stream requestStream, responseStream;
 143                         ITransportHeaders requestHeaders, responseHeaders;
 144                         SoapMessageFormatter soapMsgFormatter;
 145
 146                         SerializeMessage(msg, out requestStream, out requestHeaders, out soapMsgFormatter);
 147                         _nextChannelSink.ProcessMessage(msg, requestHeaders, requestStream, out responseHeaders, out responseStream);
 148
 149                         return DeserializeMessage(responseStream, responseHeaders, (IMethodCallMessage)msg, soapMsgFormatter);
 150                 }
 151
 152
 153                 private void SerializeMessage(IMessage msg, out Stream requestStream, out ITransportHeaders requestHeaders, out SoapMessageFormatter soapMsgFormatter) {
 154                         SoapMessage soapMsg;
 155                         soapMsgFormatter = new SoapMessageFormatter();
 156                         soapMsg = soapMsgFormatter.BuildSoapMessageFromMethodCall((IMethodCallMessage) msg, out requestHeaders);
 157
 158                         // Get the stream where the message will be serialized
 159                         requestStream = _nextChannelSink.GetRequestStream(msg, requestHeaders);
 160
 161                         if(requestStream == null) requestStream = new MemoryStream();
 162
 163                         // Serialize the message into the stream
 164                         _soapCore.Serializer.Serialize(requestStream, soapMsg, null);
 165
 166                         if(requestStream is MemoryStream){
 167                                 requestStream.Position = 0;
 168                         }
 169                 }
 170
 171
 172                 private IMessage DeserializeMessage(Stream responseStream, ITransportHeaders responseHeaders,IMethodCallMessage mcm, SoapMessageFormatter soapMsgFormatter)
 173                 {
 174                         SoapFormatter fm = _soapCore.GetSafeDeserializer ();
 175                         SoapMessage rtnMessage = soapMsgFormatter.CreateSoapMessage (false);
 176                         fm.TopObject = rtnMessage;
 177                         object objReturn = fm.Deserialize(responseStream);
 178
 179                         if (objReturn is SoapFault)
 180                                 return soapMsgFormatter.FormatFault ((SoapFault) objReturn, mcm);
 181                         else
 182                                 return soapMsgFormatter.FormatResponse ((ISoapMessage) objReturn, mcm);
 183                 }
 184
 185                 class CallData
 186                 {
 187                         public CallData (IMessage msg, SoapMessageFormatter formatter) { Msg = msg; Formatter = formatter; }
 188                         public IMessage Msg;
 189                         public SoapMessageFormatter Formatter;
 190                 }
 191         }
 192 }