public void modifyBlock(Address address, int setNumber, boolean isWrite) {
Block[] block = setAssociativeArray.get(setNumber);
if (isWrite) block[address.getIndex()].setDirtyBit(1);
block[address.getIndex()].setValidBit(1);
block[address.getIndex()].incrementCounter();
try {
if (isWrite) cacheLogger.writeHit(setNumber, address);
else cacheLogger.readHit(setNumber, address);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private Block getBlockWithMinimumCounter(Address address) {
ArrayList<Block> tempBlockArray = new ArrayList<Block>();
for (int n = 0; n < associativity; n++) {
Block[] blocks = setAssociativeArray.get(n);
if (blocks[address.getIndex()].getHitCounter() == 0)
tempBlockArray.add(blocks[address.getIndex()]);
}
if (tempBlockArray.isEmpty()) {
for (int n = 0; n < associativity; n++) {
Block[] blocks = setAssociativeArray.get(n);
if (blocks[address.getIndex()].getHitCounter() == 1)
tempBlockArray.add(blocks[address.getIndex()]);
}
}
if (tempBlockArray.isEmpty()) {
for (int n = 0; n < associativity; n++) {
Block[] blocks = setAssociativeArray.get(n);
if (blocks[address.getIndex()].getHitCounter() == 2)
tempBlockArray.add(blocks[address.getIndex()]);
}
}
return tempBlockArray.get((new Random()).nextInt(tempBlockArray.size()));
}
public void addAddress(Address address, boolean isWrite) {
int setNumber = searchEmptyBlock(address.getIndex());
Block block = null;
if (runningMode == 0) {
// For Part I
if (setNumber == -1) setNumber = (new Random()).nextInt(associativity);
Block[] blocks = setAssociativeArray.get(setNumber);
block = blocks[address.getIndex()];
} else {
// For Part II
if (setNumber == -1) block = getBlockWithMinimumCounter(address);
else {
Block[] blocks = setAssociativeArray.get(setNumber);
block = blocks[address.getIndex()];
}
}
int tempOldDirtyBit = block.getDirtyBit();
if (isWrite) block.setDirtyBit(1);
else block.setDirtyBit(0);
block.setTag(address.getTag());
block.setValidBit(1);
block.setHitCounter(0);
try {
if (isWrite) cacheLogger.writeMiss(setNumber, address, tempOldDirtyBit);
else cacheLogger.readMiss(setNumber, address, tempOldDirtyBit);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* @param newAddress new Address
* @return new Customer with replaced or added Address
*/
public static Customer addOrReplaceAddress(Customer customer, Address newAddress) {
List<Address> newAddresses =
customer
.getAddresses()
.stream()
.map(
address ->
Objects.equals(newAddress.getIndex(), address.getIndex())
? newAddress
: address)
.collect(Collectors.toList());
if (!newAddresses.contains(newAddress)) {
newAddresses.add(newAddress);
}
return new Customer(
customer.id,
customer.firstname,
customer.lastname,
newAddresses,
customer.contacts,
customer.taxNumber,
customer.taxCountry);
}
