Converts a String representation of a clock value into the float
representation used in this API.
Clock values have the following syntax:
Clock-val ::= ( Full-clock-val | Partial-clock-val | Timecount-val )
Full-clock-val ::= Hours ":" Minutes ":" Seconds ("." Fraction)?
Partial-clock-val ::= Minutes ":" Seconds ("." Fraction)?
Timecount-val ::= Timecount ("." Fraction)? (Metric)?
Metric ::= "h" | "min" | "s" | "ms"
Hours ::= DIGIT+; any positive number
Minutes ::= 2DIGIT; range from 00 to 59
Seconds ::= 2DIGIT; range from 00 to 59
Fraction ::= DIGIT+
Timecount ::= DIGIT+
2DIGIT ::= DIGIT DIGIT
DIGIT ::= [0-9]
try {
float result = 0;
// Will throw NullPointerException if clockValue is null
clockValue = clockValue.trim();
// Handle first 'Timecount-val' cases with metric
if (clockValue.endsWith("ms")) {
result = parseFloat(clockValue, 2, true);
} else if (clockValue.endsWith("s")) {
result = 1000*parseFloat(clockValue, 1, true);
} else if (clockValue.endsWith("min")) {
result = 60000*parseFloat(clockValue, 3, true);
} else if (clockValue.endsWith("h")) {
result = 3600000*parseFloat(clockValue, 1, true);
} else {
// Handle Timecount-val without metric
try {
return parseFloat(clockValue, 0, true) * 1000;
} catch (NumberFormatException _) {
// Ignore
}
// Split in {[Hours], Minutes, Seconds}
String[] timeValues = clockValue.split(":");
// Read Hours if present and remember location of Minutes
int indexOfMinutes;
if (timeValues.length == 2) {
indexOfMinutes = 0;
} else if (timeValues.length == 3) {
result = 3600000*(int)parseFloat(timeValues[0], 0, false);
indexOfMinutes = 1;
} else {
throw new IllegalArgumentException();
}
// Read Minutes
int minutes = (int)parseFloat(timeValues[indexOfMinutes], 0, false);
if ((minutes >= 00) && (minutes <= 59)) {
result += 60000*minutes;
} else {
throw new IllegalArgumentException();
}
// Read Seconds
float seconds = parseFloat(timeValues[indexOfMinutes + 1], 0, true);
if ((seconds >= 00) && (seconds < 60)) {
result += 60000*seconds;
} else {
throw new IllegalArgumentException();
}
}
return result;
} catch (NumberFormatException e) {
throw new IllegalArgumentException();
}
