/**
* Reflection based reduce by.
*
* @param array array of items to reduce by
* @param object function
* @param methodName name of method
* @param <T> type of function
* @return reduction
*/
private static <T> long reduceByR(final int[] array, T object, String methodName) {
try {
Method method = Invoker.invokeReducerLongIntReturnLongMethod(object, methodName);
long sum = 0;
for (int v : array) {
sum = (long) method.invoke(object, sum, v);
}
return sum;
} catch (Throwable throwable) {
return handle(Long.class, throwable, "Unable to perform reduceBy");
}
}
/**
* Reflection based reduce by.
*
* @param array array of items to reduce by
* @param object function
* @param <T> type of function
* @return reduction
*/
private static <T> long reduceByR(final int[] array, int length, T object) {
try {
Method method = Invoker.invokeReducerLongIntReturnLongMethod(object);
long sum = 0;
for (int index = 0; index < length; index++) {
int v = array[index];
sum = (long) method.invoke(object, sum, v);
}
return sum;
} catch (Throwable throwable) {
return handle(Long.class, throwable, "Unable to perform reduceBy");
}
}
