info.magnolia.imaging.caching

Class CachingImageStreamer<P>

java.lang.Object

info.magnolia.imaging.AbstractImageStreamer<P>

info.magnolia.imaging.caching.CachingImageStreamer<P>

Type Parameters:

P - type of ParameterProvider's parameter

All Implemented Interfaces:

ImageStreamer<P>

public class CachingImageStreamer<P>
extends AbstractImageStreamer<P>

An ImageStreamer which stores and serves generated images to/from a specific workspace.

Constructor Summary

Constructors

Constructor and Description
CachingImageStreamer(javax.jcr.Session session, CachingStrategy<P> cachingStrategy, ImageStreamer<P> delegate, info.magnolia.context.SystemContext systemContext)

Method Summary

Modifier and Type	Method and Description
protected javax.jcr.Property	fetchFromCache(ImageGenerator<ParameterProvider<P>> generator, ParameterProvider<P> parameterProvider) Gets the binary property (NodeData) for the appropriate image, ready to be served, or null if the image should be regenerated.
protected javax.jcr.Property	generateAndStore(ImageGenerator<ParameterProvider<P>> generator, ParameterProvider<P> parameterProvider)
protected void	serve(javax.jcr.Property binary, ImageResponse imageResponse)
void	serveImage(ImageGenerator<ParameterProvider<P>> generator, ParameterProvider<P> params, ImageResponse imageResponse) Generates an image (if deemed necessary) with the given ImageGenerator and Parameters, streams it to the given ImageResponse.
void	serveImage(ImageGenerator<ParameterProvider<P>> generator, ParameterProvider<P> params, OutputStream out) Deprecated.

Methods inherited from class info.magnolia.imaging.AbstractImageStreamer

getMediaType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CachingImageStreamer

public CachingImageStreamer(javax.jcr.Session session,
                            CachingStrategy<P> cachingStrategy,
                            ImageStreamer<P> delegate,
                            info.magnolia.context.SystemContext systemContext)

Method Detail

serveImage

public void serveImage(ImageGenerator<ParameterProvider<P>> generator,
                       ParameterProvider<P> params,
                       ImageResponse imageResponse)
                throws ImagingException,
                       IOException

Description copied from interface: ImageStreamer

Generates an image (if deemed necessary) with the given ImageGenerator and Parameters, streams it to the given ImageResponse.

Throws:

ImagingException

IOException

serveImage

@Deprecated
public void serveImage(ImageGenerator<ParameterProvider<P>> generator,
                                   ParameterProvider<P> params,
                                   OutputStream out)
                            throws IOException,
                                   ImagingException

Deprecated.

Throws:

IOException

ImagingException

fetchFromCache

protected javax.jcr.Property fetchFromCache(ImageGenerator<ParameterProvider<P>> generator,
                                            ParameterProvider<P> parameterProvider)

Gets the binary property (NodeData) for the appropriate image, ready to be served, or null if the image should be regenerated.

serve

protected void serve(javax.jcr.Property binary,
                     ImageResponse imageResponse)
              throws IOException

Throws:

IOException

generateAndStore

protected javax.jcr.Property generateAndStore(ImageGenerator<ParameterProvider<P>> generator,
                                              ParameterProvider<P> parameterProvider)
                                       throws IOException,
                                              ImagingException

Throws:

IOException

ImagingException