Class: Musikov::MidiParser

Inherits:
Object
  • Object
show all
Defined in:
lib/musikov/midi_parser.rb

Overview

This class is responsible for interacting with MidiLib in order to read the input midi files.

Instance Method Summary collapse

Constructor Details

#initialize(file_or_folder_paths = []) ⇒ MidiParser

Initializes the parser using the file (or folder) path parameter

  • Parameter can be a single file path or a folder



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# File 'lib/musikov/midi_parser.rb', line 18

def initialize(file_or_folder_paths = [])
  @paths = []
  @paths += file_or_folder_paths
end

Instance Method Details

#parse ⇒ Object

Obtains the list of midi files to parse and call the Midilib parse routine



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# File 'lib/musikov/midi_parser.rb', line 24

def parse
  result = []
  files = []
  
  @paths.each { |path|
    begin
      raise FileNotFoundError unless File.exists?(path)
      
      if File.directory?(path) then
        files += Dir.glob("#{path}/**/*.mid")
      else
        files << path if File.extname(path) == ".mid"
      end
    rescue
      puts "Not a valid file path : #{path} => #{$!}"
    end
  }
  
  
  if files.empty? then
    puts "No files were added."
  else
    files.each { |file_path|
      result << read_midi(file_path)
    }
  end
  
  return result
end