class Tango::ETL::Dispatcher

Dispatcher of handlers

@author Mckomo

Public Class Methods

new() click to toggle source
# File lib/tango/etl/dispatcher.rb, line 9
def initialize
  @handlers = []
end

Public Instance Methods

find_handler( url ) click to toggle source

Find first applicable handler

@param url [String] URL of the page to be handled @return [HandlerInterface]

# File lib/tango/etl/dispatcher.rb, line 35
def find_handler( url )
  
  # Iterate handlers to find first matching handler
  @handlers.each do |h|
    return h if h.applicable?( url )
  end
  
  nil
  
end
register( handler_class ) click to toggle source

Register new handler

@param handler_class [HandlerInterface] Class that implements HandlerInterface @return [Dispatcher]

# File lib/tango/etl/dispatcher.rb, line 17
def register( handler_class )
  
  # handler must implement HandlerInterface
  unless handler_class.ancestors.include? Tango::ETL::HandlerInterface
    raise "Handler must implement HandlerInterface"
  end
  
  # Append handler to container
  @handlers << handler_class 
  
  self # Chainabilty!
  
end