<?php
# ------------------------------------------------------------
# Dateiname:        $Source: AlarmValuation $
# Version:          $Revision: 0.1 $
# Datum geaendert:  $Date: 2011/01/30 15:00:00 $
# Autor:            $Author: frido $
#   ---------------------------------------------------------

// imports
require_once 'AlarmManagement/DataTypes/ServInfl.php';
require_once 'AlarmManagement/DataTypes/AlarmSevty.php';

class AlarmValuation {
	
	function valuateAlarm (
			$aed_id,
			ServInfl $serv_infl)
	{
		// correction of Bug 33: check consistency of threshold data
		$tasar = ThresholdAlarmSeverityAssignmentRuleQuery::create()->findOneByAedId($aed_id);
		$thr_proc = $serv_infl->getValue() == ServInfl::SI_THRAFF;
		if ($tasar && ! $thr_proc)
			throw new Exception("threshold value expected.");
		
		// process threshold alarms
		if ($thr_proc) {
			$obs_val = $serv_infl->getObsVal();
			if ($tasar == null) {
				
				// create dummy tasar
				$tasar = new ThresholdAlarmSeverityAssignmentRule();
				$tasar->setName("AutoGenerated");
				$tasar->setAedId($aed_id);
				$tasar->setCntValClear(0);
				$tasar->setCntValWarn(0);
				$tasar->setCntValMin(0);
				$tasar->setCntValMaj(0);
				$tasar->setCntValCrit($obs_val);
				$tasar->save();
			}
			if ($tasar->getCntValCrit() > $tasar->getCntValClear()) {
				// positive count direction
				if ($obs_val >= $tasar->getCntValCrit()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_CRIT);
				} elseif ($obs_val >= $tasar->getCntValMaj()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_MAJ);
				} elseif ($obs_val >= $tasar->getCntValMin()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_MIN);
				} elseif ($obs_val >= $tasar->getCntValWarn()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_WARN);
				} else {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_CLEAR);
				}
			} else {
				if ($obs_val <= $tasar->getCntValCrit()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_CRIT);
				} elseif ($obs_val <= $tasar->getCntValMaj()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_MAJ);
				} elseif ($obs_val <= $tasar->getCntValMin()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_MIN);
				} elseif ($obs_val <= $tasar->getCntValWarn()) {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_WARN);
				} else {
					$alm_sev = new AlarmSevty(AlarmSevty::AS_CLEAR);
				}
			}			
			return($alm_sev);
		}
		
		// default values of alarm severity depending on service influence
		switch ($serv_infl->getValue()) {
			case ServInfl::SI_INDEP:
				$alm_sev = new AlarmSevty(AlarmSevty::AS_MAJ);
				break;
			case ServInfl::SI_NONAFF:
				$alm_sev = new AlarmSevty(AlarmSevty::AS_MIN);
				break;
			case ServInfl::SI_AFF:
				$alm_sev = new AlarmSevty(AlarmSevty::AS_CRIT);
				break;
			default: throw new Exception("invalid service influence: $serv_infl");
		}

		// search for matching alarm severity assignment rules ordered by precedence
		$asar_lst = AlarmSeverityAssignmentRuleQuery::create()->find();
		$aes_lst  = AssignmentEventSelectorQuery::create()->findByAedId($aed_id);
		$max_prec = 0;

		foreach ($asar_lst as $asar) {
			$asar_id = $asar->getId();

			if ($asar->getEvtSelMode()->getValue() == SelectMode::SM_EXCL) {
				$prc_asar = TRUE;

				foreach ($aes_lst as $aes) {
					if ($aes->getAsarId() == $asar_id) {
						$prc_asar = FALSE;
						break;
					}
				}
			} else {
				$prc_asar = FALSE; 

				foreach ($aes_lst as $aes) {
					if ($aes->getAsarId() == $asar_id) {
						$prc_asar = TRUE;
						break;
					}
				}
			}

			if ($prc_asar && ($prec = $asar->getPrecedence()) > $max_prec) {
				$max_prec = $prec;

				switch ($serv_infl->getValue()) {
					case ServInfl::SI_INDEP:
						$alm_sev = $asar->getSevServIndep();
						break;
					case ServInfl::SI_NONAFF:
						$alm_sev = $asar->getSevServUnaff();
						break;
					case ServInfl::SI_AFF:
						$alm_sev = $asar->getSevServAff();
						break;
					default: throw new Exception("invalid service influence: $serv_infl");
				}
			}
		}
			
		return($alm_sev);
	}
}
?>