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Contents
# frozen_string_literal: true
module Karafka
# Responders namespace encapsulates all the internal responder implementation parts
module Responders
# Responders builder is used to find (based on the controller class name) a responder that
# match the controller. This is used when user does not provide a responder inside routing
# but he still names responder with the same convention (and namespaces) as controller
# @example Matching responder exists
# Karafka::Responder::Builder(NewEventsController).build #=> NewEventsResponder
# @example Matching responder does not exist
# Karafka::Responder::Builder(NewBuildsController).build #=> nil
class Builder
# @param controller_class [Karafka::BaseController, nil] descendant of
# Karafka::BaseController
# @example Tries to find a responder that matches a given controller. If nothing found,
# will return nil (nil is accepted, because it means that a given controller don't
# pipe stuff further on)
def initialize(controller_class)
@controller_class = controller_class
end
# Tries to figure out a responder based on a controller class name
# @return [Class] Responder class (not an instance)
# @return [nil] or nil if there's no matching responding class
def build
Helpers::ClassMatcher.new(
@controller_class,
from: 'Controller',
to: 'Responder'
).match
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems