BizTalk Messaging Archive Custom Solution - Init

<body> <h1>BizTalk Messaging Archive Custom Solution</h1> Lately one of the questions asked on <strong><a href="http://social.msdn.microsoft.com/Forums/en-US/category/biztalkserver">BizTalk Server Forums</a></strong> intrigued me. The question was how one could archive a message including its message context.<br /><br /><strong>Archiving received message</strong><br /><strong> </strong> <br />As soon as a message reaches BizTalk it can go through one of the <strong><a href="http://msdn.microsoft.com/en-us/library/aa577882.aspx">default pipelines</a></strong> (XMLReceive,PassThruReceive) and a message context is added to incoming message.<br />                                                 <a href="http://lh6.ggpht.com/-JYVmsdFS4hE/T1qKHIJnOYI/AAAAAAAAETU/HBViRQ5WWoI/s1600-h/Message-Context5.png"><img alt="Message Context" border="0" height="268" src="http://lh5.ggpht.com/-WjTg1kpVHSE/T1qKIoOkzLI/AAAAAAAAETc/d-gaWiwZbkM/Message-Context_thumb3.png?imgmax=800" style="background-image: none; border-bottom-width: 0px; border-left-width: 0px; border-right-width: 0px; border-top-width: 0px; display: inline; padding-left: 0px; padding-right: 0px; padding-top: 0px;" title="Message Context" width="177" /></a><br />The <strong>XMLReceive</strong> pipeline has a <strong><a href="http://msdn.microsoft.com/en-us/library/aa561814.aspx">XmlDisassembler pipeline component</a></strong> on the disassembling stage.<br /><br /><a href="http://lh3.ggpht.com/-xMIySh-LnR0/T1qKKM2w_1I/AAAAAAAAETk/x3NeZyljfzI/s1600-h/Pipeline4.png"><img alt="Pipeline" border="0" height="138" src="http://lh5.ggpht.com/-0wlt1nz89Pc/T1qKLq9opgI/AAAAAAAAETs/Uvo98h5UkjM/Pipeline_thumb2.png?imgmax=800" style="background-image: none; border-bottom-width: 0px; border-left-width: 0px; border-right-width: 0px; border-top-width: 0px; display: inline; padding-left: 0px; padding-right: 0px; padding-top: 0px;" title="Pipeline" width="600" /></a><br />Whenever an Xml message is received via the XmlReceive pipeline the <strong>XmlDisassembler</strong> will do the following tasks: <br /><ul><li>Promote the "MessageType" context property by taking the combination of <strong><em>TargetNamespace</em></strong> and <strong><em>Root Element</em></strong> in the format of: Targetnamespace#RootElement. So one of context properties BizTalk will set (promote) is the MessageType. </li></ul><table border="2" cellpadding="2" cellspacing="0" style="width: 600px;"> <tbody><tr> <td valign="top" width="593"><strong>Name:</strong> MessageType - <strong>Namespace:</strong> <a href="http://schemas.microsoft.com/BizTalk/2003/system-properties">http://schemas.microsoft.com/BizTalk/2003/system-properties</a> - <a href="http://biztalk.archiving.banktransaction/#Transaction">http://BizTalk.Archiving.BankTransaction#Transaction</a></td></tr></tbody></table><ul><li>Remove Envelopes and disassemble the interchanges </li><li>Promote the content properties from interchange and individual document into message context based on the configured distinguished fields and promoted properties. </li></ul>I will discuss here a custom disassembler pipeline component that will promote the “MessageType” context property and archive the message context and body to file. It will not perform the other two default actions by <strong>XmlDisassembler pipeline component.</strong><br />Pipeline component is targeted for <strong>disassembler</strong> stage of the receive pipeline. The component category is CATID_DisassemblingParser will be set above the class amongst other attributes. Since the component is targeted at the disassembling stage the <strong>IDisassemblerComponent</strong> needs to be implemented. This interface has two methods, <strong>Disassemble </strong>and <strong>GetNext</strong>. In the <strong>Disassemble </strong>method you will find the implementation for archiving the received message.<br /><pre class="brush:csharp"> <span style="font-size: xx-small;">/// <summary><br /> /// Implemen </summary></span></pre></body>