lib/ably/realtime/channel.rb in ably-0.8.3 vs lib/ably/realtime/channel.rb in ably-0.8.4

@@ -44,10 +44,11 @@
         :detached,
         :failed
       )
       include Ably::Modules::StateEmitter
       include Ably::Modules::UsesStateMachine
+      ensure_state_machine_emits 'Ably::Models::ChannelStateChange'
 
       # Max number of messages to bundle in a single ProtocolMessage
       MAX_PROTOCOL_MESSAGE_BATCH_SIZE = 50
 
       # {Ably::Realtime::Client} associated with this channel
@@ -104,10 +105,11 @@
       #
       # When publishing a message, if the channel is not attached, the channel is implicitly attached
       #
       # @param name [String, Array<Ably::Models::Message|Hash>, nil]   The event name of the message to publish, or an Array of [Ably::Model::Message] objects or [Hash] objects with +:name+ and +:data+ pairs
       # @param data [String, ByteArray, nil]   The message payload unless an Array of [Ably::Model::Message] objects passed in the first argument
+      # @param attributes [Hash, nil]   Optional additional message attributes such as :client_id or :connection_id, applied when name attribute is nil or a string
       #
       # @yield [Ably::Models::Message,Array<Ably::Models::Message>] On success, will call the block with the {Ably::Models::Message} if a single message is publishde, or an Array of {Ably::Models::Message} when multiple messages are published
       # @return [Ably::Util::SafeDeferrable] Deferrable that supports both success (callback) and failure (errback) callbacks
       #
       # @example
@@ -134,11 +136,11 @@
       #
       #   channel.publish('click', 'body').errback do |message, error|
       #     puts "#{message.name} was not received, error #{error.message}"
       #   end
       #
-      def publish(name, data = nil, &success_block)
+      def publish(name, data = nil, attributes = {}, &success_block)
         raise Ably::Exceptions::ChannelInactive.new('Cannot publish messages on a detached channel') if detached? || detaching?
         raise Ably::Exceptions::ChannelInactive.new('Cannot publish messages on a failed channel') if failed?
 
         if !connection.can_publish_messages?
           raise Ably::Exceptions::MessageQueueingDisabled.new("Message cannot be published. Client is configured to disallow queueing of messages and connection is currently #{connection.state}")
@@ -147,11 +149,11 @@
         messages = if name.kind_of?(Enumerable)
           name
         else
           ensure_utf_8 :name, name, allow_nil: true
           ensure_supported_payload data
-          [{ name: name, data: data }]
+          [{ name: name, data: data }.merge(attributes)]
         end
 
         queue_messages(messages).tap do |deferrable|
           deferrable.callback &success_block if block_given?
         end
@@ -188,11 +190,13 @@
       #
       # @yield [Ably::Realtime::Channel] Block is called as soon as this channel is in the Attached state
       # @return [Ably::Util::SafeDeferrable] Deferrable that supports both success (callback) and failure (errback) callback
       #
       def attach(&success_block)
-        raise Ably::Exceptions::InvalidStateChange.new("Cannot ATTACH channel when the connection is in a closed, suspended or failed state. Connection state: #{connection.state}") if connection.closing? || connection.closed? || connection.suspended? || connection.failed?
+        if connection.closing? || connection.closed? || connection.suspended? || connection.failed?
+          raise Ably::Exceptions::InvalidStateChange.new("Cannot ATTACH channel when the connection is in a closed, suspended or failed state. Connection state: #{connection.state}")
+        end
 
         transition_state_machine :attaching if can_transition_to?(:attaching)
         deferrable_for_state_change_to(STATE.Attached, &success_block)
       end
 
@@ -282,9 +286,13 @@
       # Used by {Ably::Modules::StateEmitter} to debug state changes
       # @api private
       def logger
         client.logger
       end
+
+      # As we are using a state machine, do not allow change_state to be used
+      # #transition_state_machine must be used instead
+      private :change_state
 
       private
       attr_reader :queue
 
       def setup_event_handlers