Welcome Welcome to our blog about all kind of topics that are related to software development. We blog about:
SOA, BPM, EDA, ECM and all the other buzz words. Beware some post might not be so common as you think. We are not scared to go against main stream thoughts.
Technologies like java, maven, springframework, OSGi and front end technologies and frameworks like jQuery, DWR, Flex.
Finally to make this happen we need tools and of course a Mac (well some of us do). So we blog about that as well.
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By jettro, on October 3rd, 2011
On my employers blog I wrote an article about cleaning up your local maven repository. It gets polluted with old snapshot artifacts easily. It also leaves a lot of build around if you release regularly. After cleaning up your local copy you start thinking about the repository on the server. Would that also become as big as your local one? Of course. Therefore we need to clean that one up as well.
In most of our projects we use Artifactory. It is nice that artifactory comes with a REST based api. The url’s can be a bit better and the content type of the response is not what I would expect. Still the documentation is good and lost of actions are possible. In this blog post I show you the basics of interacting with the REST api using groovy. Now let us shrink the repo.
Continue reading Cleaning up artifactory with a groovy script
By jettro, on August 1st, 2011
Ever looked at the space used by your maven repository? Think that this is to much? Start reading the blog post I wrote on my employers blog about a groovy script that you can use to clean your local maven repository. It removes old snapshots stored in your repo as well as old versions [...]
By jettro, on January 4th, 2011
The new year has started, with it comes one of the last opportunities to look back at 2010. So what happened, what did I try out, what did I like and what didn’t I like. I also want to have a short look at what you liked, based on the number of visitors.
This post will nog contain new technical stuff, only old stuff 
Continue reading Recap of the year 2010
By jettro, on September 8th, 2010
I am a experienced maven user. Sometime I love it, sometimes I hate it. I like it a lot better than ant, but in some situation you would like maven to be easier and more descriptive. The past year there was a lot of fuzz about Gradle. This would give you the best of ant as well as the best of maven, and even more. My first encounter was not very positive, but I kept it in my mind to try it later with a more serious project. This blogpost is about that second more serious try. It will not teach the gradle experts anything, but it will be an easy introduction in to what gradle has to bring for people that are just interested in gradle.
Continue reading My first steps with Gradle: creating a multi module java web project and running it with jetty.
By jettro, on June 20th, 2010
In my previous post, “Using JMX within a spring application“, I talked about monitoring your application with jmx. I discussed exposing beans with spring. At one of my current projects I am having problems exposing jmx through the default jmxrmi protocol. In his whitepaper about jmx, Allard mentiones another protocol, jmxmp. Spring has support for this remoting protocol as well. Therefore I wanted to try this out.
Another thing I wanted to experiment with is creating a groovy client. The technique with interfaces and proxies with spring as described in my previous post is a lot of work when you are interested in a little bit of data. Therefore I wanted to see if using groovy is easier.
This blog post discusses these two topics with respect to JMX.
Continue reading Exposing jmx through jmxmp and reading the jmx data with groovy
By jettro, on April 16th, 2010
In this post we focus on getting the task based user interface. We have the basic building blocks in the application, but the screens are a bit stupid. How many applications would you create where you have to manually copy the identifier of a contact to an address when you want to register an address for this contact. Well in the current version of the application this is what you really have to do.
What are the tasks that we focus on right now:
- Create a new contact
- Remove a contact
- Change the name of a contact
- Register an address of a certain type for a specific contact
- Remove an address from a contact
But before we step into creating the front-end, we install some plugins that I discussed in previous posts.
Continue reading Use Grails and Axon to create a CQRS application (part II)
By jettro, on April 8th, 2010
 Allard has been working on a new framework to make it easier to create a CQRS application. CQRS is short for Command Query Responsibility Segregation. An architecture that separates data sources for storing state and querying data. The query datasource should be easy to use when creating screens. The framework Allard created is the Axon Framework. This framework makes it a lot easier to use commands, events, event sourcing. If these terms are not known to you, I suggest you start reading the reference manual that comes with axon.
 What does grails do in this picture. Isn’t grails about rapid application creation? Well, yes. It is a good platform to rapidly create web applications using the groovy language and still be able to use existing libraries. Personally I really like the Gorm library of grails. I think that gorm would be an excellent choice to wrap the query datasource. Of course the gsp technology and the groovy language are nice to have when working with the web applications as well.
In this blog post I’ll discuss the integration between grails and axon. How can we create an application with grails that makes use of Axon to implement CQRS. I’ll discuss the way to create commands and send these to axon. I’ll also discuss responding to events coming from axon. First I have to show some aspects of a grails project that you need to know before you can use Axon. I’ll try to take you with me when I take the steps to create a good integration between Axon and Grails.
Continue reading Use Grails and Axon to create a CQRS application (part I)
By jettro, on April 5th, 2010
I have big plans with groovy. After playing around with grails and doing some groovy scripting I was sure. I want more groovy. To be able to do more with groovy, I needed to learn more about groovy. One way to do this is to start reading and experimenting. This blog post discusses a few experiments as well as some of the learning sources.
Continue reading Doing more with groovy
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