org.smallmind.javafx.extras.instrument.JMXVelocityChart Maven / Gradle / Ivy
/*
* Copyright (c) 2007 through 2024 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
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* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
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package org.smallmind.javafx.extras.instrument;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import javax.management.Attribute;
import javax.management.AttributeList;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javafx.application.Platform;
import org.smallmind.javafx.extras.dialog.JavaErrorDialog;
public class JMXVelocityChart extends VelocityChart {
private static final String[] DISTRIBUTION_ATTRIBUTES = new String[] {"AverageVelocity", "OneMinuteAvgVelocity", "OneMinuteAvgVelocity", "OneMinuteAvgVelocity"};
private static final ScheduledExecutorService SCHEDULED_EXECUTOR = Executors.newScheduledThreadPool(2, new ThreadFactory() {
@Override
public Thread newThread (final Runnable runnable) {
Thread thread = new Thread(runnable);
thread.setDaemon(true);
return thread;
}
});
private final MBeanServerConnection mBeanServerConnection;
private final ObjectName objectName;
private final ScheduledFuture future;
public JMXVelocityChart (long spanInMilliseconds, MBeanServerConnection mBeanServerConnection, ObjectName objectName) {
super(spanInMilliseconds);
this.mBeanServerConnection = mBeanServerConnection;
this.objectName = objectName;
setTitle("Attribute/get");
getXAxis().setLabel("Time");
getYAxis().setLabel("Velocity (qty/sec)");
future = SCHEDULED_EXECUTOR.scheduleAtFixedRate(new Runnable() {
@Override
public void run () {
collectData();
}
}, 1, 15, TimeUnit.SECONDS);
}
private void collectData () {
if (!isPaused()) {
try {
AttributeList attributeList = mBeanServerConnection.getAttributes(objectName, DISTRIBUTION_ATTRIBUTES);
addBlur(System.currentTimeMillis(), new Blur((Double)((Attribute)attributeList.get(0)).getValue(), (Double)((Attribute)attributeList.get(1)).getValue(), (Double)((Attribute)attributeList.get(2)).getValue(), (Double)((Attribute)attributeList.get(3)).getValue()));
} catch (final Exception exception) {
setPaused(true);
Platform.runLater(new Runnable() {
@Override
public void run () {
JavaErrorDialog.showJavaErrorDialog(this, exception);
}
});
}
}
}
@Override
public void stop () {
future.cancel(false);
super.stop();
}
}