From 8115d25033a0af2d29b57e1e5a6afaa70038a3d4 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Mon, 22 Jun 2015 14:15:28 +0200
Subject: WIP: Extract processor

---
 lib/action_cable/connection/base.rb      | 13 ++------
 lib/action_cable/connection/processor.rb | 54 ++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+), 11 deletions(-)
 create mode 100644 lib/action_cable/connection/processor.rb

diff --git a/lib/action_cable/connection/base.rb b/lib/action_cable/connection/base.rb
index 71e84aed99..1fdc6f0fe8 100644
--- a/lib/action_cable/connection/base.rb
+++ b/lib/action_cable/connection/base.rb
@@ -18,6 +18,7 @@ module ActionCable
 
         @heartbeat     = ActionCable::Connection::Heartbeat.new(self)
         @subscriptions = ActionCable::Connection::Subscriptions.new(self)
+        @processor     = ActionCable::Connection::Processor.new(self)
       end
 
       def process
@@ -32,17 +33,7 @@ module ActionCable
           end
 
           @websocket.on(:message) do |event|
-            message = event.data
-
-            if message.is_a?(String)
-              if accepting_messages?
-                worker_pool.async.invoke(self, :receive, message)
-              else
-                queue_message message
-              end
-            else
-              logger.error "Couldn't handle non-string message: #{message.class}"
-            end
+            processor.handle event.data
           end
 
           @websocket.on(:close) do |event|
diff --git a/lib/action_cable/connection/processor.rb b/lib/action_cable/connection/processor.rb
new file mode 100644
index 0000000000..2060392478
--- /dev/null
+++ b/lib/action_cable/connection/processor.rb
@@ -0,0 +1,54 @@
+module ActionCable
+  module Connection
+    class Processor
+      def initialize(connection)
+        @connection = connection
+        @pending_messages = []
+      end
+
+      def handle(message)
+        if valid? message
+          if ready?
+            process message
+          else
+            queue message
+          end
+        end
+      end
+
+      def ready?
+        @ready
+      end
+
+      def ready!
+        @ready = true
+        handle_pending_messages
+      end
+
+      private
+        attr_reader :connection
+        attr_accessor :pending_messages
+
+        def process(message)
+          connection.worker_pool.async.invoke(connection, :receive, message)
+        end
+
+        def queue(message)
+          pending_messages << message
+        end
+
+        def valid?(message)
+          if message.is_a?(String)
+            true
+          else
+            connection.logger.error "Couldn't handle non-string message: #{message.class}"
+            false
+          end
+        end
+
+        def handle_pending_messages
+          process pending_messages.shift until pending_messages.empty?
+        end
+    end
+  end
+end
\ No newline at end of file
-- 
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