@SuppressWarnings({"unchecked"})
protected long create(float o) {
long start = System.nanoTime();
try {
int retry = 0;
// retry on exception loop
while (true) {
try {
long t = calculatable.calculate(owner, o);
// successful invocation => just store the value and return
save(o, t);
return t;
} catch (Exception e) {
// We catch Exception here, but not Error and not Throwable.
// this is because in case of Error we are likely have no chance even to save
// an ExceptionRecord to a storage, so don't even try to do so.
// For example in case of OOM (out of memory) it may be impossible to create
// even a single new object.
CacheExceptionHandler exceptionHandler = getDescriptor().getExceptionHandler();
switch (exceptionHandler.getAction(retry, e)) {
case RETRY:
retry++;
continue;
case REMEMBER_AND_RETHROW:
save(
o,
new ExceptionRecord(
e, exceptionHandler.getRememberExceptionExpirationTimestamp(e)));
// fall through
case RETHROW:
default:
// this method always throws an exception
ExceptionHelper.throwCheckedExceptionHack(e);
break;
}
}
}
} finally {
// record calculation time even if calculation fails
long end = System.nanoTime();
miss(end - start);
}
}