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Notes: Microservices by Martin Fowler

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I just watched Martin Fowler’s talk about Microservices at XConf. Here are some of my notes and related thoughts. The talk is heavily based upon Martin Fowler and James Lewis’ article about Microservices, so you can find and read most of the information there. Characteristics of Microservices In his article, Fowler defines some characteristics that most of the already existing ...

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Using Netflix Hystrix annotations with Spring

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I can’t think of a better way to describe a specific feature of Netflix Hystrix library than by quoting from its home page: Latency and Fault Tolerance by: Stop cascading failures. Fallbacks and graceful degradation. Fail fast and rapid recovery. Thread and semaphore isolation with circuit breakers. I saw a sample demonstrated by Josh Long(@starbuxman) which makes use of Hystrix ...

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How to perform client side web performance testing in JMeter?

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In this article we will see how can we do client side performance testing using Jmeter Plugins. I will be using jmeter webdriver plugins. Before starting this topic, please have some basic information on client side performance testing from my previous post. So, lets get started:         Installation Install Jmeter and Plug ins from below links following ...

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Dependency injection pitfalls in Spring

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There are three injection variants in Spring framework: Setter-based injection Constructor-based injection Field-based injection Each of those mechanisms has advantages and disadvantages and there is not only one right approach. For example field injection:      

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Extending PrimeFaces CSV with Bean Validation

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Some of you already know that me and my co-author Mert Çalışkan are working on the 2. edition of the PrimeFaces Cookbook. The Packt Publishing allowed me to publish a small excerpt from one recipe of the new chapter “Client Side Validation”. It would help in letting the readers know about the book’s content. In this blog post, I would ...

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The IDE of choice for UltraESB – IntelliJ IDEA

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At AdroitLogic we have been using IntelliJ IDEA from a long time for development. It is found to be the best IDE for Java and related languages/technologies (it may be the choice for many other languages too, but my experience is mainly for Java and related technologies). The integration of Groovy and Grails of IDEA is awesome. The Data Source ...

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A reactive and performant Spray + Akka solution to “Playing with concurrency and performance in Java and Node.js”

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In my previous post I examined a fictitious trading engine and compared a Java based blocking solution to a Node.js based non-blocking solution. At the end of the post I wrote that: I suspect that following the recent success of Node.js, more and more asynchronous Java libraries will start to appear. Well such libraries already exist, for example: Akka, Spray, ...

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EE Servlet 3: Generating HTML output in Servlet

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If you just need to handle a handful of requests URI in your EE web module, then it might be easier to generate your own HTML response in your Servlet code instead of using a full blown template library. As part of my examples, I tried out a very simple Java DSL that generate html output when writing your own ...

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