WebModuleVirtualServerStatsImpl.java

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package org.glassfish.web.admin.monitor.statistics;

import org.glassfish.web.admin.monitor.HttpServiceStatsProviderBootstrap;
import org.jvnet.hk2.annotations.Service;

import org.glassfish.hk2.api.PerLookup;
import javax.inject.Inject;
import org.glassfish.api.ActionReport;
import org.glassfish.api.ActionReport.ExitCode;
import org.glassfish.external.statistics.CountStatistic; 
import org.glassfish.external.statistics.RangeStatistic;
import org.glassfish.admin.monitor.cli.MonitorContract;
import org.glassfish.flashlight.datatree.TreeNode;
import org.glassfish.flashlight.MonitoringRuntimeDataRegistry;
import org.glassfish.api.Param;
import java.util.List;
import java.util.ResourceBundle;

/** 
 *
 * For v3 Prelude, following stats will be available
 *
 * asc activeSessionsCount, 
 * ast activatedSessionsTotal, 
 * rst rejectedSessionsTotal, 
 * st  sessionsTotal
 * ajlc activeJspsLoadedCount, 
 * mjlc maxJspsLoadedCount, 
 * tjlc totalJspsLoadedCount
 * aslc activeServletsLoadedCount, 
 * mslc maxServletsLoadedCount, 
 * tslc totalServletsLoadedCount
 *
 * ash activeSessionsHigh, 
 * est expiredSessionsTotal, 
 * pvst passivatedSessionsTotal, 
 * pst persistedSessionsTotal, 
 */
@Service
@PerLookup
public class WebModuleVirtualServerStatsImpl implements MonitorContract {

    // app name otherwise web
    @Param (optional=true)
    String appName;

    @Inject
    private MonitoringRuntimeDataRegistry mrdr;

    private static final ResourceBundle rb = HttpServiceStatsProviderBootstrap.rb;

    private final static String name = "webmodule";

    private final static String displayFormat = 
    "%1$-5s %2$-5s %3$-5s %4$-5s %5$-5s %6$-5s %7$-5s %8$-8s %9$-10s %10$-5s";

    public String getName() {
        return name;
    }

    public ActionReport process(final ActionReport report, final String filter) {

        if (mrdr == null) {
            report.setActionExitCode(ActionReport.ExitCode.FAILURE);
            report.setMessage(rb.getString(HTTPListenerStatsImpl.MRDR_NULL));
            return report;
        }

        TreeNode serverNode = mrdr.get("server");
        if (serverNode == null) {
            report.setActionExitCode(ActionReport.ExitCode.FAILURE);
            report.setMessage(rb.getString(HTTPListenerStatsImpl.MRDR_NULL));
            return report;
        }

        String [] patternArr;
            
        if (appName != null) {
            // post prelude - need to fix this for virtual server 
            patternArr = new String [] {"server.applications." + appName + ".*.*"};
        } else {
            patternArr = new String [] {"server.web.session.*", 
                    "server.web.servlet.*", "server.web.jsp.*"};
        }
        
	long activeSessionsCount = 0; 
	long sessionsTotal = 0;
	long rejectedSessionsTotal = 0; 
	long activatedSessionsTotal = 0; 

	long activeJspsLoadedCount = 0; 
	long maxJspsLoadedCount = 0; 
	long totalJspsLoadedCount = 0;

	long activeServletsLoadedCount = 0; 
	long maxServletsLoadedCount = 0; 
	long totalServletsLoadedCount = 0;

        long lval = 0;

        for (String pattern : patternArr) {
            List<TreeNode> tnL = serverNode.getNodes(pattern);
            for (TreeNode tn : tnL) {
                if (tn.hasChildNodes()) {
                    continue;
                }

                if ("activesessionscount".equals(tn.getName())) { 
                    activeSessionsCount = getRangeStatisticValue(tn.getValue());
                } else if ("activatedsessionstotal".equals(tn.getName())) { 
                    activatedSessionsTotal = getCountStatisticValue(tn.getValue());
                } else if ("rejectedsessionstotal".equals(tn.getName())) { 
                    rejectedSessionsTotal = getCountStatisticValue(tn.getValue());
                } else if ("sessionstotal".equals(tn.getName())) { 
                    sessionsTotal = getCountStatisticValue(tn.getValue());
                } else if ("activejspsloadedcount".equals(tn.getName())) { 
                    activeJspsLoadedCount = getRangeStatisticValue(tn.getValue());
                } else if ("maxjspsloadedcount".equals(tn.getName())) { 
                    maxJspsLoadedCount = getCountStatisticValue(tn.getValue());
                } else if ("totaljspsloadedcount".equals(tn.getName())) { 
                    totalJspsLoadedCount = getCountStatisticValue(tn.getValue());
                } else if ("activeservletsloadedcount".equals(tn.getName())) { 
                    activeServletsLoadedCount = getRangeStatisticValue(tn.getValue());
                } else if ("maxservletsloadedcount".equals(tn.getName())) { 
                    maxServletsLoadedCount = getCountStatisticValue(tn.getValue());
                } else if ("totalservletsloadedcount".equals(tn.getName())) { 
                    totalServletsLoadedCount = getCountStatisticValue(tn.getValue());
                }
            }

        }

        report.setMessage(String.format(displayFormat, 
                activeSessionsCount, activatedSessionsTotal,
                rejectedSessionsTotal, sessionsTotal,
                activeJspsLoadedCount, maxJspsLoadedCount, 
                totalJspsLoadedCount,
                activeServletsLoadedCount, maxServletsLoadedCount,
                totalServletsLoadedCount));

        report.setActionExitCode(ExitCode.SUCCESS);
        return report;
    }

    private long getCountStatisticValue(Object obj) {
        long l = 0L;
        if (obj == null) return l;
        if (obj instanceof CountStatistic) {
            return ((CountStatistic)obj).getCount();
        }
        return l;
    }

    private long getRangeStatisticValue(Object obj) {
        long l = 0L;
        if (obj == null) return l;
        if (obj instanceof RangeStatistic) {
            return ((RangeStatistic)obj).getCurrent();
        }
        return l;
    }
}