The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
Repository Index
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Apache StreamPipes - A self-service (Industrial) IoT toolbox to enable non-technical users to connect, analyze and explore IoT data streams.
binary serialization format
- serialization
- serializable-objects
- cross-platform
- high-performance
Java fake data generator
- test-data-generator
- java
- groovy
- android
Mirror of Apache Pig
- pig
- java
- database
Shell for issuing SQL to relational databases via JDBC
A scientific charting library focused on performance optimised real-time data visualisation at 25 Hz update rates for data sets with a few 10 thousand up to 5 million data points.
- chart-fx
- java
- charting-libraries
- javafx
A distributed system designed to ingest and process time series data
Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, folds, optics and typeclasses.
- algebraic-data-types
- optics
- functional-programming
- algebra
Distributed database specialized in exporting key/value data from Hadoop
Reference implementation of a Chinese social-insurance / e-government backend: 5 Spring MVC + MyBatis modules, 358 HTTP endpoints, Oracle multi-schema, Axis SOAP.
- axis
- e-government
- govtech
- java
Dicoogle - Open Source PACS
- dicoogle
- dicom
- pacs
- medical-imaging
DAO oriented database mapping framework for Java
- java
- annotation-processor
- jdbc
- dao
CogComp's Natural Language Processing Libraries and Demos: Modules include lemmatizer, ner, pos, prep-srl, quantifier, question type, relation-extraction, similarity, temporal normalizer, tokenizer, transliteration, verb-sense, and more.
- natural-language-processing
- nlp
- big-data
- data-mining
Advanced date, time and interval library for Java with sun/moon-astronomy and calendars like Chinese, Coptic, Ethiopian, French Republican, Hebrew, Hijri, Historic Christian, Indian National, Japanese, Julian, Korean, Minguo, Persian, Thai, Vietnamese
- java
- time4j
- calendar
- interval
eXist Native XML Database and Application Platform
- xquery
- xml
- java
- xslt
Data Structures and Algorithms in Java (useful in interview process)
- sorting-algorithms
- insertion-sort
- selection-sort
- sorted-arrays
Fast and Easy mapping from database and csv to POJO. A java micro ORM, lightweight alternative to iBatis and Hibernate. Fast Csv Parser and Csv Mapper
Unleash public transport data in your Java project.
- java
- library
- public-transportation
- navitia
An open-source columnar data format designed for fast & realtime analytic with big data.
- indexr
- columnar-storage
- olap
- datawarehouse
Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.
- pbkdf2
- bcrypt
- scrypt
- argon2
The Mapbox Java SDK – Java wrappers around Mapbox APIs and other location data
Canonical GTFS Validator project for schedule (static) files.
- gtfs-dataset
- gtfs-validator
- gtfs-zip
- gtfs-feed
Set of support modules for Java 8 datatypes (Optionals, date/time) and features (parameter names)
- jackson
- hacktoberfest
- java-date