gsthamu / unicenta-pos

UnicentaPOS source code

krPOS - Kriol Point Of Sales

1. About

krPOS is Point Of Sales for "Kriol" Markert

ℹ️	WILL NOT follow future version of Unicenta oPOS

1.1. History of krPOS

• krPOS is a fork of UnicentaOPOS 4.5 (2019-06-30)

• UnicentaOPOS is a fork of OpenBravo POS

• Openbravo has acquired Librepos (previously named Tina POS)

  • Adrian Romero was founder and main developer for Tina POS

• License: GPL version 3

2. Screenshots

3. Service Provider Iinterface (SPI)

About Java SPI available since Java 1.5 (eg: Used in JDBC driver loading)

• META-INF/services

• https://docs.oracle.com/javase/tutorial/sound/SPI-intro.html

• https://en.wikipedia.org/wiki/Service_provider_interface

Table 1. Example of possible SPI

ResourceLoader, ResourceProvider resource:file:// resource:db:// resource:classpath://

PaymentGatewayProvider

4. Modularity

• Modularity based on OSGI 7

• ScriptEngine:

  • Kotlin(kts)

  • groovy (but may not included, just for testing/evaluation)

Modularity of code base (impl should provide default implementation)

• krospos-core-api

• krospos-core-impl

• krospos-gui-api

• krospos-gui-core

• krospos-data-api

• krospos-data-impl

4.1. OSGI

• Fragment for static resource customization

• capabilities and requirement

• Declarative Service (Dependency Injection)

• ConfigAdmin

• Custom Annotation

• Apache Karaf (Apache Felix)

• TornadoFX (OSGI and JavaFX)

• …​

5. Docker

Run MySQL database for Developer Env

 docker run --name unicenta -p 3306:3306 -d -e MYSQL_ROOT_PASSWORD=root -e MYSQL_DATABASE=unicenta -e MYSQL_USER=unicenta -e MYSQL_PASSWORD=unicenta mysql:5.6