error

/usr/lib/ruby/site_ruby/1.8/puppet/parser/functions/create_resources.rb:1: warning: multiple values for a block parameter (2 for 1)
	from /etc/puppet-modules/custom/lib/puppet/parser/functions/hiera_resources.rb:38

hiera_data

resources:
  package:
    jdk:
      ensure: absent

hiera_resources.rb

=begin

http://yo61.com/assigning-resources-to-nodes-with-hiera-in-puppet.html

define apache::website::instance(
    $ListenIP,
    $ServerAlias = [],
    $config = ''
) {
# clever code goes here to instantiate the apache vhost
}

node default {
    hiera_resources('resources')
}
Now, to create the resource as in the previous example, add this to the hiera config:

resources:
    apache::website::instance:
        'www.example.com':
            ListenIP: '1.2.3.4'
            ServerAlias:
                - 'example.com'
                - 'foo.example.com'
            config: |-
                DocumentRoot /var/www/sites/example
                <Directory /var/www/sites/example/>
                    AllowOverride None
                    Options +Indexes
                </Directory>
=end


Puppet::Parser::Functions.newfunction(:hiera_resources, :type => :statement) do |args|
  raise Puppet::Error, "hiera_resources requires 1 argument; got #{args.length}" if args.length != 1
  apps = function_hiera_hash(args[0], {})
  apps.each do |res_type, resources|
    function_create_resources(res_type, resources)
  end
end