org.silverpeas.viewer
Class AbstractViewerService

java.lang.Object
  org.silverpeas.viewer.AbstractViewerService

Direct Known Subclasses:

DefaultPreviewService, DefaultViewService

public abstract class AbstractViewerService
extends Object

Author:

Yohann Chastagnier

Nested Class Summary

protected class	AbstractViewerService.ViewerProcess<RETURN_VALUE extends Serializable> This class handles the execution of a AbstractViewerService.ViewerTreatment.
protected class	AbstractViewerService.ViewerTreatment<RETURN_VALUE> Inner class handled by

Field Summary

static String

PDF_DOCUMENT_EXTENSION

Constructor Summary

AbstractViewerService()

Method Summary

protected File	changeFileExtension(File file, String fileExtension) Changes the extension of a file
protected File	generateTmpFile(ViewerContext viewerContext, String fileExtension) Generate a tmp file
protected <RETURN_VALUE extends Serializable> AbstractViewerService.ViewerProcess<RETURN_VALUE>	process(String processName, AbstractViewerService.ViewerTreatment<RETURN_VALUE> viewerTreatment) This method permits to start the setting of a AbstractViewerService.ViewerTreatment.

Methods inherited from class java.lang.Object

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

Field Detail

PDF_DOCUMENT_EXTENSION

public static final String PDF_DOCUMENT_EXTENSION

See Also:

Constant Field Values

Constructor Detail

AbstractViewerService

public AbstractViewerService()

Method Detail

generateTmpFile

protected File generateTmpFile(ViewerContext viewerContext,
                               String fileExtension)

Generate a tmp file

Parameters:

fileExtension -

Returns:

changeFileExtension

protected File changeFileExtension(File file,
                                   String fileExtension)

Changes the extension of a file

Parameters:

fileExtension -

Returns:

process

protected <RETURN_VALUE extends Serializable> AbstractViewerService.ViewerProcess<RETURN_VALUE> process(String processName,
                                                                                                        AbstractViewerService.ViewerTreatment<RETURN_VALUE> viewerTreatment)

This method permits to start the setting of a AbstractViewerService.ViewerTreatment.
It manages also a cache mechanism in order to avoid taking too much resources at a same time and also in order to preserve memory space of filesystem.

Type Parameters:

RETURN_VALUE -

Parameters:

processName - the name of the process (preview for example).

viewerTreatment - the treatment to perform.

Returns: