SoapExtension not logging request and response

Question

I consume Java Web Service with my c# console client. I need to get request and response. How can I do this with SoapExtension.

I realize TraceExtension Class like this:

using System;
using System.IO;
using System.Web.Services.Protocols;

// Define a SOAP Extension that traces the SOAP request and SOAP 
// response for the XML Web service method the SOAP extension is 
// applied to. 

namespace WSTracer
{
    public class TraceExtension : SoapExtension
    {
        Stream oldStream;
        Stream newStream;
        string filename;

        // Save the Stream representing the SOAP request or SOAP response into 
        // a local memory buffer. 
        public override Stream ChainStream(Stream stream)
        {
            oldStream = stream;
            newStream = new MemoryStream();
            return newStream;
        }

        // When the SOAP extension is accessed for the first time, the XML Web 
        // service method it is applied to is accessed to store the file 
        // name passed in, using the corresponding SoapExtensionAttribute.   
        public override object GetInitializer(LogicalMethodInfo methodInfo, SoapExtensionAttribute attribute)
        {
            return ((TraceExtensionAttribute)attribute).Filename;
        }

        // The SOAP extension was configured to run using a configuration file 
        // instead of an attribute applied to a specific XML Web service 
        // method. 
        public override object GetInitializer(Type WebServiceType)
        {
            // Return a file name to log the trace information to, based on the 
            // type. 
            return "C:\\" + WebServiceType.FullName + ".log";
        }

        // Receive the file name stored by GetInitializer and store it in a 
        // member variable for this specific instance. 
        public override void Initialize(object initializer)
        {
            filename = (string)initializer;
        }

        //  If the SoapMessageStage is such that the SoapRequest or 
        //  SoapResponse is still in the SOAP format to be sent or received, 
        //  save it out to a file. 
        public override void ProcessMessage(SoapMessage message)
        {
            switch (message.Stage)
            {
                case SoapMessageStage.BeforeSerialize:
                    break;
                case SoapMessageStage.AfterSerialize:
                    WriteOutput(message);
                    break;
                case SoapMessageStage.BeforeDeserialize:
                    WriteInput(message);
                    break;
                case SoapMessageStage.AfterDeserialize:
                    break;
            }
        }

        public void WriteOutput(SoapMessage message)
        {
            newStream.Position = 0;
            FileStream fs = new FileStream(filename, FileMode.Append,
                FileAccess.Write);
            StreamWriter w = new StreamWriter(fs);

            string soapString = (message is SoapServerMessage) ? "SoapResponse" : "SoapRequest";
            w.WriteLine("-----" + soapString + " at " + DateTime.Now);
            w.Flush();
            Copy(newStream, fs);
            w.Close();
            newStream.Position = 0;
            Copy(newStream, oldStream);
        }

        public void WriteInput(SoapMessage message)
        {
            Copy(oldStream, newStream);
            FileStream fs = new FileStream(filename, FileMode.Append,
                FileAccess.Write);
            StreamWriter w = new StreamWriter(fs);

            string soapString = (message is SoapServerMessage) ?
                "SoapRequest" : "SoapResponse";
            w.WriteLine("-----" + soapString +
                " at " + DateTime.Now);
            w.Flush();
            newStream.Position = 0;
            Copy(newStream, fs);
            w.Close();
            newStream.Position = 0;
        }

        void Copy(Stream from, Stream to)
        {
            TextReader reader = new StreamReader(from);
            TextWriter writer = new StreamWriter(to);
            writer.WriteLine(reader.ReadToEnd());
            writer.Flush();
        }
    }

    // Create a SoapExtensionAttribute for the SOAP Extension that can be 
    // applied to an XML Web service method.
    [AttributeUsage(AttributeTargets.Method)]
    public class TraceExtensionAttribute : SoapExtensionAttribute
    {

        private string filename = "c:\\log.txt";
        private int priority;

        public override Type ExtensionType
        {
            get { return typeof(TraceExtension); }
        }

        public override int Priority
        {
            get { return priority; }
            set { priority = value; }
        }

        public string Filename
        {
            get
            {
                return filename;
            }
            set
            {
                filename = value;
            }
        }
    }
}

and add my app.config is:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <bindings>
            <basicHttpBinding>
                <binding name="CallerPortBinding" closeTimeout="00:01:00" openTimeout="00:01:00"
                    receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false"
                    bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
                    maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
                    messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
                    useDefaultWebProxy="true">
                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                    <security mode="None">
                        <transport clientCredentialType="None" proxyCredentialType="None"
                            realm="" />
                        <message clientCredentialType="UserName" algorithmSuite="Default" />
                    </security>
                </binding>
            </basicHttpBinding>
        </bindings>
        <client>
            <endpoint address="http://192.168.5.39:7001/EisGateway/ServiceCall"
                binding="basicHttpBinding" bindingConfiguration="CallerPortBinding"
                contract="GNISrvRef.Caller" name="CallerPort" />
        </client>
    </system.serviceModel>
    <system.web>
        <webServices>
            <soapExtensionTypes>
                <add type="WSTracer.TraceExtension,WSTracer" priority="1" />
            </soapExtensionTypes>
        </webServices>
    </system.web>
</configuration>

Can you help me?

Answer 1

It is much, much easier to use the builtin diagnostic log tracing by adding the following entry to your web.config:

<system.diagnostics>
  <sources>
    <source name="System.ServiceModel"
            switchValue="Information, ActivityTracing"
            propagateActivity="true">
      <listeners>
         <add name="traceListener"
            type="System.Diagnostics.XmlWriterTraceListener"
            initializeData="c:\log\WebTrace.svclog"  />
      </listeners>
    </source>
  </sources>
</system.diagnostics>

(Ensure that the specified directory exists before updating the config)

You can double-click on the generated svclog file and, if you have .Net framework installed, it should automatically open the Service Trace Viewer Tool, which has all of the details that you need.