Class: Flydata::Helper::ActionOwnershipChannel
- Inherits:
-
Object
- Object
- Flydata::Helper::ActionOwnershipChannel
- Includes:
- FlydataCore::Logger, MonitorMixin
- Defined in:
- lib/flydata/helper/action_ownership_channel.rb
Overview
Take care of action ownership management
-
Receive a request from both scheduler and worker.
-
Give a action with ownership to workers
Instance Method Summary collapse
- #dump ⇒ Object
-
#initialize ⇒ ActionOwnershipChannel
constructor
A new instance of ActionOwnershipChannel.
- #map ⇒ Object
-
#queue ⇒ Object
For debug.
- #queue_key(action_name, action_info) ⇒ Object
-
#request_action(action_name, action_info = {}) ⇒ Object
Called from schdeduler and worker action_name must be symbol.
-
#return_action_ownership(action_ownership) ⇒ Object
Called from worker only.
-
#take_action_ownership(new_owner) ⇒ Object
Called from worker only.
Constructor Details
#initialize ⇒ ActionOwnershipChannel
Returns a new instance of ActionOwnershipChannel.
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 13 def initialize @action_ownership_map = ActionOwnership.action_ownership_map @queue = {} # key: ["action_name", {<action_info>}] super end |
Instance Method Details
#dump ⇒ Object
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 88 def dump $log.info "\n" + <<EOT ======== action_ownership_channel dump queue: #{@queue} action_ownership_map: #{@action_ownership_map} ======== EOT end |
#map ⇒ Object
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 84 def map @action_ownership_map.dup end |
#queue ⇒ Object
For debug
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 80 def queue @queue.dup end |
#queue_key(action_name, action_info) ⇒ Object
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 44 def queue_key(action_name, action_info) [action_name, (action_info || {})[:id]].to_json end |
#request_action(action_name, action_info = {}) ⇒ Object
Called from schdeduler and worker action_name must be symbol
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 21 def request_action(action_name, action_info = {}) action_ownership = @action_ownership_map[action_name] if action_ownership.nil? # unknown action. probably a new action log_warn "unsupported action `#{action_name}'. Skip." return false end qkey = queue_key(action_name, action_info) self.synchronize do if @queue.has_key?(qkey) false else @queue[qkey] = { action_ownership: action_ownership, action_info: action_info } true end end end |
#return_action_ownership(action_ownership) ⇒ Object
Called from worker only
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 72 def return_action_ownership(action_ownership) self.synchronize do action_ownership.owner = nil action_ownership.last_processed_time = Time.now.to_f end end |
#take_action_ownership(new_owner) ⇒ Object
Called from worker only
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# File 'lib/flydata/helper/action_ownership_channel.rb', line 49 def take_action_ownership(new_owner) self.synchronize do return nil if @queue.empty? # Wait until action will be processed action = @queue.values.first action_ownership = action[:action_ownership] return nil if action_ownership.processing? # Check resource change flag if action_ownership.resource_change && @action_ownership_map.any? { |name, act_own| (act_own.resource_change && act_own.processing?) } return nil end @queue.shift # delete last acion from queue action_ownership.owner = new_owner action end end |