Find Class not found When I call it from Controller

Following generic method just tries to read some files that match a
pattern . It uses the Find class which is throwing an error[1]

def loadFiles(dir)
    logger.debug ">> dir : #{dir}"
    messages = []

    Find.find(dir) do |f|
      next unless File.file?(f)
      name = File.basename(p)
      messages << f if File.fnmatch('*.FileStreamStore', name)
      logger.debug ">> messages : #{messages.inspect}"

You need to require 'find'