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SOA PowerPoint Presentation

SOA

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SOA

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  1. SOA 605.702 Service Oriented ArchitectureJohns-Hopkins University Montgomery County Center, Fall 2007 Session 8, Mid Term and Lecture 7: October 30, 2007 Instructor: T. Pole

  2. Session #8 Agenda • Mid Term • Hand in hard copy of mid term take home exercise • 50 minute, in class exam. • Required Reading for This Week • Hassan Chapter 3 and 4 • Using WSE 3.0 to Manipulate SOAP Envelopes • Erl Chapter 9 and 10 • Lecture • Erl Chapters 9 and 10: Service Layers and SOA Delivery Strategies • Hassan Chapters 3 and 4: design patterns for message oriented and service oriented web services. • Time Permitting: Posting services to class site

  3. Hassan Chapters 3 & 4: • CH 3: Design Patterns for Building Message-Oriented Web Services • Ch 4: Design Patterns for Building Service-Oriented Web Services • Ch 5: Installing WSE 3.0

  4. Setting up WSE 3.0 • Download from: http://www.microsoft.com/downloads/details.aspx?familyid=018a09fd-3a74-43c5-8ec1-8d789091255d&displaylang=en • For each project, you must configure WSE support for both requestor and receiver services.

  5. Configuring a Project to Use WSE 3.0 • WSE 3.0 MUST BE CONFIGURED on your build machine, and the target machine hosting your web services. • For each project using WSE 3.0 • Click right in the Solution Explorer on the project on which WSE is to be enabled. • Select WSE 3.0 Settings.. • In the dialog that appears, in the General tab, click “Enable this project for Web Services Enhancements” • ASP.Net (services) select both “Enable this project for Web Service Enhancements” and “Enable Microsoft Web Services Enhancements Soap Protocol Factory” • Otherwise just the first of the two selections above

  6. Accessing the SOAP Context from C# Code in the Requestor • Note: WSE will NOT be required for the class project, but there will be homework exercise and probably a final exam question(s) on using WSE. • In the service reqestor, use the [service name] Wse class instead of the [service name] class when instantiating the service. • localhost.ServiceWse Service = new WS_ADDR_102707_Requestor.localhost.ServiceWse(); • Use the RequestSoapContext attribute to access the SOAP envelope • SoapContext MyContext = Service.RequestSoapContext; • Use the URI type to read the addresses from a SOAP envelope by using the context’s addressing objects’, destination, replyto, etc. values • Uri MyUri = MyContext.Addressing.Destination.Address.Value;

  7. Erl Chapters 9 & 10 • Chapter 9 Service Layers • Chapter 10 SOA Delivery Strategies

  8. Posting Services to Class Web Site • ftp upload • Passive mode • Activate application • Web application tool • Left click on the folder • Click the “Install Application” link to the right • Do not post WSE services to the student web site • The Class Project will not require WSE