001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
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.pacl.DoPrivileged;
019    
020    import java.util.Set;
021    
022    /**
023     * @author Michael C. Han
024     */
025    @DoPrivileged
026    public class DefaultAuthenticatedUserUUIDStoreImpl
027            implements AuthenticatedUserUUIDStore {
028    
029            @Override
030            public boolean exists(String userUUID) {
031                    return _userUUIDStore.contains(userUUID);
032            }
033    
034            @Override
035            public boolean register(String userUUID) {
036                    return _userUUIDStore.add(userUUID);
037            }
038    
039            @Override
040            public boolean unregister(String userUUID) {
041                    return _userUUIDStore.remove(userUUID);
042            }
043    
044            private Set<String> _userUUIDStore = new ConcurrentHashSet<String>();
045    
046    }