Examples of org.apache.xmlgraphics.image.loader.pipeline.PipelineFactory.determineCandidatePipelines()

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

Class org.apache.xmlgraphics.image.loader.pipeline.PipelineFactory

Examples of org.apache.xmlgraphics.image.loader.pipeline.PipelineFactory.determineCandidatePipelines()

org.apache.xmlgraphics.image.loader.pipeline.PipelineFactory.determineCandidatePipelines()
Finds and returns an array of {@link ImageProviderPipeline} instances which can handlethe given MIME type and return one of the given {@link ImageFlavor}s. @param imageInfo the image info object @param flavors the possible target flavors @return an array of pipelines

        }
        if (pipeline.toString().indexOf("ImageConverterBitmap2G2D") < 0) {
            fail("Chose the wrong pipeline: " + pipeline.toString());
        }


        ImageProviderPipeline[] candidates = pFactory.determineCandidatePipelines(
                imageInfo, new ImageFlavor[] {targetFlavor});
        assertEquals(1, candidates.length);


        //Now add another implementation that poses as TIFF loader
        imageContext.getImageManager().getRegistry().registerLoaderFactory(

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        //Now add another implementation that poses as TIFF loader
        imageContext.getImageManager().getRegistry().registerLoaderFactory(
                new MockImageLoaderFactoryTIFF());


        candidates = pFactory.determineCandidatePipelines(
                imageInfo, targetFlavor);
        assertEquals(3, candidates.length);
        //3 because the mock impl provides Buffered- and RenderedImage capabilities


        pipeline = pFactory.newImageConverterPipeline(imageInfo, targetFlavor);

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        //We want either a G2D image or a raw CCITT image
        ImageFlavor[] targetFlavors = new ImageFlavor[] {
                ImageFlavor.GRAPHICS2D, ImageFlavor.RAW_CCITTFAX};


        ImageProviderPipeline[] candidates = pFactory.determineCandidatePipelines(
                imageInfo, targetFlavors);
        assertNotNull(candidates);
        assertEquals(2, candidates.length);


        ImageProviderPipeline pipeline = manager.choosePipeline(candidates);

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        }


        //Now, we set this to a multi-strip TIFF which should disable the raw loader
        imageInfo.getCustomObjects().put("TIFF_STRIP_COUNT", new Integer(7));


        candidates = pFactory.determineCandidatePipelines(
                imageInfo, targetFlavors);
        assertNotNull(candidates);
        assertEquals(1, candidates.length);


        pipeline = manager.choosePipeline(candidates);

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        //We want either a G2D image or a raw CCITT image
        ImageFlavor[] targetFlavors = new ImageFlavor[] {
                ImageFlavor.GRAPHICS2D, ImageFlavor.RAW_CCITTFAX};


        ImageProviderPipeline[] candidates = pFactory.determineCandidatePipelines(
                imageInfo, targetFlavors);
        assertNotNull(candidates);
        assertEquals(2, candidates.length);


        ImageProviderPipeline pipeline = manager.choosePipeline(candidates);

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        //Now set an infinite penalty making the solution ineligible
        registry.setAdditionalPenalty(ImageLoaderRawCCITTFax.class.getName(),
                Penalty.INFINITE_PENALTY);


        candidates = pFactory.determineCandidatePipelines(imageInfo, targetFlavors);
        assertNotNull(candidates);
        assertEquals(1, candidates.length);
        //While earlier 2 candidates were returned, here we only get 1 because of the infinite
        //penalty.
    }

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