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.common.IoSession; 27 28 29 /** 30 * Manages sessions in a thread safe manner for the LdapService. This class is 31 * used primarily by the {@link LdapProtocolHandler} to manage sessions and is 32 * created by the LdapService 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 * @version $Rev$, $Date$ 38 */ 39 public class LdapSessionManager 40 { 41 /** Concurrent hashMap backing for IoSession to LdapSession mapping */ 42 private Map<IoSession, LdapSession> ldapSessions = new ConcurrentHashMap<IoSession, LdapSession>( 100 ); 43 44 45 /** 46 * Gets the active sessions managed by the LdapService. 47 */ 48 public LdapSession[] getSessions() 49 { 50 return ldapSessions.values().toArray( new LdapSession[0] ); 51 } 52 53 54 /** 55 * Adds a new LdapSession to the LdapService. 56 * 57 * @param ldapSession the newly created {@link LdapSession} 58 */ 59 public void addLdapSession( LdapSession ldapSession ) 60 { 61 synchronized ( ldapSessions ) 62 { 63 ldapSessions.put( ldapSession.getIoSession(), ldapSession ); 64 } 65 } 66 67 68 /** 69 * Removes an LdapSession managed by the {@link LdapService}. This method 70 * has no side effects: meaning it does not perform cleanup tasks after 71 * removing the session. This task is handled by the callers. 72 * 73 * @param session the MINA session of the LdapSession to be removed 74 * @return the LdapSession to remove 75 */ 76 public LdapSession removeLdapSession( IoSession session ) 77 { 78 synchronized ( ldapSessions ) 79 { 80 return ldapSessions.remove( session ); 81 } 82 } 83 84 85 /** 86 * Gets the LdapSession associated with the MINA session. 87 * 88 * @param session the MINA session of the LdapSession to retrieve 89 * @return the LdapSession associated with the MINA {@link IoSession} 90 */ 91 public LdapSession getLdapSession( IoSession session ) 92 { 93 synchronized ( ldapSessions ) 94 { 95 return ldapSessions.get( session ); 96 } 97 } 98 }