Open Source Projects

ManageIQ - Discover, Optimize, and Control your Hybrid IT


ManageIQ is an open-source Management Platform that delivers the insight, control, and automation that enterprises need to address the challenges of managing hybrid IT environments.

Tink - Cryptographic library that provides an easy, secure, and agile API for common cryptographic tasks


Tink is a multi-language, cross-platform library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.. Most cryptographic operations such as data encryption, digital signatures, etc. can be done with only a few lines of code. Tink reduces common cryptographic pitfalls with user-centered design, careful implementation and code reviews, and extensive testing.

Hawkular metrics - Time Series Metrics Engine based on Cassandra


Hawkular Metrics is a metrics collection, aggregation, visualization framework. Hawkular is a set of Open Source projects designed to be a generic solution for common monitoring problems. The Hawkular projects provide REST services that can be used for all kinds of monitoring needs. The aim is to provide a generic solution that can be used for common monitoring problems.

Apache Jena - Java framework for building Semantic Web and Linked Data applications


Apache Jena is a Java framework for building Semantic Web and Linked Data applications. It interact with the core API to create and read Resource Description Framework (RDF) graphs. It serializes your triples using popular formats such as RDF/XML or Turtle. It also helps to persist your data using TDB, a native high performance triple store.

Jollyday - A holiday API


This API calculates the holidays for a given year, country and region or lets you provide your own holiday rules. Uses XML files for storing the holiday data. Uses JODA date/time API. Supports Europe, North/South America, Australia, Russia, India ...




Featured Post

Caching using Ehcache Java Library


Ehcache from Terracotta is one of Java's most widely used Cache. It is concurrent and highly scalable. It has small footprint with SL4J as the only dependencies. It supports multiple strategies like Expiration policies, Eviction policies. It supports three storage tiers, heap, off-heap, disk storage. There are very few caching products supports multiple tier storage. If you want to scale, you cannot store all items in heap there should be support for off-heap and disk storage. Ehcache is licensed under Apache 2.0. In this article, we can see about basic usage of Ehcache.

Getting Started on Undertow Server


Undertow is a high performing web server which can be used for both blocking and non-blocking tasks. It is extermely flexible as application can assemble the parts in whatever way it would make sense. It also supports Servlet 4.0, JSR-356 compliant web socket implementation. Undertow is licensed under Apache License, Version 2.0.

Thymeleaf - Text display, Iteration and Conditionals


Thymeleaf is a server-side Java template engine for both web and standalone environments. It is a better alternative to JavaServer Pages (JSP). Spring MVC and Thymeleaf compliment each other if chosen for web application development. In this article, we will discuss how to use Thymeleaf.

How to install and setup Redis


Redis is an open source (BSD licensed), in-memory data structure store, used also as a database cache and message broker. It is written in ANSI C and works in all the operating systems. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams. This article explains about how to install Redis.

Introduction to Light 4J Microservices Framework


Light 4j is fast, lightweight, secure and cloud native microservices platform written in Java 8. It is based on pure HTTP server without Java EE platform. It is hosted by server UnderTow. Light-4j and related frameworks are released under the Apache 2.0 license.


Tech Stack

Uber's open source technology stack


Uber, a taxi aggregation platform operates around the globe. It was started as monolith application and later re-architected as bunch of microservices, which gives them scalability. Uber uses lot of open source tools and they have contributed quite a lot projects back to the community. This article is about analyzing Uber's open source technology stack.

Stackoverflow Open Source Technology Stack


Stackoverflow is one of most widely used Q&A platform. It is the default choice of developers. It has over 100 million page views in a month and its Google page rank is 60. Check out its open source technology stack, the tools used to build such a popular website. Stackoverflow uses open source projects and also contributes to it.

Open Source Technology Stack used in WhatsApp


WhatsApp is a most widely used cross-platform mobile messaging app for iPhone, BlackBerry, Android, Windows Phone and Nokia. Users can send text, images videos, audio for free. It almost replaced SMS. It changed the way people interact with each other. Lets check out the technology behind WhatsApp

Free and Open source tools to build OpenJDK in Windows


OpenJDK is the open source implementation of Java Standard Edition. Oracle (Sun) JDK implementation is going to be based on OpenJDK. OpenJDK and Oracle JDK are almost similar. There are ready made binaries available for Linux distribution but you may need to build OpenJDK on windows.

Zimbra - Enterprise Email Server Stack


Zimbra is a Enterprise messaging and collaboration software. It is a good alternative to Microsoft Exchange server. Zimbra is a Email Server but they have not written anything related to SMTP server, rather they have integrated well know open source email server in to its package. Zimbra is a system of well connected / integrated multiple open source software which delivers enterprise quality to it. This article explains most important components which helps to build the enterprise product.