org.jboss.as.console.client.shared.runtime.charts.ColumnChartView Maven / Gradle / Ivy

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Bundles the core AS7 console as a GWT module. Includes minor customizations to support extensions.

There is a newer version: 0.7.0.Final

package org.jboss.as.console.client.shared.runtime.charts;

import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.visualization.client.AbstractDataTable;
import com.google.gwt.visualization.client.DataTable;
import com.google.gwt.visualization.client.visualizations.corechart.AxisOptions;
import com.google.gwt.visualization.client.visualizations.corechart.ColumnChart;
import com.google.gwt.visualization.client.visualizations.corechart.CoreChart;
import com.google.gwt.visualization.client.visualizations.corechart.Options;
import org.jboss.as.console.client.shared.runtime.Metric;
import org.jboss.as.console.client.shared.runtime.Sampler;

import java.util.Date;

/**
 * Needs to be {@link #recycle()}ed after is was hidden.
 * Typically this happens in Presenter.onReset()
 *
 * @author Heiko Braun
 * @date 10/25/11
 */
public class ColumnChartView extends AbstractChartView implements Sampler {

    private DataTable data;
    private ColumnChart chart;

    private VerticalPanel layout;
    private Column[] columns = null;

    private boolean timelineSeries = true;

    public ColumnChartView(int width, int height, String title) {
        super(width, height, title);
    }

    public ColumnChartView setColumns(Column... columns) {
        this.columns = columns;
        return this;
    }

    public ColumnChartView setTimelineSeries(boolean timelineSeries) {
        this.timelineSeries = timelineSeries;
        return this;
    }

    public Widget asWidget() {
        layout = new VerticalPanel();

        // chart
        chart = new ColumnChart(createTable(), createOptions()) ;
        layout.add(chart);

        return layout;

    }

    private DataTable createTable() {

        if(null==columns)
            throw new RuntimeException("Columns not specified");

        data = DataTable.create();

        // default
        data.addColumn(AbstractDataTable.ColumnType.DATE, "Time");

        for(Column c : columns)
        {
            data.addColumn(c.getType(), c.getLabel());
        }

        return data;
    }

    private Options createOptions() {
        Options options = Options.create();
        options.setWidth(width);
        options.setHeight(height);
        options.setTitle(title);
        options.setType(CoreChart.Type.COLUMNS);
        //options.setLegend(LegendPosition.BOTTOM);

        return options;
    }

    public void addSample(Metric metric) {

        if(chart==null)
        {
            throw new RuntimeException("chart is null. Did you forget to #recycle() ?");
        }

        if(data.getNumberOfRows()==0 || timelineSeries)
            data.addRow();

        int nextRow = data.getNumberOfRows()-1;

        // default
        data.setValue(nextRow, 0, new Date(System.currentTimeMillis()));


        DataTableAdapter adapter = new DataTableAdapter(data);

        for(int i=0; i