Examples with SearchResultItem org.opencastproject.search.api.SearchResultItem used on opensource projects

Example 1 with SearchResultItem

use of org.opencastproject.search.api.SearchResultItem in project opencast by opencast.

the class SolrRequester method createSearchResult.

/**
 * Creates a search result from a given solr response.
 *
 * @param query
 *          The solr query.
 * @return The search result.
 * @throws SolrServerException
 *           if the solr server is not working as expected
 */
private SearchResult createSearchResult(final SolrQuery query) throws SolrServerException {
    // Execute the query and try to get hold of a query response
    QueryResponse solrResponse = null;
    try {
        solrResponse = solrServer.query(query);
    } catch (Exception e) {
        throw new SolrServerException(e);
    }
    // Create and configure the query result
    final SearchResultImpl result = new SearchResultImpl(query.getQuery());
    result.setSearchTime(solrResponse.getQTime());
    result.setOffset(solrResponse.getResults().getStart());
    result.setLimit(solrResponse.getResults().size());
    result.setTotal(solrResponse.getResults().getNumFound());
    // Walk through response and create new items with title, creator, etc:
    for (final SolrDocument doc : solrResponse.getResults()) {
        final SearchResultItemImpl item = SearchResultItemImpl.fill(new SearchResultItem() {

            private final String dfltString = null;

            @Override
            public String getId() {
                return Schema.getId(doc);
            }

            /**
             * {@inheritDoc}
             *
             * @see org.opencastproject.search.api.SearchResultItem#getOrganization()
             */
            @Override
            public String getOrganization() {
                return Schema.getOrganization(doc);
            }

            @Override
            public MediaPackage getMediaPackage() {
                MediaPackageBuilder builder = MediaPackageBuilderFactory.newInstance().newMediaPackageBuilder();
                if (serializer != null)
                    builder.setSerializer(serializer);
                String mediaPackageFieldValue = Schema.getOcMediapackage(doc);
                if (mediaPackageFieldValue != null) {
                    try {
                        return builder.loadFromXml(mediaPackageFieldValue);
                    } catch (Exception e) {
                        logger.warn("Unable to read media package from search result", e);
                    }
                }
                return null;
            }

            @Override
            public long getDcExtent() {
                if (getType().equals(SearchResultItemType.AudioVisual)) {
                    Long extent = Schema.getDcExtent(doc);
                    if (extent != null)
                        return extent;
                }
                return -1;
            }

            @Override
            public String getDcTitle() {
                final List<DField<String>> titles = Schema.getDcTitle(doc);
                // try to return the first title without any language information first...
                return head(filter(titles, new Predicate<DField<String>>() {

                    @Override
                    public Boolean apply(DField<String> f) {
                        return f.getSuffix().equals(Schema.LANGUAGE_UNDEFINED);
                    }
                })).map(new Function<DField<String>, String>() {

                    @Override
                    public String apply(DField<String> f) {
                        return f.getValue();
                    }
                }).getOrElse(new Function0<String>() {

                    @Override
                    public String apply() {
                        // ... since none is present return the first arbitrary title
                        return Schema.getFirst(titles, dfltString);
                    }
                });
            }

            @Override
            public String getDcSubject() {
                return Schema.getFirst(Schema.getDcSubject(doc), dfltString);
            }

            @Override
            public String getDcDescription() {
                return Schema.getFirst(Schema.getDcDescription(doc), dfltString);
            }

            @Override
            public String getDcCreator() {
                return Schema.getFirst(Schema.getDcCreator(doc), dfltString);
            }

            @Override
            public String getDcPublisher() {
                return Schema.getFirst(Schema.getDcPublisher(doc), dfltString);
            }

            @Override
            public String getDcContributor() {
                return Schema.getFirst(Schema.getDcContributor(doc), dfltString);
            }

            @Override
            public String getDcAbstract() {
                return null;
            }

            @Override
            public Date getDcCreated() {
                return Schema.getDcCreated(doc);
            }

            @Override
            public Date getDcAvailableFrom() {
                return Schema.getDcAvailableFrom(doc);
            }

            @Override
            public Date getDcAvailableTo() {
                return Schema.getDcAvailableTo(doc);
            }

            @Override
            public String getDcLanguage() {
                return Schema.getDcLanguage(doc);
            }

            @Override
            public String getDcRightsHolder() {
                return Schema.getFirst(Schema.getDcRightsHolder(doc), dfltString);
            }

            @Override
            public String getDcSpatial() {
                return Schema.getFirst(Schema.getDcSpatial(doc), dfltString);
            }

            @Override
            public String getDcTemporal() {
                return null;
            }

            @Override
            public String getDcIsPartOf() {
                return Schema.getDcIsPartOf(doc);
            }

            @Override
            public String getDcReplaces() {
                return Schema.getDcReplaces(doc);
            }

            @Override
            public String getDcType() {
                return Schema.getDcType(doc);
            }

            @Override
            public String getDcAccessRights() {
                return Schema.getFirst(Schema.getDcAccessRights(doc), dfltString);
            }

            @Override
            public String getDcLicense() {
                return Schema.getFirst(Schema.getDcLicense(doc), dfltString);
            }

            @Override
            public String getOcMediapackage() {
                return Schema.getOcMediapackage(doc);
            }

            @Override
            public SearchResultItemType getType() {
                String t = Schema.getOcMediatype(doc);
                return t != null ? SearchResultItemType.valueOf(t) : null;
            }

            @Override
            public String[] getKeywords() {
                if (getType().equals(SearchResultItemType.AudioVisual)) {
                    String k = Schema.getOcKeywords(doc);
                    return k != null ? k.split(" ") : new String[0];
                } else
                    return new String[0];
            }

            @Override
            public String getCover() {
                return Schema.getOcCover(doc);
            }

            @Override
            public Date getModified() {
                return Schema.getOcModified(doc);
            }

            @Override
            public double getScore() {
                return Schema.getScore(doc);
            }

            @Override
            public MediaSegment[] getSegments() {
                if (SearchResultItemType.AudioVisual.equals(getType()))
                    return createSearchResultSegments(doc, query).toArray(new MediaSegmentImpl[0]);
                else
                    return new MediaSegmentImpl[0];
            }
        });
        // Add the item to the result set
        result.addItem(item);
    }
    return result;
}

Example 2 with SearchResultItem

use of org.opencastproject.search.api.SearchResultItem in project opencast by opencast.

the class SeriesUpdatedEventHandler method handleEvent.

public void handleEvent(final SeriesItem seriesItem) {
    // A series or its ACL has been updated. Find any mediapackages with that series, and update them.
    logger.debug("Handling {}", seriesItem);
    String seriesId = seriesItem.getSeriesId();
    // We must be an administrative user to make this query
    final User prevUser = securityService.getUser();
    final Organization prevOrg = securityService.getOrganization();
    try {
        securityService.setUser(SecurityUtil.createSystemUser(systemAccount, prevOrg));
        SearchQuery q = new SearchQuery().withSeriesId(seriesId);
        SearchResult result = searchService.getForAdministrativeRead(q);
        for (SearchResultItem item : result.getItems()) {
            MediaPackage mp = item.getMediaPackage();
            Organization org = organizationDirectoryService.getOrganization(item.getOrganization());
            securityService.setOrganization(org);
            // to the distribution channels as well
            if (SeriesItem.Type.UpdateAcl.equals(seriesItem.getType())) {
                // Build a new XACML file for this mediapackage
                Attachment fileRepoCopy = authorizationService.setAcl(mp, AclScope.Series, seriesItem.getAcl()).getB();
                // Distribute the updated XACML file
                Job distributionJob = distributionService.distribute(CHANNEL_ID, mp, fileRepoCopy.getIdentifier());
                JobBarrier barrier = new JobBarrier(null, serviceRegistry, distributionJob);
                Result jobResult = barrier.waitForJobs();
                if (jobResult.getStatus().get(distributionJob).equals(FINISHED)) {
                    mp.remove(fileRepoCopy);
                    mp.add(getFromXml(serviceRegistry.getJob(distributionJob.getId()).getPayload()));
                } else {
                    logger.error("Unable to distribute XACML {}", fileRepoCopy.getIdentifier());
                    continue;
                }
            }
            // Update the series dublin core
            if (SeriesItem.Type.UpdateCatalog.equals(seriesItem.getType())) {
                DublinCoreCatalog seriesDublinCore = seriesItem.getMetadata();
                mp.setSeriesTitle(seriesDublinCore.getFirst(DublinCore.PROPERTY_TITLE));
                // Update the series dublin core
                Catalog[] seriesCatalogs = mp.getCatalogs(MediaPackageElements.SERIES);
                if (seriesCatalogs.length == 1) {
                    Catalog c = seriesCatalogs[0];
                    String filename = FilenameUtils.getName(c.getURI().toString());
                    URI uri = workspace.put(mp.getIdentifier().toString(), c.getIdentifier(), filename, dublinCoreService.serialize(seriesDublinCore));
                    c.setURI(uri);
                    // setting the URI to a new source so the checksum will most like be invalid
                    c.setChecksum(null);
                    // Distribute the updated series dc
                    Job distributionJob = distributionService.distribute(CHANNEL_ID, mp, c.getIdentifier());
                    JobBarrier barrier = new JobBarrier(null, serviceRegistry, distributionJob);
                    Result jobResult = barrier.waitForJobs();
                    if (jobResult.getStatus().get(distributionJob).equals(FINISHED)) {
                        mp.remove(c);
                        mp.add(getFromXml(serviceRegistry.getJob(distributionJob.getId()).getPayload()));
                    } else {
                        logger.error("Unable to distribute series catalog {}", c.getIdentifier());
                        continue;
                    }
                }
            }
            // Remove the series catalog and isPartOf from episode catalog
            if (SeriesItem.Type.Delete.equals(seriesItem.getType())) {
                mp.setSeries(null);
                mp.setSeriesTitle(null);
                boolean retractSeriesCatalog = retractSeriesCatalog(mp);
                boolean updateEpisodeCatalog = updateEpisodeCatalog(mp);
                if (!retractSeriesCatalog || !updateEpisodeCatalog)
                    continue;
            }
            // Update the search index with the modified mediapackage
            Job searchJob = searchService.add(mp);
            JobBarrier barrier = new JobBarrier(null, serviceRegistry, searchJob);
            barrier.waitForJobs();
        }
    } catch (SearchException e) {
        logger.warn("Unable to find mediapackages in search: ", e.getMessage());
    } catch (UnauthorizedException e) {
        logger.warn(e.getMessage());
    } catch (MediaPackageException e) {
        logger.warn(e.getMessage());
    } catch (ServiceRegistryException e) {
        logger.warn(e.getMessage());
    } catch (NotFoundException e) {
        logger.warn(e.getMessage());
    } catch (IOException e) {
        logger.warn(e.getMessage());
    } catch (DistributionException e) {
        logger.warn(e.getMessage());
    } finally {
        securityService.setOrganization(prevOrg);
        securityService.setUser(prevUser);
    }
}

Example 3 with SearchResultItem

use of org.opencastproject.search.api.SearchResultItem in project opencast by opencast.

the class SearchServiceImplTest method testAddSimpleMediaPackage.

/**
 * Adds a simple media package that has a dublin core for the episode only.
 */
@Test
public void testAddSimpleMediaPackage() throws Exception {
    MediaPackage mediaPackage = getMediaPackage("/manifest-simple.xml");
    // Make sure our mocked ACL has the read and write permission
    acl.getEntries().add(new AccessControlEntry(ROLE_STUDENT, READ.toString(), true));
    acl.getEntries().add(new AccessControlEntry(ROLE_STUDENT, WRITE.toString(), true));
    // Add the media package to the search index
    Job job = service.add(mediaPackage);
    JobBarrier barrier = new JobBarrier(null, serviceRegistry, 1000, job);
    barrier.waitForJobs();
    assertEquals("Job to add mediapckage did not finish", Job.Status.FINISHED, job.getStatus());
    // Make sure it's properly indexed and returned
    SearchQuery q = new SearchQuery();
    q.includeEpisodes(true);
    q.includeSeries(false);
    q.withId("10.0000/1");
    assertEquals(1, service.getByQuery(q).size());
    q = new SearchQuery();
    q.includeEpisodes(true);
    q.includeSeries(false);
    assertEquals(1, service.getByQuery(q).size());
    // Test for various fields
    q = new SearchQuery();
    q.includeEpisodes(true);
    q.includeSeries(false);
    q.withId("10.0000/1");
    SearchResult result = service.getByQuery(q);
    assertEquals(1, result.getTotalSize());
    SearchResultItem resultItem = result.getItems()[0];
    assertNotNull(resultItem.getMediaPackage());
    assertEquals(1, resultItem.getMediaPackage().getCatalogs().length);
}

Example 4 with SearchResultItem

use of org.opencastproject.search.api.SearchResultItem in project opencast by opencast.

the class AbstractFeedGenerator method createFeed.

/**
 * {@inheritDoc}
 */
public final Feed createFeed(Feed.Type type, String[] query, int size, Organization organization) {
    logger.debug("Started to create {} feed", type);
    SearchResult result = null;
    if (type == null)
        throw new IllegalArgumentException("Feed type must not be null");
    if (size <= 0) {
        logger.trace("Using the feed's configured size of {}", this.size);
        size = this.size;
    }
    // Check if the feed generator is correctly set up
    if (uri == null)
        throw new IllegalStateException("Feed uri (feed.uri) must be configured");
    if (name == null)
        throw new IllegalStateException("Feed name (feed.name) must be configured");
    if (getHome(organization) == null)
        throw new IllegalStateException("Feed url (feed.home) must be configured");
    if (getLinkTemplate(organization) == null)
        throw new IllegalStateException("Feed link template (feed.entry) must be configured");
    // Have the concrete implementation load the feed data
    result = loadFeedData(type, query, size, DEFAULT_OFFSET);
    if (result == null) {
        logger.debug("Cannot retrieve solr result for feed '{}' with query '{}'", type.toString(), query);
        return null;
    }
    // Create the feed
    Feed f = createFeed(type, getIdentifier(), new ContentImpl(getName()), new ContentImpl(getDescription()), getFeedLink(organization));
    f.setEncoding(ENCODING);
    // Set iTunes tags
    ITunesFeedExtension iTunesFeed = new ITunesFeedExtension();
    f.addModule(iTunesFeed);
    if (cover != null)
        f.setImage(new ImageImpl(cover, "Feed Image"));
    // Check if a default format has been specified
    // TODO: Parse flavor and set member variable rssTrackFlavor
    // String rssFlavor = query.length > 1 ? query[query.length - 1] : null;
    // Iterate over the feed data and create the entries
    int itemCount = 0;
    for (SearchResultItem resultItem : result.getItems()) {
        try {
            if (resultItem.getType().equals(SearchResultItemType.Series))
                addSeries(f, query, resultItem, organization);
            else
                addEpisode(f, query, resultItem, organization);
        } catch (Throwable t) {
            logger.error("Error creating entry with id {} for feed {}", resultItem.getId(), this, t);
        }
        itemCount++;
        if (itemCount >= size)
            break;
    }
    return f;
}