1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 package org.apache.directory.server.ldap; 21 22 23 import java.util.Map; 24 import java.util.concurrent.ConcurrentHashMap; 25 26 import org.apache.mina.core.session.IoSession; 27 28 29 /** 30 * Manages sessions in a thread safe manner for the LdapServer. This class is 31 * used primarily by the {@link LdapProtocolHandler} to manage sessions and is 32 * created by the LdapServer which makes it available to the handler. It's job 33 * is simple and this class was mainly created to be able to expose the session 34 * manager safely to things like the LdapProtocolHandler. 35 * 36 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 37 */ 38 public class LdapSessionManager 39 { 40 /** Concurrent hashMap backing for IoSession to LdapSession mapping */ 41 private Map<IoSession, LdapSession> ldapSessions = new ConcurrentHashMap<IoSession, LdapSession>( 100 ); 42 43 44 /** 45 * Gets the active sessions managed by the LdapServer. 46 */ 47 public LdapSession[] getSessions() 48 { 49 return ldapSessions.values().toArray( new LdapSession[0] ); 50 } 51 52 53 /** 54 * Adds a new LdapSession to the LdapServer. 55 * 56 * @param ldapSession the newly created {@link LdapSession} 57 */ 58 public void addLdapSession( LdapSession ldapSession ) 59 { 60 synchronized ( ldapSessions ) 61 { 62 ldapSessions.put( ldapSession.getIoSession(), ldapSession ); 63 } 64 } 65 66 67 /** 68 * Removes an LdapSession managed by the {@link LdapServer}. This method 69 * has no side effects: meaning it does not perform cleanup tasks after 70 * removing the session. This task is handled by the callers. 71 * 72 * @param session the MINA session of the LdapSession to be removed 73 * @return the LdapSession to remove 74 */ 75 public LdapSession removeLdapSession( IoSession session ) 76 { 77 synchronized ( ldapSessions ) 78 { 79 return ldapSessions.remove( session ); 80 } 81 } 82 83 84 /** 85 * Gets the LdapSession associated with the MINA session. 86 * 87 * @param session the MINA session of the LdapSession to retrieve 88 * @return the LdapSession associated with the MINA {@link IoSession} 89 */ 90 public LdapSession getLdapSession( IoSession session ) 91 { 92 synchronized ( ldapSessions ) 93 { 94 return ldapSessions.get( session ); 95 } 96 } 97 }