public Graph getBuildTimeGraph()

in core/src/main/java/hudson/model/Job.java [1401:1534]
105 lines of code
11 McCabe index (conditional complexity)

    public Graph getBuildTimeGraph() {
        return new Graph(getLastBuildTime(),500,400) {
            @Override
            protected JFreeChart createGraph() {
                class ChartLabel implements Comparable<ChartLabel> {
                    final Run run;

                    public ChartLabel(Run r) {
                        this.run = r;
                    }

                    public int compareTo(ChartLabel that) {
                        return this.run.number - that.run.number;
                    }

                    @Override
                    public boolean equals(Object o) {
                        // HUDSON-2682 workaround for Eclipse compilation bug
                        // on (c instanceof ChartLabel)
                        if (o == null || !ChartLabel.class.isAssignableFrom( o.getClass() ))  {
                            return false;
                        }
                        ChartLabel that = (ChartLabel) o;
                        return run == that.run;
                    }

                    public Color getColor() {
                        // TODO: consider gradation. See
                        // http://www.javadrive.jp/java2d/shape/index9.html
                        Result r = run.getResult();
                        if (r == Result.FAILURE)
                            return ColorPalette.RED;
                        else if (r == Result.UNSTABLE)
                            return ColorPalette.YELLOW;
                        else if (r == Result.ABORTED || r == Result.NOT_BUILT)
                            return ColorPalette.GREY;
                        else
                            return ColorPalette.BLUE;
                    }

                    @Override
                    public int hashCode() {
                        return run.hashCode();
                    }

                    @Override
                    public String toString() {
                        String l = run.getDisplayName();
                        if (run instanceof Build) {
                            String s = ((Build) run).getBuiltOnStr();
                            if (s != null)
                                l += ' ' + s;
                        }
                        return l;
                    }

                }

                DataSetBuilder<String, ChartLabel> data = new DataSetBuilder<>();
                for (Run r : getNewBuilds()) {
                    if (r.isBuilding())
                        continue;
                    data.add(((double) r.getDuration()) / (1000 * 60), "min",
                            new ChartLabel(r));
                }

                final CategoryDataset dataset = data.build();

                final JFreeChart chart = ChartFactory.createStackedAreaChart(null, // chart
                                                                                    // title
                        null, // unused
                        Messages.Job_minutes(), // range axis label
                        dataset, // data
                        PlotOrientation.VERTICAL, // orientation
                        false, // include legend
                        true, // tooltips
                        false // urls
                        );

                chart.setBackgroundPaint(Color.white);

                final CategoryPlot plot = chart.getCategoryPlot();

                // plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
                plot.setBackgroundPaint(Color.WHITE);
                plot.setOutlinePaint(null);
                plot.setForegroundAlpha(0.8f);
                // plot.setDomainGridlinesVisible(true);
                // plot.setDomainGridlinePaint(Color.white);
                plot.setRangeGridlinesVisible(true);
                plot.setRangeGridlinePaint(Color.black);

                CategoryAxis domainAxis = new ShiftedCategoryAxis(null);
                plot.setDomainAxis(domainAxis);
                domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
                domainAxis.setLowerMargin(0.0);
                domainAxis.setUpperMargin(0.0);
                domainAxis.setCategoryMargin(0.0);

                final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
                ChartUtil.adjustChebyshev(dataset, rangeAxis);
                rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

                StackedAreaRenderer ar = new StackedAreaRenderer2() {
                    @Override
                    public Paint getItemPaint(int row, int column) {
                        ChartLabel key = (ChartLabel) dataset.getColumnKey(column);
                        return key.getColor();
                    }

                    @Override
                    public String generateURL(CategoryDataset dataset, int row,
                            int column) {
                        ChartLabel label = (ChartLabel) dataset.getColumnKey(column);
                        return String.valueOf(label.run.number);
                    }

                    @Override
                    public String generateToolTip(CategoryDataset dataset, int row,
                            int column) {
                        ChartLabel label = (ChartLabel) dataset.getColumnKey(column);
                        return label.run.getDisplayName() + " : "
                                + label.run.getDurationString();
                    }
                };
                plot.setRenderer(ar);

                // crop extra space around the graph
                plot.setInsets(new RectangleInsets(0, 0, 0, 5.0));

                return chart;
            }
        };
    }