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Use reactive streams API to combine akka-streams with rxJava


Just a quick article this time, since I’m still experimenting with this stuff. There is a lot of talk around reactive programming. In Java 8 we’ve got the Stream API, we got rxJava we got ratpack and Akka has got akka-streams. The main issue with these implementations is that they aren’t compatible. You can’t connect the subscriber of one implementation ...

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Spring boot war packaging


Spring boot recommends creating an executable jar with an embedded container (tomcat or jetty) during build time and using this executable jar as a standalone process at runtime. It is common however to deploy applications to an external container instead and Spring boot provides packaging the applications as a war specifically for this kind of a need. My focus here ...

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Slides from Nuts and Bolts of WebSocket at #Devoxx 2014


Peter Moskovits from Kaazing (@peterm_kaazing) and I gave a university talk at Devoxx 2014 on Nuts and Bolts of WebSocket. The slides are now available at:                       The entire session is recorded and will be made available on in the coming weeks/months. The complete script for the demo is available ...

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CallSerially The EDT & InvokeAndBlock (Part 1)


We last explained some of the concepts behind the EDT in 2008 so its high time we wrote about it again, there is a section about it in the developer guide as well as in the courses on Udemy but since this is the most important thing to understand in Codename One it bares repeating. One of the nice things ...

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The State of REST


The S in REST stands for State. Unfortunately, state is an overloaded word. In this post I’ll discuss the two different kinds of state that apply to REST APIs. Applications The first type of state is application state, as in Hypermedia As The Engine Of Application State (HATEOAS), the distinguishing feature of the REST architectural style. We must first understand ...

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Someday Is a Lie


“You don’t have a time machine— you’re living the same twenty-four hours we all are. You can barely make it through your day with all the current things there are to do; when is “someday” finally going to arrive? The answer is, of course, never. Today is it.”  – Andrew J. Mellen, “Unstuff Your Life!” If you’re a software professional, you’ve probably ...

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Independent Contracting: How to Get There


The concept of self-employment is appealing for many technologists, but the path to getting there isn’t always clear. Independent contractors may cite several attributes of their work that they find preferable to traditional employer/employee relationships. The allure of money is obvious, but independents may also be drawn to project variety, an emphasis on new development over maintaining existing projects, and additional control over work/life balance. Independent contracting has ...

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