Andrej Koelewijn

My mule configurations files often contain proxy settings for connectors that are used to communicate to the outside world. However during development and testing I can’t use the normal proxy, since i’m mocking the outside world. Littleproxy is a java proxy that you can use to replace the real proxy with a testing proxy. This [...]

When I tried to use the following example by David Dossot mule-agent-based-sync-http-request-handling my jms endpoint times out. In the log i can see that the response message is created, but the outbound endpoint never receives it. After some googling i found the following blog post by Claude Mamo: ReplyTo in a Mule flow. Adding the [...]

Here is a quick example how you can access you can access properties loaded using spring using the Mule expression language.

The next web linked to a really interesting presentation by Amazon’s CTO today: Amazon’s CTO: “Amazon is a technology company. We just happen to do retail”. Lots of interesting information here: Scrum & Agile – small teams, fast innovation, all teams are customer focussed. How to scale. Architecture – what’s important when architecting large scale [...]

Even if you are not planning to put your applications in the cloud, it’s a good learning experience to experiment with Amazon AWS Cloud. It enables you to easily and cheaply experiment with different infrastructure and deployment scenario’s. It’s also full of best practices regarding high availability, scaling, stateless servers, SOA architecture principles, security, etc. [...]

Here’s a simple groovy script to show deployed Apache Camel routes. It uses JMX to query the description of routes available. Here’s an example of the output generated by this script:

The following groovy script displays a list of queues in ActiveMQ with some statistics per queue.

The following groovy script can be used to list all Camel routes on a running servicemix. Per route it will display state of the route, and some statistics.

Not too long ago enterprise applications looked like this. All data stored in a single database. Data integrity was no issue, database links between all tables made sure of that. You could easily link between tables in different domains. For example, orders would link to products and customers. Unfortunately, most companies didn’t have a single [...]

A few weeks ago there was a question about REST on the SOA-BPM Enterprise Methodology Group about The End Of The Road For Web Services. I posted the following reply to the list. It’s my view on the whole SOAP versus REST discussion. (short summary: somebody decided to fix http for rpc usage, without understanding [...]