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 */
019package org.apache.shiro.session.mgt.eis;
020
021import org.apache.shiro.session.Session;
022
023import java.io.Serializable;
024import 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 */
031public 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}