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Glassfish example source code file (GrizzlyConfig.java)
The Glassfish GrizzlyConfig.java source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can * obtain a copy of the License at * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html * or packager/legal/LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at packager/legal/LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package com.sun.enterprise.web.connector.extension; import com.sun.enterprise.admin.monitor.registry.MonitoredObjectType; import com.sun.enterprise.admin.monitor.registry.MonitoringLevel; import com.sun.enterprise.admin.monitor.registry.MonitoringLevelListener; import com.sun.enterprise.admin.monitor.registry.MonitoringRegistry; import com.sun.enterprise.config.serverbeans.Config; import com.sun.enterprise.config.serverbeans.ModuleMonitoringLevels; import com.sun.enterprise.web.WebContainer; import com.sun.logging.LogDomains; import org.glassfish.api.admin.ServerEnvironment; import org.glassfish.j2ee.statistics.Stats; import org.jvnet.hk2.component.Habitat; import javax.management.MBeanServer; import javax.management.MBeanServerFactory; import javax.management.ObjectName; import java.text.MessageFormat; import java.util.ArrayList; import java.util.ResourceBundle; import java.util.logging.Level; import java.util.logging.Logger; /** * This class track monitoring or Grizzly, using JMX to invoke Grizzly main * classes. * * @author Jeanfrancois Arcand */ public class GrizzlyConfig implements MonitoringLevelListener{ private final static Logger logger = LogDomains.getLogger(GrizzlyConfig.class, LogDomains.WEB_LOGGER); private static final ResourceBundle rb = logger.getResourceBundle(); /** * The mbean server used to lookup Grizzly. */ private MBeanServer mBeanServer; /** * Is monitoring already started. */ private boolean isMonitoringEnabled = false; /** * The JMX domain */ private String domain; /** * The port used to lookup Grizzly's Selector */ private int port; /** * The list of instance created. This list is not thread-safe. */ private static ArrayList<GrizzlyConfig> grizzlyConfigList = new ArrayList<GrizzlyConfig>(); /** * This server context's default habitat. */ private Habitat habitat = null; // --------------------------------------------------------------- // /** * Creates the monitoring helper. */ public GrizzlyConfig(WebContainer webContainer, String domain, int port) { this.domain = domain; this.port = port; this.habitat = webContainer.getServerContext().getDefaultHabitat(); // get an instance of the MBeanServer ArrayList servers = MBeanServerFactory.findMBeanServer(null); if(!servers.isEmpty()) mBeanServer = (MBeanServer)servers.get(0); else mBeanServer = MBeanServerFactory.createMBeanServer(); grizzlyConfigList.add(this); } public void destroy() { unregisterMonitoringLevelEvents(); grizzlyConfigList.remove(this); } public void initConfig(){ initMonitoringLevel(); } private void initMonitoringLevel() { try{ Config cfg = habitat.getComponent(Config.class, ServerEnvironment.DEFAULT_INSTANCE_NAME ); MonitoringLevel monitoringLevel = MonitoringLevel.OFF; // default per DTD if (cfg.getMonitoringService() != null) { ModuleMonitoringLevels levels = cfg.getMonitoringService().getModuleMonitoringLevels(); if (levels != null) { monitoringLevel = MonitoringLevel.instance( levels.getHttpService()); } } if(MonitoringLevel.OFF.equals(monitoringLevel)) { isMonitoringEnabled = false; } else { isMonitoringEnabled = true; } String methodToInvoke = isMonitoringEnabled ? "enableMonitoring" : "disableMonitoring"; invokeGrizzly(methodToInvoke); } catch (Exception ex) { String msg = rb.getString("selectorThread.initMonitoringException"); msg = MessageFormat.format(msg, new Integer(port)); logger.log(Level.WARNING, msg, ex); } } public void registerMonitoringLevelEvents() { MonitoringRegistry monitoringRegistry = habitat.getComponent(MonitoringRegistry.class); if (monitoringRegistry!=null) { monitoringRegistry.registerMonitoringLevelListener( this, MonitoredObjectType.HTTP_LISTENER); } } private void unregisterMonitoringLevelEvents() { MonitoringRegistry monitoringRegistry = habitat.getComponent(MonitoringRegistry.class); if (monitoringRegistry!=null) { monitoringRegistry.unregisterMonitoringLevelListener(this); } } public void setLevel(MonitoringLevel level) { // deprecated, ignore } public void changeLevel(MonitoringLevel from, MonitoringLevel to, MonitoredObjectType type) { if (MonitoredObjectType.HTTP_LISTENER.equals(type)) { if(MonitoringLevel.OFF.equals(to)) { isMonitoringEnabled = false; } else { isMonitoringEnabled = true; } } String methodToInvoke = isMonitoringEnabled ? "enableMonitoring" : "disabledMonitoring"; invokeGrizzly(methodToInvoke); } public void changeLevel(MonitoringLevel from, MonitoringLevel to, Stats handback) { // deprecated, ignore } protected final void invokeGrizzly(String methodToInvoke) { invokeGrizzly(methodToInvoke,null,null); } protected final void invokeGrizzly(String methodToInvoke, Object[] objects, String[] signature) { try{ String onStr = domain + ":type=Selector,name=http" + port; ObjectName objectName = new ObjectName(onStr); if (mBeanServer.isRegistered(objectName)) { mBeanServer.invoke(objectName,methodToInvoke,objects, signature); } } catch ( Exception ex ){ String msg = rb.getString("grizzlyConfig.invokeMBeanException"); msg = MessageFormat.format(msg, methodToInvoke); logger.log(Level.SEVERE, msg, ex); //throw new RuntimeException(ex); } } /** * Enable CallFlow gathering mechanism. */ public final void setEnableCallFlow(boolean enableCallFlow){ String methodToInvoke = enableCallFlow ? "enableMonitoring" : "disabledMonitoring"; invokeGrizzly(methodToInvoke); } /** * Return the list of all instance of this class. */ public static ArrayList<GrizzlyConfig> getGrizzlyConfigInstances(){ return grizzlyConfigList; } /** * Return the port this configuration belongs. */ public int getPort(){ return port; } } Other Glassfish examples (source code examples)Here is a short list of links related to this Glassfish GrizzlyConfig.java source code file: |
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