Method: L2Metable#monitor

Defined in:
lib/l2metable.rb

#monitor(subcomponent, extras = {}, &blk) ⇒ Object 



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# File 'lib/l2metable.rb', line 26

def monitor(subcomponent, extras = {}, &blk)
  unless block_given?
    # should never enter, but logging with something obvious instead of blowing up at runtime
    measure(dotted(subcomponent, "MONITOR_WITHOUT_BLOCK"), 1, extras)
    return
  end

  start = Time.now
  measure(dotted(subcomponent, "start"), 1, extras)

  res = nil
  ex = nil
  begin
    res = yield
  rescue => e
    log_exception(subcomponent, e, extras)
    ex = e
  end

  measure(dotted(subcomponent, "time"), Time.now - start, extras)

  if ex
    raise(ex)
  else
    res
  end
end