• Ruby >= 3.1.x

$ bundle install

$ ./parser.rb spec/fixtures/files/webserver.log

$ bundle exec rspec

Evaluator converts the input file into the format desired by Analyzer.

Analyzer talks to Evaluator and counts page views.

Reporter displays the data processed by Analyzer.

Each class performs only one action, so they have only one method in their public interfaces. On the other hand, none of the objects are instantiated inside call methods. Dependencies are either injected into the other class or instantiated in initializer. This helps to reduce the coupling between classes.