How to create a OSGi Servlet that runs on a Domino server using code from another plugin. Extra is a web app servlet which runs on every other Java Server

1. Let’s serve your data
Frank van der Linden

2. About me
• Freelance Java and web developer, with XPages
experience
• Owner of Elstar IT
• Frequent (trail)runner

3. Roadmap
• Theory
• Prepare
• Develop
• Test
• Deploy

4. Theory

5. What is a servlet
• Java program to extends the capabilities of a server
• Servlets provide a component-based, platform-
independent method for building Web-based
applications
• Servlets run in web containers, Servlet containers

6. Structure and architecture

7. Lifecycle

8. XAgent a sort of servlet

9. Servlet in NSF
• excellent series of Eric McCormick
• https://edm00se.io/servlet-series/

10. Servlet as OSGi plugin
• run server wide
• Code can be shared with other processes like
DOTS, XPages.
• With a little change it run also on other Java
servers, like Tomcat, WildFly(a.k.a. Boss) and
Websphere

11. OSGi architecture

12. Prepare

13. Prepare
• Download IDE e.g. Eclipse JEE
• Set Target platform
• Install PDE Debug plugin
• Create com.ibm.notes.java.api project

14. Target platform

15. Target platform

16. Target platform

17. PDE plugin

18. PDE plugin

19. PDE plugin

20. com.ibm.notes.java.api

21. Develop

22. my goals
• Create a Shared code plugin
• Create a web app plugin to which use the shared
code
• Create a OSGi servlet which also use the shared
code

23. Set up

24. Set up

25. Develop

26. Develop

27. Develop

28. show some code

29. Logging
• Build in via java.util.logging.Logger
• Log an error to the console….

30. Logging
• ….log to a file, by adding a (File) handler

31. Test

32. Test

33. Test

34. Test

35. Test
• tell http quit
• load http

36. Warning
• After testing remove the pre.launch.ini from your
workspace directory of the Domino server

37. Deploy

38. Deploy
• 2 ways of deployment
• as deployable jar
• as an update site.

39. As deployable jar
• Export as deployable plugin…
• Put the jar in the correct directory on the server
• tell http quit —> load http

40. As update site
• Create Feature project, add plugin projects
• Create Update site project, add Feature project
• Add update site to update site database
• tell http quit —> load http

41. let’s deploy it

43. Thank you
https://bitbucket.org/flinden68/lets-serve-your-data