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Developing CAS in Eclipse

Developing CAS in Eclipse. Edit and Debug. Maven is Best Practice. Compile and Zip WAR file with Maven 2 Manage “dependencies” (external JARs from other software libraries or products) Run tests to validate each change cycle Build JAR, WAR, or other standard “artifacts” Edit with Eclipse

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Developing CAS in Eclipse

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  1. Developing CAS in Eclipse Edit and Debug

  2. Maven is Best Practice • Compile and Zip WAR file with Maven 2 • Manage “dependencies” (external JARs from other software libraries or products) • Run tests to validate each change cycle • Build JAR, WAR, or other standard “artifacts” • Edit with Eclipse • Syntax and help for Java and XML • Widely used, modularly extensible IDE • How about simple testing with Eclipse?

  3. Maven Compile Main POM Core project source + POM Option project source + POM artifact jar artifact jar artifact jar Option project source + POM artifact jar Option project source + POM

  4. Top level Maven POMoptional projects are compiled <modules> <module>cas-server-core</module> <module>cas-server-support-generic</module> <module>cas-server-support-jdbc</module> <module>cas-server-support-ldap</module> <module>cas-server-support-openid</module> <module>cas-server-support-radius</module> <module>cas-server-support-spnego</module> <module>cas-server-support-trusted</module> <module>cas-server-support-x509</module> <module>cas-server-integration-jboss</module> <module>cas-server-webapp</module> </modules> Options

  5. Java Subproject POM <artifactId>cas-server-support-trusted</artifactId> <packaging>jar</packaging> <dependencies> <dependency> <groupId>org.jasig.cas</groupId> <artifactId>cas-server-core</artifactId> <version>${project.version}</version> </dependency> <dependency> <groupId>cas</groupId> <artifactId>casclient</artifactId> <version>2.1.1</version> </dependency> Generated result JAR for Compile

  6. Maven build WAR Main POM artifact jar artifact jar artifact jar artifact jar cas.war webapp HTML + POM WEB-INF/lib

  7. cas-server-webapp/pom.xmlcore required, add option JARs <dependency> <groupId>org.jasig.cas</groupId> <artifactId>cas-server-core</artifactId> <version>${project.version}</version> </dependency> <dependency> <groupId>org.jasig.cas</groupId> <artifactId>cas-server-support-trusted</artifactId> <version>${project.version}</version> </dependency> <dependency> <groupId>org.jasig.cas</groupId> <artifactId>cas-server-support-x509</artifactId> <version>${project.version}</version> </dependency> Default is core only Add optionartifacts you choose

  8. Eclipse “workspace”, CAS “project”Maven projects {$home}/workspace CAS3xx [Eclipse project] Main POM subproject subproject subproject

  9. Assume You Know How • Install current Java • Install Apache Tomcat • Install and use Maven 2.0.9 Because this is all part of the standard CAS development instructions.

  10. Fork In the Road Eclipse Web Standard Tools MyEclipse $31.75 /year Genuitec.com Includes WST, plus Spring, WS, Hibernate, JPA, … A particular group of plugins have been integrated • Free • Part of Eclipse project • Open source • New release each June • Independent plugins don’t work smoothly together

  11. WST Debugging Eclipse CAS classes Servers /conf Webproject Tomcat directory Tomcat process

  12. MyEclipse Eclipse CAS Project Java Source Tomcat, JBoss, … WebContent /webapps or /deploy WEB-INF/classes

  13. By any other Name • A “project” in Eclipse or Maven is a directory with source subdirectories that can be compiled to produce a JAR file or zipped up to produce a WAR file • A “Java Project” has source to compile. It can produce a program or a JAR library. • A “static Web project” is a bunch of HTML, CSS, and image files that you can deploy to any Web Server. It has no Java.

  14. By Any Other Name • A “dynamic Web application project” has a WEB-INF subdirectory with a web.xml file • A “WAR file” is a zipped up copy of the dynamic Web application, but the unzipped directory is also sometimes called a WAR too. • A “context” is the runtime environment created by the Web server to run the code in a dynamic Web application

  15. Ganymede WST • Dynamic Web projects can only be created empty. A Java SE project cannot be converted into a dynamic Web project. The JA-SIG CAS source is an ordinary Java SE source project. • Create an empty dynamic Web project. Copy the cas-server-webapp contents. Configure the CAS project as a “library module” for the Web project . Finally, copy external JAR dependencies into the WEB-INF/lib.

  16. WST Runtime Magic • <Context docBase="casx" path="/casx“ source="org.eclipse.jst.jee.server:casx"/> • Get files from the dynamic Web project dir. • Get classes from the CAS compiler output directory. • No support for Maven dependencies.

  17. Create WST project Eclipse Library Project(CAS source) copy from cas-server-webapp projectthe src/main/webapp files and target/cas-server-webapp-3.3/WEB-INF/lib jars new dynamic Web proj dynamic web project (WAR) Tomcat /conf Tomcat directory Server

  18. MyEclipse • Good News: MyEclipse can add “dynamic Web application” behavior to an existing Java (SE) project. • Bad News: MyEclipse uses the WEB-INF/classes directory as a build work area, so the WebContent directory can’t be in cas-server-webapp • Copy cas-server-webapp source to an new WebContent directory

  19. MyEclipse Deployment • Web application is copied to the real external {tomcat}/webapps directory and the real external server configuration is started • Tomcat runs with normal environment, under with Eclipse debugging • Any problems can be fixed by standard Tomcat documentation and configuration • Application can also run under Tomcat without Eclipse

  20. Download Ganymede EE from www.eclipse.org/downloads

  21. Download MyEclipse 7.0 (M2 or later)

  22. Common Steps

  23. Add update sites Help – Software Updates – Available Software

  24. Subversion Windows-onlyNative Java 1.5 HL1.5 HL Win32 binaries PolarionSubversiveSVN Connectors EclipseSubversionTeam Provider Unix or Windows SVNKit 1.2.0

  25. SVN Repository Exploring

  26. Checkout • JA-SIG source repository looks like a tree of projects • Select the trunk or a tagged release and check out as a Java (SE) project

  27. Update Dependencies

  28. Maven: cas-server-core is a “project”Eclipse: cas-server-core/src/main/java is a “src dir”

  29. Build Path (GUI to .classpath)

  30. Build Path (GUI to .classpath)

  31. Package Explorer - Libraries

  32. WST in Ganymede EE

  33. WST New Dynamic Web Project

  34. New Dynamic Web Project Wizard

  35. Cut and Paste • Copy (cut and paste) the Web application files (cas-server-webapp/src/main/webapp/*) from the CAS source project to the WebContent directory of the new dynamic Web project • Click OK to replace the generated web.xml file in WEB-INF

  36. WST Java EE Module Dependencies

  37. Get the POM dependencies • “cd” to Workspace, CAS source project directory • run “mvn install” command • Refresh the Eclipse view of the project. • Go to cas-server-webapp/target/cas-server-webapp-3.3/WEB-INF/lib • Copy all the external JAR files (exclude the cas-server-*.jar files) to the WEB-INF/lib of the new dynamic Web project

  38. Validation • WST has validators for HTML, XML, etc. • Some CAS source files fail validation (headers, footers, etc.) • In WST, only option is to disable validation for the entire project.

  39. MyEclipse

  40. Add Web Project Capabilitiesto existing CAS project

  41. MyEclipse Wizard

  42. Adding Web capabilities • MyEclipse changes the default compiler output directory to WebContent/WEB-INF/classes • MyEclipse adds its editors and syntax filters to the project • MyEclipse adds the J2EE (1.4 or 5) package of libraries to the compiler classpath • There are now HTML and XML files with “errors”. [Right click the directories, select MyEclipse, Exclude from Validation]

  43. J2EE 1.4 Libraries

  44. Sanity Check • cas-server-webapp • will be used as the source for Maven • should reflect your production environment (probably on another host) • is associated through SVN to the ja-sig source • WebContent • used by Eclipse (tell SVN to ignore it) • reflects your local test Tomcat environment

  45. WEB-INF/classes • Source directories are compiled and classes are stored here • Data files (resources) are copied here • add “cas-server-webapp/src/main/webapp/WEB-INF/classes” as a MyEclipse “source” directory to get *.properties files • Put JUnit class files someplace else (/test-bin)

  46. Select one or more J2EE App Servers Exploded deployments are changed “on the fly” after save and compile.

  47. Application Server Buttons Run Application Server(Tomcat) Manuallyredeploy

  48. Start the Server

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