Overview

A small set of Java utility modules for some general / specific tasks:

io-util - I/O, buffer, and some common utilities. The Lists utility methods find a lot of use in other crums.io projects. (No external dependencies.)
jsonimple - json-simple knock off with some bug fixes, and a few added features. (No external dependencies.)
io-xp - Less used stuff. Includes a fuzzy controller.
table-io - Simple, fast, fail-safe, fixed-width, external tables (on disk). Multi-way external merge sort.

(To use these as a maven dependency, use the artifact coordinates listed in the links above.)

Build (install)

This is a standard maven build.

Prerequisites

JDK 16+
Maven 3.x
Internet connection (possible dependency downloads by maven)

Building

Clone this repo and then invoke

$ mvn clean install

Note after running the tests you'll find a target/test-outputs directory containing the side effects of the tests.

You'll want to profile performance. To get a rudimentary idea for stuff like external merges, include the perf_test switch (takes about 2 minutes):

$ mvn clean install -Dperf_test=true`

JPMS Ready

Module information is included in the build so that projects can load the library under the module system. Its only dependency is the default module java.base.

Milestones

Sept. 6, 2022: First version pushed to Maven Central

Feb. 11, 2021: Released under LGPL.