001/* 002 * (C) Copyright 2011 Nuxeo SA (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * matic 016 */ 017package org.nuxeo.ecm.webapp.seam; 018 019import java.io.IOException; 020import java.lang.management.ManagementFactory; 021import java.net.HttpURLConnection; 022import java.net.URL; 023import java.util.StringTokenizer; 024 025import javax.management.JMX; 026import javax.management.MBeanServer; 027import javax.management.MXBean; 028import javax.management.MalformedObjectNameException; 029import javax.management.ObjectInstance; 030import javax.management.ObjectName; 031 032import org.apache.commons.logging.Log; 033import org.apache.commons.logging.LogFactory; 034import org.nuxeo.runtime.api.Framework; 035import org.nuxeo.runtime.reload.ReloadEventNames; 036import org.nuxeo.runtime.services.event.Event; 037import org.nuxeo.runtime.services.event.EventListener; 038 039/** 040 * @author matic 041 * @since 5.5 042 */ 043// TODO: protect methods by checking if seam hot reload is enabled (?) 044public class NuxeoSeamFlusher implements EventListener { 045 046 protected Log log = LogFactory.getLog(NuxeoSeamFlusher.class); 047 048 @Override 049 public boolean aboutToHandleEvent(Event event) { 050 return true; 051 } 052 053 @Override 054 public void handleEvent(Event event) { 055 if (NuxeoSeamWebGate.isInitialized() == false) { 056 return; 057 } 058 String id = event.getId(); 059 if (ReloadEventNames.FLUSH_SEAM_EVENT_ID.equals(id)) { 060 SeamHotReloadHelper.flush(); 061 try { 062 invalidateWebSessions(); 063 } catch (IOException e) { 064 log.error("Cannot invalidate seam web sessions", e); 065 } 066 } else if (ReloadEventNames.RELOAD_SEAM_EVENT_ID.equals(id)) { 067 try { 068 if (postSeamReload() == false) { 069 log.error("Cannot post hot-reload seam components on loopback url"); 070 } 071 } catch (IOException e) { 072 log.error("Cannot hot-reload seam components", e); 073 } 074 } 075 } 076 077 protected boolean postSeamReload() throws IOException { 078 String loopbackURL = Framework.getProperty("nuxeo.loopback.url"); 079 URL location = new URL(loopbackURL + "/restAPI/seamReload"); 080 HttpURLConnection uc = (HttpURLConnection) location.openConnection(); 081 uc.setRequestMethod("POST"); 082 return uc.getResponseCode() == HttpURLConnection.HTTP_OK; 083 } 084 085 @MXBean 086 public interface WebSessionFlusher { 087 088 String listSessionIds(); 089 090 void expireSession(String id); 091 092 } 093 094 protected void invalidateWebSessions() throws IOException { 095 MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); 096 ObjectName name; 097 try { 098 name = new ObjectName("Catalina:type=Manager,context=/nuxeo,host=*"); 099 } catch (MalformedObjectNameException e) { 100 throw new IOException(e); 101 } 102 for (ObjectInstance oi : mbs.queryMBeans(name, null)) { 103 WebSessionFlusher flusher = JMX.newMBeanProxy(mbs, oi.getObjectName(), WebSessionFlusher.class); 104 StringTokenizer tokenizer = new StringTokenizer(flusher.listSessionIds(), " "); 105 while (tokenizer.hasMoreTokens()) { 106 String id = tokenizer.nextToken(); 107 flusher.expireSession(id); 108 } 109 } 110 } 111 112}