wavesoftware/puppet-xtreemfs

# A puppet x module
module Puppet_X
# A Wavesoftware puppet_x module
module Wavesoftware
# XtreemFS module
module Xtreemfs
# A custom class that holds custom functions
class Functions

  # PRIVATE INTERNAL FUNCTION. Merges a given properties hash, with augeas 
  # changes that must be applied in given configuration processor. 
  # Returns in form aplicable by augeas.
  #
  # @param args [Array] one or two elements array. First element holds a +Hash+ 
  #     with properties, and second holds an +Array+ with augeas commands.
  # @return [Array] an compiled +Array+ of augeas commands
  def self.properties_to_augeas args
    raise(Puppet::ParseError, "properies_to_augeas(): Wrong number of arguments " +
      "given (#{args.size} for 1..2)") if args.size != 1 and args.size != 2

    extra_hash = args[0]
    augeas_changes = if args.size == 2 then args[1] else [] end

    unless extra_hash.respond_to?(:map) and augeas_changes.is_a?(Array) then
      message = "properies_to_augeas(): Wrong type of arguments given (#{extra_hash.class} for Hash, #{augeas_changes.class} for Array)"
      raise Puppet::ParseError, message
    end

    extra_list = extra_hash.map { |k, v| "set #{k} #{v}" }
    retval = extra_list.concat augeas_changes
    return retval.sort
  end

end
end
end
end