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Software As If It Matters

David Dossot

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Top Stories by David Dossot

The rabbit is out of the hat: I'm indeed working on a new book. It's called "RabbitMQ Essentials" and is published by PackT Publishing. Yes, you're reading right, after Mule, it's now RabbitMQ's turn! Clearly, I'm specializing in writing about animal-named technologies. (C) Kallisto Stuffed Animals Why writing yet another book about RabbitMQ? After all, there are already several very excellent books on the subject out there. I think Ross Mason gave the best answer to this question on Twitter: Let me further articulate the reasons why I decided to embark on this new book project while the ink on Mule in Action is still wet: RabbitMQ is a great piece of open source technology and I think it can use all the coverage it can get. From the get go, RabbitMQ has been built with the idea to make things right: it's a breeze to install and configure. Adding extra plug-ins is a no-... (more)

ESB Testing Strategies with Mule

To be able to do anything useful, an ESB must be configured with all sorts of parameters, from endpoint connection URIs to message transformation scripts to content-based routing definitions. Moreover, ESBs like Mule can host custom components, which will process messages and perform user-specific actions on them. Deploying a new version of an ESB configuration raises the question of whether it will break anything. How can we build confidence that everything will be just fine? If unit testing did it for standard software development, what can it do in the realm of the ESB? Since... (more)

The Holy Grail of Persistence?

One of the very first CTO-grade decision I had to take in the making of Snoget was to pick what would become our main transactional persistence engine. Since we're using Erlang exclusively for our production servers, the solution seemed easy: use Mnesia. But I settled for PostgreSQL. At this point, anyone who's been dealing with O/R mapping (like Ted Neward who said: "Object/relational mapping is the Vietnam of Computer Science"), should cry fool: Mnesia would offer me persistence without any impedence mismatch with the application runtime environment and I preferred a SQL databa... (more)

RSB (R Service Bus) at the Vancouver R Users Group

R Service Bus View more presentations from David Dossot ... (more)

CRaSH for Mule, an Introduction

This blog is the formal introduction to the CRaSH console for Mule on which I've been working for the past month or so. I've decided to interview myself about it because, hey, if I don't do it, who will? What is CRaSH for Mule? It is a shell that is running embedded in Mule and that gives command-line access to a variety of Mule internal moving parts. It's built thanks to the excellent CRaSH project, a toolkit built by Julien Viet and sponsored by eXo Platform, which allows the easy creation of embedded shells. What can we do with it? Well, it's easy to find it out. Let's connect ... (more)