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A Quick Primer on Microservices By Omed Habib Microservices are a type of software architecture where large applications are made up of small, self-contained units working together through APIs that are not dependent on a specific language. Each service has a limited scope, concentrates on a specific task and is highly independent. This setup allows IT managers and developers to build systems in a modular way. In his book, "Building Microservices," Sam Newman said microservices are small, focused components built to do a single thing very well. Martin Fowler's "Microservices - a Definition of This New Architectural Term" is one of the seminal publications on microservices. He describes some of the key characteristics of microservices as: Componentization: Microservices are independent units that are easily replaced or upgraded. The units use services to communicate w... (more)

Shrink-Url - Use PowerShell To Shrink Your Urls

Shrinking your Url’s is all the rage nowadays.  If you are on Twitter, then odds are you have used one.  Despite CodingHorror’s distaste for them in his recent blog post on Url Shorteners: Destroying the Web since 2002, they are a fact of life when we live in a world of 140 character status updates. So what’s a URL shrinking service anyway?  Well, to put it simply, you supply them with a URL, they then supply you with a shorter URL containing a lookup “key”.  When future requests are made to this shorter URL, connections are routed to that services website where they convert the... (more)

Ellison at JavaOne: Myths About JavaFX, Android, and J2ME

At JavaOne, Larry Ellison has made some very encouraging statements about Oracle’s commitments to Java, JavaFX, and the mobile developer market. It is certainly good news that Oracle (i.e., Larry) sees the significance of the Java platform in its integrality. However, there are many misunderstandings about the relationship between Java, JavaFX, and Android that even confuse the new Java owner. Here are some clarifications. 1) JavaFX is NOT Java Obviously, from a marketing standpoint, JavaFX is branded as Java; however, technically JavaFX is a language by itself, which happens to be... (more)

Accessing Spring Beans from the BIRT Designer

Java Developer Magazine on Ulitzer Recently I have described methods that can be used to access Spring Beans from the BIRT Engine. These examples are intended to be illustrative and not comprehensive. More on BIRT and Spring Calling Spring Objects from BIRT Expressions and Event Handlers In both of these examples I used the BIRT engine to retrieve Spring objects within the scripting environment. In this post I am supplying an example that illustrates how to implement your own menu in the expression builder, so Spring objects can be called within the BIRT Designer. This will allow... (more)

Automation through workflow state

The benefits of automation are well understood: more agile service provisioning, faster time to insight when there are issues, and a reduction in human error as manual interaction is reduced. Much of the premise behind long-term SDN architectural advantages is steeped in the hope that SDN will help enable and ultimately promote automation. But while centralizing control has significant operational advantages, by itself, it doesn’t actually address the most important requirement for automation. If automation is going to be more than just reducing keystrokes, there will have to be... (more)

GlassFish, Open MQ, and the Ear-Eye Problem By @YFain

GlassFish, Open MQ, and the Ear-Eye Problem Yesterday I’ve been updating code examples for the messaging chapter for the 2nd edition of my Java book. While doing this, I ran into an issue, then fixed it, but the cause and the solution illustrate the situation that we call “Ear-Eye”, which comes from and old joke popular in the USSR, where TV propaganda was stating that everything is great while people had hard time finding food in store. Here’s the joke: An old lady comes to a medical center saying that she needs to see an Ear-Eye specialist. The receptionist replied, “There is n... (more)