Let's serve your data

Let’s serve your dataFrank van der Linden

About me• Freelance Java and front end developer• Owner of Elstar IT• Try to do some running and mountain biking

Roadmap• Theory• Prepare• Set up• Develop• Test• Deploy

Theory

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

Structure and architecture

Lifecycle

XAgent - a sort of servlet

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

Servlet as OSGi plugin• run server wide• Code can be shared with other processes like DOTS, XPages.• With small changes, it run also on other Java servers, like

Tomcat, WildFly(a.k.a. Boss) and Websphere

OSGi architecture

Prepare

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

*See Appendix A for steps to prepare your IDE

Develop

goals• Create a Shared code plugin• Create a web app plugin which runs on a Java server• Create a OSGi servlet which run on a Domino server

* See Appendix B for setup projects

my goals

Shared plugin

Domino - Servlet

Web app - Servlet

show some code

Logging• Build in via java.util.logging.Logger

• Log an error to the console….

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

Test

Test

Test

Test

Test

• tell http quit• load http

Warning• After testing remove the pre.launch.ini from your workspace

directory of the Domino server

Deploy

Deploy• 2 ways of deployment to Domino

• as deployable jar• as an update site.

• Add to web server

As deployable jar• Export as deployable plugin…

• Put the jar in the correct directory on the server

• tell http quit —> load http

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

Deploy to web app

let’s deploy it

Thank you

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

Appendix A

Target platform

Target platform

Target platform

PDE plugin

PDE plugin

PDE plugin

com.ibm.notes.java.api

Appendix B

OSGi Plugin set up

OSGi Plugin set up (servlet)

OSGi Plugin set up (servlet)

OSGi Plugin set up (servlet)

Web app set up