Public.getoutagetimeinwindow (function)

wikibot

CREATE OR REPLACE FUNCTION public.getoutagetimeinwindow(integer, character varying, integer, timestamp without time zone, timestamp without time zone)

RETURNS double precision
LANGUAGE plpgsql

AS $function$

  DECLARE

nid ALIAS FOR $1; ipid ALIAS FOR $2; sid ALIAS FOR $3; xtime ALIAS FOR $4; ytime ALIAS FOR $5; orec RECORD; lostTime timestamp without time zone; gainTime timestamp without time zone; downtime float8; zero CONSTANT float8 := 0.0; epochTime CONSTANT timestamp without time zone := to_timestamp('01 Jan 1970 00:00:00', 'DD Mon YYYY HH24:MI:SS');

  BEGIN
  	downtime = zero;
  	FOR orec IN SELECT ifLostService,ifRegainedService

FROM outages WHERE (nodeID = nid AND ipAddr = ipid AND serviceID = sid AND ((ifRegainedService IS NULL AND ifLostService <= xtime) OR (ifRegainedService > ytime))) LOOP BEGIN gainTime := epochTime; lostTime := orec.ifLostService; IF orec.ifRegainedService IS NOT NULL THEN gainTime := orec.ifRegainedService; END IF; -- -- Find the appropriate records -- IF xtime > lostTime THEN -- -- for any outage to be in window of -- opportunity the lost time must ALWAYS be -- less that the x time. -- IF gainTime = epochTime THEN -- -- if the gain time is epochTime then the outage -- does not have an uptime. -- IF ytime > lostTime THEN downtime := downtime + EXTRACT(EPOCH FROM (xtime - ytime)); ELSE downtime := downtime + EXTRACT(EPOCH FROM (xtime - lostTime)); END IF; ELSE IF xtime > gainTime AND gainTime > ytime THEN -- -- regain time between x & y -- IF ytime > lostTime THEN downtime := downtime + EXTRACT (EPOCH FROM (gainTime - ytime)); ELSE downtime := downtime + EXTRACT (EPOCH FROM (gainTime - lostTime)); END IF; ELSE IF gainTime > xtime THEN -- -- regain time greater than x, lost less that x -- IF ytime > lostTime THEN downtime := downtime + EXTRACT (EPOCH FROM (xtime - ytime)); ELSE downtime := downtime + EXTRACT (EPOCH FROM (xtime - lostTime)); END IF; -- end gainTime > xtime END IF; -- end xtime > gainTime AND gainTime > ytime END IF; -- end gaintime == epochTime END IF; -- end xtime > lostTime END IF; END; END LOOP; RETURN downtime*1000.0;

  END;

$function$ |- | Select | Table | public.outages

|- | Execute | Function | public.getmanagedoutageforintfinwindow

|- | Execute | Function | public.getmanagedoutagefornodeinwindow

|- | Execute | Function | public.getpercentavailabilityinwindow