Module: ObjectTraverser

Included in:
Inspec::Resources::JsonConfig, Inspec::Resources::WMI
Defined in:
lib/utils/object_traversal.rb

Overview

author: Dominik Richter author: Christoph Hartmann

Instance Method Summary collapse

Instance Method Details

#extract_value(keys, value) ⇒ Object 



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# File 'lib/utils/object_traversal.rb', line 5

def extract_value(keys, value)
  key = keys.shift
  return nil if key.nil? || value.nil?

  if value.is_a?(Array)
    value = if key.is_a?(Fixnum)
              value[key]
            elsif value.respond_to?(key.to_sym)
              value.send(key.to_sym)
            end
  else
    value = value[key.to_s].nil? ? nil : value[key.to_s]
  end

  # if there are no more keys, just return the value
  return value if keys.first.nil?
  # if there are more keys, extract more
  extract_value(keys.clone, value)
end