module Extractor

# File lib/pomona/extractor.rb, line 13
def self.find_node_by_id(id, tree_array)
  #TODO: Get this working without using an instance variable for target
  tree_array.each do |tree_node|
    if tree_node.id == id
      @target = tree_node
    else
      Extractor.find_node_by_id(id, tree_node.children) if tree_node.has_children?
    end
  end

  @target.nil? ? (raise NodeNotFound) : (return @target)
end

# File lib/pomona/extractor.rb, line 4
def self.get_all_by_keys(tree_array = [], keys = [], values = [])
  tree_array.each do |tree_node|
    values << tree_node.node.values_at(*keys)
    Extractor.get_all_by_keys(tree_node.children, keys, values) if tree_node.has_children?
  end

  values
end