maven

In Deep: The bill of materials in Maven

Reading Time: 3 minutes Lately while working with Spring WebFlux, I came across this really helpful concept of the bill of materials also known as BOM, a concept not really limited to Spring at all. BOM is one of the few ways Spring helps us forget about issues related to transitive dependencies and focus solely on our project requirements. So when we generally create a large scale project with Continue Reading

Maven Simplified

Reading Time: 4 minutes This blog will provide you with the basics of maven, its importance and its life cycle. For installation, you can refer here and then continue with this blog. Why a Build tool? Initially, while learning and developing small projects, we compile limited classes and include specific JAR libraries on our own which are required to build our project. This seems very difficult in large projects Continue Reading

How to create your first docker images and run it in a docker container via command line?

Reading Time: 3 minutes So, Don’t you hate it when you are into deployments and don’t know how to go about docker and stuff. Today, we will talk about creating docker images and running it in a container via docker command line. It might sound frustrating and not easy but It’s possible and I will show you how. To make things easier from the beginning I have divided the Continue Reading

Developers Needs SDKMAN Not Super-Man

Reading Time: 4 minutes Every developer has pain for setup development environment to his/her machine with lots of the setups. Sometimes, the pain goes beyond while we need to test same application on multiple versions of SDKs or virtual machines. If you are a Mac user, you have the best option called brew installer. But if you are Linux user, your pain is unpredictable. We are JVM stack developers Continue Reading

Cinnamon: Way For Monitoring & Metrics Generation for Akka ActorSystem

Reading Time: 2 minutes We are developing huge applications and deployed on multiple virtual machines and clusters. For monitoring applications, we need to enable logs into our application and analysis that logs with help of some tools like elastic stack. But !! what if we need to check health of application on virtual machines and clusters? For that, we are using several Metrics for system health check like Gauges, Continue Reading

Let’s Consume a Micro-service

Reading Time: 2 minutes Micro-services architecture is being widely adopted and guess what, Lagom is the most efficient way to achieve it.  While creating micro-services, we usually need to interact with other micro-services and consume their data. So the idea behind this blog is to guide you through the steps needed to integrate an unmanaged service. Apparently, Integrating an external API in Lagom is challenging at first but it Continue Reading

Tutorial 2:Introduction on how to write a First Test Script in CUCUMBER

Reading Time: 3 minutes Hello Everyone, In this series of blog it’s time to look into how to write test cases in cucumber and execution of these test cases.Follow these Steps for the Same. You can read the previous post related to installation of cucumber: here Step 1: We will use the test package to define the location of features (Resources folder), step definitions (Java folder) and other files. Then Continue Reading

Tutorial 1:Cucumber with java maven project

Reading Time: 2 minutes Hi Folks. From this Blog we will start a series of cucumber BDD tool .Before go through the cucumber We should know how to integrate cucumber with java maven project. To run Cucumber test with Java, following are the steps. Step 1. Install Eclipse IDE -Make sure java should already be installed on your machine. Step 2. Then Create the New Project in Eclipse IDE by following steps: Continue Reading

Solr with Java: A basic hands-on with SolrJ

Reading Time: 2 minutes What is Apache Solr: Apache Solr is a search sever that includes the full-text search engine called Apache Lucene. It takes the piece of information (called documents) that are indexed according to the cores. When a query is performed, solr goes through the index and return the matching documents. Now let’s start the hands-on. Step 1: Install Solr from the following link. Step 2: Start Continue Reading

Lightbend Monitoring: Lagom

Reading Time: 3 minutes Lightbend Monitoring provides insight into applications built with Lightbend technologies. It does so by instrumentation of frameworks like Akka and Lagom. The instrumentation is done by a Java agent (called Cinnamon) that runs when your application is starting up. It collects information in runtime based on the configurations that you have provided. In this post, we would show the Circuit Breaker (CB) monitoring with Lagom. Continue Reading

Application compatibility for different Spark versions

Reading Time: 3 minutes Recently spark version 2.1 was released and there is a significant difference between the 2 versions. Spark 1.6 has DataFrame and SparkContext while 2.1 has Dataset and SparkSession. Now the question arises how to write code so that both the versions of spark are supported. Fortunately maven provides the feature of building your application with different profiles. In this blog i will tell you guys how to Continue Reading

Introduction to database migrations using Flyway

Reading Time: 3 minutes Let us first understand why are database migrations necessary? Assume that we have a project called Shiny and it’s primary deliverable is a piece of software called Shiny Soft that connects to a database called Shiny DB. We not only have to deal with one copy of our environment, but with several. So the simplest view of our problem will translate to:

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