RedisCacheManager.setCacheNames in Spring Boot 2.0

Question

How do you customize RedisCacheManager instances in Spring 2.0 specifically to set the cache names and the expirations.

Here's the code I used to have working in 1.5.x, but fails on 2.x

public class RedisCacheManagerCustomizer implements CacheManagerCustomizer<RedisCacheManager> {
...
    @Override
    public void customize(final RedisCacheManager cacheManager) {
        final Map<String, Long> expiresMap = new HashMap<>();

        expiresMap.put(CacheNames.ACCESS_TOKEN_TO_ENTRY, accessTokenExpirationInSeconds);
        expiresMap.put(CacheNames.REFRESH_TOKEN_TO_ENTRY, jwtMaximumLifetimeInSeconds);


        // these two no longer work
        cacheManager.setCacheNames(expiresMap.keySet());
        cacheManager.setExpires(expiresMap);
    }
}

Have a look at [this QA](https://stackoverflow.com/questions/51418161/how-to-create-rediscachemanager-in-spring-data-2-0-x) — Abdelghani Roussi, Feb 02 '19 at 23:26

score 0 · Answer 1 · answered Feb 03 '19 at 03:41

You should be able to do this:

public class RedisCacheManagerCustomizer implements CacheManagerCustomizer<RedisCacheManager> {
    ...
    @Override
    public void customize(final RedisCacheManager cacheManager) {
        setCacheExpiry(cacheManager, CacheNames.ACCESS_TOKEN_TO_ENTRY, accessTokenExpirationInSeconds);
        setCacheExpiry(cacheManager, CacheNames.REFRESH_TOKEN_TO_ENTRY, jwtMaximumLifetimeInSeconds);
    }

    private void setCacheExpiry(RedisCacheManager cacheManager, String name, long expiry) {
        ((RedisCache) Objects.requireNonNull(cacheManager.getCache(name)))
                .getCacheConfiguration().entryTtl(Duration.ofSeconds(expiry));
    }
}

IMHO, the new builder pattern isn't so conducive to the way the customizers work. Looks like that might have been an oversight to the new builder pattern.

RedisCacheManager.setCacheNames in Spring Boot 2.0

1 Answers1