com.wewebu.service.rendition.impl

Class OwAbstractRenditionService

java.lang.Object

com.wewebu.service.rendition.impl.OwAbstractRenditionService

All Implemented Interfaces:

OwRenditionService

Direct Known Subclasses:

OwNoRenditionService

public abstract class OwAbstractRenditionService
extends Object
implements OwRenditionService

Abstract implementation of OwRendtionService, with default implementations throwing exception. Derived classes can override only required methods, and avoid the thrown exceptions.

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All rights reserved.

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Since:

4.2.0.0

Constructor Summary

Constructors

Constructor and Description
OwAbstractRenditionService()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canCreateRendition(OwObject obj, String type) Capability check for creation of rendition.
void	createRendition(OwObject obj, String type) Trigger a generation of a Rendition for specific object. Before calling this method, verify that capability is available through OwRenditionService.canCreateRendition(OwObject, String).
InputStream	getRenditionStream(OwObject obj, String type) Retrieve the stream for specific type and object.
boolean	hasRendition(OwObject obj, String type) Has Rendition representation for such object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.wewebu.service.rendition.OwRenditionService

getRenditionMimeType

Constructor Detail

OwAbstractRenditionService

public OwAbstractRenditionService()

Method Detail

getRenditionStream

public InputStream getRenditionStream(OwObject obj,
                             String type)
                               throws IOException,
                                      OwException

Description copied from interface: OwRenditionService

Retrieve the stream for specific type and object.

Specified by:

getRenditionStream in interface OwRenditionService

Parameters:

obj - OwObject from whom a rendition is provided

type - String MIME or Rendition type

Returns:

InputStream of rendition representation

Throws:

IOException - if could not access/retrieve stream

OwException - in other cases not matching IO problems

hasRendition

public boolean hasRendition(OwObject obj,
                   String type)

Description copied from interface: OwRenditionService

Has Rendition representation for such object.

Specified by:

hasRendition in interface OwRenditionService

Parameters:

obj - OwObject

type - String

Returns:

boolean true if renditions are available for object

createRendition

public void createRendition(OwObject obj,
                   String type)
                     throws OwException

Description copied from interface: OwRenditionService

Trigger a generation of a Rendition for specific object.
Before calling this method, verify that capability is available through OwRenditionService.canCreateRendition(OwObject, String).

Specified by:

createRendition in interface OwRenditionService

Parameters:

obj - OwObject

type - String

Throws:

OwException

canCreateRendition

public boolean canCreateRendition(OwObject obj,
                         String type)
                           throws OwException

Description copied from interface: OwRenditionService

Capability check for creation of rendition.

Specified by:

canCreateRendition in interface OwRenditionService

Parameters:

obj - OwObject

type - String rendition type or MIME

Returns:

true if a rendition can be created for the given object

Throws:

OwException