refactor channel look up to use a hash instead of an array and reduce the number of calls to safe_constantize because it can be slow

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/action_cable/server/base.rb b/lib/action_cable/server/base.rb
index b09fbf6da4..43849928b9 100644
--- a/lib/action_cable/server/base.rb
+++ b/lib/action_cable/server/base.rb
@@ -36,11 +36,11 @@ module ActionCable
         @worker_pool ||= ActionCable::Server::Worker.pool(size: config.worker_pool_size)
       end
 
-      # Requires and returns an array of all the channel class constants in this application.
+      # Requires and returns an hash of all the channel class constants keyed by name.
       def channel_classes
         @channel_classes ||= begin
           config.channel_paths.each { |channel_path| require channel_path }
-          config.channel_class_names.collect { |name| name.constantize }
+          config.channel_class_names.each_with_object({}) { |name, hash| hash[name] = name.constantize }
         end
       end