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Introducing WCF

Introducing WCF. Ken Casada Developer Evangelist Microsoft Switzerland Blog: http :// blogs.msdn.com/swiss_dpe_team/Default.aspx kcasada@microsoft.com. Sys.Messaging. Ent Services. Attribute-based programming. Message- based programming. Windows Communication Foundation.

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Introducing WCF

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  1. Introducing WCF • Ken Casada • Developer Evangelist • Microsoft Switzerland • Blog: http://blogs.msdn.com/swiss_dpe_team/Default.aspx • kcasada@microsoft.com

  2. Sys.Messaging Ent Services Attribute-based programming Message- based programming Windows Communication Foundation Unified framework supersets existing technologies ASMX Remoting Location transparency Interop with other platforms WSE WS-* protocols

  3. class HelloService { • [WebMethod] • public String Hello(String Greeting) { • X509CertificateCollection collection = new X509CertificateCollection(); • IntPtr blob = Marshal.AllocHGlobal(Marshal.SizeOf( typeof(CRYPTOAPI_BLOB))); • IntPtr data = (IntPtr)((int)blob + • Marshal.SizeOf(typeof(CRYPTOAPI_BLOB))); • … • SeqAckRange range = new SeqAcknRange(id, low, high ); • SeqAckRange[] ranges = { range }; • ReliableQueue.ProcessAcks( ranges ); • … • BeginTransaction (NULL, • ISOLATIONLEVEL_SERIALIZABLE, 0, pITxOptions, • &pITransaction); • … • return Greeting; • } • } 20,379 linessecurity 5,988 lines reliable messaging 25,507 linestransactions 4,442 lines infrastructure Total lines 56,296 ProductivityUsing Visual Studio .NET 2003

  4. class HelloService { [WebMethod] public String Hello(String Greeting) { foreach ( SecurityTokentok in requestContext.Security.Tokens { X509SecurityToken token = tok as X509SecToken } … SeqAckRange range = new SeqAcknRange(id,low,high ); SeqAckRange[] ranges = { range }; ReliableQueue.ProcessAcks( ranges ); … BeginTransaction (NULL, ISOLATIONLEVEL_SERIALIZABLE, 0, pITxOptions, &pITransaction); … return Greeting; } } 10 lines security 1,804 lines reliable messaging 25,507 linestransactions Total lines 27,321 ProductivityUsing Visual Studio .NET 2003 and WSE

  5. [ServiceContract] class HelloService { [OperationContract] [PrincipalPermission(SecurityAction.Demand, Role = “Adminstrators")] [TransactionFlow(TransactionFlowOption.Mandatory)] [OperationBehavior(TransactionScopeRequired = true, TransactionAutoComplete = true)] String Hello(String Greeting) {return Greeting;} } <bindings> <wsHttpBinding> <binding name="Binding1“ transactionFlow="true"> <security mode="Message"> <message clientCredentialType="Windows“/> </security> <reliableSession enabled="true" /> </binding> </wsHttpBinding> </bindings> 1 code + 2 config (elem.) security 0 code + 1 config (elem.) reliable messaging 2 code + 1 config (attr.)transactions Total lines:3 code (what) + 4 config (how) Productivity Using Visual Studio 2005 and WCF

  6. Endpoints Client Service Endpoint Endpoint Endpoint Endpoint

  7. Endpoint Address, Binding, Contract Client Service A B C C B A A B C A B C Address Where? Binding How? Contract What?

  8. WCF

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