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Developing Web Services with Eclipse Arthur Ryman ryman@ca.ibm

Developing Web Services with Eclipse Arthur Ryman ryman@ca.ibm.com. Web Service and SOA China, Beijing 2005-04-07. Abstract.

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Developing Web Services with Eclipse Arthur Ryman ryman@ca.ibm

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  1. Developing Web Services with EclipseArthur Rymanryman@ca.ibm.com Web Service and SOA China, Beijing 2005-04-07

  2. Abstract The recently created Web Tools Platform Project extends Eclipse with a set of open source Web service development tools and APIs. This talk gives an overview of the project and focuses on its Web services support. The project is divided into two subprojects: Web Standard Tools and J2EE Standard Tools. The Web Standard Tools subproject contains support for XML Web Services, including tools based on standards defined by W3C, Oasis, WS-I and others. The J2EE Standard Tools subproject contains support for standards defined by JCP, such as JAX-RPC and JSR-109, and for reference implementations of these standards, such as Apache Axis. The project contains both a set of tools for Web service developers and a set of APIs for Web service tool creators. The talk includes a demonstration of the tools.

  3. My Background • Software Development Manager at IBM Toronto Lab • Focus on Web Service, XML, and J2EE Tools • Rational Application Developer V6 • WebSphere Studio Application Developer V4, V5 • VisualAge for Java V1, V2, V3 • Member of Eclipse Web Tools Platform Project PMC • Leader of Web Standard Tools Subproject • Member of W3C Web Service Description Working Group • Editor of WSDL 2.0 Specification, Part 1

  4. Topics • Open Source and Web Services • Eclipse Foundation • Eclipse Web Tools Platform (WTP) Project • WTP Web Service Tools • Call for Participation • Demos

  5. Why open source matters for Web Services and SOA

  6. Web Services are About Interoperability Company B Company A

  7. ? Vendor A Vendor C Vendor A Vendor C Vendor C Vendor B Vendor B ? Interoperability with Multiple Vendors • Different implementation of standards • ‘Value add’ proprietary extensions • Implementation of a web service does not conform to standard • Result: Lots of interoperability testing

  8. Where problems may arise • Implementation of Web Service Runtime (SOAP Engine) • Each vendor implements standards differently • Different interpretation of standards • ‘Value add’ proprietary features • Optimization to certain environments (security, transactional, reliability, XML compression) • Implementation of specific web service • Is the web service using well formed WSDL? • Does the web service support the WS-I Basic Profile? • E.g. exclude SOAP encoding

  9. Learn from the Past: Success of the Internet • Early 1990’s Internet starts to take off • TCP/IP and HTML become accepted standards • Most major software vendors develop HTML web servers • Apache evolves from NCSA and becomes dominant web server • It was good and free! • Commercial friendly license • Software vendors adopt Apache or ensure interoperability • IBM, Oracle, etc adopted Apache • The result: an Internet which is pervasively available and free Open source provides the platform

  10. http://news.netcraft.com/archives/web_server_survey.html

  11. Key to Success for Interoperability • Open Standards • OASIS, W3C, WS-I • Pervasive open source reference implementations • Forces vendors to adhere to standards to ensure interoperability • Royalty free software promotes quick adoption • Open source implementation must be commercial quality • Freely available tools to create, test and deploy web services • Ensures web services conform to standards, ex WS-I Basic Profile

  12. Open Development Platform • Eclipse, Mono, Netbeans • Consistent implementation and validation environment Open Source Platform • OASIS, W3C, WS-I • XML, SOAP, WSDL • Consistent Meta-data Open Standards Open Source Runtimes • ObjectWeb, Apache • Consistent execution environment

  13. The Role of Eclipse in Web Services Open Source implementations of standards-based runtimes, tools, and testing frameworks are vital to the pervasive success of Web Services.

  14. Eclipse Foundation

  15. About Eclipse • Eclipse is an Open Source universal tool integration platform • Contributed by IBM • Eclipse Foundation was formed in 2004 as an independent legal entity • Eclipse is implemented in Java but is language neutral • Eclipse has excellent Java development tools and is rapidly becoming the most popular IDE • Eclipse has a highly extensible plug-in archtecture • Extension points and extensions • Commercial products like WebSphere Studio and Rational Application Developer are based on Eclipse

  16. Another Tool Eclipse Platform Workbench Help Java Development Tooling (JDT) JFace SWT Your Tool VCM Plug-in Development Environment (PDE) Workspace Their Tool Platform Runtime Eclipse SDK

  17. Java Dev Tools C/C++ Dev Tools Test and Performance Web Tools Web Services Web applications J2EE Business Intelligence & Reporting Frameworks Modeling Frameworks Graphical Frameworks Tools Platform Project Model Rich Client Platform Runtime(OSGi) Generic Workbench Update Eclipse Open Development Platform Ecosystem

  18. Enterprise IT Borland Together Edition for Eclipse HP OCMP OClet Development Env. IBM WebSphere Studio Application Developer IBM Rational Application Developer SAP NetWeaver Studio Linux Novell/SuSE Linux SDK Red Hat Developer Studio Intel Compiler for Linux BPM Oracle Collaxa BPEL Designer IBM WBI Embedded PalmOS Dev Suite Monta Vista DevRocket Wind River Workbench QNX Momentics TimeSys TimeStorm IDE Tensilica Xtensa Xplorer IDE Mentor Graphics Nucleus Edge Examples of Eclipse Based Commercial Tools

  19. The IBM Software Development Platform Analyst Architect Developer Tester Deployment Manager Rational Functional & ManualTester Rational Web/App Developer Tivoli Configuration Manager WebSphere Business Integration Modeler & Monitor Rational Software Modeler Rational Software Architect Rational Performance Tester TivoliMonitoring WebSphere Tools CustomerExtensions 3rd PartyISV Tools ECLIPSE Rational Team Unifying Platform Project Manager Rational Portfolio Manager Executive

  20. Analyst Architect Developer Tester Project Manager IBM Software Development Platform and Eclipse Deployment Manager Model Services (UML2 ext, other Meta-Models, Code Gen APIs, …) others Web Tools UML2 TPTP Eclipse CM, Merge, Traceability…. EMF GEF JDT/CDT Team Eclipse Core

  21. Eclipse Web Tools Platform Project

  22. Eclipse Web Tools Platform Project • See: http://eclipse.org/webtools • Extends the Eclipse Platform with tools and APIs for Web and J2EE application development • Formally launched in June 2004 • Has two top level subprojects: • Web Standard Tools (WST) • J2EE Standard Tools (JST) • Includes tools for HTML, XML, Web Services, J2EE, Data • Includes Server tools for integrating application servers, e.g. Tomcat, JBoss, WebSphere, WebLogic

  23. WTP Subproject Scopes WST HTML, XML, CSS, JS, WSDL, SOAP,UDDI, SQL JST Servlet, JSP,EJB, JAX-RPC,JDBC, JAXP IETFW3COASISWS-IECMAANSI De Jure JCP JDO,JSF Web Java PHP Struts, Hibernate, Spring De Facto

  24. WTP Downloads • See: http://download.eclipse.org/webtools/downloads/ • Continuous Integration • Nightly Development builds • Weekly Integration builds • Bimonthly Milestone releases • Annual Final releases

  25. WTP 1.0 Release Plan • October 2004 - M1 • December 2004 - M2 • February 2005 - M3 (Web Services!) • April 2005 - M4 • June 2005 - M5 • July 2005 - Final

  26. WTP Web Services Tools

  27. Web Service Tools in WTP • Web Standard Tools • WSDL/XSD Editor • Web Service Explorer • Web Service Wizard • WS-I Test Tools • J2EE Standard Tools • J2EE Explorer • JAX-RPC • JSR 109 • Axis 1.0

  28. WSDL/XSD Editor: Design Web Services • Graphical and Source editing modes • Seamless integration for editing inline XSD • Content Assist • Pop-up actions • Binding Wizard • Validator, including WS-I profiles • Extendible for WSDL extension elements

  29. Web Services Explorer: Discovery and Publish Web Services • Discovery • Search UDDI Registries • Navigate WSIL Documents • Import WSDL into development project • Test • Dynamic invocation based on WSDL • View SOAP messages • Publish • Publish WSDL into UDDI Registries

  30. Web Services Wizard:Create and Access Web Services • Supports generate/deploy/test/publish lifecycle • Configures project, server, and SOAP engine • Highly extensible • SOAP engines • Code generators • Test facilities • Code generation • WSDL to client proxy • WSDL to server skeleton • Java to WSDL • Test facilities • JSP test client

  31. WS-I Test Tools:Test Interoperability of Web Services • Developed in Eclipse Web Service Validation Tools (WSVT) Project • Supports WS-I Basic Profile 1.0/1.1, Simple SOAP Binding Profile 1.0, Attachments Profile 1.0 • WSDL 1.1 Validator • SOAP 1.1 Message Monitor/Analyzer

  32. WS-I SOAP Message Monitor/Analyzer

  33. J2EE Web Services:Deploy Web Services • Web Services appear as first class objects in J2EE Explorer • Content assist for deployment descriptor source editors • JAX-RPC code generators • JSR 109 support • Axis 1.0 adaptor

  34. Call for Participation: eclipse.org/webtools • Become a user and tell your friends • Test and report bugs • Write tutorials, articles • Fix bugs • Help wanted, e.g.: • Axis 1.1/1.2 support • WSDL 2.0 test suite (W3C) and validator • New WS-I profiles • Become a committer • Develop plug-ins based on WTP • Attend EclipseCon 2006

  35. Demo Screenshots

  36. Web Services Explorer Demo • Open Web Services Explorer • Open XMethods UDDI Registry • Find all “stock quote” services • Select Stock Quote service • Open WSDL page and GetQuote for “IBM” • Import WSDL into Workbench “StockQuoteClient” project as “StockQuote.wsdl”

  37. WSDL Editor Demo • Open “StockQuote.wsdl” in WSDL Editor • Go into graphical view of XML schema for messages • Navigate into “GetQuote” element • Switch to Source tab • Navigate using linked Outline and Properties views

  38. Web Service Client Wizard Demo • Run Web Service Client Wizard to generate Java proxy and JSP test page with TCP/IP monitor • Wizard adds Web application to Tomcat 5.0 server and installs Axis 1.0 SOAP engine • Select methods to include in JSP test page • Test getQuote() method using IBM • View SOAP messages in TCP/IP monitor

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