org.dd4t.providers.NoCacheProvider Maven / Gradle / Ivy

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package org.dd4t.providers;

import org.dd4t.caching.Cachable;
import org.dd4t.caching.CacheDependency;
import org.dd4t.caching.CacheElement;
import org.dd4t.caching.CacheInvalidator;
import org.dd4t.caching.impl.CacheElementImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Collection;
import java.util.List;

/**
 * dd4t-parent
 *
 * @deprecated
 * @author R. Kempees
 */
@Deprecated
public class NoCacheProvider implements PayloadCacheProvider, CacheInvalidator, CacheProvider {

    private static final Logger LOG = LoggerFactory.getLogger(NoCacheProvider.class);

    public NoCacheProvider() {
        LOG.info("NoCacheProvider loaded. This means the DD4T Object Cache will not cache anything.");
    }

    @Override
    public void flush() {
        LOG.debug("Not flushing as this is nothing is cached.");
    }

    @Override
    public void invalidate(final String key) {
        LOG.debug("Nothing to invalidate by design.");
    }

    @Override
    public Object loadFromLocalCache(final String key) {
        LOG.debug("Nothing to load by design.");
        return null;
    }

    @Override
    public void storeInCache(final String key, final Cachable ob, final Collection deps) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public void storeInItemCache(final String key, final Object ob, final int dependingPublicationId, final int
            dependingItemId) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public void storeInComponentPresentationCache(final String key, final Object ob, final int
            dependingPublicationId, final int dependingCompId, final int dependingTemplateId) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public void storeInKeywordCache(final String key, final Object ob, final int dependingPublicationId, final int
            dependingItemId) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public void storeInItemCache(final String key, final Object ob, final List dependencies) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public  CacheElement loadPayloadFromLocalCache(final String key) {
        LOG.debug("Nothing to load by design.");
        return new CacheElementImpl(null, true);
    }

    @Override
    public  void storeInItemCache(final String key, final CacheElement cacheElement) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public  void storeInItemCache(final String key, final CacheElement cacheElement, final int
            dependingPublicationId, final int dependingItemId) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public  void storeInItemCache(final String key, final CacheElement cacheElement, final
    List dependencies) {
        LOG.debug("Nothing to store by design.");
    }

    @Override
    public void addDependency(final String cacheKey, final String dependencyKey) {
        LOG.debug("Nothing to add by design.");
    }

    @Override
    public boolean isEnabled() {
        return false;
    }
}