Open Source Java Data Management Systems

Bootchart is a tool for performance analysis and visualization of the GNU/Linux boot process. Resource utilization data and process information are collected during the boot process and can later be displayed in a PNG, SVG or EPS chart.

Vitamin is a software for visualizing network traffic in IP based networks. It works as a distributed system. Several slaves capture the network traffic on several computers in a network. The master visualizes the information he receives from the slaves.

A framework for building, deploying and managing well-described REST-ful Web services, including REST-ful Web Services realizations for RSS, XML Topic Maps, Structured Arguments, and Workflow.

Cube Platform is a decentralized grid computing system that uses P2P Pastry protocol for communication between nodes. It's a big data storage written in Java.

The goal of DynaQ is to develop an inquiry system to explore the personal information space, supporting you with the searching paradigm 'orienteering'. DynaQ is a (desktop)search engine with enhanced functionality for file, email and blog search. Look at our GitLab homepage for sourcecode and documentation: http://dynaq.opendfki.de

Get an up-to-date view of what's happening in your social network. You can browse based on specific keywords (tags) and see who's talking about what in your proximity.

GRAIL Real Time Location Service (RTLS)

Gavrog stands for "Generation, Analysis and Visualization of Reticular Ornaments using Gavrog". It is a Java library together with a suite of interactive applications for the study of periodic net-like structures in space and their applications.

JBotSim is a multipurpose dynamic network simulator that allows to quickly prototype a distributed algorithm and test its behavior on a set of static or mobile nodes. If mobile, the nodes can be controlled by the mouse or by program.

A simple little engine to do fuzzy name & address searching. Helps improve data quality and avoids duplicate data entry.

LogsGrep is a unique, grep-like utility designed specifically to target log files containing multi-line entries. The primary target is Java log files (Log4J, common, ...), where it is very common to have multiline log entries (for example log entries with a stacktrace). It follows Unix philosophy, does only its primary job and expects its input to be generated by other more advanced tools (tail, cat, type, find...); There is no goal to be compatible with Unix grep. LogsGrep is written in the Java programming langue having performance and low resource usage in mind (no strings, no object creation, stream-processing).

The MathForge Application Environment provides users a broad range of Java-based math tools (calculation, visualization, presentation and communication via MathML) and allows developers to leverage existing code while extending MathForge.

MetadataPortal Metadata Management software is a web based Opensource Metadata Management Solution for Enterprise Integration. For more details please have a look at the blog entry at http://www.metadataportal.com/blog/

The NEtwork Visualisation Environment is a framework for 3D-visualisation of and interaction with networks, especially communication networks as the internet in both real time and as a simulation tool. Based on JMX/Java3D.

OO-Widgets is a Java Swing project that makes the JTable and other components much easier to use. This library differs from other Swing libraries in that it displays any set of pre-existing objects or JavaBeans.

Generic packet visualization tool for generating flow diagrams from formatted logs. Can be used for cache coherency diagrams, software interaction diagrams or to plot network communications.

Job implementation and wrapper to easily execute a talend job with the Job Scheduler. Both tools (Talend Open Studio and Job Scheduler) are open source anc can be found on SourceForge.

An open source data version repository model based on true INSERT only logic. Contains high performance support for data versioning and history. Enables point-in-time query and CDC sourcing including mapping each change to a transaction.

Netsim is a mobile ad hoc network simulator targeted at large heterogeneous node configurations. It is written in Java and is easily extensible through its modular concept.

TNV visualizes pcap data to graphically depict network packets, links, and ports for network traffic analysis to facilitate learning what constitutes 'normal' behavior, investigating security events, or network troubleshooting.

wlandscape is a tool for collecting access point data of public wireless networks ( wlan ) in order to share it with anyone. It also supports gps and visualisation with the help of topographical maps. Visit our homepage for further informations.