Class CompositeImageLoader

java.lang.Object
org.apache.xmlgraphics.image.loader.impl.AbstractImageLoader
org.apache.xmlgraphics.image.loader.impl.CompositeImageLoader
All Implemented Interfaces:
ImageLoader

public class CompositeImageLoader extends AbstractImageLoader
Composite ImageLoader implementation in order to provide fallbacks when one ImageLoader fails due to some limitation.
  • Field Details

    • log

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

    • CompositeImageLoader

      public CompositeImageLoader(ImageLoader[] loaders)
      Main constructor.
      Parameters:
      loaders - the contained image loaders
  • Method Details

    • getTargetFlavor

      public ImageFlavor getTargetFlavor()
      Returns the image flavor that is returned by this ImageLoader implementation.
      Returns:
      the target image flavor
    • getUsagePenalty

      public int getUsagePenalty()
      Returns the penalty assigned to using this image loader. The value is used to select the best processing chain for images.
      Specified by:
      getUsagePenalty in interface ImageLoader
      Overrides:
      getUsagePenalty in class AbstractImageLoader
      Returns:
      the usage penalty (must be a non-negative integer)
    • loadImage

      public Image loadImage(ImageInfo info, Map hints, ImageSessionContext session) throws ImageException, IOException
      Loads and returns an image.
      Parameters:
      info - the image info object indicating the image
      hints - a Map of hints that can be used by implementations to customize the loading process (may be null).
      session - the session context
      Returns:
      the fully loaded image
      Throws:
      ImageException - if an error occurs while loading the image
      IOException - if an I/O error occurs while loading the image
    • toString

      public String toString()
      Overrides:
      toString in class Object