Class: Pipeline::Stage::Base

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/pipeline/stage/base.rb

Constant Summary collapse

@@chain = 
[]

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.>>(next_stage) ⇒ Object 



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# File 'lib/pipeline/stage/base.rb', line 17

def self.>>(next_stage)
  @@chain << self
  next_stage
end

.build_chain ⇒ Object 



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# File 'lib/pipeline/stage/base.rb', line 22

def self.build_chain
  chain = @@chain + [self]
  @@chain = []
  chain
end

Instance Method Details

#after_initialize ⇒ Object 



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# File 'lib/pipeline/stage/base.rb', line 30

def after_initialize
  self.name ||= (default_name || self.class).to_s
  self[:status] = :not_started if new_record?
end

#completed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pipeline/stage/base.rb', line 35

def completed?
  status == :completed
end

#perform ⇒ Object

Raises:



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# File 'lib/pipeline/stage/base.rb', line 39

def perform
  raise InvalidStatusError.new(status) unless [:not_started, :failed].include?(status)
  begin
    _setup
    run
    self.status = :completed
  rescue => e
    logger.info("Error on stage #{default_name}: #{e.message}")
    logger.info(e.backtrace.join("\n"))
    self.message = e.message
    self.status = :failed
    raise e
  end
end

#run ⇒ Object

Subclass must implement this as part of the contract



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# File 'lib/pipeline/stage/base.rb', line 55

def run; end