How to use

isEnabled

method

in

org.dd4t.caching.providers.EHCacheProvider

@Override
public void flush() {
  if (!isEnabled()) {
    return;
  }
  if (cache == null) {
    LOG.error("Cache configuration is invalid! NOT Caching. Check EH Cache configuration.");
    return;
  }
  LOG.info("Expire all items in cache");
  for (Object key : cache.getKeys()) {
    setExpired(cache.get(key), 0);
  }
  for (Object key : dependencyCache.getKeys()) {
    setExpired(dependencyCache.get(key), ADJUST_TTL);
  }
}

@Override
public void invalidate(final String key) {
  if (!isEnabled()) {
    return;
  }
  if (dependencyCache == null) {
    LOG.error("Cache configuration is invalid! NOT Caching. Check EH Cache configuration.");
    return;
  }
  String dependencyKey = getKey(key);
  Element dependencyElement = dependencyCache.get(dependencyKey);
  if (dependencyElement != null) {
    LOG.info("Expire key: {} from dependency cache", dependencyKey);
    setExpired(dependencyElement, ADJUST_TTL);
    ConcurrentSkipListSet<String> cacheSet = ((CacheElement<ConcurrentSkipListSet<String>>) dependencyElement
        .getObjectValue()).getPayload();
    if (cacheSet != null) {
      for (String cacheKey : cacheSet) {
        LOG.debug("Expire cache key: {} from cache", cacheKey);
        Element cacheElement = cache.get(cacheKey);
        setExpired(cacheElement, 0);
      }
    }
  } else {
    LOG.info("Attempting to expire key {} but not found in dependency cache", dependencyKey);
  }
}

public void setExpired(Element element, int adjustTTL) {
  if (!isEnabled()) {
    return;
  }
  if (element == null) {
    return;
  }
  if (element.getObjectValue() instanceof CacheElement) {
    CacheElement cacheElement = (CacheElement) element.getObjectValue();
    if (!cacheElement.isExpired()) {
      cacheElement.setExpired(true);
      expireElement(element, adjustTTL);
    }
  } else {
    expireElement(element, adjustTTL);
  }
}

@Override
protected <T> void storeElement(final String key, CacheElement<T> cacheElement) {
  if (!isEnabled()) {
    return;
  }
  final Element element = new Element(key, cacheElement);
  element.setTimeToLive(cacheTTL);
  if (cache.isKeyInCache(key)) {
    cache.replace(element);
  } else {
    cache.put(element);
  }
}

@Override
public void addDependency(String cacheKey, String dependencyKey) {
  if (!isEnabled()) {
    return;

@Override
public <T> void storeInItemCache(String key, CacheElement<T> cacheElement, List<CacheDependency> dependencies) {
  if (!isEnabled()) {
    return;
  }
  if (!cacheExists()) {
    LOG.error("Cache configuration is invalid! NOT Caching. Check EH Cache configuration.");
    return;
  }
  // detect undeclared nulls, complain, and set to null
  if (!cacheElement.isNull() && cacheElement.getPayload() == null) {
    Exception exToLogToHaveStacktraceWhoCausedIt = new Exception();
    LOG.error("Detected undeclared null payload on element with key " + key + " at insert time!",
        exToLogToHaveStacktraceWhoCausedIt);
    cacheElement.setNull(true);
  }
  cacheElement.setExpired(false);
  Element element = cache.get(key);
  if (element == null) {
    element = new Element(key, cacheElement);
  }
  cache.put(element);
  element.setTimeToLive(cacheDependencyTTL);
  for (CacheDependency dep : dependencies) {
    String dependentKey = getKey(dep.getPublicationId(), dep.getItemId());
    cacheElement.setDependentKey(dependentKey);
    addDependency(key, dependentKey);
    updateTTL(dependencyCache.get(dependentKey));
  }
}

public <T> CacheElement<T> loadPayloadFromLocalCache(String key) {
  if (!isEnabled()) {
    LOG.debug("Cache is disabled. Returning a null Cache Element.");
    return new CacheElementImpl<>(null, true);