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POUtilizing a WCF channel from an IIS ASP.net IHttpModule
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  1. POUtilizing a WCF channel from an IIS ASP.net IHttpModule
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    copied!<p>I have an ASP.net project which involves using a custom IHttpModule. This module will sit in the pipeline and when certain criteria match up, it should invoke a method on a WCF service hosted in a simple C# console application on the same machine.</p> <p>The code for the module is below:</p> <pre><code>using System; using System.Collections.Generic; using System.Text; using System.Web.SessionState; using System.Web; using System.Diagnostics; using System.IO; using System.Runtime.Serialization.Formatters.Binary; using System.Configuration; using System.ServiceModel; using SimpleFarmStateServer; namespace SimpleFarm { public class SimpleFarmModuleSS : IHttpModule, IRequiresSessionState { protected string cache_directory = ""; // WCF ChannelFactory&lt;IStateServer&gt; factory; IStateServer channel; public void Dispose() { } public void Init(System.Web.HttpApplication context) { context.PreRequestHandlerExecute += new EventHandler(context_PreRequestHandlerExecute); setupFactory(); } void setupFactory() { factory = new ChannelFactory&lt;IStateServer&gt;( new NetNamedPipeBinding(), "net.pipe://localhost/StateServer"); } void context_PreRequestHandlerExecute(object sender, EventArgs e) { try { if (factory.State != CommunicationState.Opened) setupFactory(); channel = factory.CreateChannel(); channel.LogAccess("Hello World!"); } catch (Exception ex) { } finally { factory.Close(); } } } } </code></pre> <p>My problem is that this runs the first time, but then subsequent attempts cause this error message</p> <blockquote> <p>The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it is in the Faulted state.</p> </blockquote> <p>It seems as if I am doing something wrong, and I am new to WCF in general so this is very likely.</p> <p>I think the issue is surrounding the ChannelFactory being recreated, and this causes the faulted state.</p>
 

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