Example usage for org.apache.commons.collections15.functors TruePredicate getInstance

Introduction

In this page you can find the example usage for org.apache.commons.collections15.functors TruePredicate getInstance.

Prototype

public static <T> Predicate<T> getInstance() 

Source Link

Document

Factory returning the singleton instance.

Usage

From source file:org.eobjects.datacleaner.widgets.visualization.VisualizeJobGraph.java

public JComponent renderGraph() {
    final int vertexCount = _graph.getVertexCount();
    if (vertexCount == 0) {
        _graph.addVertex("No components in job");
    }//from   w ww .j  a  va 2  s.c  o m
    logger.debug("Rendering graph with {} vertices", vertexCount);

    final VisualizeJobLayoutTransformer layoutTransformer = new VisualizeJobLayoutTransformer(_graph);
    final Dimension preferredSize = layoutTransformer.getPreferredSize();
    final StaticLayout<Object, VisualizeJobLink> layout = new StaticLayout<Object, VisualizeJobLink>(_graph,
            layoutTransformer, preferredSize);

    Collection<Object> vertices = _graph.getVertices();
    for (Object vertex : vertices) {
        // manually initialize all vertices
        layout.transform(vertex);
    }
    if (!layoutTransformer.isTransformed()) {
        throw new IllegalStateException("Layout transformer was never invoked!");
    }

    final VisualizationViewer<Object, VisualizeJobLink> visualizationViewer = new VisualizationViewer<Object, VisualizeJobLink>(
            layout);
    visualizationViewer.setSize(preferredSize);
    GraphUtils.applyStyles(visualizationViewer);

    final RenderContext<Object, VisualizeJobLink> renderContext = visualizationViewer.getRenderContext();

    // render fonts (some may be highlighted)
    renderContext.setVertexFontTransformer(new Transformer<Object, Font>() {

        private final Font normalFont = WidgetUtils.FONT_SMALL;
        private final Font highlighedFont = normalFont.deriveFont(Font.BOLD);

        @Override
        public Font transform(Object vertex) {
            if (_highlighedVertexes.contains(vertex)) {
                return highlighedFont;
            }
            return normalFont;
        }
    });

    // render labels
    renderContext.setVertexLabelTransformer(new Transformer<Object, String>() {
        @Override
        public String transform(Object obj) {
            if (obj instanceof InputColumn) {
                return ((InputColumn<?>) obj).getName();
            }
            if (obj instanceof AbstractBeanJobBuilder) {
                return LabelUtils.getLabel((AbstractBeanJobBuilder<?, ?, ?>) obj);
            }
            if (obj instanceof FilterOutcome) {
                return ((FilterOutcome) obj).getCategory().name();
            }
            if (obj instanceof Table) {
                return ((Table) obj).getName();
            }
            if (obj instanceof Class) {
                Class<?> cls = (Class<?>) obj;
                if (ReflectionUtils.is(cls, AnalyzerResult.class)) {
                    return "Analyzer result";
                }
                return cls.getSimpleName();
            }
            return obj.toString();
        }
    });

    // render arrows
    final Predicate<Context<Graph<Object, VisualizeJobLink>, VisualizeJobLink>> edgeArrowPredicate = TruePredicate
            .getInstance();
    renderContext.setEdgeArrowPredicate(edgeArrowPredicate);

    // render icons
    renderContext.setVertexIconTransformer(new Transformer<Object, Icon>() {

        @Override
        public Icon transform(Object obj) {
            if (obj == MORE_COLUMNS_VERTEX || obj instanceof InputColumn) {
                return imageManager.getImageIcon("images/model/column.png", IconUtils.ICON_SIZE_SMALL);
            }
            if (obj instanceof AbstractBeanJobBuilder) {
                return IconUtils.getDescriptorIcon(((AbstractBeanJobBuilder<?, ?, ?>) obj).getDescriptor());
            }
            if (obj instanceof FilterOutcome) {
                return imageManager.getImageIcon("images/component-types/filter-outcome.png",
                        IconUtils.ICON_SIZE_SMALL);
            }
            if (obj instanceof Table) {
                return imageManager.getImageIcon("images/model/table.png", IconUtils.ICON_SIZE_MEDIUM);
            }
            if (obj instanceof Class) {
                Class<?> cls = (Class<?>) obj;
                if (ReflectionUtils.is(cls, AnalyzerResult.class)) {
                    return imageManager.getImageIcon("images/model/result.png", IconUtils.ICON_SIZE_MEDIUM);
                }
            }
            return imageManager.getImageIcon(IconUtils.STATUS_ERROR);
        }
    });

    DCPanel panel = new DCPanel();
    panel.setPreferredSize(preferredSize);
    panel.setLayout(new BorderLayout());
    panel.add(visualizationViewer, BorderLayout.CENTER);
    return panel;
}

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