Class: PerformEvery::Job

Inherits:
ActiveRecord::Base
  • Object
show all
Includes:
Helper
Defined in:
lib/perform_every/job.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Helper

#distance, #enqueue_job

Instance Attribute Details

#accuracy ⇒ Object

Returns the value of attribute accuracy.



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# File 'lib/perform_every/job.rb', line 9

def accuracy
  @accuracy
end

Instance Method Details

#==(j) ⇒ Object 



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# File 'lib/perform_every/job.rb', line 148

def ==(j)
  self.job_name == j.job_name && self.typ == j.typ && self.value == j.value
end

#add_history(t = Time.now.utc) ⇒ Object 



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# File 'lib/perform_every/job.rb', line 118

def add_history(t = Time.now.utc)
  self.history ||= []
  self.history << t.to_s
  self.history.shift(self.history.count - MAX_HISTORY) if self.history.count > MAX_HISTORY
end

#from_reflection_store(attr) ⇒ Object 



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# File 'lib/perform_every/job.rb', line 17

def from_reflection_store(attr)
  s = PerformEvery::Reflection.find(self)
  return nil if s.nil?
  s.send(attr.to_sym)
end

#mark_deprecated! ⇒ Object 



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# File 'lib/perform_every/job.rb', line 160

def mark_deprecated!
  self.deprecated = true
  self.save!
end

#parse_interval_value ⇒ Object 



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# File 'lib/perform_every/job.rb', line 134

def parse_interval_value
  raise "must be interval" if self.value.blank?
  interval = ::Fugit::Nat.parse("every " + self.value, multi: :fail)
  raise "must be interval" if interval.blank? || !interval.is_a?(::Fugit::Cron)
  return interval
end

#parse_timestamp_value ⇒ Object 



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# File 'lib/perform_every/job.rb', line 141

def parse_timestamp_value
  raise "must be timestamp" if self.value.blank?
  timestamp = ::Fugit::At.parse(self.value)
  raise "must be timestamp" if timestamp.blank? || !timestamp.is_a?(::EtOrbi::EoTime)
  return timestamp
end

#perform!(now = Time.now.utc) ⇒ Object 



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# File 'lib/perform_every/job.rb', line 37

def perform!(now = Time.now.utc)
  return :skip_deprecated if self.perform_at.blank? || self.deprecated

  if self.too_old?(now)
    rescue_perform_at = self.perform_at
    self.perform_at = self.perform_once? ? nil : self.perform_next_at
    self.deprecated = self.perform_once?
    self.save!

    # prepare debug log
    log = []
    log << "'#{self.title}' was skipped."
    log << "It was scheduled for #{rescue_perform_at} but now it's #{distance(now, rescue_perform_at)} too late to still run the job."
    if self.perform_multi?
      log << "The job is scheduled to perform next in #{distance(now, self.perform_at)} at #{self.perform_at}."
    else
      log << "This one-time job will not be scheduled again."
    end
    Rails.logger.error log.join(" ")

    return :skip_too_old
  end

  if !self.perform?(now)
    # prepare debug log
    log = []
    log << "'#{self.title}' was skipped."
    perform_next_str = ""
    unless self.last_performed_at.blank?
      log << "It ran #{distance(now, self.last_performed_at)} ago."
      perform_next_str = "next"
    else
      perform_next_str = self.perform_once? ? "once" : "for the first time"
    end
    unless self.perform_at.blank?
      log << "The job is scheduled to perform #{perform_next_str} in #{distance(now, self.perform_at)} at #{self.perform_at}."
    end
    Rails.logger.debug log.join(" ")

    return :skip
  end

  # call the actual job
  schedule_error = nil
  unless PerformEvery.dry_run
    schedule_error = enqueue_job(self.job_name)
  end

  # prepare debug log
  log = []
  unless schedule_error
    log << "'#{self.title}' was scheduled."
  else
    log << "'#{self.title}' failed with error: #{schedule_error}."
  end
  if self.perform_multi?
    log << "The job is scheduled to perform next in #{distance(now, self.perform_next_at)} at #{self.perform_next_at}."
  else
    log << "This one-time job will not be scheduled again."
  end

  unless schedule_error
    Rails.logger.debug log.join(" ")
  else
    Rails.logger.error log.join(" ")
  end

  # log warning if job is performed with more than 1 minute delay
  if now - self.perform_at > 1.minute
    Rails.logger.warn "'#{self.title}' was run with a delay of #{distance(now, self.perform_at)}."
  end

  self.last_performed_at = now.utc
  self.add_history(self.last_performed_at)
  self.perform_at = self.perform_once? ? nil : self.perform_next_at
  self.deprecated = self.perform_once?
  self.save!

  return schedule_error.blank? ? :perform : :error
end

#perform?(now = Time.now.utc) ⇒ Boolean 



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# File 'lib/perform_every/job.rb', line 23

def perform?(now = Time.now.utc)
  return false if self.deprecated
  return false if self.perform_at.blank?
  return false if self.too_old?(now)

  now >= self.perform_at && (self.last_performed_at.blank? || self.last_performed_at < self.perform_at)
end

#perform_multi? ⇒ Boolean 



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# File 'lib/perform_every/job.rb', line 156

def perform_multi?
  self.typ == "interval"
end

#perform_next_at ⇒ Object 



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# File 'lib/perform_every/job.rb', line 124

def perform_next_at
  if self.typ == "interval"
    self.parse_interval_value.next_time.utc
  elsif self.typ == "timestamp"
    self.parse_timestamp_value.utc
  else
    raise "unknown typ"
  end
end

#perform_once? ⇒ Boolean 



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# File 'lib/perform_every/job.rb', line 152

def perform_once?
  self.typ == "timestamp"
end

#title ⇒ Object 



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# File 'lib/perform_every/job.rb', line 11

def title
  return "#{self.job_name} every #{self.value}" if self.typ == "interval"
  return "#{self.job_name} at #{self.value}" if self.typ == "timestamp"
  raise "unknown typ"
end

#too_old?(now = Time.now.utc) ⇒ Boolean 



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# File 'lib/perform_every/job.rb', line 31

def too_old?(now = Time.now.utc)
  raise "job is not scheduled to run because perform_at is nil" if self.perform_at.blank?
  accuracy = self.from_reflection_store(:accuracy) || PerformEvery::DEFAULT_ACCURACY
  now - self.perform_at >= accuracy
end