/*
* (C) Copyright 2011 Nuxeo SA (http://nuxeo.com/) and others.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* matic
*/
package org.nuxeo.ecm.webapp.seam;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.StringTokenizer;
import javax.management.JMX;
import javax.management.MBeanServer;
import javax.management.MXBean;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuxeo.runtime.api.Framework;
import org.nuxeo.runtime.reload.ReloadEventNames;
import org.nuxeo.runtime.services.event.Event;
import org.nuxeo.runtime.services.event.EventListener;
/**
* @author matic
* @since 5.5
*/
// TODO: protect methods by checking if seam hot reload is enabled (?)
public class NuxeoSeamFlusher implements EventListener {
protected Log log = LogFactory.getLog(NuxeoSeamFlusher.class);
@Override
public void handleEvent(Event event) {
if (NuxeoSeamWebGate.isInitialized() == false) {
return;
}
String id = event.getId();
if (ReloadEventNames.FLUSH_SEAM_EVENT_ID.equals(id)) {
SeamHotReloadHelper.flush();
try {
invalidateWebSessions();
} catch (IOException e) {
log.error("Cannot invalidate seam web sessions", e);
}
} else if (ReloadEventNames.RELOAD_SEAM_EVENT_ID.equals(id)) {
try {
if (postSeamReload() == false) {
log.error("Cannot post hot-reload seam components on loopback url");
}
} catch (IOException e) {
log.error("Cannot hot-reload seam components", e);
}
}
}
protected boolean postSeamReload() throws IOException {
String loopbackURL = Framework.getProperty("nuxeo.loopback.url");
URL location = new URL(loopbackURL + "/restAPI/seamReload");
HttpURLConnection uc = (HttpURLConnection) location.openConnection();
uc.setRequestMethod("POST");
return uc.getResponseCode() == HttpURLConnection.HTTP_OK;
}
@MXBean
public interface WebSessionFlusher {
String listSessionIds();
void expireSession(String id);
}
protected void invalidateWebSessions() throws IOException {
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
ObjectName name;
try {
name = new ObjectName("Catalina:type=Manager,context=/nuxeo,host=*");
} catch (MalformedObjectNameException e) {
throw new IOException(e);
}
for (ObjectInstance oi : mbs.queryMBeans(name, null)) {
WebSessionFlusher flusher = JMX.newMBeanProxy(mbs, oi.getObjectName(), WebSessionFlusher.class);
StringTokenizer tokenizer = new StringTokenizer(flusher.listSessionIds(), " ");
while (tokenizer.hasMoreTokens()) {
String id = tokenizer.nextToken();
flusher.expireSession(id);
}
}
}
}