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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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package net.java.visualvm.modules.glassfish.dataview;
import com.sun.appserv.management.monitor.MonitoringStats;
import com.sun.tools.visualvm.core.scheduler.Quantum;
import com.sun.tools.visualvm.core.scheduler.ScheduledTask;
import com.sun.tools.visualvm.core.scheduler.Scheduler;
import com.sun.tools.visualvm.core.scheduler.SchedulerTask;
import java.lang.reflect.UndeclaredThrowableException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.management.j2ee.statistics.CountStatistic;
import javax.management.j2ee.statistics.Statistic;
import javax.management.j2ee.statistics.Stats;
import javax.management.j2ee.statistics.TimeStatistic;
import javax.swing.table.AbstractTableModel;
import net.java.visualvm.modules.glassfish.util.Touple;
/**
*
* @author Jaroslav Bachorik
*/
public abstract class AbstractStatsTableModel<PM, M extends MonitoringStats, S extends Stats> extends AbstractTableModel {
final protected PM monitor;
private ScheduledTask refresh;
private final AtomicBoolean columnsInitialized = new AtomicBoolean(false);
private final List<Touple<String, S>> statsList = new ArrayList<Touple<String, S>>();
private String[] columnNames;
public AbstractStatsTableModel(PM aMonitor, Quantum refreshInterval) {
super();
monitor = aMonitor;
refresh = Scheduler.sharedInstance().schedule(new SchedulerTask() {
public void onSchedule(long timeStamp) {
try {
synchronized (statsList) {
statsList.clear();
for (Map.Entry<String, M> monitor : getMonitorMap().entrySet()) {
setColumnModel(monitor.getValue());
S stats = getStats(monitor.getValue());
if (!isDisplayable(stats)) {
continue;
}
statsList.add(new Touple(monitor.getKey(), stats));
}
fireTableDataChanged();
}
} catch (Exception e) {
if (!(e instanceof UndeclaredThrowableException)) {
Logger.getLogger(AbstractStatsTableModel.class.getName()).log(Level.INFO,"onSchedule",e);
} else {
Scheduler.sharedInstance().unschedule(refresh);
refresh = null;
}
}
}
}, refreshInterval, true);
}
abstract protected Map<String, M> getMonitorMap();
abstract protected S getStats(M monitor);
abstract protected boolean isDisplayable(S stats);
private void setColumnModel(M monitor) {
if (columnsInitialized.compareAndSet(false, true)) {
columnNames = monitor.getStatisticNames();
}
}
public int getColumnCount() {
if (columnsInitialized.get()) {
return columnNames.length;
} else {
return 0;
}
}
public int getRowCount() {
synchronized (statsList) {
return statsList.size();
}
}
public Object getValueAt(int rowIndex, int columnIndex) {
Touple<String, S> entry;
synchronized (statsList) {
entry = statsList.get(rowIndex);
}
switch (columnIndex) {
case 0:
{
return entry.getX();
}
default:
{
String name = columnNames[columnIndex - 1];
Statistic stat = entry.getY().getStatistic(name);
if (stat instanceof CountStatistic) {
return ((CountStatistic) stat).getCount();
} else if (stat instanceof TimeStatistic) {
TimeStatistic ts = (TimeStatistic) stat;
return ts.getCount() != 0 ? (double) ts.getTotalTime() / (double) ts.getCount() : 0.0;
}
return stat;
}
}
}
@Override
public String getColumnName(int column) {
if (columnsInitialized.get()) {
switch (column) {
case 0:
{
return "Name";
}
default:
{
return columnNames[column - 1];
}
}
} else {
return super.getColumnName(column);
}
}
}