@Component
public class BondDao {
    private static final String CACHE_BOND = "bond";

    private final BondRepository bondRepository;
    private final CaffeineCache cache;

    public BondDao(BondRepository bondRepository, CacheManager cacheManager) {
        this.bondRepository = bondRepository;
        this.cache = (CaffeineCache) cacheManager.getCache(CACHE_BOND);
    }

    @PostConstruct
    private void warmUpCache() {
        bondRepository.findAll()
                .forEach(entity -> cache.putIfAbsent(entity.getId(), entity));
    }

    public List<BondEntity> findAll() {
        return StreamEx.ofValues(cache.getNativeCache().asMap())
                .map(o -> (BondEntity) o)
                .collect(Collectors.toList());
    }

    @Cacheable(cacheNames = "bond", key = "#id", unless = "#result == null")
    public BondEntity findById(Long id) {
        return bondRepository.findById(id).orElse(null);
    }
}