Consider using registerCustomCache from Spring v.5.2.8

[stepio]

Try reducing amount of custom code by using newly introduced method registerCustomCache.

Links:

• spring-projects/spring-framework@8697026
• stackoverflow.com/questions/62297329

[vladimirfx]

Simple customizer:

  CacheManagerCustomizer<CaffeineCacheManager> { cacheManager ->
      for (spec in Binder.get(env).bindOrCreate("caffeine.specs", HashMap::class.java)) {
          cacheManager.registerCustomCache(spec.key.toString(),
              Caffeine.from(spec.value.toString()).build())
      }
  }

Config with proper default (which is not posible with coffee-boots):

spring.cache.type=caffeine
# default (optional)
spring.cache.caffeine.spec=maximumSize=250,expireAfterWrite=15m
# custom configs 0..N
caffeine.specs.places=maximumSize=1000,expireAfterWrite=1h

No deps, no (additional) autoconfiguration magic.

@stepio what do you think - may it be proposed as little PR to Spring Boot?