apollo-configservice/src/main/java/com/ctrip/framework/apollo/configservice/service/AccessKeyServiceWithCache.java/AccessKeyServiceWithCache/populateDataBaseInterval
class AccessKeyServiceWithCache:  private void populateDataBaseInterval() {
    scanInterval = bizConfig.accessKeyCacheScanInterval();
    scanIntervalTimeUnit = bizConfig.accessKeyCacheScanIntervalTimeUnit();
    rebuildInterval = bizConfig.accessKeyCacheRebuildInterval();
    rebuildIntervalTimeUnit = bizConfig.accessKeyCacheRebuildIntervalTimeUnit();
  }