Class: Judges::Impex

Inherits:
Object show all
Defined in:
lib/judges/impex.rb

Overview

Import/Export of factbases.

Author

Yegor Bugayenko (yegor256@gmail.com)

Copyright

Copyright © 2024 Yegor Bugayenko

License

MIT

Instance Method Summary collapse

Constructor Details

#initialize(loog, file) ⇒ Impex

Returns a new instance of Impex.



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# File 'lib/judges/impex.rb', line 33

def initialize(loog, file)
  @loog = loog
  @file = file
end

Instance Method Details

#export(fb) ⇒ Object 



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# File 'lib/judges/impex.rb', line 56

def export(fb)
  FileUtils.mkdir_p(File.dirname(@file))
  File.binwrite(@file, fb.export)
  @loog.info("Factbase exported to #{@file.to_rel} (#{File.size(@file)} bytes, #{fb.size} facts)")
end

#import(strict: true) ⇒ Object 



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# File 'lib/judges/impex.rb', line 38

def import(strict: true)
  fb = Factbase.new
  if File.exist?(@file)
    fb.import(File.binread(@file))
    @loog.info("The factbase imported from #{@file.to_rel} (#{File.size(@file)} bytes, #{fb.size} facts)")
  else
    raise "The factbase is absent at #{@file.to_rel}" if strict
    @loog.info("Nothing to import from #{@file.to_rel} (file not found)")
  end
  fb
end

#import_to(fb) ⇒ Object 



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# File 'lib/judges/impex.rb', line 50

def import_to(fb)
  raise "The factbase is absent at #{@file.to_rel}" unless File.exist?(@file)
  fb.import(File.binread(@file))
  @loog.info("The factbase loaded from #{@file.to_rel} (#{File.size(@file)} bytes, #{fb.size} facts)")
end