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Top 20 Online Programming Courses to Boost your Career

Do you want to know what is the best investment you can make with your time and money? Knowledge As a software developer you should be constantly acquiring new skills. This is the best way to advance your career and enjoy the rewards (monetary, emotional etc.). Towards that direction you should be reading books, devouring technical articles and staying informed ...

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Java and Docker: Now and the Future

Sharat Chander‘s blog post Official Docker Image for Oracle Java and the OpenJDK Roadmap for Containers provides a high-level overview of the “Official Docker Image for Oracle Java,” an introduction to Docker and why containers like Docker are desirable, and a peek at things to come for Java on Docker. The post also provides a link to the “Docker image ...

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Apache Spark RDD and Java Streams

A few months ago, I was fortunate enough to participate in a few PoCs (proof-of-concepts) that used Apache Spark. There, I got the chance to use resilient distributed datasets (RDDs for short), transformations, and actions. After a few days, I realized that while Apache Spark and the JDK are very different platforms, there are similarities between RDD transformations and actions, ...

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Agile Cloud-to-Cloud Integration with iPaaS, API Management and Blockchain

Cloud-to-Cloud integration is part of a hybrid integration architecture. It enables to implement quick and agile integration scenarios without the burden of setting up complex VM- or container-based infrastructures. One key use case for cloud-to-cloud integration is innovation using a fail-fast methodology where you realize new ideas quickly. You typically think in days or weeks, not in months. If an ...

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Java 9 Module System (Jigsaw) @ LJC’s HackTheTower

Today we spent half a day, on our first HackTheTower event. Members of London’s Java User Group (aka LJC),  gathered on the 26th floor of  ‘SalesForceTower’  (aka Heron Tower) at the City of London, invited by Heather VanCura is the Chair of the Java Community Process Mani Sarkar, LJC Simon Maple, Director of Developer Relations at ZeroTurnaround to talk and learn about one ...

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Creating Smaller Java Image using Docker Multi-stage Build

Two of the announcements at DockerCon 2017 directly relevant to Java developers are: Docker Multi-stage build Oracle JRE in Docker Store This blog explains the purpose of Docker multi-stage build and provide examples of how they help us generate smaller and more efficient Java Docker images. Just show me the code: github.com/arun-gupta/docker-java-multistage. What is the issue? Building a Docker image for a Java application typically involves building the application ...

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Spring Boot, @EnableWebMvc And Common Use-Cases

spring-interview-questions-answers

It turns out that Spring Boot doesn’t mix well with the standard Spring MVC @EnableWebMvc. What happens when you add the annotation is that spring boot autoconfiguration is disabled. The bad part (that wasted me a few hours) is that in no guide you can find that explicitly stated. In this guide it says that Spring Boot adds it automatically, ...

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Containers For .NET Developers

This is the first post in a series of articles about modern tooling and techniques for building distributed systems. In this post, I will show how to use Docker for Windows to set up an ELK (Elasticsearch, Kibana, Logstash a.k.a. Elastic) server that we are going to use in future articles. The series is particularly geared toward traditional .NET developers. ...

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Spring Web-Flux – Functional Style with Cassandra Backend

spring-interview-questions-answers

In a previous post I had walked through the basics of Spring Web-Flux which denotes the reactive support in the web layer of Spring framework. I had demonstrated an end to end sample using Spring Data Cassandra and using the traditional annotations support in the Spring Web Layers, along these lines: ... import org.springframework.web.bind.annotation.*; import reactor.core.publisher.Flux; import reactor.core.publisher.Mono; ... @RestController @RequestMapping("/hotels") public class HotelController ...

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