/** * Checks whether an edge-triggered alarm can be fired (does not care about the suppress interval * - use the <code>isSuppressed</code> method). * * @param value The current value of the corresponding managed object field * @param alarmControl The alarm control * @return <code>true</code> if it can be fired, <code>false</code> otherwise */ private boolean isEdgeTriggeredAlarmReadyForFire( long value, EdgeTriggeredAlarmControl alarmControl) { if (alarmControl.getEnabled()) { boolean fallingEdge = alarmControl.getDirection() == EdgeTriggeredAlarmDirection.FALLING; if (alarmControl.getStatus() == EdgeTriggeredAlarmStatus.FIRED) { if (fallingEdge) { if (value > alarmControl.getRearmThreshold()) alarmControl.setStatus(EdgeTriggeredAlarmStatus.ARMED); } else { if (value < alarmControl.getRearmThreshold()) alarmControl.setStatus(EdgeTriggeredAlarmStatus.ARMED); } } if (alarmControl.getStatus() == EdgeTriggeredAlarmStatus.ARMED) { if (fallingEdge) { if (value < alarmControl.getAlarmThreshold()) { return true; } } else { if (value > alarmControl.getAlarmThreshold()) { return true; } } } } return false; }
/** * Fires an alarm iff all relevant conditions are fulfilled. * * @param alarm The alarm * @param alarmControl The alarm control */ public void fireAlarm(Alarm alarm, AlarmControl alarmControl) { if (alarmControl.getEnabled()) { try { if (alarm instanceof TTOperStatusAlarm) { TTOperStatusAlarm operStatusAlarm = (TTOperStatusAlarm) alarm; TTOperationalStatusAlarmControl operStatusAlarmControl = (TTOperationalStatusAlarmControl) alarmControl; if ((operStatusAlarmControl.getTriggerFromState() == OperationalStatus.ANY) || (operStatusAlarmControl.getTriggerToState() == OperationalStatus.ANY) || (operStatusAlarm.getFromState() == operStatusAlarmControl.getTriggerFromState()) || (operStatusAlarm.getToState() == operStatusAlarmControl.getTriggerToState())) { if (!alarmIsSuppressed(operStatusAlarmControl)) { fireAlarm_(operStatusAlarm, operStatusAlarmControl); } else { operStatusAlarm.suppress(); log.debug(operStatusAlarm.getName() + " suppressed"); } } } else if (alarmControl instanceof EdgeTriggeredAlarmControl) { EdgeTriggeredAlarmControl edgeTriggeredAlarmControl = (EdgeTriggeredAlarmControl) alarmControl; if (edgeTriggeredAlarmControl.getStatus() == EdgeTriggeredAlarmStatus.ARMED) { if (!alarmIsSuppressed(edgeTriggeredAlarmControl)) { fireAlarm_(alarm, edgeTriggeredAlarmControl); } else { alarm.suppress(); log.debug(alarm.getName() + " suppressed"); } } } else { if (!alarmIsSuppressed(alarmControl)) { fireAlarm_(alarm, alarmControl); } else { alarm.suppress(); log.debug(alarm.getName() + " suppressed"); } } } catch (ClassCastException cce) { log.error("Alarm and AlarmControl don't match."); } } }