Package org.opencastproject.playlists

Class PlaylistService

java.lang.Object

org.opencastproject.playlists.PlaylistService

public class PlaylistService
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected AuthorizationService	authorizationService	The authorization service
protected PlaylistDatabaseService	persistence	Persistent storage
protected SecurityService	securityService	The security service

Constructor Summary

Constructors

Constructor	Description
PlaylistService()

Method Summary

Modifier and Type	Method	Description
void	activate(org.osgi.service.component.ComponentContext cc)
Playlist	addEntry(String playlistId, String contentId, PlaylistEntryType type)	Adds a new entry at the end of a playlist and persists it
JaxbPlaylist	enrich(Playlist playlist)	Enrich each entry of a playlist with information about the content.
List<Playlist>	getAllForAdministrativeRead(Date from, Date to, int limit)
Playlist	getPlaylistById(String id)	Returns a playlist from the database by its id
List<Playlist>	getPlaylists(int limit, int offset)	Get multiple playlists from the database
List<Playlist>	getPlaylists(int limit, int offset, SortCriterion sortCriterion)
Playlist	remove(String playlistId)	Deletes a playlist from the database
Playlist	removeEntry(String playlistId, long entryId)	Removes an entry with the given id from the playlist and persists it
void	setAuthorizationService(AuthorizationService authorizationService)	Callback for setting the authorization service.
void	setPersistence(PlaylistDatabaseService persistence)	Callback to set the playlist database
void	setSecurityService(SecurityService securityService)	OSGi callback to set the security service.
Playlist	update(Playlist playlist)	Persist a new playlist in the database or update an existing one
Playlist	updateEntries(String playlistId, List<PlaylistEntry> playlistEntries)	Replaces the entries in the playlist with the given entries
Playlist	updateWithJson(String id, String json)	Overwrite an existing playlist with a playlist in JSON format.

Methods inherited from class java.lang.Object

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

Field Details

persistence

protected PlaylistDatabaseService persistence

Persistent storage

securityService

protected SecurityService securityService

The security service

authorizationService

protected AuthorizationService authorizationService

The authorization service

Constructor Details

PlaylistService

public PlaylistService()

Method Details

setPersistence

public void setPersistence(PlaylistDatabaseService persistence)

Callback to set the playlist database

Parameters:

persistence - the playlist database

setSecurityService

public void setSecurityService(SecurityService securityService)

OSGi callback to set the security service.

Parameters:

securityService - the securityService to set

setAuthorizationService

public void setAuthorizationService(AuthorizationService authorizationService)

Callback for setting the authorization service.

Parameters:

authorizationService - the authorizationService to set

activate

public void activate(org.osgi.service.component.ComponentContext cc)
              throws Exception

Throws:

Exception

getPlaylistById

public Playlist getPlaylistById(String id)
                         throws NotFoundException,
IllegalStateException,
UnauthorizedException

Returns a playlist from the database by its id

Parameters:

id - playlist id

Returns:

The Playlist belonging to the id

Throws:

NotFoundException - If no playlist with the given id could be found

IllegalStateException - If something went wrong in the database service

UnauthorizedException - If the user does not have read access for the playlist

getPlaylists

public List<Playlist> getPlaylists(int limit,
 int offset)
                            throws IllegalStateException

Get multiple playlists from the database

Parameters:

limit - The maximum amount of playlists to get with one request.

offset - The index of the first result to return.

Returns:

A list of Playlists

Throws:

IllegalStateException - If something went wrong in the database service

getPlaylists

public List<Playlist> getPlaylists(int limit,
 int offset,
 SortCriterion sortCriterion)
                            throws IllegalStateException

Throws:

IllegalStateException

getAllForAdministrativeRead

public List<Playlist> getAllForAdministrativeRead(Date from,
 Date to,
 int limit)
                                           throws IllegalStateException,
UnauthorizedException

Throws:

IllegalStateException

UnauthorizedException

update

public Playlist update(Playlist playlist)
                throws IllegalStateException,
UnauthorizedException,
IllegalArgumentException

Persist a new playlist in the database or update an existing one

Parameters:

playlist - The Playlist to create or update with

Returns:

The updated Playlist

Throws:

IllegalStateException - If something went wrong in the database service

UnauthorizedException - If the user does not have write access for an existing playlist

IllegalArgumentException

updateWithJson

public Playlist updateWithJson(String id,
 String json)
                        throws com.fasterxml.jackson.core.JsonProcessingException,
UnauthorizedException

Overwrite an existing playlist with a playlist in JSON format. Only fields present in the JSON will be overwritten! Conversely, if a field is not present in the JSON, the field in the existing playlist will not change.

Parameters:

id - Identifier of the playlist to update.

json - JSON containing data to update the playlist with.

Returns:

The updated Playlist

Throws:

com.fasterxml.jackson.core.JsonProcessingException

UnauthorizedException

remove

public Playlist remove(String playlistId)
                throws NotFoundException,
IllegalStateException,
UnauthorizedException

Deletes a playlist from the database

Parameters:

playlistId - The playlist identifier

Returns:

The removed Playlist

Throws:

NotFoundException - If no playlist with the given id could be found

IllegalStateException - If something went wrong in the database service

UnauthorizedException - If the user does not have write access for the playlist

updateEntries

public Playlist updateEntries(String playlistId,
 List<PlaylistEntry> playlistEntries)
                       throws NotFoundException,
IllegalStateException,
UnauthorizedException

Replaces the entries in the playlist with the given entries

Parameters:

playlistId - identifier of the playlist to modify

playlistEntries - the new playlist entries

Returns:

Playlist with the new entries

Throws:

NotFoundException - If no playlist with the given id could be found

IllegalStateException - If something went wrong in the database service

UnauthorizedException - If the user does not have write access for the playlist

addEntry

public Playlist addEntry(String playlistId,
 String contentId,
 PlaylistEntryType type)
                  throws NotFoundException,
IllegalStateException,
UnauthorizedException

Adds a new entry at the end of a playlist and persists it

Parameters:

playlistId - The playlist identifier

contentId - content (e.g. mediapacakge) identifier

type - arbitrary string

Returns:

Playlist with the new entry

Throws:

NotFoundException - If no playlist with the given id could be found

IllegalStateException - If something went wrong in the database service

UnauthorizedException - If the user does not have write access for the playlist

removeEntry

public Playlist removeEntry(String playlistId,
 long entryId)
                     throws NotFoundException,
IllegalStateException,
UnauthorizedException

Removes an entry with the given id from the playlist and persists it

Parameters:

playlistId - The playlist identifier

entryId - The entry identifier

Returns:

Playlist without the entry

Throws:

NotFoundException - If no playlist with the given id could be found

IllegalStateException - If something went wrong in the database service

UnauthorizedException - If the user does not have write access for the playlist

enrich

public JaxbPlaylist enrich(Playlist playlist)

Enrich each entry of a playlist with information about the content. Intended to be used by endpoints when returning information about a playlist. Currently only adds publication information for entries of type EVENT.

Parameters:

playlist - The playlist to enrich

Returns:

The serialization class of the playlist, since the added information does not belong to the playlist itself.