/**
* Check a received value for basic problems before passing it on to the sample mechanism
*
* @param value Value as received from network layer
* @return Value to be used for archive
*/
private VType checkReceivedValue(VType value) {
if (value instanceof Time) {
try {
final Time time = (Time) value;
// Invoke time.getTimestamp() to detect RuntimeError in VType 2013/11/01
if (time.isTimeValid() && time.getTimestamp() != null) return value;
else {
trouble_sample_log.log("'" + getName() + "': Invalid time stamp ");
value = VTypeHelper.transformTimestamp(value, Timestamp.now());
}
} catch (RuntimeException ex) {
Logger.getLogger(getClass().getName())
.log(Level.WARNING, "'" + getName() + "': Exception getting time stamp", ex);
value = VTypeHelper.transformTimestamp(value, Timestamp.now());
}
} else trouble_sample_log.log("'" + getName() + "': Received no time information for " + value);
return value;
}
/**
* Add given info value to buffer, tweaking its time stamp if necessary
*
* @param value Value to archive
* @return Value that was actually added, which may have adjusted time stamp
*/
protected final VType addInfoToBuffer(VType value) {
synchronized (this) {
if (last_archived_value != null) {
final Timestamp last = VTypeHelper.getTimestamp(last_archived_value);
if (last.compareTo(VTypeHelper.getTimestamp(value)) >= 0) { // Patch the time stamp
final Timestamp next = last.plus(TimeDuration.ofMillis(100));
value = VTypeHelper.transformTimestamp(value, next);
}
// else: value is OK as is
}
}
addValueToBuffer(value);
return value;
}
