Glassfish example source code file (RuntimeInfo.java)

This example Glassfish source code file (RuntimeInfo.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

actionreport, exception, exception, inject, inject, log, logging, management, operatingsystemmxbean, operatingsystemmxbean, param, privilegedexceptionaction, reflection, runtimeinfo, security, startupcontext, string, string, stringbuilder

The Glassfish RuntimeInfo.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 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:
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 * 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.v3.admin;

import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.enterprise.config.serverbeans.JavaConfig;
import static com.sun.enterprise.util.StringUtils.ok;
import com.sun.enterprise.util.SystemPropertyConstants;
import org.glassfish.api.ActionReport;
import org.glassfish.api.Param;
import java.util.logging.Level;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedExceptionAction;
import java.lang.management.RuntimeMXBean;
import java.lang.management.OperatingSystemMXBean;
import java.lang.management.ManagementFactory;
import com.sun.enterprise.module.bootstrap.StartupContext;
import java.util.logging.Logger;
import org.glassfish.api.admin.*;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.admin.CommandLock;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.config.support.*;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.annotations.Scoped;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.component.PerLookup;
import org.jvnet.hk2.config.types.Property;
import static org.glassfish.api.ActionReport.ExitCode.SUCCESS;

/**
 * https://glassfish.dev.java.net/issues/show_bug.cgi?id=12483
 * @author Byron Nevins
 * @author Ludovic Champenois
 */
@Service(name = "_get-runtime-info")
@Scoped(PerLookup.class)
@CommandLock(CommandLock.LockType.NONE)
@ExecuteOn({RuntimeType.INSTANCE})
@TargetType({CommandTarget.DAS, CommandTarget.STANDALONE_INSTANCE, CommandTarget.CLUSTERED_INSTANCE})
public class RuntimeInfo implements AdminCommand {
    public RuntimeInfo() {
    }

    @Override
    public void execute(AdminCommandContext context) {
        report = context.getActionReport();
        report.setActionExitCode(SUCCESS);
        top = report.getTopMessagePart();
        logger = context.getLogger();
        jpdaEnabled = Boolean.parseBoolean(ctx.getArguments().getProperty("-debug"));
        javaConfig = config.getJavaConfig();
        int debugPort = parsePort(javaConfig.getDebugOptions());
        top.addProperty("debug", Boolean.toString(jpdaEnabled));
        top.addProperty("debugPort", Integer.toString(debugPort));
        final OperatingSystemMXBean osBean = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();

        top.addProperty("os.arch", osBean.getArch());
        top.addProperty("os.name", osBean.getName());
        top.addProperty("os.version", osBean.getVersion());
        top.addProperty("availableProcessorsCount", "" + osBean.getAvailableProcessors());

        // getTotalPhysicalMemorySize is from com.sun.management.OperatingSystemMXBean and cannot easily access it via OSGi
        // also if we are not on a sun jdk, we will not return this attribute.
        try {
            final Method jm = osBean.getClass().getMethod("getTotalPhysicalMemorySize");
            AccessController.doPrivileged(
                    new PrivilegedExceptionAction() {
                        public Object run() throws Exception {
                            if (!jm.isAccessible()) {
                                jm.setAccessible(true);
                            }
                            return null;
                        }
                    });

            top.addProperty("totalPhysicalMemorySize", "" + jm.invoke(osBean));

        }
        catch (Exception ex) {
            logger.log(Level.SEVERE, null, ex);
        }


        RuntimeMXBean rmxb = ManagementFactory.getRuntimeMXBean();
        top.addProperty("startTimeMillis", "" + rmxb.getStartTime());
        top.addProperty("pid", "" + rmxb.getName());
        checkDtrace();
        setDasName();
        top.addProperty("java.vm.name", System.getProperty("java.vm.name"));

        reportMessage.append(Strings.get("runtime.info.debug", jpdaEnabled ? "enabled" : "not enabled"));
        report.setMessage(reportMessage.toString());
    }

    private void checkDtrace() {
        try {
            Class.forName("com.sun.tracing.ProviderFactory");
            top.addProperty("dtrace", "true");
        }
        catch (Exception ex) {
            top.addProperty("dtrace", "false");
        }
    }

    private void setDasName() {
        try {
            String name = env.getInstanceRoot().getName();
            top.addProperty("domain_name", name);
        }
        catch (Exception ex) {
            // ignore
        }
    }

    private int parsePort(String s) {
        //"-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=9009"
        int port = -1;
        String[] ss = s.split(",");

        for (String sub : ss) {
            if (sub.startsWith("address=")) {
                try {
                    port = Integer.parseInt(sub.substring(8));
                }
                catch (Exception e) {
                    port = -1;
                }
                break;
            }
        }
        return port;
    }
    @Inject
    ServerEnvironment env;
    @Inject
    private StartupContext ctx;
    @Inject(name = ServerEnvironment.DEFAULT_INSTANCE_NAME)
    private Config config;
    @Param(name = "target", optional = true, defaultValue = SystemPropertyConstants.SERVER_NAME)
    String target;
    private boolean jpdaEnabled;
    private JavaConfig javaConfig;
    private ActionReport report;
    private ActionReport.MessagePart top;
    private Logger logger;
    private StringBuilder reportMessage = new StringBuilder();
}