@Override
public Object get(Object key) {
// Check for null as Cache should not store null values / keys
if (key == null) {
throw new NullPointerException("key is null");
}
CacheValue cacheValue = map.get(key);
// Check for null
if (cacheValue == null) {
return null;
}
// Check if to be autoexpired, autoExpireTimeInMs = 0 means expire immediately / no caching
// Note: This point will never be reached if the value was put in cache when autoExpireTimeInMs
// was 0
if (this.autoExpireTimeInMs >= 0) {
// Check if expired
long now = new Date().getTime();
if (cacheValue.getLastUpateTime() + this.autoExpireTimeInMs < now) {
// Expired, remove
remove(key);
return null;
}
}
// Not expired, return the value
return cacheValue.getValue();
}
@Override
public long getLastUpateTime(Object key) {
// Check for null as Cache should not store null values / keys
if (key == null) {
throw new NullPointerException("key is null");
}
CacheValue value = map.get(key);
if (value != null) {
return value.getLastUpateTime();
} else {
return -1;
}
}