About Tomasz Nurkiewicz

Java EE developer, Scala enthusiast. Enjoying data analysis and visualization. Strongly believes in the power of testing and automation.

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SiftingAppender: logging different threads to different log files

One novel feature of Logback is SiftingAppender (JavaDoc). In short it’s a proxy appender that creates one child appender per each unique value of a given runtime property. Typically ...
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WatchService combined with Akka actors

WatchService is a handy class that can notify you about any file system changes (create/update/delete of file) in a given set of directories. It is described nicely in the official ...
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Synchronizing transactions with asynchronous events in Spring

Today as an example we will take a very simple scenario: placing an order stores it and sends an e-mail about that order:                   @Service class ...
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Scala traits implementation and interoperability. Part I: Basics

Traits in Scala are similar to interfaces, but much more powerful. They allow implementations of some of the methods, fields, stacking, etc. But have you ever wondered how are they ...
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FitNesse your ScalaTest with custom Scala DSL

This article won’t be about FitNesse. As matter of fact I don’t like this tool very much and it seems to be loosing momentum, judging by the traffic on an official mailing ...
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Promises and futures in Clojure

Clojure, being designed for concurrency is a natural fit for our Back to the Future series. Moreover futures are supported out-of-the-box in Clojure. Last but not least, Clojure is ...
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Promises and Deferred objects in jQuery and AngularJS

Series of articles about futures/promises without JavaScript would not be complete. Futures (more commonly named promises in JS land) are ubiquitous in JavaScript to the point where ...
spring-interview-questions-answers

DeferredResult – asynchronous processing in Spring MVC

DeferredResult is a container for possibly not-yet-finished computation that will be available in future. Spring MVC uses it to represent asynchronous computation and take advantage ...
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Futures in Akka with Scala

Akka is actor based, event-driven framework for building highly concurrent, reliable applications. Shouldn’t come a surprise that concept of a future is ubiquitous in a system ...
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Advanced ListenableFuture capabilities

Last time we familiarized ourselves with ListenableFuture. I promised to introduced more advanced techniques, namely transformations and chaining. Let’s start from something straightforward. ...
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