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Rule Evaluator

Rule Evaluator is a command-line application written in Scala 3 that allows you to evaluate a set of conditions on a CSV file. This application is currently a work in progress. This project was developed with the assistance of the GPT-3.5-based language model called ChatGPT, which was used to generate tests, documentation, and some parts of the code.

Usage

To use Rule Evaluator, you must have a CSV file with your data and a set of conditions that you want to evaluate for each row of data.

Example Run Command

sbt "run --rule rules.txt --csv example.csv"

Example Rule File

[Column1] = 1 AND [Column2] = "abc"

Example CSV File

Column1,Column2,Column3
1,abc,2
2,cbe,3

Example Output

For the above example rule and CSV files, the output would be:

row: 1 status: Pass
row: 2 status: Fail: Column1 | Column2

The application will evaluate each row in the CSV file against the specified conditions and output the result for each row. If a row fails the conditions, the application will also output a list of reasons why the conditions failed.

Technologies Used

This project uses the following technologies:

  • Scala 3 - The programming language used to write the application.
  • sbt - The build tool used to manage dependencies and build the project.
  • ScalaTest - The testing framework used to write and run tests.
  • Cats - The library used to provide type classes such as Monoid for functional programming in Scala.
  • ZIO - The library used for managing side effects and concurrency.

Development

To build and test the application, you can use the following commands:

$ sbt compile     # compile the application
$ sbt test        # run tests