001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.security.auth;
016    
017    import com.liferay.portal.kernel.concurrent.ConcurrentHashSet;
018    import com.liferay.portal.kernel.security.auth.AuthenticatedUserUUIDStore;
019    import com.liferay.portal.kernel.security.pacl.DoPrivileged;
020    
021    import java.util.Set;
022    
023    /**
024     * @author Michael C. Han
025     */
026    @DoPrivileged
027    public class DefaultAuthenticatedUserUUIDStoreImpl
028            implements AuthenticatedUserUUIDStore {
029    
030            @Override
031            public boolean exists(String userUUID) {
032                    return _userUUIDStore.contains(userUUID);
033            }
034    
035            @Override
036            public boolean register(String userUUID) {
037                    return _userUUIDStore.add(userUUID);
038            }
039    
040            @Override
041            public boolean unregister(String userUUID) {
042                    return _userUUIDStore.remove(userUUID);
043            }
044    
045            private final Set<String> _userUUIDStore = new ConcurrentHashSet<>();
046    
047    }