Used techologies

• Java 11
• Lombok
• MapStruct
• JUnit 5
• AssertJ
  • AssertJ Assertions Generator
• MySQL
• Spring Boot — for JPA
• FreeMarker
• Maven
• Jackson — java objects from/to JSON conversion.
• Apache POI — export from Java to Excel. Very low-level (we have to export all cells)
• Zip4j — useful Java library for simply zipping/unzipping files. Used to zip Excel (XLSX) files.
• AWS EC2 instance — to execute the data downloading requests
• AWS S3 — to host the static web pages of the statistics.
• Chart.js — JS diagrams on the front-end.

❗ Technologies of old legacy KgParser:

• Kefir — we need to get rid of this and replace it with standard libraries. This will also simplify the CI cycle (no need to clone kefir from other GitHub repo).
• Firebird — should be replaced with MySQL.