Class: Thoreau::HashUtil

Inherits:
Object
  • Object
show all
Defined in:
lib/thoreau/service/util.rb

Class Method Summary collapse

Class Method Details

.normalize_props(hash, prop_map, include_all_normalized_props = true) ⇒ Object

prop_map is a map from canonical property name to all versions



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# File 'lib/thoreau/service/util.rb', line 18

def self.normalize_props(hash, prop_map, include_all_normalized_props = true)
  prop_map.reduce(Hash.new) do |memo, (k, v)|
    value   = one_of_these(hash, v, include_all_normalized_props ? nil : :secret_default_value)
    memo[k] = value unless value == :secret_default_value
    memo
  end
end

.one_of_these(hash, pick_one_of_these_keys, default_value = nil) ⇒ Object 



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# File 'lib/thoreau/service/util.rb', line 26

def self.one_of_these(hash, pick_one_of_these_keys, default_value = nil)
  keys_present = pick_one_of_these_keys.intersection hash.keys

  if keys_present.size > 1
    logger.error "Only of of these keys is allowed: #{keys_present.to_sentence}"
  end

  pick_one_of_these_keys.each do |k|
    return hash[k] if hash.key?(k)
  end

  default_value
end