/**
* Record the setpoint and readback values as described in the Element Scan Table. These will be
* used for reference in the relative scan mode.
*
* @throws NotificationException
* @throws ChannelAccessException
*/
private void readInitialValues() throws NotificationException, ChannelAccessException {
/** Read the initial setpoint values of PVs */
initialSetpointValues = PVConnection.readPvValues(getPVs());
// System.out.println(initialSetpointValues.toString());
/** Read the initial readback values of corresponding PVs */
initialReadbackValues = PVConnection.readPvValues(thresholdPVs);
}
/**
* Steps
*
* @throws NotificationException
*/
@Override
public Integer setNextStep(Scenario model) throws NotificationException {
/** Read from table new value to set */
Map<String, Double> newPvValues = new HashMap<String, Double>();
for (String pv : getPVs()) {
String newValue = getPvValueByName(getStepNumber(), pv);
if (newValue.equals("SKIP")) {
// Do Nothing
} else {
try {
// Check if real number
newPvValues.put(pv, Double.valueOf(newValue));
} catch (Exception e) {
throw new NotificationException(
newValue + " Is not a valid number format. Plean use a valid format or \"SKIP\"");
}
}
}
/** If relative flag, add initial setpoint value. Applies to all values in current step. */
if (useRelative.get(getStepNumber()) == 1) {
for (String pv : newPvValues.keySet()) {
newPvValues.put(pv, newPvValues.get(pv) + initialSetpointValues.get(pv));
}
}
/** Set PVs */
try {
PVConnection.setPvValues(newPvValues);
} catch (ChannelAccessException e) {
throw new NotificationException("ChannelAccessException");
}
/** Return information about use of acquisition */
return useAcquisition.get(getStepNumber());
}
@Override
public boolean checkThresholds() throws NotificationException, ThresholdException {
for (int i = 0; i < thresholdPVs.size(); i++) {
if (thresholdPVs.get(i).equals("EMPTY"))
throw new NotificationException(
"The \"EMPTY\" input is depricated. Please use \"IGNORE\" in comparison method line");
if (thresholdCheckMethod.get(i).equals("IGNORE")) {
continue;
}
String setValueString = getPvByIndex(getStepNumber(), i);
if (setValueString.equals("SKIP")) continue; // Don't compare to values never set
Double actual = Double.NaN;
Double expected = Double.valueOf(setValueString);
Double comparisonValue = thresholdValues.get(i);
try {
actual = PVConnection.readPvValue(thresholdPVs.get(i));
} catch (ChannelAccessException e) {
throw new NotificationException(
"Error accessing threshold channel: " + thresholdPVs.get(i));
}
if (thresholdCheckMethod.get(i).equals("RATIO")) { // Ratio
if (Math.abs((expected - actual) / expected) > comparisonValue)
throw new ThresholdException(getPVs().get(i), expected, actual);
} else if (!thresholdCheckMethod.get(i).equals("DIFFERENCE")) { // Difference
if (Math.abs(expected - actual) > comparisonValue)
throw new ThresholdException(getPVs().get(i), expected, actual);
}
}
return true;
}
