package org.jboss.as.console.client.shared.runtime.vm;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.visualization.client.visualizations.corechart.AxisOptions;
import com.google.gwt.visualization.client.visualizations.corechart.LineChart;
import com.google.gwt.visualization.client.visualizations.corechart.Options;
import org.jboss.as.console.client.Console;
import org.jboss.as.console.client.shared.help.StaticHelpPanel;
import org.jboss.as.console.client.shared.runtime.Metric;
import org.jboss.as.console.client.shared.runtime.Sampler;
import org.jboss.as.console.client.shared.runtime.charts.Column;
import org.jboss.as.console.client.shared.runtime.charts.LineChartView;
import org.jboss.as.console.client.shared.runtime.charts.NumberColumn;
import org.jboss.as.console.client.shared.runtime.plain.PlainColumnView;
import java.util.Date;
/**
* @author Heiko Braun
* @date 9/29/11
*/
public class HeapChartView implements Sampler {
private Sampler sampler;
private String title;
private boolean hasHelp = true;
public HeapChartView(String title) {
this.title = title;
}
public HeapChartView(String title, boolean hasHelp) {
this.title = title;
this.hasHelp = hasHelp;
}
public Widget asWidget() {
return displayStrategy();
}
private Widget displayStrategy() {
Column maxHeap = new NumberColumn("max","Max").setBaseline(true);
Column[] heapCols = new Column[] {
maxHeap,
new NumberColumn("used","Used").setComparisonColumn(maxHeap),
new NumberColumn("comitted","Committed"),
new NumberColumn("init","Init"),
};
if(Console.visAPILoaded()) {
sampler = new NormalizedLineChartView(320,200, title)
.setColumns(heapCols);
}
else
{
sampler = new PlainColumnView(title)
.setColumns(heapCols);
if(hasHelp) {
StringBuilder html = new StringBuilder();
html.append("<table class='help-attribute-descriptions'>");
html.append("<tr><td>max: </td><td>The maximum amount of memory in bytes that can be used for memory management.</td></tr>");
html.append("<tr><td>used: </td><td>The amount of used memory in mega bytes.</td></tr>");
html.append("<tr><td>comitted: </td><td>The amount of memory in bytes that is committed for the Java virtual machine to use.</td></tr>");
html.append("<tr><td>init: </td><td>The amount of memory in bytes that the Java virtual machine initially requests from the operating system for memory management.</td></tr>");
html.append("</table>");
((PlainColumnView)sampler).setStaticHelp(new StaticHelpPanel(html.toString()));
}
}
return sampler.asWidget();
}
@Override
public void addSample(Metric metric) {
long[] converted = new long[metric.numSamples()];
for(int i=0; i<metric.numSamples();i++)
{
converted[i] = toMB(Long.valueOf(metric.get(i)).longValue());
}
sampler.addSample(new Metric(converted));
}
private static long toMB(long value) {
return (value/1024l)/1024l;
}
@Override
public void clearSamples() {
sampler.clearSamples();
}
@Override
public long numSamples() {
return sampler.numSamples();
}
@Override
public void recycle() {
sampler.recycle();
}
class NormalizedLineChartView extends LineChartView {
NormalizedLineChartView(int width, int height, String title) {
super(width, height, title);
}
@Override
public void addSample(Metric metric) {
long used = Long.valueOf(metric.get(0));
long max = Long.valueOf(metric.get(1));
long usedMb = ( used/1024)/1024;
long maxMb = (max/1024)/1024;
if(chart==null)
{
chart = new LineChart(createTable(), createOptions()) ;
chart.setTitle(title);
layout.add(chart);
}
data.addRow();
int nextRow = data.getNumberOfRows()-1;
// default
data.setValue(nextRow, 0, new Date(System.currentTimeMillis()));
data.setValue(nextRow, 1, usedMb);
Options options = createOptions();
AxisOptions vaxis = AxisOptions.create();
vaxis.setMaxValue(maxMb);
options.setVAxisOptions(vaxis);
AxisOptions haxis = AxisOptions.create();
haxis.set("showTextEvery", "25.00");
haxis.set("maxAlternation", "1");
options.setHAxisOptions(haxis);
chart.draw(data, options);
}
}
/*
public void addSample(HeapMetric heap) {
long usedMb = (heap.getUsed()/1024)/1024;
long maxMb = (heap.getMax()/1024)/1024;
maxLabel.setHTML("Max: " + maxMb + " mb");
usedLabel.setHTML("Used: "+usedMb+" mb");
data.addRow();
int nextRow = data.getNumberOfRows()-1;
data.setValue(nextRow, 0, new Date(System.currentTimeMillis()));
data.setValue(nextRow, 1, usedMb);
Options options = createOptions();
AxisOptions vaxis = AxisOptions.create();
vaxis.setMaxValue(maxMb);
options.setVAxisOptions(vaxis);
AxisOptions haxis = AxisOptions.create();
haxis.set("showTextEvery", "10.00");
haxis.set("maxAlternation", "1");
options.setHAxisOptions(haxis);
chart.draw(data, options);
}
*/
}