Module: Ratonvirus::Scanner::Support::Callbacks

Included in:

Base

Defined in:

lib/ratonvirus/scanner/support/callbacks.rb

Overview

Provides a simple callbacks implementation to be used with the scanners.

We cannot use the ActiveSupport::Callbacks because that applies the callbacks to the whole class. We only want to define callbacks on the single instance of a class.

Defining new callbacks hooks to the instance:

class Cls
  include Ratonvirus::Support::Callbacks

  def initialize
    define_callbacks :hook
  end
end

Triggering the callback hooks:

class Cls
  # ...
  def some_method
    run_callbacks :hook, resource do
      puts "... do something ..."
    end
  end
  # ...
end

Applying functionality to the hooks:

class Cls
  def attach_callbacks
    before_hook :run_before
    after_hook :run_after
  end

  def run_before
    puts "This is run before the hook"
  end

  def run_after
    puts "This is run after the hook"
  end
end