public CloudOffer getOfferImmediateLowerAvailabilityOfSameProviderSimilarPerformance(
String modulename, String cloudOffer) {
List<CloudOffer> offers = getCloudOffersForModule(modulename);
CloudOffer currentOffer = getCloudCharacteristicsFromList(offers, cloudOffer);
CloudOffer potentialWorse = null;
for (CloudOffer offer : offers) { // assumed that are ordered in reverse
// order
if (offer.getAvailability() < currentOffer.getAvailability()) {
if (!(offer.getProviderName().equals(currentOffer.getProviderName()))) {
if (potentialWorse == null) { // there was not found any yet
potentialWorse = offer;
} else { // An alternative offer was already found, now check by
// its performance (the less difference)
if (Math.abs(currentOffer.getPerformance() - offer.getPerformance())
< (Math.abs(currentOffer.getPerformance() - potentialWorse.getPerformance()))) {
// Closest difference
potentialWorse = offer;
}
}
}
}
}
return potentialWorse;
}
public boolean existsAlternativeCloudProviderForModuleWithLowerAvailability(
String modulename, String cloudOffer) {
List<CloudOffer> offers = getCloudOffersForModule(modulename);
CloudOffer currentOffer = getCloudCharacteristicsFromList(offers, cloudOffer);
for (CloudOffer offer : offers) {
// series of conditions in AND that I prefer to nest for visibility
if (offer.getAvailability() < currentOffer.getAvailability()) {
if (!(offer.getProviderName().equals(currentOffer.getProviderName()))) {
return true;
}
}
}
return false;
}
