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path_resolver.rb
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path_resolver.rb
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module Controll
module Enabler
class PathResolver
class PathResolverError < StandardError; end
attr_reader :caller
def initialize caller
@caller = caller
end
def extract_path map_type, path = nil
return resolve_path(map_type) if path.nil?
case path
when Symbol
raise "Caller must have a notice method" unless caller.respond_to? :notice
caller.notice path
end
resolve_path map_type
end
def resolve_path map_type
raise "Caller must have a #main_event method" unless caller.respond_to? :main_event
caller.send(map_type).each do |path, events|
return path.to_s if matches? events
end
raise PathResolverError, "Path could not be resolved for: #{event.name}"
end
protected
def matches? events
event_matcher.match?(events)
end
def event_matcher
@event_matcher ||= Controll::Event::Matcher.new event
end
def event
@event ||= caller.main_event
end
end
end
end