Spring Integration 2.1 has been released! You can download it here or configure your Maven POM. This version is the result of more than one full year of work, and the team has resolved hundreds of issues since Spring Integration 2.0 was released. Interestingly, it has been 4 years and a few days since the Read more…

In my second blog about Grails and Cloud Foundry I introduced a variant of the Grails Twitter example that could be hosted on CloudFoundry.com At the time I mentioned that full text search using the Searchable plugin would limit you to a single application instance because the search indices would be unique to each instance. Read more…

Last week the availability of RabbitMQ as a service on Cloud Foundry was announced. Any application running on Cloud Foundry may now send and receive messages via a RabbitMQ broker that can be provisioned as a service with a single command (e.g. 'vmc create-service rabbitmq'). Instances of the messaging service may be shared between applications, Read more…

Asynchronous applications can sometimes be a challenge while you're developing them since you usually need two separate components to see the full message publication and consumption lifecycle. It often happens that you write a consumer that can dump messages to System.out or your log file, just so you can make sure your publisher is doing Read more…

As new applications take advantage of the scalability benefits of message brokers like RabbitMQ and cloud-scale datastores like Riak, it's inevitable that the two should become fast friends (the kind who actually talk to each other in person rather than the kind whose only contact is through Facebook). So many of the applications we find Read more…

Designing a good routing topology for a highly-scalable system can be like mapping a graph. Many things need to be considered, for instance the problem, constraints of the environment, those of the messaging implementation, and performance strategies. What we often run up against is a lack of flexibility and expressivity in fitting routing to our Read more…

In this post, we will introduce the core concepts of messaging, as well as the rich support for various types of messaging that the Spring framework and its sister projects provide. What is Messaging? To best explain this, I'll paraphrase the example offered by the groundbreaking Enterprise Integration Patterns book by Gregor Hohpe and Bobby Read more…