Class PipelineFactory

java.lang.Object
org.apache.xmlgraphics.image.loader.pipeline.PipelineFactory

public class PipelineFactory extends Object
Factory class for image processing pipelines.
  • Field Details

    • log

      protected static final org.apache.commons.logging.Log log
      logger
  • Constructor Details

    • PipelineFactory

      public PipelineFactory(ImageManager manager)
      Main constructor.
      Parameters:
      manager - the ImageManager instance
  • Method Details

    • newImageConverterPipeline

      public ImageProviderPipeline newImageConverterPipeline(Image originalImage, ImageFlavor targetFlavor)
      Creates and returns an ImageProviderPipeline that allows to load an image of the given MIME type and present it in the requested image flavor.
      Parameters:
      originalImage - the original image that serves as the origin point of the conversion
      targetFlavor - the requested image flavor
      Returns:
      an ImageProviderPipeline or null if no suitable pipeline could be assembled
    • newImageConverterPipeline

      public ImageProviderPipeline newImageConverterPipeline(ImageInfo imageInfo, ImageFlavor targetFlavor)
      Creates and returns an ImageProviderPipeline that allows to load an image of the given MIME type and present it in the requested image flavor.
      Parameters:
      imageInfo - the image info object of the original image
      targetFlavor - the requested image flavor
      Returns:
      an ImageProviderPipeline or null if no suitable pipeline could be assembled
    • determineCandidatePipelines

      public ImageProviderPipeline[] determineCandidatePipelines(ImageInfo imageInfo, ImageFlavor targetFlavor)
      Determines all possible pipelines for the given image that can produce the requested target flavor.
      Parameters:
      imageInfo - the image information
      targetFlavor - the target flavor
      Returns:
      the candidate pipelines
    • determineCandidatePipelines

      public ImageProviderPipeline[] determineCandidatePipelines(ImageInfo imageInfo, ImageFlavor[] flavors)
      Finds and returns an array of ImageProviderPipeline instances which can handle the given MIME type and return one of the given ImageFlavors.
      Parameters:
      imageInfo - the image info object
      flavors - the possible target flavors
      Returns:
      an array of pipelines
    • determineCandidatePipelines

      public ImageProviderPipeline[] determineCandidatePipelines(Image sourceImage, ImageFlavor[] flavors)
      Finds and returns an array of ImageProviderPipeline instances which can handle the convert the given Image and return one of the given ImageFlavors.
      Parameters:
      sourceImage - the image to be converted
      flavors - the possible target flavors
      Returns:
      an array of pipelines