Get problem integration Dynamic chart to eclipse RCP

[etha.ri...@gmail.com]

Hello everyone,

I want to make a dynamic chart in eclipse rcp and I've got error like
this

Exception in thread "AWT-EventQueue-0" org.eclipse.swt.SWTException:
Invalid thread access
at org.eclipse.swt.SWT.error(SWT.java:3777)
at org.eclipse.swt.SWT.error(SWT.java:3695)
at org.eclipse.swt.SWT.error(SWT.java:3666)
at org.eclipse.swt.widgets.Widget.error(Widget.java:463)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:355)
at org.eclipse.swt.widgets.Control.redraw(Control.java:1986)
at org.jfree.experimental.chart.swt.ChartComposite.chartChanged
(ChartComposite.java:961)
at org.jfree.chart.JFreeChart.notifyListeners(JFreeChart.java:1517)
at org.jfree.chart.JFreeChart.plotChanged(JFreeChart.java:1583)
at org.jfree.chart.plot.Plot.notifyListeners(Plot.java:968)
at org.jfree.chart.plot.XYPlot.datasetChanged(XYPlot.java:4521)
at org.jfree.data.general.AbstractDataset.notifyListeners
(AbstractDataset.java:185)
at org.jfree.data.general.AbstractDataset.fireDatasetChanged
(AbstractDataset.java:168)
at org.jfree.data.general.AbstractSeriesDataset.seriesChanged
(AbstractSeriesDataset.java:110)
at org.jfree.data.general.Series.notifyListeners(Series.java:328)
at org.jfree.data.general.Series.fireSeriesChanged(Series.java:313)
at org.jfree.data.time.TimeSeries.add(TimeSeries.java:533)
at org.jfree.data.time.TimeSeries.add(TimeSeries.java:562)
at org.jfree.data.time.TimeSeries.add(TimeSeries.java:548)
at org.example.memoryusagechart.View.addTotalObservation(View.java:
112)
at org.example.memoryusagechart.View.access$0(View.java:111)
at org.example.memoryusagechart.View$DataGenerator.actionPerformed
(View.java:132)
at javax.swing.Timer.fireActionPerformed(Unknown Source)
at javax.swing.Timer$DoPostEvent.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown
Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)


I use source from JFreeChart (dynamic chart), this the code :

package org.example.memoryusagechart;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.part.ViewPart;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.time.Millisecond;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.experimental.chart.swt.ChartComposite;
import org.jfree.ui.RectangleInsets;

import javax.swing.Timer;

public class View extends ViewPart {
public static final String ID = "MemoryUsageChart.view";

private TimeSeries total;
private TimeSeries free;

//private static XYPlot plot;

public View() {

}

/**
* This is a callback that will allow us to create the viewer and
initialize
* it.
*/
public void createPartControl(Composite parent) {

new DataGenerator(100).start();

this.total = new TimeSeries("Total", Millisecond.class);
this.total.setMaximumItemAge(30000);
this.free = new TimeSeries("Free", Millisecond.class);
this.free.setMaximumItemAge(30000);

TimeSeriesCollection dataset = new TimeSeriesCollection();
dataset.addSeries(this.total);
dataset.addSeries(this.free);

DateAxis domain = new DateAxis("Time");

NumberAxis range = new NumberAxis("Memory");

domain.setTickLabelFont(new Font("SansSerif", Font.PLAIN,
12));
range.setTickLabelFont(new Font("SansSerif", Font.PLAIN, 12));
domain.setLabelFont(new Font("SansSerif", Font.PLAIN, 14));
range.setLabelFont(new Font("SansSerif", Font.PLAIN, 14));

XYItemRenderer renderer = new XYLineAndShapeRenderer(true,
false);
renderer.setSeriesPaint(0, Color.red);
renderer.setSeriesPaint(1, Color.green);
renderer.setStroke(new BasicStroke(3f, BasicStroke.CAP_BUTT,
BasicStroke.JOIN_BEVEL));

XYPlot plot = new XYPlot(dataset, domain, range, renderer);
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));

domain.setAutoRange(true);
domain.setLowerMargin(0.0);
domain.setUpperMargin(0.0);
domain.setTickLabelsVisible(true);
range.setStandardTickUnits(NumberAxis.createIntegerTickUnits
());

JFreeChart chart = new JFreeChart("JVM Memory Usage",
new Font("SansSerif", Font.BOLD, 24), plot, true);
final ChartComposite frame = new ChartComposite(parent, SWT.NONE,
chart, true);

frame.setBounds(200, 120, 600, 280);
frame.setVisible(true);


}

/*private static JFreeChart createChart() {




chart.setBackgroundPaint(new Color(249, 231, 236));

return chart;
}*/

/**
* Adds an observation to the ’total memory’ time series.
*
* @param y the total memory used.
*/
private void addTotalObservation(double y) {
this.total.add(new Millisecond(), y);
}

private void addFreeObservation(double y) {
this.free.add(new Millisecond(), y);
}

class DataGenerator extends Timer implements ActionListener {

DataGenerator(int interval) {
// TODO Auto-generated constructor stub
super(interval, null);
addActionListener(this);
}

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
long f = Runtime.getRuntime().freeMemory();
long t = Runtime.getRuntime().totalMemory();
addTotalObservation(t);
addFreeObservation(f);
}

}

/**
* Passing the focus request to the viewer's control.
*/
public void setFocus() {

}

}


please help me to solve the problem. Thanks before.


Regards,


Ringo

[Lars Vogel]

Hi,

an example for JFreeChart with Eclipse RCP can be found here: http://www.vogella.de/articles/EclipseJFreeChart/article.html

Best regards, Lars

2009/6/9 <etha.ri...@gmail.com>

--
Lars
http://www.vogella.de - Tutorial about Java, Eclipse and Web programming

[mona]

Hi Lars,

The link (http://www.vogella.de/articles/EclipseJFreeChart/article.html) you have mentioned for JFreeChart with Eclipse RCP example, redirects to the page showing the usage of JFreeChart with Swings. Please could you help out and provide an example of using JFreeChart with RCP.

Thanks in advance!

Regards,

Mona

[Lars Vogel]

JFreeChart on Swt is not maintained anymore.

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[mona]

Hi Lars,

Oh okay! Then I shall make use of  http://code.google.com/p/swt-xy-graph/.

Thank you!

Regards,

Mona

[Lars Vogel]

Hi Mona,

you can also have a look at Eclipse BIRT which also has an API to create create looking Charts.

Best regards, Lars

2012/4/27 mona <monach...@gmail.com>

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http://www.vogella.com - Eclipse, Android and Java Tutorials
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[mona]

Hi Lars,

Can only a BIRT chart be added as a composite to my RCP view without the report format? Please could you provide more information on the same. I followed your tutorial http://www.vogella.com/articles/EclipseBIRT/article.html, but that appends the entire report to my RCP view. I wanted only the chart added to my RCP view.

Thanks in advance!

Best Regards,

Mona

[Lars Vogel]

Please see my FAQ.

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