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PLAT-7 Spring Web Scripts and Spring Surf
The document provides a detailed history and overview of Alfresco's web scripts and Spring Surf, highlighting key developments from 2007 to 2011, including the introduction of REST APIs and the integration with Spring MVC. It explains web scripts as services bound to URIs that respond to HTTP methods and describes the components of Spring Surf, focusing on their functionality for rapid web development and extensibility. Additionally, it discusses best practices and configurations for customizing Alfresco Share and utilizing web scripts effectively.
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PLAT-7 Spring Web Scripts and Spring Surf
- 1. Spring Surf &Web Scripts! Dave Draper – UI Engineer - @_DaveDraper!
- 2. History lesson... 2007 • Alfresco 2.0 introduces first REST API (early WebScripts concepts)! • Alfresco 2.1 introduces WebScripts! • REST framework, JSR-311 (Jax-RS) URI Index! • Scriptable controllers (or backed by Spring Java Beans)! • FreeMarker template output (or Java output stream)! 2008 • Alfresco Web Framework demo-ware (model objects, JSP, FTL)! • Alfresco Page Render (WebScripts as components on a page)! • Combined, productised and renamed to Surf! • Alfresco Share 3.0, 3.1 – Alfresco collaboration and DM – modern XHTML and Ajax based interface!
- 3. History lesson (cont)... Early2009 • Alfresco Share 3.2! • First contact between Alfresco and Spring Source! Late 2009 • Alfresco Surf and WebScripts integrated with Spring MVC! • Alfresco Surf and WebScripts contributed as Spring Extension – Spring WebScripts and Spring Surf! • Alfresco Share 3.3 – refactored onto Spring WebScripts and Spring Surf!! 2010 • 3 Milestones and RC1 release! • Alfresco Share 3.4 – using SpringSurf RC1!
- 4. History lesson (cont)... 2011 • Alfresco Team! • New extensibility capabilities added! • Version 1.0.0 releases! • Alfresco Share 4.0!
- 5. What Are WebScripts? • Servicesbound to a URIs which respond to HTTP methods such as GET, POST, PUT and DELETE! • Support multiple formats (HTML, JSON & XML)! • A framework for creating a REST API! • Made up of descriptor, controller, properties, configuration and presentation files!
- 6. WebScripts! • Descriptor (XML) • Controller (JavaScript/JavaSpring Bean) • Response Formats (FreeMarker) • I18N properties (Text) • Configuration (XML)
- 7. Response Formats! • Availableformats • HTML! • Text! • XML! • ATOM! • RSS! • JSON! • Set default in Descriptor (if more than one available) • Request by: • Extension (e.g. /script1.html, /script1.json, etc)! • Format request parameter (e.g. /script1?format=xml)!
- 8. Why Use WebScripts? • Rapid development (no server restarts) • Separation of concerns (MVC) • Localization • Extensibility • FreeMarker and JavaScript
- 9. But What IsSpring Surf ? • An extension to Spring MVC • A set of controllers, resolvers and views • A way of breaking an HTML page into re- usable composite parts • An interface to the Alfresco Repository • The framework that underpins Alfresco Share
- 10. Example Spring SurfObjects • Pages • Template Instances • Regions • Chrome • Components • Sub-Components
- 11. Sub-‐ Component Component Region Region-‐Chrome Components Chrome Template-‐Instance Page
- 12. Mistakes were made… • Chrome • Scopes • No Component nesting • 1-1 Region/Component binding • Spring Roo • Tools • Difficult to match output to source
- 13. …but there islots of good stuff ! • Themes • Model Object stores (file system, classpath, remote, etc) • Presets / object creation • URI templates • Remote connections • Authentication • Extensibility • Endlessly configurable
- 14. What can youdo with it? • Rapid web-tier view composition – Spring MVC View Resolver! • FreeMarker, JSP, Groovy, PHP pages! • WebScript, FTL, JSP, Groovy, PHP components! • Simple JavaScript, Groovy controllers! • Remote API – REST request/response processing! • WebScripts – standalone REST API tier! • Portlets!
- 15. What you SHOULDdo with it?! • Customize Alfresco Share! • Use WebScripts and FreeMarker! • Use JavaScript controllers! • Use Endpoints to contact an Alfresco Repository in standalone applications!
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- 17. WebScript and SurfObject lookup!
- 18. Authentication (WebScripts &Surf Pages)! • Use <authentication> element • Available types: • “none”! • “guest”! • “user”! • “admin”! • Authenticates against Alfresco Repository • Can use “runas” property with WebScripts only
- 19. URI Templates (WebScripts)! • Use tokens in URL • e.g. “/x/{token1}/y/{token2}/z”! • Can define multiple URLs in single descriptor • Use “url.templateArgs” to access • ${url.templateArgs.token1}!
- 20. URI Templates (SurfPages)! • Define “uri-template” in <alfresco-config> (e.g. “share-config- custom.xml) • Include {pageid} token for Page mapping! • Or ensure Page exists (e.g. Created through Preset)! • Use page.url.templateArgs to access tokens • e.g. ${page.url.templateArgs.token1}!
- 21. Surf Configuration! • Configurationobject • Site home page! • Site theme! • Surf.xml • Object type implementations (e.g. AdvancedComponent)! • User factories! • Site configuration! • Chrome! • Page type (e.g. Login)! • Module Deployment! • Spring Application Context • Services (configuration loading, user factories, persistence, remote access, etc)! • Controllers (login controllers, etc)! • Interceptors!
- 22. Custom Home Page! • From: http://blogs.alfresco.com/wp/ddraper/2011/11/01/advanced- share-customization-part-1/ • Optionally override <site-configuration> in “surf.xml” • Default is “slingshot.site.configuration”! • Set <root-page> property in Configuration object
- 23. Custom Login Page! • From: http://blogs.alfresco.com/wp/ddraper/2011/11/03/advanced- share-customization-part-2/ • Create Page and Template-Instance objects for custom login page • Define new default “login” Page-Type object
- 24. Regions and Components • Regions define location into which Components can be bound • Binding done through region-id, source-id and scope o Forced 1-1 bindings o Flawed concept for Component switching • Sub-Components introduced as a workaround • Components SHOULD use ComponentType or Processor but are “optimized” to use WebScript URL
- 25. Remote API • Connectors &Authenticators! • XML configure access to “endpoints” – obtained by id! • Access HTTP methods through JavaScript controller or Ajax via proxy controller! • Endpoints hide the URL stem from scripts – authentication encapsulated by connectors and authenticators! • Connect to multiple REST sources; alfresco, wiki, search!
- 26. Remote API –Example! var conn = remote.connect("alfresco"); var json = conn.get("/api/products/" + args.filter); if (json.status == 200) { // Create JavaScript objects from the response var obj = eval('(' + json + ')'); if (obj) { // Perform processing on the js objects // set results into the model for the template model.results = somearray; } }
- 27. Model Object Stores • Persisters– read model object definitions from classpath, WEB-INF, JARs! • Alfresco legacy locations and Spring “friendly” locations! o Migration of Alfresco Surf 3.2 apps! o New locations require less files, folders! • Read and write to remote location and local file system! • Example - Alfresco Share stores pages and components for dynamic dashboards in the repository!
- 28. Component .head.ftl template! • Allow WebScripts to add JavaScript and CSS dependencies into HTML <head> • Use ${head} in Template Instance to output dependencies into <head> • Use <@script> to automatically switch between .js and –min.js <link rel="stylesheet" type="text/css" href="${page.url.context}/ products/products.css" /> <script src="${page.url.context}/products/products.js"></script>
- 29. Useful Runtime Tools • /service/index o Browse WebScripts o WebScript refresh o SurfBug toggle
- 30. Roadmap! • Forking fromSpring back into Alfresco • Continued development (more extensibility features, performance improvements) • Continued use in Alfresco projects • More blogging, forums and documentation
- 31. How do Iuse it?! • You CAN SVN checkout, maven build: https://src.springframework.org/svn/se-surf/trunk! • You SHOULD use Alfresco Community JARs when available!
- 32. Learn More! • Blogposts: • http://blogs.alfresco.com/wp/ewinlof/! • http://blogs.alfresco.com/wp/kevinr/! • http://blogs.alfresco.com/wp/ddraper/! • http://mindthegab.com/! • Alfresco Forum: “Surf Development”
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