83 lines
2.5 KiB
Java
83 lines
2.5 KiB
Java
package org.gcube.gcat.persistence.ckan;
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import java.util.concurrent.TimeUnit;
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import javax.cache.Cache;
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import javax.cache.CacheManager;
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import javax.cache.Caching;
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import javax.cache.configuration.MutableConfiguration;
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import javax.cache.expiry.CreatedExpiryPolicy;
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import javax.cache.expiry.Duration;
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import javax.cache.spi.CachingProvider;
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import org.gcube.common.authorization.utils.manager.SecretManager;
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import org.gcube.common.authorization.utils.manager.SecretManagerProvider;
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/**
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* @author Luca Frosini (ISTI - CNR)
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*/
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public abstract class CKANUserCache {
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private static final CacheManager cacheManager;
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private static final MutableConfiguration<String,CKANUser> userCacheConfiguration;
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static {
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CachingProvider provider = Caching.getCachingProvider();
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cacheManager = provider.getCacheManager();
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userCacheConfiguration = new MutableConfiguration<String,CKANUser>().setTypes(String.class, CKANUser.class)
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.setStoreByValue(false)
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.setExpiryPolicyFactory(CreatedExpiryPolicy.factoryOf(new Duration(TimeUnit.MINUTES, 15)));
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}
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private CKANUserCache() {
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}
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public synchronized static CKANUser getCurrrentCKANUser() {
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SecretManager secretManager = SecretManagerProvider.instance.get();
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String context = secretManager.getContext();
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Cache<String,CKANUser> userCache = cacheManager.getCache(context);
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if(userCache == null) {
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userCache = cacheManager.createCache(context, userCacheConfiguration);
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}
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String gcubeUsername = secretManager.getUser().getUsername();
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CKANUser ckanUser = userCache.get(gcubeUsername);
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if(ckanUser == null) {
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ckanUser = new CKANUser();
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ckanUser.retrieve();
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userCache.put(gcubeUsername, ckanUser);
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}
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return ckanUser;
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}
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public synchronized static void removeUserFromCache() {
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SecretManager secretManager = SecretManagerProvider.instance.get();
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String gcubeUsername = secretManager.getUser().getUsername();
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removeUserFromCache(gcubeUsername);
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}
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public synchronized static void removeUserFromCache(String gcubeUsername) {
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SecretManager secretManager = SecretManagerProvider.instance.get();
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String context = secretManager.getContext();
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Cache<String,CKANUser> userCache = cacheManager.getCache(context);
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if(userCache != null) {
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userCache.remove(gcubeUsername);
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}
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}
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public synchronized static void emptyUsersCache() {
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SecretManager secretManager = SecretManagerProvider.instance.get();
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String context = secretManager.getContext();
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cacheManager.destroyCache(context);
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}
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@Override
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protected void finalize() throws Throwable {
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super.finalize();
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cacheManager.close();
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}
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}
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