Author Archives: Harmeet Singh(Taara)

Building Microservices Based Enterprise Applications in Java Using Lagom – Part I


As we know, now days, most of the enterprise applications design as a “Microservices Architecture” because of scalability, sharding, loosely-coupling and many others reasons are there. On the other hand  JavaEE help us for building an Enterprise Applications. As we … Continue reading

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Short Interview With SMACK Tech Stack !!!


Hello guy’s, today’s we conduct short interview with SMACK about its architecture and there uses. Let’s start with of some introduction. Interviewer: How would you describe your self ? SMACK: I am SMACK (Spark, Mesos, Akka, Cassandra and Kafka) and … Continue reading

Posted in Akka, Apache Kafka, apache spark, big data, Cassandra, Scala, Spark | Tagged , , , , , , , , , , , , | Leave a comment

Akka Persistence using MongoDB – Part I


Akka is a powerful actor based tool kit for Concurrency, Parallelism and Clustering. But for every concurrent applications, Akka actors are not fit because Futures are another alternative for performing Concurrency. Most of the developers follow simple rules for using … Continue reading

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Kick-Off Java 9 (Project Jigsaw & ServiceLoader) Part – II


Java  comes with major changes and new surprises for developers. Major changes came in  Java 5 and Java 8, but now Java 9 will come with new mysteries and changes. In the last post we were discussing about Java 9 … Continue reading

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Play With Java ServiceLoader forget about Dependency Injection(DI) Frameworks


In most of the applications we are using Dependency Injection for loosely couple of our code. Some time, we just require simple DI, nothing else, for those, we need to include some of our DI frameworks like Spring, Google Guice … Continue reading

Posted in Java, Scala | Tagged , , , , | 3 Comments

Kick-Off Java 9 (Project Jigsaw) Part – I


Now a day’s monolithic applications comes into micro batches. Every micro batch independent from each others and deploy. Now the Java will come in this flavor using project Jigsaw Java 9 comes with great feature called “Jigsaw“, which modularize monolithic … Continue reading

Posted in Java, Scala | Tagged , , , , , , , | 2 Comments

Scala Future Under The Hood


In the previous post, i was discussing about Scala ExecutionContext. As we know, for multithreading we need to maintain thread pools using ExecutionContext and by default ForkJoinPool is used because for accessing “multi core” processor. There are multiple thread pools … Continue reading

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Java Executor Vs Scala ExecutionContext


Java supports low-level of concurrency and some of rich api’s which is just a wrapper of low-level constructs like wait, notify, synchronize etc, But with Java concurrent packages Scala have high level concurrency frameworks for “which goal to achieve, rather … Continue reading

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