class Intercept::Worker
Base class of the intercept module. A worker object is responsible to intercept and modify state of registering class's objects
Attributes
decorator_map[R]
interceptor_map[R]
Public Class Methods
new(registration_method, interceptor_map = {}, decorator_map = {})
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@param registration_method [String, Symbol] method_name which is called by the registering class. @param interceptor_map
[Hash] Keys represent fields to be modified. Values are Strategy
class object @param decorator_map
[Hash] Keys represent fields to be modified. Values are Decorator
class object
# File lib/intercept/worker.rb, line 20 def initialize(registration_method, interceptor_map = {}, decorator_map = {}) @interceptor_map = interceptor_map @decorator_map = decorator_map if registration_method != 'intercept' && registration_method != :intercept define_singleton_method(registration_method) { |message| intercept(message) } end end
Public Instance Methods
intercept(message)
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This method is called when we want to intercept and modify an object. 'registration_method' parameter of initialize is an alias to this method. @param message is an object of any registering class
# File lib/intercept/worker.rb, line 32 def intercept(message) interceptor_map.each do |field, strategy| if message.respond_to?(field) && message.respond_to?("#{field}=") message.public_send("#{field}=", strategy.process(message.public_send field)) end end decorator_map.each do |field, strategy| if message.respond_to?(field) && message.respond_to?("#{field}=") message.public_send("#{field}=", strategy.decorate(message.public_send field)) end end end