PlanetBrain Temperature Analyzer

This project presents an example from the OpenClassrooms Java Concurrency course, demonstrating multi-process solutions.

This project analyses open data from Nasa's Kepler project to present mean temperatures warmer and cooler than Earth's.

Note to students on the JDK

This project will require you to install JDK 11. The distribution provided by Oracle or the OpenJDK project will suffice.

Running with gradle

To run the single process program with gradle: *This uses the PlanetTemperatureAnalyzer main class, which may also be run explicitly.)

./gradlew runSingleProcess

To run the multi process program with gradle: (This uses the PlanetTemperatureAnalyzerParallel main class, which may also be run explicitly.)

./gradlew runMultiProcess

NOTE: On windows you should use gradlew.bat

Data Files

The following files are used:

• src/main/resources/all-planets.csv

  This is based on an extract from the Kepler mission (but with intentional duplicates to increase processing times). Used by the runSingleProcess command.

• src/main/resources/first-55820.csv and last-55820.csv

  These two files each contain half of the previous file.

These are both based on open data exports, but have been augmented for this exercise.

You'll also find the following files which you can use to slice into your data:

• cool-planets.csv - just those planets below 288 Kelvins.
• hot-planets.csv - just those planets above 288 Kelvins.