001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    package org.apache.shiro.session.mgt.eis;
020    
021    import org.apache.shiro.session.Session;
022    
023    import java.io.Serializable;
024    import java.util.UUID;
025    
026    /**
027     * {@link SessionIdGenerator} that generates String values of JDK {@link java.util.UUID}'s as the session IDs.
028     *
029     * @since 1.0
030     */
031    public class JavaUuidSessionIdGenerator implements SessionIdGenerator {
032    
033        /**
034         * Ignores the method argument and simply returns
035         * {@code UUID}.{@link java.util.UUID#randomUUID() randomUUID()}.{@code toString()}.
036         *
037         * @param session the {@link Session} instance to which the ID will be applied.
038         * @return the String value of the JDK's next {@link UUID#randomUUID() randomUUID()}.
039         */
040        public Serializable generateId(Session session) {
041            return UUID.randomUUID().toString();
042        }
043    }