perftests/visualisation-jfc/src/main/java/org/apache/qpid/disttest/charting/chartbuilder/StatisticalBarChartBuilder.java

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 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
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package org.apache.qpid.disttest.charting.chartbuilder;

import java.awt.Font;

import org.apache.qpid.disttest.charting.definition.SeriesDefinition;
import org.apache.qpid.disttest.charting.seriesbuilder.DatasetHolder;
import org.apache.qpid.disttest.charting.seriesbuilder.SeriesBuilder;
import org.apache.qpid.disttest.charting.seriesbuilder.SeriesRow;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.renderer.category.StatisticalBarRenderer;
import org.jfree.data.general.Dataset;
import org.jfree.data.statistics.DefaultStatisticalCategoryDataset;
import org.jfree.data.statistics.StatisticalCategoryDataset;

public class StatisticalBarChartBuilder extends BaseChartBuilder
{
    public StatisticalBarChartBuilder(SeriesBuilder seriesBuilder)
    {
        super(seriesBuilder);
    }

    @Override
    protected DatasetHolder newDatasetHolder()
    {
        return new DatasetHolder()
        {
            private final DefaultStatisticalCategoryDataset _dataset = new DefaultStatisticalCategoryDataset();

            @Override
            public void addDataPointToSeries(SeriesDefinition seriesDefinition, SeriesRow row)
            {
                String x = row.dimensionAsString(0);
                double mean = row.dimensionAsDouble(1);
                double stdDev = row.dimensionAsDouble(2);
                _dataset.add(mean, stdDev, seriesDefinition.getSeriesLegend(), x);
            }

            @Override
            public void beginSeries(SeriesDefinition seriesDefinition)
            {
                // unused
            }

            @Override
            public void endSeries(SeriesDefinition seriesDefinition)
            {
                // unused
            }

            @Override
            public int getNumberOfDimensions()
            {
                return 3;
            }

            @Override
            public Dataset getPopulatedDataset()
            {
                return _dataset;
            }
        };
    }

    @Override
    protected SeriesStrokeAndPaintApplier newStrokeAndPaintApplier()
    {
        return new CategoryStrokeAndPaintApplier();
    }

    @Override
    public JFreeChart createChartImpl(String title, String xAxisTitle, String yAxisTitle, final Dataset dataset,
            PlotOrientation plotOrientation, boolean showLegend, boolean showToolTips, boolean showUrls)
    {
        CategoryAxis xAxis = new CategoryAxis(xAxisTitle);
        ValueAxis yAxis = new NumberAxis(yAxisTitle);
        CategoryItemRenderer renderer = new StatisticalBarRenderer();

        CategoryPlot plot = new CategoryPlot((StatisticalCategoryDataset) dataset, xAxis, yAxis, renderer);

        JFreeChart chart = new JFreeChart(title, new Font("Arial", Font.PLAIN, 10), plot, true);

        chart.getCategoryPlot().getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.UP_45);

        return chart;
    }

}