class SidekiqScheduler::Scheduler

Attributes

dynamic[RW]

Set to update the schedule in runtime in a given time period.

dynamic_every[RW]

Set to update the schedule in runtime dynamically per this period.

enabled[RW]

Set to enable or disable the scheduler.

listened_queues_only[RW]

Set to schedule jobs only when will be pushed to queues listened by sidekiq

Private Class Methods

instance() click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 31
def instance
  @instance = new unless @instance
  @instance
end
instance=(value) click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 36
def instance=(value)
  @instance = value
end
method_missing(method, *arguments, &block) click to toggle source
Calls superclass method
# File lib/sidekiq-scheduler/scheduler.rb, line 40
def method_missing(method, *arguments, &block)
  instance_methods.include?(method) ? instance.public_send(method, *arguments) : super
end
new(options = {}) click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 45
def initialize(options = {})
  self.enabled = options[:enabled]
  self.dynamic = options[:dynamic]
  self.dynamic_every = options[:dynamic_every]
  self.listened_queues_only = options[:listened_queues_only]
end

Private Instance Methods

active_job_enqueue?(klass) click to toggle source

Returns true if the enqueuing needs to be done for an ActiveJob

class false otherwise.

@param [Class] klass the class to check is decendant from ActiveJob

@return [Boolean]

# File lib/sidekiq-scheduler/scheduler.rb, line 316
def active_job_enqueue?(klass)
  klass.is_a?(Class) && defined?(ActiveJob::Enqueuing) &&
    klass.included_modules.include?(ActiveJob::Enqueuing)
end
arguments_with_metadata(args, metadata) click to toggle source

Adds a Hash with schedule metadata as the last argument to call the worker. It currently returns the schedule time as a Float number representing the milisencods since epoch.

@example with hash argument

arguments_with_metadata({value: 1}, scheduled_at: Time.now)
#=> [{value: 1}, {scheduled_at: <miliseconds since epoch>}]

@param args [Array|Hash] @param metadata [Hash] @return [Array] arguments with added metadata

# File lib/sidekiq-scheduler/scheduler.rb, line 286
def arguments_with_metadata(args, metadata)
  if args.is_a? Array
    [*args, metadata]
  else
    [args, metadata]
  end
end
clear_schedule!(stop_option = :wait) click to toggle source

Stops old rufus scheduler and creates a new one. Returns the new rufus scheduler

@param [Symbol] stop_option The option to be passed to Rufus::Scheduler#stop

# File lib/sidekiq-scheduler/scheduler.rb, line 187
def clear_schedule!(stop_option = :wait)
  if @rufus_scheduler
    @rufus_scheduler.stop(stop_option)
    @rufus_scheduler = nil
  end

  @@scheduled_jobs = {}

  rufus_scheduler
end
enabled_queue?(job_queue, queues) click to toggle source

Returns true if a job's queue is included in the array of queues

If queues are empty, returns true.

@param [String] job_queue Job's queue name @param [Array<String>] queues

@return [Boolean]

# File lib/sidekiq-scheduler/scheduler.rb, line 306
def enabled_queue?(job_queue, queues)
  queues.empty? || queues.include?(job_queue)
end
enqueue_job(job_config, time = Time.now) click to toggle source

Enqueue a job based on a config hash

@param job_config [Hash] the job configuration @param time [Time] time the job is enqueued

# File lib/sidekiq-scheduler/scheduler.rb, line 157
def enqueue_job(job_config, time = Time.now)
  config = prepare_arguments(job_config.dup)

  if config.delete('include_metadata')
    config['args'] = arguments_with_metadata(config['args'], scheduled_at: time.to_f)
  end

  if active_job_enqueue?(config['class'])
    SidekiqScheduler::Utils.enqueue_with_active_job(config)
  else
    SidekiqScheduler::Utils.enqueue_with_sidekiq(config)
  end
end
handle_errors() { || ... } click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 349
def handle_errors
  begin
    yield
  rescue StandardError => e
    Sidekiq.logger.info "#{e.class.name}: #{e.message}"
  end
end
idempotent_job_enqueue(job_name, time, config) click to toggle source

Pushes the job into Sidekiq if not already pushed for the given time

@param [String] job_name The job's name @param [Time] time The time when the job got cleared for triggering @param [Hash] config Job's config hash

# File lib/sidekiq-scheduler/scheduler.rb, line 139
def idempotent_job_enqueue(job_name, time, config)
  registered = SidekiqScheduler::RedisManager.register_job_instance(job_name, time)

  if registered
    Sidekiq.logger.info "queueing #{config['class']} (#{job_name})"

    handle_errors { enqueue_job(config, time) }

    SidekiqScheduler::RedisManager.remove_elder_job_instances(job_name)
  else
    Sidekiq.logger.debug { "Ignoring #{job_name} job as it has been already enqueued" }
  end
end
job_enabled?(name) click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 228
def job_enabled?(name)
  job = Sidekiq.schedule[name]
  schedule_state(name).fetch('enabled', job.fetch('enabled', true)) if job
end
load_schedule!() click to toggle source

Pulls the schedule from Sidekiq.schedule and loads it into the rufus scheduler instance

# File lib/sidekiq-scheduler/scheduler.rb, line 69
def load_schedule!
  if enabled
    Sidekiq.logger.info 'Loading Schedule'

    # Load schedule from redis for the first time if dynamic
    if dynamic
      Sidekiq.reload_schedule!
      @current_changed_score = Time.now.to_f
      rufus_scheduler.every(dynamic_every) do
        update_schedule
      end
    end

    Sidekiq.logger.info 'Schedule empty! Set Sidekiq.schedule' if Sidekiq.schedule.empty?

    @scheduled_jobs = {}
    queues = sidekiq_queues

    Sidekiq.schedule.each do |name, config|
      if !listened_queues_only || enabled_queue?(config['queue'].to_s, queues)
        load_schedule_job(name, config)
      else
        Sidekiq.logger.info { "Ignoring #{name}, job's queue is not enabled." }
      end
    end

    Sidekiq.logger.info 'Schedules Loaded'
  else
    Sidekiq.logger.info 'SidekiqScheduler is disabled'
  end
end
load_schedule_job(name, config) click to toggle source

Loads a job schedule into the Rufus::Scheduler and stores it in @scheduled_jobs

# File lib/sidekiq-scheduler/scheduler.rb, line 102
def load_schedule_job(name, config)
  # If rails_env is set in the config, enforce ENV['RAILS_ENV'] as
  # required for the jobs to be scheduled.  If rails_env is missing, the
  # job should be scheduled regardless of what ENV['RAILS_ENV'] is set
  # to.
  if config['rails_env'].nil? || rails_env_matches?(config)
    Sidekiq.logger.info "Scheduling #{name} #{config}"
    interval_defined = false
    interval_types = %w(cron every at in interval)
    interval_types.each do |interval_type|
      config_interval_type = config[interval_type]

      if !config_interval_type.nil? && config_interval_type.length > 0

        schedule, options = SidekiqScheduler::RufusUtils.normalize_schedule_options(config_interval_type)

        rufus_job = new_job(name, interval_type, config, schedule, options)
        @scheduled_jobs[name] = rufus_job
        SidekiqScheduler::Utils.update_job_next_time(name, rufus_job.next_time)

        interval_defined = true

        break
      end
    end

    unless interval_defined
      Sidekiq.logger.info "no #{interval_types.join(' / ')} found for #{config['class']} (#{name}) - skipping"
    end
  end
end
new_job(name, interval_type, config, schedule, options) click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 241
def new_job(name, interval_type, config, schedule, options)
  options = options.merge({ :job => true, :tags => [name] })

  rufus_scheduler.send(interval_type, schedule, options) do |job, time|
    idempotent_job_enqueue(name, time, SidekiqScheduler::Utils.sanitize_job_config(config)) if job_enabled?(name)
  end
end
prepare_arguments(config) click to toggle source

Convert the given arguments in the format expected to be enqueued.

@param [Hash] config the options to be converted @option config [String] class the job class @option config [Hash/Array] args the arguments to be passed to the job

class

@return [Hash]

# File lib/sidekiq-scheduler/scheduler.rb, line 329
def prepare_arguments(config)
  config['class'] = SidekiqScheduler::Utils.try_to_constantize(config['class'])

  if config['args'].is_a?(Hash)
    config['args'].symbolize_keys! if config['args'].respond_to?(:symbolize_keys!)
  else
    config['args'] = Array(config['args'])
  end

  config
end
print_schedule() click to toggle source
rails_env_matches?(config) click to toggle source

Returns true if the given schedule config hash matches the current ENV @param [Hash] config The schedule job configuration

@return [Boolean] true if the schedule config matches the current ENV

# File lib/sidekiq-scheduler/scheduler.rb, line 345
def rails_env_matches?(config)
  config['rails_env'] && ENV['RAILS_ENV'] && config['rails_env'].gsub(/\s/, '').split(',').include?(ENV['RAILS_ENV'])
end
reload_schedule!() click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 198
def reload_schedule!
  if enabled
    Sidekiq.logger.info 'Reloading Schedule'
    clear_schedule!
    load_schedule!
  else
    Sidekiq.logger.info 'SidekiqScheduler is disabled'
  end
end
rufus_scheduler() click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 179
def rufus_scheduler
  @rufus_scheduler ||= SidekiqScheduler::Utils.new_rufus_scheduler(rufus_scheduler_options)
end
rufus_scheduler_options() click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 171
def rufus_scheduler_options
  @rufus_scheduler_options ||= {}
end
rufus_scheduler_options=(options) click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 175
def rufus_scheduler_options=(options)
  @rufus_scheduler_options = options
end
schedule_state(name) click to toggle source

Retrieves a schedule state

@param name [String] with the schedule's name @return [Hash] with the schedule's state

# File lib/sidekiq-scheduler/scheduler.rb, line 261
def schedule_state(name)
  state = SidekiqScheduler::RedisManager.get_job_state(name)

  state ? JSON.parse(state) : {}
end
scheduled_jobs() click to toggle source

the Rufus::Scheduler jobs that are scheduled

# File lib/sidekiq-scheduler/scheduler.rb, line 53
def scheduled_jobs
  @scheduled_jobs
end
set_schedule_state(name, state) click to toggle source

Saves a schedule state

@param name [String] with the schedule's name @param name [Hash] with the schedule's state

# File lib/sidekiq-scheduler/scheduler.rb, line 271
def set_schedule_state(name, state)
  SidekiqScheduler::RedisManager.set_job_state(name, state)
end
sidekiq_queues() click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 294
def sidekiq_queues
  Sidekiq.options[:queues].map(&:to_s)
end
toggle_job_enabled(name) click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 233
def toggle_job_enabled(name)
  state = schedule_state(name)
  state['enabled'] = !job_enabled?(name)
  set_schedule_state(name, state)
end
unschedule_job(name) click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 249
def unschedule_job(name)
  if scheduled_jobs[name]
    Sidekiq.logger.debug "Removing schedule #{name}"
    scheduled_jobs[name].unschedule
    scheduled_jobs.delete(name)
  end
end
update_schedule() click to toggle source
# File lib/sidekiq-scheduler/scheduler.rb, line 208
def update_schedule
  last_changed_score, @current_changed_score = @current_changed_score, Time.now.to_f
  schedule_changes = SidekiqScheduler::RedisManager.get_schedule_changes(last_changed_score, @current_changed_score)

  if schedule_changes.size > 0
    Sidekiq.logger.info 'Updating schedule'

    Sidekiq.reload_schedule!
    schedule_changes.each do |schedule_name|
      if Sidekiq.schedule.keys.include?(schedule_name)
        unschedule_job(schedule_name)
        load_schedule_job(schedule_name, Sidekiq.schedule[schedule_name])
      else
        unschedule_job(schedule_name)
      end
    end
    Sidekiq.logger.info 'Schedule updated'
  end
end