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module ActiveJob
module Core
extend ActiveSupport::Concern
included do
# Job arguments
attr_accessor :arguments
attr_writer :serialized_arguments
# Timestamp when the job should be performed
attr_accessor :scheduled_at
# Job Identifier
attr_accessor :job_id
# Queue in which the job will reside.
attr_writer :queue_name
end
module ClassMethods
# Creates a new job instance from a hash created with +serialize+
def deserialize(job_data)
job = job_data['job_class'].constantize.new
job.job_id = job_data['job_id']
job.queue_name = job_data['queue_name']
job.serialized_arguments = job_data['arguments']
job
end
# Creates a job preconfigured with the given options. You can call
# perform_later with the job arguments to enqueue the job with the
# preconfigured options
#
# ==== Options
# * <tt>:wait</tt> - Enqueues the job with the specified delay
# * <tt>:wait_until</tt> - Enqueues the job at the time specified
# * <tt>:queue</tt> - Enqueues the job on the specified queue
#
# ==== Examples
#
# VideoJob.set(queue: :some_queue).perform_later(Video.last)
# VideoJob.set(wait: 5.minutes).perform_later(Video.last)
# VideoJob.set(wait_until: Time.now.tomorrow).perform_later(Video.last)
# VideoJob.set(queue: :some_queue, wait: 5.minutes).perform_later(Video.last)
# VideoJob.set(queue: :some_queue, wait_until: Time.now.tomorrow).perform_later(Video.last)
def set(options={})
ConfiguredJob.new(self, options)
end
end
# Creates a new job instance. Takes as arguments the arguments that
# will be passed to the perform method.
def initialize(*arguments)
@arguments = arguments
@job_id = SecureRandom.uuid
@queue_name = self.class.queue_name
end
# Returns a hash with the job data that can safely be passed to the
# queueing adapter.
def serialize
{
'job_class' => self.class.name,
'job_id' => job_id,
'queue_name' => queue_name,
'arguments' => serialize_arguments(arguments)
}
end
private
def deserialize_arguments_if_needed
if defined?(@serialized_arguments) && @serialized_arguments.present?
@arguments = deserialize_arguments(@serialized_arguments)
@serialized_arguments = nil
end
end
def serialize_arguments(serialized_args)
Arguments.serialize(serialized_args)
end
def deserialize_arguments(serialized_args)
Arguments.deserialize(serialized_args)
end
end
end
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