Since version 1.5, there is a new plugin management system for Logstash. Plugin repositories are now located at github.com/logstash-plugins. Plugins are now self-contained Ruby gem whose source code lives in its own GitHub repository. The Ruby gem is host... read more
Introduction The Knowm Development Team needs access to affordable research and development platforms for distributed computing. To address this need, we have paired Adapteva’s powerful and affordable Parallella boards with Apache Storm to create an... read more
Introduction This document will help you get up and running with your own development environment compatible with Knowm’s development stack. There’s a bit of a learning curve, but we’ve taken measures to make collaborating as easy as pos... read more
Running Apache Storm cluster on EC2 is greatly simplified with the open source project storm-deploy-alternative. With this handy project, you can define your Storm cluster in a simple configuration file and create the running instances as well as installi... read more
When creating graphical user interfaces with Java, it is often useful to add charts to your Java application for visualizing data. In this tutorial, we show how to easily add charts to a Java Swing application using our open source Java charting library X... read more
In the post titled Simulating the Knowm M-MSS Memristor Model Pulse Response with Qucs-S and Xyce, I presented the dynamic behavior of the M-MSS model’s response to a square wave pulse with various pulse configurations while introducing some more advanc... read more
In a recent post titled Simulating Knowm AHaH Memristor-Based Logic Using Qucs-S and Xyce, I presented circuit simulations that explored the dynamic behavior of the Knowm M-MSS (Mean Meta-stable Switch Memristor) model by creating basic logic circuits (i.... read more
To get a date object set to a specific date you can use the Calendar class as follows in the following example code: [crayon-673f303606c17460186956/] Here is the output of the example code: [crayon-673f303606c1c049668991/]
In this post we will show how to set up Eclipse to deploy a Java application to a Raspberry Pi located on the local network. We have adapted from this article to reflect fixes to common errors. Set up Raspberry Pi Insure that your RPi is connected to your... read more
TL;DR [crayon-673f303606625594022752/] …and dont forget to add the javafx-swing dependency to your pom.xml (Maven): [crayon-673f30360662a333853273/] XChart is Awesome Looking for a full-featured open source charting library? Knowm XChart has been ga... read more