Module: TaskTempest::ErrorHandling

Included in:
Engine
Defined in:
lib/task_tempest/error_handling.rb

Constant Summary collapse

SHUTDOWN_EXCEPTIONS = 
[
  Interrupt,
  SystemExit,
  SignalException
]

Instance Method Summary collapse

Instance Method Details

#format_exception(e) ⇒ Object 



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# File 'lib/task_tempest/error_handling.rb', line 53

def format_exception(e)
  "#{e.class}: #{e.message}\n" + e.backtrace.join("\n")
end

#handle_shutdown_signal(e) ⇒ Object 



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# File 'lib/task_tempest/error_handling.rb', line 40

def handle_shutdown_signal(e)
  case e.message
  when "SIGTERM"
    logger.info "SIGTERM detected"
    dirty_shutdown
  when "SIGUSR2"
    logger.info "SIGUSR2 detected"
    clean_shutdown
  else
    false
  end
end

#with_error_handling(error_action = :continue) ⇒ Object 



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# File 'lib/task_tempest/error_handling.rb', line 10

def with_error_handling(error_action = :continue)
  yield
rescue *SHUTDOWN_EXCEPTIONS => e
  raise
rescue Exception => e
  on_internal_exception(e)
  case error_action
  when :halt
    logger.fatal format_exception(e)
    exit(-1)
  when :reraise
    logger.fatal format_exception(e)
    raise
  when :continue
    logger.error format_exception(e)
  else
    raise "Wtf man, typo."
  end
end

#with_shutdown_handling ⇒ Object 



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# File 'lib/task_tempest/error_handling.rb', line 30

def with_shutdown_handling
  yield
rescue *SHUTDOWN_EXCEPTIONS => e
  if e.class == SignalException
    handle_shutdown_signal(e) or raise
  else
    clean_shutdown
  end
end