Let's server your Data

Let’s serve your data

Frank van der Linden

About me• Freelance Java and web developer, with

XPages experience

• Owner of Elstar IT

• Frequent (trail)runner

Roadmap• Theory

• Prepare

• 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 a little change 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

Target platform

Target platform

Target platform

PDE plugin

PDE plugin

PDE plugin

com.ibm.notes.java.api

Develop

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

Set up

Set up

Develop

Develop

Develop

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

• as deployable jar

• as an update site.

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

let’s deploy it

Thank you

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