/cron-parser

Primary LanguageJava

Cron Parser

This application implements a simple command line application for parsing a cron expression.

Given a cron expression in commandline arguments and/or from the main app it should process then print the cron expression.

Dependencies

  • JDK 11
  • Gradle 6

Running the application

./gradlew run

Running the test

./gradlew clean test

TODOs

  • Better error handling and input validation
  • Not implemented L W
  • Update test coverage so all methods are covered for all fields.

#References The reference documentation for this implementation is found at https://en.wikipedia.org/wiki/Cron#CRON_expression and pasted below:

Field name Mandatory? Allowed values Allowed special characters

Seconds No 0-59 * / , - Minutes Yes 0-59 * / , - Hours Yes 0-23 * / , - Day of month Yes 1-31 * / , - L W Month Yes 1-12 or JAN-DEC * / , - Day of week Yes 0-6 or SUN-SAT * / , - L # Year No 1970–2099 * / , -