Class ImageWriterRegistry
- java.lang.Object
-
- org.apache.xmlgraphics.image.writer.ImageWriterRegistry
-
public final class ImageWriterRegistry extends java.lang.Object
Registry forImageWriter
implementations.
-
-
Constructor Summary
Constructors Constructor Description ImageWriterRegistry()
Default constructor.ImageWriterRegistry(java.util.Properties preferredOrder)
Special constructor.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static ImageWriterRegistry
getInstance()
ImageWriter
getWriterFor(java.lang.String mime)
Returns an ImageWriter that can be used to encode an image to the requested MIME type.void
register(ImageWriter writer)
Registers a new ImageWriter implementation in the registry.void
register(ImageWriter writer, int priority)
Registers a new ImageWriter implementation with the associated priority in the registry.
-
-
-
Constructor Detail
-
ImageWriterRegistry
public ImageWriterRegistry()
Default constructor. The default preferred order for the image writers is loaded from the resources.
-
ImageWriterRegistry
public ImageWriterRegistry(java.util.Properties preferredOrder)
Special constructor. The preferred order for the image writers can be specified as a Map (for example a Properties file). The entries of the Map consists of fully qualified class or package names as keys and integer numbers as values. Zero (0) is the default priority.- Parameters:
preferredOrder
- the map of order properties used to order the plug-ins
-
-
Method Detail
-
getInstance
public static ImageWriterRegistry getInstance()
- Returns:
- a singleton instance of the ImageWriterRegistry.
-
register
public void register(ImageWriter writer, int priority)
Registers a new ImageWriter implementation with the associated priority in the registry. Higher priorities get preference over lower priorities.- Parameters:
writer
- the ImageWriter instance to register.priority
- the priority of the writer in the registry.- See Also:
register(ImageWriter)
-
register
public void register(ImageWriter writer)
Registers a new ImageWriter implementation in the registry. If an ImageWriter for the same target MIME type has already been registered, it is placed in an array based on priority.- Parameters:
writer
- the ImageWriter instance to register.
-
getWriterFor
public ImageWriter getWriterFor(java.lang.String mime)
Returns an ImageWriter that can be used to encode an image to the requested MIME type.- Parameters:
mime
- the MIME type of the desired output format- Returns:
- a functional ImageWriter instance handling the desired output format or null if none can be found.
-
-