public static byte[] retrieve(String key) {
Pointer ptr = get(key);
if (ptr == null) return null;
if (ptr.expired() || ptr.free) {
map.remove(key);
if (!ptr.free) {
MemoryManager.free(ptr);
}
return null;
} else {
return MemoryManager.retrieve(ptr);
}
}
public static void init(
int numberOfBuffers, int size, int initialCapacity, int concurrencyLevel) {
map =
new MapMaker()
.concurrencyLevel(concurrencyLevel)
.initialCapacity(initialCapacity)
.makeMap();
logger.info("*** initializing *******************************\r\n" + Format.logo());
logger.info("************************************************");
MemoryManager.init(numberOfBuffers, size);
logger.info("initialized");
logger.info(
Format.it("number of buffer(s): \t%1d with %2s each", numberOfBuffers, Ram.inMb(size)));
logger.info(Format.it("initial capacity: \t%1d", initialCapacity));
logger.info(Format.it("concurrency level: \t%1d", concurrencyLevel));
}
public static void collectLFU() {
MemoryManager.collectLFU();
}
public static void collectExpired() {
MemoryManager.collectExpired();
}
public static void free(String key) {
Pointer p = map.remove(key);
if (p != null) {
MemoryManager.free(p);
}
}
public static Pointer update(String key, byte[] payload) {
Pointer p = map.get(key);
p = MemoryManager.update(p, payload);
return p;
}
public static Pointer put(String key, byte[] payload, int expiresIn) {
return map.put(key, MemoryManager.store(payload, expiresIn));
}
public static void clear() {
map.clear();
MemoryManager.clear();
logger.info("Cache cleared");
}