Package org.opencastproject.elasticsearch.index

Class ElasticsearchIndex

java.lang.Object

org.opencastproject.elasticsearch.impl.AbstractElasticsearchIndex

org.opencastproject.elasticsearch.index.ElasticsearchIndex

All Implemented Interfaces:

org.opencastproject.elasticsearch.api.SearchIndex

public class ElasticsearchIndex
extends org.opencastproject.elasticsearch.impl.AbstractElasticsearchIndex

An index implementation based on ElasticSearch that serves the Admin UI API and the External API with data aggregated from multiple services.

Field Summary

Fields inherited from class org.opencastproject.elasticsearch.impl.AbstractElasticsearchIndex

ELASTICSEARCH_PASSWORD_KEY, ELASTICSEARCH_SERVER_HOSTNAME_KEY, ELASTICSEARCH_SERVER_PORT_KEY, ELASTICSEARCH_SERVER_SCHEME_KEY, ELASTICSEARCH_USERNAME_KEY, indexSettingsPath

Constructor Summary

Constructors

Constructor	Description
ElasticsearchIndex()

Method Summary

Modifier and Type	Method	Description
void	activate(org.osgi.framework.BundleContext bundleContext, Map<String,Object> properties)	OSGi callback to activate this component instance.
Optional<Event>	addOrUpdateEvent(String id, Function<Optional<Event>,Optional<Event>> updateFunction, String orgId, org.opencastproject.security.api.User user)	Adds or updates the event in the search index.
Optional<Series>	addOrUpdateSeries(String id, Function<Optional<Series>,Optional<Series>> updateFunction, String orgId, org.opencastproject.security.api.User user)	Adds or updates the series in the search index.
void	bulkEventUpdate(List<Event> eventList)	Adds the recording events to the search index or updates it accordingly if it is there.
void	bulkSeriesUpdate(List<Series> seriesList)	Add or update a range of series in the search index.
void	deactivate()	OSGi callback to deactivate this component.
boolean	deleteEvent(String eventId, String orgId)	Delete event from index.
boolean	deleteSeries(String seriesId, String orgId)	Delete series from index.
org.opencastproject.elasticsearch.api.SearchResult<Event>	getByQuery(EventSearchQuery query)
org.opencastproject.elasticsearch.api.SearchResult<Series>	getByQuery(SeriesSearchQuery query)
String[]	getDocumentTypes()
Optional<Event>	getEvent(String mediaPackageId, String organization, org.opencastproject.security.api.User user)	Loads the event from the search index if it exists.
Optional<Series>	getSeries(String seriesId, String organization, org.opencastproject.security.api.User user)	Loads the series from the search index if it exists.
void	modified(Map<String,Object> properties)	OSGi callback for configuration changes.
void	setListProvidersService(org.opencastproject.list.api.ListProvidersService listProvidersService)
void	unsetListProvidersService(org.opencastproject.list.api.ListProvidersService listProvidersService)

Methods inherited from class org.opencastproject.elasticsearch.impl.AbstractElasticsearchIndex

activate, bulkUpdate, clear, close, delete, executeQuery, getClient, getIndexName, getIndexVersion, getSearchRequest, getSubIndexIdentifier, getTermsForField, getTotalHits, init, update

Methods inherited from class java.lang.Object

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

Constructor Details

ElasticsearchIndex

public ElasticsearchIndex()

Method Details

setListProvidersService

public void setListProvidersService(org.opencastproject.list.api.ListProvidersService listProvidersService)

unsetListProvidersService

public void unsetListProvidersService(org.opencastproject.list.api.ListProvidersService listProvidersService)

activate

public void activate(org.osgi.framework.BundleContext bundleContext,
 Map<String,Object> properties)
              throws org.osgi.service.component.ComponentException

OSGi callback to activate this component instance.

Parameters:

bundleContext - The bundle context

properties - The configuration

Throws:

org.osgi.service.component.ComponentException - If the search index cannot be initialized

deactivate

public void deactivate()
                throws IOException

OSGi callback to deactivate this component.

Throws:

IOException - If closing the index fails

modified

public void modified(Map<String,Object> properties)

OSGi callback for configuration changes.

Overrides:

modified in class org.opencastproject.elasticsearch.impl.AbstractElasticsearchIndex

Parameters:

properties - The configuration

getDocumentTypes

public String[] getDocumentTypes()

Specified by:

getDocumentTypes in class org.opencastproject.elasticsearch.impl.AbstractElasticsearchIndex

See Also:

• AbstractElasticsearchIndex.getDocumentTypes()

getEvent

public Optional<Event> getEvent(String mediaPackageId,
 String organization,
 org.opencastproject.security.api.User user)
                         throws org.opencastproject.elasticsearch.api.SearchIndexException

Loads the event from the search index if it exists.

Parameters:

mediaPackageId - The media package identifier

organization - The organization

user - The user

Returns:

the event (optional)

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - If querying the search index fails

IllegalStateException - If multiple events with the same identifier are found

getSeries

public Optional<Series> getSeries(String seriesId,
 String organization,
 org.opencastproject.security.api.User user)
                           throws org.opencastproject.elasticsearch.api.SearchIndexException

Loads the series from the search index if it exists.

Parameters:

seriesId - The series identifier

organization - The organization

user - The user

Returns:

the series (optional)

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - If querying the search index fails

IllegalStateException - If multiple series with the same identifier are found

addOrUpdateEvent

public Optional<Event> addOrUpdateEvent(String id,
 Function<Optional<Event>,Optional<Event>> updateFunction,
 String orgId,
 org.opencastproject.security.api.User user)
                                 throws org.opencastproject.elasticsearch.api.SearchIndexException

Adds or updates the event in the search index. Uses a locking mechanism to avoid issues like Lost Update.

Parameters:

id - The id of the event to update

updateFunction - The function that does the actual updating

orgId - The organization the event belongs to

user - The user

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - Thrown if unable to update the event.

bulkEventUpdate

public void bulkEventUpdate(List<Event> eventList)
                     throws org.opencastproject.elasticsearch.api.SearchIndexException

Adds the recording events to the search index or updates it accordingly if it is there.

Parameters:

eventList - The events to update

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - If the events cannot be added or updated

addOrUpdateSeries

public Optional<Series> addOrUpdateSeries(String id,
 Function<Optional<Series>,Optional<Series>> updateFunction,
 String orgId,
 org.opencastproject.security.api.User user)
                                   throws org.opencastproject.elasticsearch.api.SearchIndexException

Adds or updates the series in the search index. Uses a locking mechanism to avoid issues like Lost Update.

Parameters:

id - The id of the series to add

updateFunction - The function that does the actual updating

orgId - The organization the series belongs to

user - The user

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - Thrown if unable to add or update the series.

bulkSeriesUpdate

public void bulkSeriesUpdate(List<Series> seriesList)
                      throws org.opencastproject.elasticsearch.api.SearchIndexException

Add or update a range of series in the search index.

Parameters:

seriesList - The series to update

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - If the series cannot be added or updated

deleteEvent

public boolean deleteEvent(String eventId,
 String orgId)
                    throws org.opencastproject.elasticsearch.api.SearchIndexException

Delete event from index.

Parameters:

eventId - The event identifier

orgId - The organization id

Returns:

true if it was deleted, false if it couldn't be found

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - If there was an error during deletion

deleteSeries

public boolean deleteSeries(String seriesId,
 String orgId)
                     throws org.opencastproject.elasticsearch.api.SearchIndexException

Delete series from index.

Parameters:

seriesId - The series identifier

orgId - The organization id

Returns:

true if it was deleted, false if it couldn't be found

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - If there was an error during deletion

getByQuery

public org.opencastproject.elasticsearch.api.SearchResult<Event> getByQuery(EventSearchQuery query)
                                                                     throws org.opencastproject.elasticsearch.api.SearchIndexException

Parameters:

query - The query to use to retrieve the events that match the query

Returns:

SearchResult collection of Event from a query.

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - Thrown if there is an error getting the results.

getByQuery

public org.opencastproject.elasticsearch.api.SearchResult<Series> getByQuery(SeriesSearchQuery query)
                                                                      throws org.opencastproject.elasticsearch.api.SearchIndexException

Parameters:

query - The query to use to retrieve the series that match the query

Returns:

SearchResult collection of Series from a query.

Throws:

org.opencastproject.elasticsearch.api.SearchIndexException - Thrown if there is an error getting the results.