1 /* 2 * Copyright (c) 2002-2014, Mairie de Paris 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice 10 * and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice 13 * and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its 17 * contributors may be used to endorse or promote products derived from 18 * this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 * License 1.0 33 */ 34 package fr.paris.lutece.portal.service.sessionlistener; 35 36 import fr.paris.lutece.portal.service.util.AppLogService; 37 38 import java.util.ArrayList; 39 import java.util.List; 40 41 import javax.servlet.http.HttpSessionListener; 42 43 44 /** 45 * Listener service : provides registered listener access. 46 * 47 */ 48 public final class HttpSessionListenerService 49 { 50 private static final List<HttpSessionListener> LIST_LISTENERS = new ArrayList<HttpSessionListener>( ); 51 52 /** 53 * Private constructor 54 */ 55 private HttpSessionListenerService( ) 56 { 57 // nothing 58 } 59 60 /** 61 * Registers a listener. 62 * 63 * @param entry the entry 64 */ 65 public static void registerListener( HttpSessionListenerEntry entry ) 66 { 67 String strListenerClass = entry.getListenerClass( ); 68 69 try 70 { 71 HttpSessionListener listener = (HttpSessionListener) Class.forName( strListenerClass ).newInstance( ); 72 LIST_LISTENERS.add( listener ); 73 AppLogService.info( "New Listener registered : " + strListenerClass ); 74 } 75 catch ( InstantiationException e ) 76 { 77 AppLogService.error( "Error registering the listener " + strListenerClass + " : " + e.getMessage( ), e ); 78 } 79 catch ( IllegalAccessException e ) 80 { 81 AppLogService.error( "Error registering the listener " + strListenerClass + " : " + e.getMessage( ), e ); 82 } 83 catch ( ClassNotFoundException e ) 84 { 85 AppLogService.error( "Error registering the listener " + strListenerClass + " : " + e.getMessage( ), e ); 86 } 87 } 88 89 /** 90 * Get all registered listeners 91 * @return all registered listeners 92 */ 93 public static List<HttpSessionListener> getListeners( ) 94 { 95 return LIST_LISTENERS; 96 } 97 }