Repository Index

Write parsers for arbitrary text inputs, entirely in Java, with no preprocessing phase

Read and write Excel (.xlsx, .xls), CSV, and ODS files in Java with one line of code. Annotation-based mapping, SAX streaming, built-in validation, 19 type converters, cell styling. A high-performance alternative to Apache POI.

• annotation
• apache-poi
• csv
• data-processing

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Sample code for a java application that uses Elastic Beanstalk, S3, DynamoDB, and SQS to create a meme generation website and processing pipeline. For a demonstration of the application in action, see this talk from AWS re:Invent 2012: http://www.youtube.com/watch?v=YeRNErD81VA

dregex is a Java library that implements a regular expression engine using deterministic finite automata (DFA). It supports some Perl-style features and yet retains linear matching time, and also offers set operations.

• scala
• dfa
• regular-expression
• regular-expression-engine

Machine learning and natural language processing with Apache Pig

Lightweight Java library for reading and writing fixed-width / fixed-length flat files using annotations on POJOs — for banking, payroll, EDI, mainframe, and batch integrations.

• annotations
• banking
• batch-processing
• edi

Stream Ops is a fully embeddable data streaming engine and stream processing API for Java.

PoC for using Vert.x in EC2. Using the event bus bridge to Node. Setting up clustering in EC2. Possibly more.

Window-Based Hybrid CPU/GPU Stream Processing Engine

• stream-processing
• hybrid
• multicore
• gpu

Relational database access made simpler and safer

• open-source
• accessing-databases
• java
• sql

Massively parallel RDBMS to Neo4j Importer

Simple library for processing to generate gcode for doing pen-plotting with a 3d printer.

A plugin for the Play Framework that enables easy, automatic compression of JavaScript and CSS

Microstation 2026: Professional Desktop Utility Configuration Installer

• automation
• bentley-microstation-install-setup-windows-2026
• desktop
• developer-tools

On1 Photo Raw Max 2026: Full standalone image processing setup

• automation
• desktop
• developer-tools
• on1-photo

Lightweight and lightning fast Java WebDriver client for test automation professionals

• selenium
• webdriver
• java
• client

Plugins for bone image analysis

• fiji-plugin
• image-analysis
• image-processing
• imagej-plugins

Utilities for HDR Histogram logs manipulation

Develop streaming applications for IBM Streams in Python, Java & Scala.

• ibm-streams
• java
• scala
• python

Java Scientific Computing Library - Signal Processing, FFT, Filters, PSD, DCT, SciPy-like APIs for JVM & Android used in Machine Learning and Data Science.

• android
• java
• python
• scipy

Unofficial J2ME application for the most popular Russian social site, VK.

• homebrew
• j2me
• j2me-platform
• vk

DocId set compression and set operation library

Processing Library for writing HPGL (plotter) files

• hpgl
• processing