Package org.apache.xmlgraphics.image.loader.pipeline

Examples of org.apache.xmlgraphics.image.loader.pipeline.ImageProviderPipeline

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        ImageInfo info = manager.preloadImage(uri, sessionContext);
        assertNotNull("ImageInfo must not be null", info);

        ImageLoader loader = new ImageLoaderImageIO(ImageFlavor.RENDERED_IMAGE);
        ImageProviderPipeline pipeline = new ImageProviderPipeline(manager.getCache(), loader);
        pipeline.addConverter(new ImageConverterRendered2PNG());

        Image img = pipeline.execute(info, null, sessionContext);
        assertNotNull("Image must not be null", img);
        assertEquals(ImageFlavor.RAW_PNG, img.getFlavor());
        assertTrue(img instanceof ImageRawStream);

        //Original MIME type stays the same, but the flavor MIME changes
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        ImageSessionContext sessionContext = imageContext.newSessionContext();
        ImageManager manager = imageContext.getImageManager();

        Image original = createG2DImage();

        ImageProviderPipeline pipeline = new ImageProviderPipeline(manager.getCache(), null);
        pipeline.addConverter(new ImageConverterG2D2Bitmap());
        pipeline.addConverter(new ImageConverterBuffered2Rendered());
        pipeline.addConverter(new ImageConverterRendered2PNG());

        Image img = pipeline.execute(original.getInfo(), original, null,
                sessionContext);
        assertNotNull("Image must not be null", img);
        assertEquals(ImageFlavor.RAW_PNG, img.getFlavor());
        assertTrue(img instanceof ImageRawStream);
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                ImageSessionContext session)
            throws ImageException, IOException {
        hints = prepareHints(hints, session);

        Image img = null;
        ImageProviderPipeline pipeline = getPipelineFactory().newImageConverterPipeline(
                info, flavor);
        if (pipeline != null) {
            img = pipeline.execute(info, hints, session);
        }
        if (img == null) {
            throw new ImageException(
                    "Cannot load image (no suitable loader/converter combination available) for "
                        + info);
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        hints = prepareHints(hints, session);

        Image img = null;
        ImageProviderPipeline[] candidates = getPipelineFactory().determineCandidatePipelines(
                info, flavors);
        ImageProviderPipeline pipeline = choosePipeline(candidates);

        if (pipeline != null) {
            img = pipeline.execute(info, hints, session);
        }
        if (img == null) {
            throw new ImageException(
                    "Cannot load image (no suitable loader/converter combination available) for "
                            + info);
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                return image;
            }
        }
        ImageProviderPipeline[] candidates = getPipelineFactory().determineCandidatePipelines(
                image, flavors);
        ImageProviderPipeline pipeline = choosePipeline(candidates);

        if (pipeline != null) {
            img = pipeline.execute(info, image, hints, null);
        }
        if (img == null) {
            throw new ImageException(
                    "Cannot convert image " + image
                    + " (no suitable converter combination available)");
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     * Chooses the best {@link ImageProviderPipeline} from a set of candidates.
     * @param candidates the candidates
     * @return the best pipeline
     */
    public ImageProviderPipeline choosePipeline(ImageProviderPipeline[] candidates) {
        ImageProviderPipeline pipeline = null;
        int minPenalty = Integer.MAX_VALUE;
        int count = candidates.length;
        if (log.isTraceEnabled()) {
            log.trace("Candidate Pipelines:");
            for (int i = 0; i < count; i++) {
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        ImageFlavor[] inlineFlavors = determineSupportedImageFlavors(renderingContext);
        ImageManager manager = renderingContext.getUserAgent().getFactory().getImageManager();
        ImageProviderPipeline[] inlineCandidates
            = manager.getPipelineFactory().determineCandidatePipelines(
                    info, inlineFlavors);
        ImageProviderPipeline inlineChoice = manager.choosePipeline(inlineCandidates);
        ImageFlavor inlineFlavor = (inlineChoice != null
                ? inlineChoice.getTargetFlavor() : null);

        //Create a rendering context for form creation
        PSRenderingContext formContext = renderingContext.toFormContext();

        //Investigate choice for form mode
        ImageFlavor[] formFlavors = determineSupportedImageFlavors(formContext);
        ImageProviderPipeline[] formCandidates
            = manager.getPipelineFactory().determineCandidatePipelines(
                    info, formFlavors);
        ImageProviderPipeline formChoice = manager.choosePipeline(formCandidates);
        ImageFlavor formFlavor = (formChoice != null ? formChoice.getTargetFlavor() : null);

        //Inline if form is not supported or if a better choice is available with inline mode
        return formFlavor == null || !formFlavor.equals(inlineFlavor);
    }
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Related Classes of org.apache.xmlgraphics.image.loader.pipeline.ImageProviderPipeline

  • org.apache.fop.render.ps.PSImageUtils
  • org.apache.fop.render.ps.PSRenderer
  • org.apache.xmlgraphics.image.loader.Image
  • org.apache.xmlgraphics.image.loader.ImageFlavor
  • org.apache.xmlgraphics.image.loader.ImageManager
  • org.apache.xmlgraphics.image.loader.ImagePipelineTestCase
  • org.apache.xmlgraphics.image.loader.impl.ImageRawStream
  • org.apache.xmlgraphics.image.loader.PipelineFactoryTestCase
  • org.apache.xmlgraphics.image.loader.spi.ImageConverter
  • org.apache.xmlgraphics.image.loader.util.Penalty
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