Class: Ruleby::Ferrari::RulesContainer

Inherits:
Array
  • Object
show all
Defined in:
lib/dsl/ferrari.rb

Instance Method Summary collapse

Instance Method Details

#build(name, options, engine, &block) ⇒ Object 



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# File 'lib/dsl/ferrari.rb', line 120

def build(name,options,engine,&block)
  rules = []        
  self.each do |x|          
    x.process_tree do |c|
      transform_or(c)     
    end
  end
  handle_branching(self).each do |a|
    rules << build_rule(name, a, options, &block)
  end
  return rules
end

#build_rule(name, container, options, &block) ⇒ Object 



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# File 'lib/dsl/ferrari.rb', line 133

def build_rule(name, container, options, &block)
  r = RuleBuilder.new name
  container.build r
  r.then(&block)
  r.priority = options[:priority] if options[:priority]
  r.build_rule
end

#handle_branching(container) ⇒ Object 



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# File 'lib/dsl/ferrari.rb', line 102

def handle_branching(container)
  ands = []
  container.each do |x|
    if x.or?
      x.each do |branch|
        ands << branch
      end
    elsif x.and?
      ands << x
    else
      new_and = Container.new(:and)
      new_and << x
      ands << new_and
    end   
  end
  return ands
end

#transform_or(parent) ⇒ Object 



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# File 'lib/dsl/ferrari.rb', line 56

def transform_or(parent)
  ors = []
  others = []
  permutations = 1
  index = 0
  parent.each do |child|
    if(child.or?)
      permutations *= child.size
      ors << child
    else
      others[index] = child
    end
    index = index + 1
  end
  # set parent type to or and clear
  parent.kind = :or
  parent.clear
  indexes = []
  # initialize indexes
  ors.each do |o|
    indexes << 0
  end
  # create children
  (1.upto(permutations)).each do |i|
    and_container = Container.new(:and)
    
    mod = 1
    (ors.size - 1).downto(0) do |j|
      and_container.insert(0,ors[j][indexes[j]])
      if((i % mod) == 0)
        indexes[j] = (indexes[j] + 1) % ors[j].size
      end
      mod *= ors[j].size
    end
    
    others.each_with_index do |other, k|
      if others[k] != nil
        and_container.insert(k, others[k])
      end
    end  
    # add child to parent        
    parent.push(and_container)         
  end
  parent.uniq!
end