branch-1.2/ambari-agent/src/main/puppet/modules/stdlib/lib/puppet/parser/functions/getvar.rb

module Puppet::Parser::Functions

  newfunction(:getvar, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args|
    Lookup a variable in a remote namespace.

    For example:

      $foo = getvar('site::data::foo')

    This is useful if the namespace itself is stored in a string:

      $bar = getvar("${datalocation}::bar")
    ENDHEREDOC

    unless args.length == 1
      raise Puppet::ParseError, ("getvar(): wrong number of arguments (#{args.length}; must be 1)")
    end

    self.lookupvar("#{args[0]}")

  end

end