Java tutorial
/* * (C) Copyright 2006-2011 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: * bstefanescu, jcarsique */ package org.nuxeo.runtime.tomcat; import java.io.File; import java.io.IOException; import java.lang.management.ManagementFactory; import javax.management.JMException; import javax.management.MBeanServer; import javax.management.ObjectName; import org.apache.catalina.Container; import org.apache.catalina.Lifecycle; import org.apache.catalina.LifecycleEvent; import org.apache.catalina.LifecycleListener; import org.apache.catalina.Loader; import org.apache.catalina.core.ContainerBase; import org.apache.catalina.util.ServerInfo; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.nuxeo.osgi.application.FrameworkBootstrap; import org.nuxeo.osgi.application.MutableClassLoader; import org.nuxeo.runtime.tomcat.dev.DevFrameworkBootstrap; import org.nuxeo.runtime.tomcat.dev.NuxeoDevWebappClassLoader; /** * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> */ public class NuxeoLauncher implements LifecycleListener { public static final String DEV_BUNDLES_NAME = "org.nuxeo:type=sdk,name=dev-bundles"; public static final String WEB_RESOURCES_NAME = "org.nuxeo:type=sdk,name=web-resources"; static final Log log = LogFactory.getLog(NuxeoLauncher.class); protected boolean shared; // TODO protected String home = "nxserver"; protected boolean automaticReload = true; protected FrameworkBootstrap bootstrap; public void setShared(boolean shared) { this.shared = shared; } public boolean isShared() { return shared; } public void setHome(String home) { this.home = home; } public String getHome() { return home; } public void setAutomaticReload(boolean value) { automaticReload = value; } public boolean getAutomaticReload() { return automaticReload; } @Override public void lifecycleEvent(LifecycleEvent event) { Lifecycle lf = event.getLifecycle(); if (lf instanceof ContainerBase) { Loader loader = ((Container) lf).getLoader(); if (loader instanceof NuxeoWebappLoader) { handleEvent((NuxeoWebappLoader) loader, event); } } } protected void handleEvent(NuxeoWebappLoader loader, LifecycleEvent event) { String type = event.getType(); try { MutableClassLoader cl = (MutableClassLoader) loader.getClassLoader(); boolean devMode = cl instanceof NuxeoDevWebappClassLoader; if (type == Lifecycle.CONFIGURE_START_EVENT) { File homeDir = resolveHomeDirectory(loader); if (devMode) { bootstrap = new DevFrameworkBootstrap(cl, homeDir); MBeanServer server = ManagementFactory.getPlatformMBeanServer(); server.registerMBean(bootstrap, new ObjectName(DEV_BUNDLES_NAME)); server.registerMBean(cl, new ObjectName(WEB_RESOURCES_NAME)); ((NuxeoDevWebappClassLoader) cl).setBootstrap((DevFrameworkBootstrap) bootstrap); } else { bootstrap = new FrameworkBootstrap(cl, homeDir); } bootstrap.setHostName("Tomcat"); bootstrap.setHostVersion(ServerInfo.getServerNumber()); bootstrap.initialize(); } else if (type == Lifecycle.START_EVENT) { bootstrap.start(); } else if (type == Lifecycle.STOP_EVENT) { bootstrap.stop(); if (devMode) { MBeanServer server = ManagementFactory.getPlatformMBeanServer(); server.unregisterMBean(new ObjectName(DEV_BUNDLES_NAME)); server.unregisterMBean(new ObjectName(WEB_RESOURCES_NAME)); } } } catch (IOException | JMException | ReflectiveOperationException e) { log.error("Failed to handle event: " + type, e); } } protected File resolveHomeDirectory(NuxeoWebappLoader loader) { String path = null; if (home.startsWith("/") || home.startsWith("\\") || home.contains(":/") || home.contains(":\\")) { // absolute path = home; } else if (home.startsWith("${catalina.base}")) { path = getTomcatHome() + home.substring("${catalina.base}".length()); } else { try { File baseDir = loader.getBaseDir(); return new File(baseDir, home); } catch (ReflectiveOperationException e) { return null; } } return new File(path); } public String getTomcatHome() { String tomcatHome = System.getProperty("catalina.base"); if (tomcatHome == null) { tomcatHome = System.getProperty("catalina.home"); } return tomcatHome; } }