Class: Pgbus::Recurring::Schedule

Inherits:
Object
  • Object
show all
Defined in:
lib/pgbus/recurring/schedule.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config: Pgbus.configuration) ⇒ Schedule

Returns a new instance of Schedule.



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# File 'lib/pgbus/recurring/schedule.rb', line 8

def initialize(config: Pgbus.configuration)
  @config = config
  @tasks = load_tasks
end

Instance Attribute Details

#tasks ⇒ Object (readonly)

Returns the value of attribute tasks.



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# File 'lib/pgbus/recurring/schedule.rb', line 6

def tasks
  @tasks
end

Instance Method Details

#build_payload(task) ⇒ Object 



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# File 'lib/pgbus/recurring/schedule.rb', line 53

def build_payload(task)
  if task.command
    {
      "job_class" => "Pgbus::Recurring::CommandJob",
      "arguments" => [task.command],
      "queue_name" => task.queue_name || @config.default_queue,
      "priority" => nil
    }
  else
    {
      "job_class" => task.class_name,
      "arguments" => task.arguments,
      "queue_name" => task.queue_name || @config.default_queue,
      "priority" => task.priority.zero? ? nil : task.priority
    }
  end
end

#due_tasks(time = Time.current) ⇒ Object 



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# File 'lib/pgbus/recurring/schedule.rb', line 13

def due_tasks(time = Time.current)
  tasks.filter_map do |task|
    run_at = canonical_run_at(task, time)
    [task, run_at] if run_at
  end
end

#enqueue_task(task, run_at:) ⇒ Object 



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# File 'lib/pgbus/recurring/schedule.rb', line 20

def enqueue_task(task, run_at:)
  queue = resolve_queue(task)
  acquired_key = acquire_uniqueness_lock(task)

  return if acquired_key == :already_locked

  RecurringExecution.record(task.key, run_at) do
    payload = build_payload(task)
    headers = build_headers(task, run_at)
    payload = inject_uniqueness_metadata(task, payload)

    Pgbus.client.ensure_queue(queue)
    Pgbus.client.send_message(queue, payload, headers: headers)

    Pgbus.logger.info do
      "[Pgbus] Enqueued recurring task #{task.key} (#{task.class_name || task.command}) " \
        "for run_at=#{run_at.iso8601}"
    end
  end
rescue AlreadyRecorded
  # AlreadyRecorded means this (task_key, run_at) was already enqueued.
  # If we acquired a NEW lock (prior lock was already released because the
  # job completed), release it — no message will use it. If we didn't
  # acquire a lock (nil or :already_locked), there's nothing to release.
  # In either case, we are NOT opening a race window because the job for
  # this run_at already ran or is running.
  release_uniqueness_lock(acquired_key)
  Pgbus.logger.debug { "[Pgbus] Recurring task #{task.key} already enqueued for #{run_at.iso8601}" }
rescue StandardError
  release_uniqueness_lock(acquired_key)
  raise
end