001/* 002 * Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the Eclipse Public License v1.0 006 * which accompanies this distribution, and is available at 007 * http://www.eclipse.org/legal/epl-v10.html 008 * 009 * Contributors: 010 * bstefanescu 011 */ 012package org.nuxeo.ecm.webengine.jaxrs.servlet.config; 013 014import java.util.ArrayList; 015 016import javax.servlet.ServletConfig; 017import javax.servlet.ServletContextEvent; 018import javax.servlet.ServletContextListener; 019 020import org.nuxeo.common.xmap.annotation.XNodeList; 021import org.nuxeo.common.xmap.annotation.XObject; 022import org.nuxeo.ecm.webengine.jaxrs.BundleNotFoundException; 023 024/** 025 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 026 */ 027@XObject("listeners") 028public class ListenerSetDescriptor { 029 030 @XNodeList(value = "listener", type = ArrayList.class, componentType = ListenerDescriptor.class, trim = true, nullByDefault = false) 031 protected ArrayList<ListenerDescriptor> listenerDescriptors; 032 033 private ServletContextListener[] listeners; 034 035 private ServletContextEvent event; 036 037 public synchronized boolean isInitialized() { 038 return event != null; 039 } 040 041 public synchronized void init(ServletConfig config) throws ReflectiveOperationException, BundleNotFoundException { 042 if (event == null && !listenerDescriptors.isEmpty()) { 043 event = new ServletContextEvent(config.getServletContext()); 044 listeners = new ServletContextListener[listenerDescriptors.size()]; 045 for (int i = 0; i < listeners.length; i++) { 046 ListenerDescriptor ld = listenerDescriptors.get(i); 047 listeners[i] = ld.getListener(); 048 listeners[i].contextInitialized(event); 049 } 050 } 051 } 052 053 public synchronized boolean destroy() { 054 if (event != null) { 055 if (listeners != null) { 056 try { 057 for (ServletContextListener listener : listeners) { 058 listener.contextDestroyed(event); 059 } 060 } finally { 061 event = null; 062 listeners = null; 063 } 064 return true; 065 } 066 } 067 return false; 068 } 069 070 @Override 071 public String toString() { 072 return listenerDescriptors.toString(); 073 } 074 075}