Embedding Jasper

Bytom@khubla.com June 17, 2013May 19, 2013

Jasper is the JSP compiler inside Tomcat. For reasons, mainly of curiosity, I wanted to build a Pragmatach plugin which exposes Jasper. Pragmatach supports some template engines such as FreeMarker, ThymeLeaf and Velocity, but I thought Jasper would be a good addition.

I chose to use Tomcat 6, mainly because Tomcat 7 uses Servlet 3.0. Pragmatach is currently on Servlet 2.5 . Luckily, there is a really helpful example of compiling JSPs right inside Tomcat; the JspC shell. JspC is a simple command-line executable which can consume jsp files and produce both .java files and .class files.

The code I ended up with, is here.

Java

Servlet mocking with Mockito
Bytom@khubla.com May 25, 2013May 12, 2013

When writing custom servlets, it can be quite useful to unit test them. In my case, I used a combination of testng and mockito. The basic idea is simple; mock a HttpServletRequest, and a HttpServletResponse and pass them to the custom servlet. There is a bit more too it, so here’s an example. final HttpServletRequest…

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Java

Reading Paradox Files
Bytom@khubla.com April 20, 2014April 20, 2014

Back in the day, Paradox was a pretty amazing database. I recently had a reason to read some Paradox files for a friend, who had a client with a Paradox database. They needed their data out of the database to insert into something more modern. Googling for the file format of a Paradox DB didn’t…

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Pragmatach

Pragmatach
Bytom@khubla.com June 1, 2013May 15, 2013

Firstly, here’s the site, and here’s the code. There’s a slideshow, here. Pragmatach is a Java-based web development platform that I wrote, based on ideas from Struts2, Play, JSF2 and Grails. My goals in writing it were: Configuration via annotations. I wanted to be able to fully configure a controller using only annotations and…

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Java

Bioinformatics data
Bytom@khubla.com April 28, 2014May 2, 2014

I recently had a chance to learn a little about Bioinformatics, and ended up browsing the NIH’s database of genomes here. Inside the genome data for any particular strain of a species, you’ll find various files with file extensions like “ffa”, “fna”, “ffn” and “frn”. These are FASTA files. If you’d like an example, here’s…

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Java

khubla.com Java code released to Maven Central
Bytom@khubla.com September 10, 2016

I was recently asked to release some of my code to Maven Central, and therefore had to figure out how to do it. I’ve now released these khubla.com libraries: cBean Pragmatach antlr4test-maven-plugin OLMReader simpleIOC ParadoxReader The maven coordinates for each are documented on the github pages.

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Java

TNT
Bytom@khubla.com May 19, 2014

If you haven’t read this book, I highly recommend it. I discovered it in high school and finally purchased my first copy at the now-gone Duthie Books in Kitsilano. Without going into the details of the book, the author uses a simple Peano arithmetic called Typographical Number Theory (TNT) to illustrate some of his points. An example…

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