Rapid Server Side Java Development Using Spring Roo. Christian Tzolov Technical Lead, TTSD, TomTom BV 12/05/2010

Transcription

1 Rapid Server Side Java Development Using Spring Roo Christian Tzolov Technical Lead, TTSD, TomTom BV 12/05/2010

2 Agenda TomTom Service & Delivery Java Developer Productivity & Impediments Demo - Traffic Information System Aggregate data from an external traffic service Provide personalized traffic feeds in HTML, XML and JSON formats Portal Security Portal UI Customization Testing Custom Roo Addon creation Q&A

3 TomTom Service & Delivery TomTom MapShare Route Traces TomTom Route Planner / HD Traffic

4 TomTom MapShare Technology

5 TomTom Trace Data 1 data point == 1 pixel

6 TomTom Route Planner

7 Java Developer Productivity It is essential that most software projects fail. No one need ever again be embarrassed by participation in a failed software project. Rather they should be proud to have spared society from yet another burden of complexity. (An essay on computer productivity)

8 Java Development Toolchain IDEs with refactoring capabilities Eclipse/STS, Idea, Netbeans IoC container Spring, JEE Dependency Management Maven, Ivy, OSGi Build Lifecycle Management Maven, Ant Continuous Integration Hudson, Cruise Control Deployment Management Cloud/Datacenter APIs

9 Productivity Impediments Time consuming to start new project Verbose java code due to many frameworks and conventions No consistent view over the entire toolchain Difficult to capture and reuse important architectural decisions

10 Improved productivity, No engineering trade-offs Extensible, text-based RAD tool for Java and Spring applications. Hybrid (Active + Passive) code generation Conventions over Configuration Encapsulate the best practices for Spring application Java language and standard Java technologies only Applied at development time only No lock-in!

11 Demo: Traffic Information System Web Portal that provides customized traffic situation information to the registered Users

12 Security Traffic Web Portal - Requirements User Interface (UI) Web Controller User 1 User 2 Application Layer ORM Database Provides traffic feeds in human readable (HTML) and XML and JSON formats. User can access his own feed only! Aggregate data from external traffic information service Admin Web Portal for Traffic Information Management Manage portal users and configure traffic feeds for them Traffic Information Servic

13 Environment JDK 1.6 Eclipse/STS MySQL (optional)

14 Aggregate data from an external traffic service JAXB2, XCJ Spring Roo JAXB Add-on Spring RestTemplate

15 Rest Client Implementation Use REST API to query traffic information. Contract First Add JAXB/XCJ support for XML schema compilation (use JAXB XSD Compiler roo add-on) roo> jaxb xsd compiler setup generatedirectory src/main/java Use RestTemplate (Spring 3.0) to call REST services return new RestTemplate().getForObject( TrafficSituation.class, param1, param2 paramn);

16 Traffic Query Service REST API Service is used to query the traffic data using a SQL-like query language {hostname}/tsq/traffic/query/{query}/en/xml/{apikey} Component Description Example hostname The query server name query The traffic query expression (SQL-like syntax) FROM NL LIMIT 10 API key The authorizing API key xxxxxx-yyyyyy-zzzzzz

17 XML response governed by the traffic.xsd <c:foreach items="${trafficsituation.trafficlist.trafficincident}" var="trafficincident"> <tr> <td><c:out value="${trafficincident.locationdescription.country}"/></td> <td><c:out value="${trafficincident.locationdescription.roadnumber}"/></td> <td><c:out value="${trafficincident.eventdescription.lengthaffectedmeters}"/></td> </tr> </c:foreach>

18 Provide personalized traffic feeds in HTML, XML and JSON formats Spring Apache Tiles Layout Content Types & Content Negotiation

19 Traffic Create TrafficController that uses TrafficRestService and generates JSP content: roo> controller class --class ~.web.trafficcontroller Add additional xml, json representations through the content negotiation add-on: roo> http resource representation setup Bind the TrafficSituation class to the content representation configuration: roo> http resource add oxm --class com.tomtom.service.traffic.trafficsituation

20 Portal Security Spring Security 3.0

21 Apply Spring Security 3.0 Roo Security Add-on roo> security setup Implement UserDetails public class PortalUser implements UserDetails public Collection<GrantedAuthority> getauthorities() { return Arrays.asList((GrantedAuthority) new GrantedAuthorityImpl("ROLE_XXX")); } } Customize UserDetailsService public class GeeconUserDetailsService implements UserDetailsService public UserDetails loaduserbyusername(string username) throws UsernameNotFoundException, DataAccessException { return (UserDetails) PortalUser.findPortalUsersByUsername(username).getSingleResult(); } }

22 Apply Spring Security 3.0 Use JSP security tags <xml xmlns:sec= <sec:authorize access="hasrole('role_xxx')"> </ sec:authorize> Access user s details via the SpringSecurityContext PortalUser portaluser = (PortalUser) SecurityContextHolder.getContext().getAuthentication().getPrincipal();

23 Portal UI Customization Spring JS Dojo

24 Simple UI Customization Application Logo standard.css#background-image: url(

25 Simple UI Customization Dojo themes In WEB-INF/layout/default.jspx replace tundra by soria. More themes: Menu Look & Feel <script type="text/javascript"> Spring.addDecoration(new Spring.ElementDecoration({ elementid : div_id_value', widgettype : 'dijit.titlepane', widgetattrs : {title: '${title_name} }})); </script>

26 Testing Integration Tests, Dod Selenium UI tests

27 UI Testing - Selenium Generate Selenium configuration: selenium test --controller ~.web.portalusercontroller Fix the selenium-maven-plugin version to Start the application in tomcat (or Jetty) server mvn jetty:run Run the test: mvn selenium:selenese

28 Roo Add-ons binding-and.html

29 1.0.2 Base Addons Project management (like project management, "perform" commands) creation, dependency General type management (like creation of types, method, JavaBean methods) tostring Persistence (like JPA setup, entities) Field management (like JSR 303 and field creation with JPA compliance) Dynamic finders (creation of finders without needing to write the JPA-QL for them) JUnit testing (with integration and mock testing) Spring MVC (including URL rewriting, JSP services, controller management) Spring Web Flow Spring Security Selenium testing Java Message Service (JMS) Simple Mail Transfer Service (SMTP) Log4J configuration

30 Resources

31 Q&A