Home » Author Archives: Attila Mihaly Balazs

Author Archives: Attila Mihaly Balazs

A persistent KeyValue Server in 40 lines and a sad fact

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Advent time again .. picking up Peters well written overview on the uses of Unsafe, i’ll have a short fly-by on how low level techniques in Java can save development effort by enabling a higher level of abstraction or allow for Java performance levels probably unknown to many. My major point is to show that conversion of Objects to bytes ...

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Creating a REST API with Spring Boot and MongoDB

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Spring Boot is an opinionated framework that simplifies the development of Spring applications. It frees us from the slavery of complex configuration files and helps us to create standalone Spring applications that don’t need an external servlet container. This sounds almost too good to be true, but Spring Boot can really do all this. This blog post demonstrates how easy ...

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JDK 9 – a letter to Santa?!

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As everybody knows, winter (especially the time before Christmas) is a proper time for dreaming and hoping a moment when dreams seem to be touchable. A moment when children and grown-ups write on paper or in their thoughts fictive or real letters to Santa Claus, hoping their dreams will become reality. This is catchy, as even the people behind OpenJDK ...

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Thread local storage in Java

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One of the rarely known features among developers is Thread-local storage.  The idea is simple and need for it comes in  scenarios where we need data that is … well local for the thread. If we have two threads we that refer to the same global variable but we wanna them to have separate value independently initialized of each other. ...

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Developers want to be heard

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How often have you been in this situation? You’re in a meeting with the team and you’re all discussing the implementation of a new feature. The group seems to be converging on a design, but there’s something about it that feels off, some sort of “smell”.  You point this out to the team, perhaps outlining the specific areas that make you uncomfortable. ...

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How (NOT TO) measure latency

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Latency is defined as time interval between the stimulation and response and is a value which is of importance in many computer systems (financial systems, games, websites, etc). Hence we – as computer engineers – want to specify some upper bounds / worst case scenarios for the systems we build. How can we do this? The days of counting cycles ...

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Reactive Cassandra

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Or an adventure on reading data reactively from Cassandra. Overview Let’s first try to define what reactive means from programming point of view. Functional reactive programming is programming paradigm for reactive programming using the building blocks of functional programming. Functional programming is a programming paradigm, a style of building the structure and the elements of computer programs, that treats computation, ...

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