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City-wide crowd management in Amsterdam

City-wide crowd management in Amsterdam

As most residents and visitors of Amsterdam know, every year more people are visiting Amsterdam, city wide events like GayPride, Koningsdag and MuseumNacht are getting bigger and more frequent, putting more strain on the city’s infrastructure and all people living in the city center. That’s why this November 7th, Amsterdam Marketing organized the Museumn8 hackathon […]

A wrinkle in time

Leap second

I clearly remember the morning of Sunday July 1, 2012, almost three years ago. I was at church, actually, when I got a call from one of our clients: “The website doesn’t seem to be working.” All I could check at that point was that, indeed, the website was not responding. So I called our sysadmin, who […]

Documenting your REST APIs

Whenever you deliver some API that is to be consumed by another party, you will get the inevitable question of providing documentation. Probably every developer’s least favorite task. In Java there is javadoc, but that doesn’t cut it if you are delivering a Web Service API. In that realm we already know WSDL for SOAP based […]

ANWB Big data Proof of Concept

ANWB Big data Proof of Concept

At the ANWB people are constantly trying to improve the services they provide. One of these services is to provide traffic information. In the Netherlands the National Data Warehouse for Traffic Information (NDW) provides an enormous database of both real-time and historic traffic data. This data comes from many different sources and is available as open […]

Integrating Flyway In A Spring Framework Application

Integrating Flyway In A Spring Framework Application

This post is about how to integrate Flyway into a Spring/JPA application for database schema migration. To skip all the preambles and get straight to the instructions, jump to Project’s Dependencies Set-up Flyway is a database migration tool which helps do to databases, what tools like git/svn/mercurial does for source code…which is versioning. With Flyway you […]