public float[] getItemVector(String item) {
Lock lock = yLock.readLock();
lock.lock();
try {
return Y.get(item);
} finally {
lock.unlock();
}
}
public float[] getUserVector(String user) {
Lock lock = xLock.readLock();
lock.lock();
try {
return X.get(user);
} finally {
lock.unlock();
}
}
