1 / 12

Service-Oriented Architectures

Service-Oriented Architectures. Software Architecture. Matthew Moccaro. Overview. Introduction. WSDL. WS-BPEL. Introduction. Service-Oriented Architectures SOA Design Pattern based on pieces of software providing services. Directed at Supporting Business Enterprises on the Internet

eddy
Download Presentation

Service-Oriented Architectures

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Service-Oriented Architectures • Software Architecture Matthew Moccaro

  2. Overview Introduction WSDL WS-BPEL

  3. Introduction • Service-Oriented Architectures • SOA • Design Pattern based on pieces of software providing services. • Directed at Supporting Business Enterprises on the Internet • Independence of various interacting organizations

  4. Example: Page 434

  5. Core Problem • How should these things be realized? • Components (Services) • Types of Connectors • The application as a whole

  6. Web Services Description Language • (WSDL) • Web Services • A way of providing SOA • Describe services needed • Uses XML to describe the operations needed.

  7. Example: Page 435

  8. Example WSDL • WSDL 1.1 • XML Schema • Information Needed • Function Call • Defines the Protocol • Endpoints

  9. Web Services Business Process Execution Language • Need a Way to Describe Entire Application • Scripting Language • Allows Effective Expression of Business workflows and processes. • Also uses XML. • (WS-BPEL)

  10. Example WS-BPEL • Copy Value Into Variable • Invoke Operation • Import WSDL File • Link To Service • Create Variables <import importType="http://schemas.xmlsoap.org/wsdl/" location="../../test_bucket/service_libraries/tptp_EnginePrinterPort.wsdl" namespace="http://www.eclipse.org/tptp/choreography/2004/engine/Print" /> <partnerLinks> <partnerLink name="printService“ partnerLinkType="print:printLink” partnerRole="printService"/> </partnerLinks> <variables> <variable name="hello_world“ messageType="print:PrintMessage" /> </variables> <assign> <copy> <from><literal>Hello World</literal></from> <to>$hello_world.value</to> </copy> </assign> <invoke partnerLink="printService" operation="print" inputVariable="hello_world" />

  11. Conclusion • SOA - Design Pattern based on pieces of software providing services. • Different languages can be used to describe and help realize SOA including WSDL and WS-BPEL. • Simultaneously trying to satisfy many goals. • Interoperability between heterogeneous platforms.

  12. Thanks!

More Related