Java tutorial
/* * 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 * specific language governing permissions and limitations * under the License. * */ package org.apache.qpid.disttest.charting.chartbuilder; 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.CategoryLabelPositions; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.general.Dataset; public abstract class CategoryDataSetBasedChartBuilder extends BaseChartBuilder { public CategoryDataSetBasedChartBuilder(SeriesBuilder seriesBuilder) { super(seriesBuilder); } @Override protected DatasetHolder newDatasetHolder() { return new DatasetHolder() { final private DefaultCategoryDataset _dataset = new DefaultCategoryDataset(); @Override public void addDataPointToSeries(SeriesDefinition seriesDefinition, SeriesRow row) { String x = row.dimensionAsString(0); double y = row.dimensionAsDouble(1); _dataset.addValue(y, seriesDefinition.getSeriesLegend(), x); } @Override public void beginSeries(SeriesDefinition seriesDefinition) { // unused } @Override public void endSeries(SeriesDefinition seriesDefinition) { // unused } @Override public int getNumberOfDimensions() { return 2; } @Override public Dataset getPopulatedDataset() { return _dataset; } }; } @Override protected SeriesStrokeAndPaintApplier newStrokeAndPaintApplier() { return new CategoryStrokeAndPaintApplier(); } @Override protected final JFreeChart createChartImpl(String title, String xAxisTitle, String yAxisTitle, Dataset dataset, PlotOrientation plotOrientation, boolean showLegend, boolean showToolTips, boolean showUrls) { JFreeChart chart = createCategoryChart(title, xAxisTitle, yAxisTitle, dataset, plotOrientation, showLegend, showToolTips, showUrls); chart.getCategoryPlot().getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.UP_45); return chart; } protected abstract JFreeChart createCategoryChart(String title, String xAxisTitle, String yAxisTitle, Dataset dataset, PlotOrientation plotOrientation, boolean showLegend, boolean showToolTips, boolean showUrls); }