org.apache.clerezza.platform.content.representations.core

Class ThumbnailService

java.lang.Object

org.apache.clerezza.platform.content.representations.core.ThumbnailService

All Implemented Interfaces:

EventListener, org.osgi.framework.BundleListener

@Services(value={@Service(value=java.lang.Object.class),@Service(value=ThumbnailService.class)})
@Property(name="javax.ws.rs",
          boolValue=true)
public class ThumbnailService
extends Object
implements org.osgi.framework.BundleListener

This JAX-RS resource provides a method to retrieve the uri to the thumbnail or a other small representation of a InfoDiscoBit.

Author:

mir

Constructor Summary

Constructors

Constructor and Description
ThumbnailService()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	activate(org.osgi.service.component.ComponentContext context)
void	bundleChanged(org.osgi.framework.BundleEvent be)
protected void	deactivate(org.osgi.service.component.ComponentContext context)
UriRef	getThumbnailUri(UriRef infoBitUri, Integer width, Integer height) Returns the thumbnail uri for a InfoDiscoBit which is located at the uri specified over the query parameter "uri".
UriRef	getThumbnailUri(UriRef infoBitUri, Integer width, Integer height, boolean exact) Returns the thumbnail uri for a InfoDiscoBit which is located at the uri specified over the query parameter "uri".
javax.ws.rs.core.Response	getThumbnailUri(UriRef infoBitUri, Integer width, Integer height, Boolean exact, javax.ws.rs.core.UriInfo uriInfo) Returns the thumbnail uri for a InfoDiscoBit which is located at the uri specified over the query parameter "uri".

Methods inherited from class java.lang.Object

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

Constructor Detail

ThumbnailService

public ThumbnailService()

Method Detail

activate

protected void activate(org.osgi.service.component.ComponentContext context)

deactivate

protected void deactivate(org.osgi.service.component.ComponentContext context)

getThumbnailUri

public javax.ws.rs.core.Response getThumbnailUri(UriRef infoBitUri,
                                        Integer width,
                                        Integer height,
                                        Boolean exact,
                                        @Context
                                        javax.ws.rs.core.UriInfo uriInfo)

Returns the thumbnail uri for a InfoDiscoBit which is located at the uri specified over the query parameter "uri". The thumbnails maximum width and height can optionally be specified over the query parameters "width" and "height". Futhermore there is the optional "exact" parameter, which specifies if the thumbnail must have the exact width and height as specified or not (default is "false"). If more than one acceptable thumbnail is available then the thumbnail uri of the thumbnail with the highest resolution (width * height) is returned. If no thumbnail is available and the logged in user has the write permission for the content graph, then an attempt is made to create the thumbnail on the fly. If this fails or the write permission is missing, then the uri of the icon representing the media type is returned. If also no media type icon is available the uri to default icon is returned.

Parameters:

infoBitUri - the uri of the infoDiscoBit of which the thumbnail uri should be returned

height - the maximum height that the thumbnail has

width - the maximum width that the thumbnail has

exact - boolean that specifies if the return thumbnail should have the exact width and height.

Returns:

getThumbnailUri

public UriRef getThumbnailUri(UriRef infoBitUri,
                     Integer width,
                     Integer height)

Returns the thumbnail uri for a InfoDiscoBit which is located at the uri specified over the query parameter "uri". The thumbnails maximum width and height can optionally be specified over the query parameters "width" and "height". If more than one acceptable thumbnail is available then the thumbnail uri of the thumbnail with the highest resolution (width * height) is returned. If no thumbnail is available and the logged in user has the write permission for the content graph, then an attempt is made to create the thumbnail on the fly. If this fails or the write permission is missing, then the uri of the icon representing the media type is returned. If also no media type icon is available the uri to default icon is returned.

Parameters:

infoBitUri - the uri of the infoDiscoBit of which the thumbnail uri should be returned

height - the maximum height that the thumbnail has

width - the maximum width that the thumbnail has

Returns:

getThumbnailUri

public UriRef getThumbnailUri(UriRef infoBitUri,
                     Integer width,
                     Integer height,
                     boolean exact)

Returns the thumbnail uri for a InfoDiscoBit which is located at the uri specified over the query parameter "uri". The thumbnails maximum width and height can optionally be specified over the query parameters "width" and "height". Futhermore there is the optional "exact" parameter, which specifies if the thumbnail must have the exact width and height as specified or not. If more than one acceptable thumbnail is available then the thumbnail uri of the thumbnail with the highest resolution (width * height) is returned. If no thumbnail is available and the logged in user has the write permission for the content graph, then an attempt is made to create the thumbnail on the fly. If this fails or the write permission is missing, then the uri of the icon representing the media type is returned. If also no media type icon is available the uri to default icon is returned.

Parameters:

infoBitUri - the uri of the infoDiscoBit of which the thumbnail uri should be returned

height - the maximum height that the thumbnail has

width - the maximum width that the thumbnail has

exact - boolean that specifies if the return thumbnail should have the exact width and height.

Returns:

bundleChanged

public void bundleChanged(org.osgi.framework.BundleEvent be)

Specified by:

bundleChanged in interface org.osgi.framework.BundleListener