///**
// *
// */
//package org.gcube.datatransfer.resolver.caches;
//
//import java.util.concurrent.TimeUnit;
//
//import org.gcube.common.scope.api.ScopeProvider;
//import org.gcube.datatransfer.resolver.catalogue.resource.ApplicationProfileReaderForCatalogueResolver;
//import org.gcube.datatransfer.resolver.listeners.UriResolverStartupListener;
//import org.slf4j.Logger;
//import org.slf4j.LoggerFactory;
//
//import com.google.common.cache.CacheBuilder;
//import com.google.common.cache.CacheLoader;
//import com.google.common.cache.LoadingCache;
//import com.google.common.cache.RemovalListener;
//import com.google.common.cache.RemovalNotification;
//
//
///**
// * The Class LoadingCatalogueApplicationProfilesCache.
// *
// * @author Francesco Mangiacrapa at ISTI-CNR (francesco.mangiacrapa@isti.cnr.it)
// * Nov 5, 2018
// */
//public class LoadingCatalogueApplicationProfilesCache {
//
//	private static Logger logger = LoggerFactory.getLogger(LoadingCatalogueApplicationProfilesCache.class);
//	private static LoadingCache<String, String> catalogueApplicationProfiles;
//
//	static{
//
//		CacheLoader<String, String> loader = new CacheLoader<String, String>(){
//
//			@Override
//			public String load(String vreName)
//				throws Exception {
//
//				logger.info("Loading the cache for vreName: "+vreName);
//				String fullScope = loadFullScopeByApplicationProfile(vreName);
//				logger.info("Returning fullScope: "+fullScope+ " for the VRE name: "+vreName);
//				return fullScope;
//			}
//
//		};
//
//		RemovalListener<String, String> removalListener = new RemovalListener<String, String>() {
//
//			@Override
//			public void onRemoval(RemovalNotification<String, String> arg0) {
//
//				logger.info("cache expired");
//				//prePopulateCache();
//
//			}
//		};
//
//		catalogueApplicationProfiles = CacheBuilder.newBuilder().maximumSize(100).expireAfterWrite(
//			1, TimeUnit.DAYS).removalListener(removalListener).
//			build(loader);
//
//
//		//Populating the cache at init stage
//		populateTheCache();
//		logger.info("Pre-Loaded CatalogueApplicationProfiles cache with: "+catalogueApplicationProfiles.asMap().size()+" item/s");
//	}
//
//
//	/**
//	 * Populate the cache.
//	 */
//	private static void populateTheCache(){
//		try{
//			//POPULATE THE CACHE READING THE RESOURCE "CATALOGUE-RESOLVER"
//			logger.info("Trying to pre-populate catalogue resolver cache");
//		    ScopeProvider.instance.set(UriResolverStartupListener.getRootContextScope());
//			ApplicationProfileReaderForCatalogueResolver appPrCatResolver = new ApplicationProfileReaderForCatalogueResolver(UriResolverStartupListener.getRootContextScope(), true);
//			catalogueApplicationProfiles.asMap().putAll(appPrCatResolver.getHashVreNameScope());
//			logger.info("Cache populated with: "+catalogueApplicationProfiles.asMap().toString());
//			//logger.info("Pre-Loaded CatalogueApplicationProfiles cache is: "+catalogueApplicationProfiles.asMap().toString());
//		}catch(Exception e){
//
//		}finally{
//
//		}
//	}
//
//	/**
//	 * Gets the cache.
//	 *
//	 * @return the cache
//	 */
//	public static LoadingCache<String, String> getCache(){
//		return catalogueApplicationProfiles;
//	}
//
//
//
//	/**
//	 * Load application profiles.
//	 *
//	 * @param vreName the vre name
//	 * @return the string
//	 */
//	public static String loadFullScopeByApplicationProfile(String vreName){
//
//		//THIS CHECK SHOULD BE NOT NEEDED
//		String fullScope = catalogueApplicationProfiles.getIfPresent(vreName);
//
//		if(fullScope==null){
//			populateTheCache();
//			fullScope = catalogueApplicationProfiles.getIfPresent(vreName);
//		}
//
//		return fullScope;
//	}
//
//}