Module: Periodically

Defined in:
lib/periodically/cli.rb,
lib/periodically.rb,
lib/periodically/job.rb,
lib/periodically/debug.rb,
lib/periodically/defer.rb,
lib/periodically/locks.rb,
lib/periodically/model.rb,
lib/periodically/redis.rb,
lib/periodically/version.rb,
lib/periodically/error_counts.rb,
lib/periodically/error_handler.rb,
lib/periodically/error_messages.rb

Overview

This file handles running Periodically in another process

Defined Under Namespace

Modules: Debug, Defer, ErrorCounts, ErrorHandler, ErrorMessages, Locks, Model Classes: CLI, Job, RedisConnection

Constant Summary collapse

REDIS_DEFAULTS = 
{
  namespace: "periodically"
}
DEFAULT_ERROR_DELAY = 
proc { |count| (count ** 4) + 15 + (rand(30)*(count+1)) }
VERSION = 
"0.1.0"
@@registered = 
[]

Class Method Summary collapse

Class Method Details

._registered_jobs ⇒ Object 



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# File 'lib/periodically.rb', line 48

def self._registered_jobs
  @@registered
end

.execute_next ⇒ Object 



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# File 'lib/periodically.rb', line 30

def self.execute_next
  found_job, instance = @@registered.lazy.filter_map do |job|
    instance = job.poll_next_instance
    [job, instance] if instance
  end.first

  if found_job && instance
    found_job.execute_instance(instance)
    true
  else
    false
  end
end

.logger ⇒ Object 



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# File 'lib/periodically.rb', line 22

def self.logger
  @logger ||= Logger.new(STDOUT)
end

.logger=(new_logger) ⇒ Object 



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# File 'lib/periodically.rb', line 19

def self.logger=(new_logger)
  @logger ||= new_logger
end

.redis ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/periodically.rb', line 56

def self.redis
  raise ArgumentError, "requires a block" unless block_given?
  redis_pool.with do |conn|
    yield conn
  end
end

.redis_pool ⇒ Object 



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# File 'lib/periodically.rb', line 52

def self.redis_pool
  @redis ||= Periodically::RedisConnection.create(REDIS_DEFAULTS)
end

.register(klass, method, opts) ⇒ Object 



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# File 'lib/periodically.rb', line 44

def self.register(klass, method, opts)
  @@registered.push(Periodically::Job.new(klass, method, opts))
end

.start ⇒ Object 



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# File 'lib/periodically.rb', line 63

def self.start
  Periodically.redis { |conn| conn.ping }
  
  Thread.new do
    while true
      executed = Periodically.execute_next
      if executed
        sleep 1.seconds
      else
        sleep 10.seconds
      end
    end
  end
end