Class: Factbase::Fact

Inherits:
Object
  • Object
show all
Defined in:
lib/factbase/fact.rb

Overview

Fact.

Author

Yegor Bugayenko ([email protected])

Copyright

Copyright © 2024 Yegor Bugayenko

License

MIT

Instance Method Summary collapse

Constructor Details

#initialize(mutex, map) ⇒ Fact

Returns a new instance of Fact.



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# File 'lib/factbase/fact.rb', line 32

def initialize(mutex, map)
  @mutex = mutex
  @map = map
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(*args) ⇒ Object

When a method is missing, this method is called.



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# File 'lib/factbase/fact.rb', line 44

def method_missing(*args)
  k = args[0].to_s
  if k.end_with?('=')
    kk = k[0..-2]
    raise "Invalid prop name '#{kk}'" unless kk.match?(/^[a-z][_a-zA-Z0-9]*$/)
    v = args[1]
    raise "Prop value can't be nil" if v.nil?
    raise "Prop value can't be empty" if v == ''
    raise "Prop type '#{v.class}' is not allowed" unless [String, Integer, Float, Time].include?(v.class)
    v = v.utc if v.is_a?(Time)
    @mutex.synchronize do
      before = @map[kk]
      return if before == v
      if before.nil?
        @map[kk] = v
        return
      end
      @map[kk] = [@map[kk]] unless @map[kk].is_a?(Array)
      @map[kk] << v
    end
    nil
  elsif k == '[]'
    @map[args[1].to_s]
  else
    v = @map[k]
    if v.nil?
      raise "Can't get '#{k}', the fact is empty" if @map.empty?
      raise "Can't find '#{k}' attribute in [#{@map.keys.join(', ')}]"
    end
    v.is_a?(Array) ? v[0] : v
  end
end

Instance Method Details

#respond_to?(_method, _include_private = false) ⇒ Boolean

rubocop:disable Style/OptionalBooleanParameter

Returns:

  • (Boolean) 


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# File 'lib/factbase/fact.rb', line 78

def respond_to?(_method, _include_private = false)
  # rubocop:enable Style/OptionalBooleanParameter
  true
end

#respond_to_missing?(_method, _include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/factbase/fact.rb', line 83

def respond_to_missing?(_method, _include_private = false)
  true
end

#to_s ⇒ String

Convert it to a string.

Returns:

  • (String) —

    String representation of it (in JSON)



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# File 'lib/factbase/fact.rb', line 39

def to_s
  @map.to_json
end