public void updateConfiguration(
RetentionConfiguration newRetentionConfig, CachingConfiguration newCachingConfig)
throws InvalidConfigurationException {
for (Iterator<String> nameIter = caches.keySet().iterator(); nameIter.hasNext(); ) {
String name = nameIter.next();
if (!newCachingConfig.findLevelForLevelName(name).isPresent()) {
caches.get(name).shutdown();
nameIter.remove();
if (evictionStrategyMap.containsKey(name)) {
evictionStrategyMap.remove(name);
}
log.debug("Dropped cache for {}", name);
}
}
checkAllLevelCaches();
updateEvictionStrategies();
log.debug("finished all updateConfiguration Acitivies!");
}
private void updateCachingLevel(RetentionLevel level) {
Optional<CachingLevel> cachingLevel =
environment.cachingConfiguration().findLevelForLevelName(level.name());
Optional<CachingLevel> oldCachingLevel = cachingConfig.findLevelForLevelName(level.name());
if (!cachingLevel.isPresent()) {
log.warn("RetentionLevel with unconfigured Cache " + level.name());
} else if (!caches.containsKey(level.name()) || !oldCachingLevel.isPresent()) {
caches.put(level.name(), new LevelCache(environment, cachingLevel.get()));
if (levelIsAccessLevel(level) && !evictionStrategyMap.containsKey(level.name())) {
evictionStrategyMap.put(
level.name(),
new NaiveLRUStrategy(
level.name(),
metricStorage,
findAllFollowingLevelCaches(level),
cachingLevel.get().visibleCacheSize()));
}
log.debug("created new Cache for " + level.name());
} else if (oldCachingLevel.get().equals(cachingLevel.get())) {
log.debug("no changes in cachingLevel " + level.name());
} else if (oldCachingLevel.get().cacheLineWidth() != cachingLevel.get().cacheLineWidth()) {
caches.remove(oldCachingLevel.get().name());
caches.put(level.name(), new LevelCache(environment, cachingLevel.get()));
log.debug("dropped and created new cache for " + level.name());
} else {
log.debug("resizing level cache " + level.name());
if (levelIsAccessLevel(level)) {
caches
.get(oldCachingLevel.get().name())
.resizeAccessLevel(cachingLevel.get(), evictionStrategyMap.get(level.name()));
evictionStrategyMap.get(level.name()).resize(cachingLevel.get().visibleCacheSize());
} else {
caches.get(oldCachingLevel.get().name()).resize(cachingLevel.get());
}
}
}
