UptimeCommand.java

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package com.sun.enterprise.v3.admin;

import com.sun.enterprise.config.serverbeans.Domain;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import org.glassfish.api.Param;
import org.glassfish.server.ServerEnvironmentImpl;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.admin.CommandLock;
import org.glassfish.api.I18n;
import org.glassfish.api.ActionReport;

import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PerLookup;
import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.enterprise.universal.Duration;
import org.glassfish.api.admin.*;

import javax.inject.Inject;

/**
 * uptime command
 * Reports on how long the server has been running.
 * 
 */
@Service(name = "uptime")
@PerLookup
@CommandLock(CommandLock.LockType.NONE)
@I18n("uptime")
@RestEndpoints({
    @RestEndpoint(configBean=Domain.class,
        opType=RestEndpoint.OpType.GET, 
        path="uptime", 
        description="Uptime",
        useForAuthorization=true)
})
public class UptimeCommand implements AdminCommand {

    @Inject
    ServerEnvironmentImpl env;
    @Param(name = "milliseconds", optional = true, defaultValue = "false")
    Boolean milliseconds;

    public void execute(AdminCommandContext context) {
        final ActionReport report = context.getActionReport();
        long totalTime_ms = getUptime();
        String totalTime_mss = "" + totalTime_ms;	
        Duration duration = new Duration(totalTime_ms);
        duration.setTerse();
        report.setActionExitCode(ActionReport.ExitCode.SUCCESS);
        String message;

        if (milliseconds)
            message = totalTime_mss;
        else
            message = localStrings.getLocalString("uptime.output.terse", "Uptime: {0}", duration);

        report.setMessage(message);
        report.getTopMessagePart().addProperty("milliseconds", totalTime_mss);
    }
    final private static LocalStringManagerImpl localStrings = new LocalStringManagerImpl(UptimeCommand.class);

    private long getUptime() {
        RuntimeMXBean mxbean = ManagementFactory.getRuntimeMXBean();
        long totalTime_ms = -1;

        if (mxbean != null)
            totalTime_ms = mxbean.getUptime();

        if (totalTime_ms <= 0) {
            long start = env.getStartupContext().getCreationTime();
            totalTime_ms = System.currentTimeMillis() - start;
        }
        return totalTime_ms;
    }
}