Examples with DublinCoreValue org.opencastproject.metadata.dublincore.DublinCoreValue used on opensource projects

Example 1 with DublinCoreValue

use of org.opencastproject.metadata.dublincore.DublinCoreValue in project opencast by opencast.

the class IngestServiceImpl method schedule.

@Override
public void schedule(MediaPackage mediaPackage, String workflowDefinitionID, Map<String, String> properties) throws IllegalStateException, IngestException, NotFoundException, UnauthorizedException, SchedulerException {
    MediaPackageElement[] mediaPackageElements = mediaPackage.getElementsByFlavor(MediaPackageElements.EPISODE);
    if (mediaPackageElements.length != 1) {
        logger.debug("There can be only one (and exactly one) episode dublin core catalog: https://youtu.be/_J3VeogFUOs");
        throw new IngestException("There can be only one (and exactly one) episode dublin core catalog");
    }
    InputStream inputStream;
    DublinCoreCatalog dublinCoreCatalog;
    try {
        inputStream = workingFileRepository.get(mediaPackage.getIdentifier().toString(), mediaPackageElements[0].getIdentifier());
        dublinCoreCatalog = dublinCoreService.load(inputStream);
    } catch (IOException e) {
        throw new IngestException(e);
    }
    EName temporal = new EName(DublinCore.TERMS_NS_URI, "temporal");
    List<DublinCoreValue> periods = dublinCoreCatalog.get(temporal);
    if (periods.size() != 1) {
        logger.debug("There can be only one (and exactly one) period");
        throw new IngestException("There can be only one (and exactly one) period");
    }
    DCMIPeriod period = EncodingSchemeUtils.decodeMandatoryPeriod(periods.get(0));
    if (!period.hasStart() || !period.hasEnd()) {
        logger.debug("A scheduled recording needs to have a start and end.");
        throw new IngestException("A scheduled recording needs to have a start and end.");
    }
    EName createdEName = new EName(DublinCore.TERMS_NS_URI, "created");
    List<DublinCoreValue> created = dublinCoreCatalog.get(createdEName);
    if (created.size() == 0) {
        logger.debug("Created not set");
    } else if (created.size() == 1) {
        Date date = EncodingSchemeUtils.decodeMandatoryDate(created.get(0));
        if (date.getTime() != period.getStart().getTime()) {
            logger.debug("start and created date differ ({} vs {})", date.getTime(), period.getStart().getTime());
            throw new IngestException("Temporal start and created date differ");
        }
    } else {
        logger.debug("There can be only one created date");
        throw new IngestException("There can be only one created date");
    }
    // spatial
    EName spatial = new EName(DublinCore.TERMS_NS_URI, "spatial");
    List<DublinCoreValue> captureAgents = dublinCoreCatalog.get(spatial);
    if (captureAgents.size() != 1) {
        logger.debug("Exactly one capture agent needs to be set");
        throw new IngestException("Exactly one capture agent needs to be set");
    }
    String captureAgent = captureAgents.get(0).getValue();
    // Go through properties
    Map<String, String> agentProperties = new HashMap<>();
    Map<String, String> workflowProperties = new HashMap<>();
    for (String key : properties.keySet()) {
        if (key.startsWith("org.opencastproject.workflow.config.")) {
            workflowProperties.put(key, properties.get(key));
        } else {
            agentProperties.put(key, properties.get(key));
        }
    }
    try {
        schedulerService.addEvent(period.getStart(), period.getEnd(), captureAgent, new HashSet<>(), mediaPackage, workflowProperties, agentProperties, Opt.none(), Opt.none(), "ingest-service");
    } finally {
        for (MediaPackageElement mediaPackageElement : mediaPackage.getElements()) {
            try {
                workingFileRepository.delete(mediaPackage.getIdentifier().toString(), mediaPackageElement.getIdentifier());
            } catch (IOException e) {
                logger.warn("Failed to delete media package element", e);
            }
        }
    }
}

Example 2 with DublinCoreValue

use of org.opencastproject.metadata.dublincore.DublinCoreValue in project opencast by opencast.

the class SeriesWorkflowOperationHandlerTest method testExtraMetadata.

@Test
public void testExtraMetadata() throws WorkflowOperationException {
    final EName otherProperty = new EName(DublinCore.TERMS_NS_URI, "my-custom-property");
    final String otherValue = "foobar";
    // Add extra metadata to the series catalog.
    seriesCatalog.set(DublinCore.PROPERTY_LANGUAGE, "Opencastian");
    seriesCatalog.set(otherProperty, otherValue);
    seriesCatalog.set(DublinCore.PROPERTY_CONTRIBUTOR, Arrays.asList(new DublinCoreValue[] { DublinCoreValue.mk("Mr. Contry Bute"), DublinCoreValue.mk("Mrs. Jane Doe") }));
    // Prepare "copy metadata" property
    String[] extraMetadata = { // Append a full metadata field, with NS
    DublinCore.PROPERTY_LANGUAGE.toString(), // Field without namespace
    DublinCore.PROPERTY_CONTRIBUTOR.getLocalName(), // Field with a namespace different than the default
    otherProperty.toString(), // Field that does not exist in the series catalog
    "does-not-exist" };
    WorkflowInstanceImpl instance = new WorkflowInstanceImpl();
    List<WorkflowOperationInstance> ops = new ArrayList<WorkflowOperationInstance>();
    WorkflowOperationInstanceImpl operation = new WorkflowOperationInstanceImpl("test", OperationState.INSTANTIATED);
    ops.add(operation);
    instance.setOperations(ops);
    instance.setMediaPackage(mp);
    MediaPackage clone = (MediaPackage) mp.clone();
    operation.setConfiguration(SeriesWorkflowOperationHandler.SERIES_PROPERTY, "series1");
    operation.setConfiguration(SeriesWorkflowOperationHandler.ATTACH_PROPERTY, "*");
    operation.setConfiguration(SeriesWorkflowOperationHandler.APPLY_ACL_PROPERTY, "false");
    operation.setConfiguration(SeriesWorkflowOperationHandler.COPY_METADATA_PROPERTY, StringUtils.join(extraMetadata, ", "));
    WorkflowOperationResult result = operationHandler.start(instance, null);
    Assert.assertEquals(Action.CONTINUE, result.getAction());
    MediaPackage resultingMediapackage = result.getMediaPackage();
    // Get episode DublinCore
    DublinCoreCatalog episodeCatalog = DublinCores.read(capturedStream.getValue());
    Assert.assertEquals("series1", resultingMediapackage.getSeries());
    Assert.assertEquals("Series 1", resultingMediapackage.getSeriesTitle());
    Assert.assertEquals(clone.getElements().length + 1, resultingMediapackage.getElements().length);
    // Check the extra metadata were copied into the dublincore (only those present in the series catalog)
    Assert.assertTrue(episodeCatalog.hasValue(DublinCore.PROPERTY_CONTRIBUTOR));
    Assert.assertEquals(seriesCatalog.get(DublinCore.PROPERTY_CONTRIBUTOR), episodeCatalog.get(DublinCore.PROPERTY_CONTRIBUTOR));
    Assert.assertTrue(episodeCatalog.hasValue(DublinCore.PROPERTY_LANGUAGE));
    Assert.assertEquals(seriesCatalog.get(DublinCore.PROPERTY_LANGUAGE), episodeCatalog.get(DublinCore.PROPERTY_LANGUAGE));
    Assert.assertTrue(episodeCatalog.hasValue(otherProperty));
    Assert.assertEquals(seriesCatalog.get(otherProperty), episodeCatalog.get(otherProperty));
    Assert.assertFalse(episodeCatalog.hasValue(new EName(DublinCore.TERMS_NS_URI, "does-not-exist")));
}

Example 3 with DublinCoreValue

use of org.opencastproject.metadata.dublincore.DublinCoreValue in project opencast by opencast.

the class IndexServiceImpl method createEvent.

@Override
public String createEvent(EventHttpServletRequest eventHttpServletRequest) throws ParseException, IOException, MediaPackageException, IngestException, NotFoundException, SchedulerException, UnauthorizedException {
    // Preconditions
    if (eventHttpServletRequest.getAcl().isNone()) {
        throw new IllegalArgumentException("No access control list available to create new event.");
    }
    if (eventHttpServletRequest.getMediaPackage().isNone()) {
        throw new IllegalArgumentException("No mediapackage available to create new event.");
    }
    if (eventHttpServletRequest.getMetadataList().isNone()) {
        throw new IllegalArgumentException("No metadata list available to create new event.");
    }
    if (eventHttpServletRequest.getProcessing().isNone()) {
        throw new IllegalArgumentException("No processing metadata available to create new event.");
    }
    if (eventHttpServletRequest.getSource().isNone()) {
        throw new IllegalArgumentException("No source field metadata available to create new event.");
    }
    // Get Workflow
    String workflowTemplate = (String) eventHttpServletRequest.getProcessing().get().get("workflow");
    if (workflowTemplate == null)
        throw new IllegalArgumentException("No workflow template in metadata");
    // Get Type of Source
    SourceType type = getSourceType(eventHttpServletRequest.getSource().get());
    MetadataCollection eventMetadata = eventHttpServletRequest.getMetadataList().get().getMetadataByAdapter(eventCatalogUIAdapter).get();
    JSONObject sourceMetadata = (JSONObject) eventHttpServletRequest.getSource().get().get("metadata");
    if (sourceMetadata != null && (type.equals(SourceType.SCHEDULE_SINGLE) || type.equals(SourceType.SCHEDULE_MULTIPLE))) {
        try {
            MetadataField<?> current = eventMetadata.getOutputFields().get("location");
            eventMetadata.updateStringField(current, (String) sourceMetadata.get("device"));
        } catch (Exception e) {
            logger.warn("Unable to parse device {}", sourceMetadata.get("device"));
            throw new IllegalArgumentException("Unable to parse device");
        }
    }
    Date currentStartDate = null;
    MetadataField<?> starttime = eventMetadata.getOutputFields().get(DublinCore.PROPERTY_TEMPORAL.getLocalName());
    if (starttime != null && starttime.isUpdated() && starttime.getValue().isSome()) {
        DCMIPeriod period = EncodingSchemeUtils.decodeMandatoryPeriod((DublinCoreValue) starttime.getValue().get());
        currentStartDate = period.getStart();
    }
    MetadataField<?> created = eventMetadata.getOutputFields().get(DublinCore.PROPERTY_CREATED.getLocalName());
    if (created == null || !created.isUpdated() || created.getValue().isNone()) {
        eventMetadata.removeField(created);
        MetadataField<String> newCreated = MetadataUtils.copyMetadataField(created);
        if (currentStartDate != null) {
            newCreated.setValue(EncodingSchemeUtils.encodeDate(currentStartDate, Precision.Second).getValue());
        } else {
            newCreated.setValue(EncodingSchemeUtils.encodeDate(new Date(), Precision.Second).getValue());
        }
        eventMetadata.addField(newCreated);
    }
    // Get presenter usernames for use as technical presenters
    Set<String> presenterUsernames = new HashSet<>();
    Opt<Set<String>> technicalPresenters = updatePresenters(eventMetadata);
    if (technicalPresenters.isSome()) {
        presenterUsernames = technicalPresenters.get();
    }
    eventHttpServletRequest.getMetadataList().get().add(eventCatalogUIAdapter, eventMetadata);
    updateMediaPackageMetadata(eventHttpServletRequest.getMediaPackage().get(), eventHttpServletRequest.getMetadataList().get());
    DublinCoreCatalog dc = getDublinCoreCatalog(eventHttpServletRequest);
    String captureAgentId = null;
    TimeZone tz = null;
    org.joda.time.DateTime start = null;
    org.joda.time.DateTime end = null;
    long duration = 0L;
    Properties caProperties = new Properties();
    RRule rRule = null;
    if (sourceMetadata != null && (type.equals(SourceType.SCHEDULE_SINGLE) || type.equals(SourceType.SCHEDULE_MULTIPLE))) {
        Properties configuration;
        try {
            captureAgentId = (String) sourceMetadata.get("device");
            configuration = captureAgentStateService.getAgentConfiguration((String) sourceMetadata.get("device"));
        } catch (Exception e) {
            logger.warn("Unable to parse device {}: because: {}", sourceMetadata.get("device"), getStackTrace(e));
            throw new IllegalArgumentException("Unable to parse device");
        }
        String durationString = (String) sourceMetadata.get("duration");
        if (StringUtils.isBlank(durationString))
            throw new IllegalArgumentException("No duration in source metadata");
        // Create timezone based on CA's reported TZ.
        String agentTimeZone = configuration.getProperty("capture.device.timezone");
        if (StringUtils.isNotBlank(agentTimeZone)) {
            tz = TimeZone.getTimeZone(agentTimeZone);
            dc.set(DublinCores.OC_PROPERTY_AGENT_TIMEZONE, tz.getID());
        } else {
            // No timezone was present, assume the serve's local timezone.
            tz = TimeZone.getDefault();
            logger.debug("The field 'capture.device.timezone' has not been set in the agent configuration. The default server timezone will be used.");
        }
        org.joda.time.DateTime now = new org.joda.time.DateTime(DateTimeZone.UTC);
        start = now.withMillis(DateTimeSupport.fromUTC((String) sourceMetadata.get("start")));
        end = now.withMillis(DateTimeSupport.fromUTC((String) sourceMetadata.get("end")));
        duration = Long.parseLong(durationString);
        DublinCoreValue period = EncodingSchemeUtils.encodePeriod(new DCMIPeriod(start.toDate(), start.plus(duration).toDate()), Precision.Second);
        String inputs = (String) sourceMetadata.get("inputs");
        caProperties.putAll(configuration);
        dc.set(DublinCore.PROPERTY_TEMPORAL, period);
        caProperties.put(CaptureParameters.CAPTURE_DEVICE_NAMES, inputs);
    }
    if (type.equals(SourceType.SCHEDULE_MULTIPLE)) {
        rRule = new RRule((String) sourceMetadata.get("rrule"));
    }
    Map<String, String> configuration = new HashMap<>();
    if (eventHttpServletRequest.getProcessing().get().get("configuration") != null) {
        configuration = new HashMap<>((JSONObject) eventHttpServletRequest.getProcessing().get().get("configuration"));
    }
    for (Entry<String, String> entry : configuration.entrySet()) {
        caProperties.put(WORKFLOW_CONFIG_PREFIX.concat(entry.getKey()), entry.getValue());
    }
    caProperties.put(CaptureParameters.INGEST_WORKFLOW_DEFINITION, workflowTemplate);
    eventHttpServletRequest.setMediaPackage(authorizationService.setAcl(eventHttpServletRequest.getMediaPackage().get(), AclScope.Episode, eventHttpServletRequest.getAcl().get()).getA());
    MediaPackage mediaPackage;
    switch(type) {
        case UPLOAD:
        case UPLOAD_LATER:
            eventHttpServletRequest.setMediaPackage(updateDublincCoreCatalog(eventHttpServletRequest.getMediaPackage().get(), dc));
            configuration.put("workflowDefinitionId", workflowTemplate);
            WorkflowInstance ingest = ingestService.ingest(eventHttpServletRequest.getMediaPackage().get(), workflowTemplate, configuration);
            return eventHttpServletRequest.getMediaPackage().get().getIdentifier().compact();
        case SCHEDULE_SINGLE:
            mediaPackage = updateDublincCoreCatalog(eventHttpServletRequest.getMediaPackage().get(), dc);
            eventHttpServletRequest.setMediaPackage(mediaPackage);
            try {
                schedulerService.addEvent(start.toDate(), start.plus(duration).toDate(), captureAgentId, presenterUsernames, mediaPackage, configuration, (Map) caProperties, Opt.<Boolean>none(), Opt.<String>none(), SchedulerService.ORIGIN);
            } finally {
                for (MediaPackageElement mediaPackageElement : mediaPackage.getElements()) {
                    try {
                        workspace.delete(mediaPackage.getIdentifier().toString(), mediaPackageElement.getIdentifier());
                    } catch (NotFoundException | IOException e) {
                        logger.warn("Failed to delete media package element", e);
                    }
                }
            }
            return mediaPackage.getIdentifier().compact();
        case SCHEDULE_MULTIPLE:
            List<Period> periods = schedulerService.calculatePeriods(rRule, start.toDate(), end.toDate(), duration, tz);
            Map<String, Period> scheduled = new LinkedHashMap<>();
            scheduled = schedulerService.addMultipleEvents(rRule, start.toDate(), end.toDate(), duration, tz, captureAgentId, presenterUsernames, eventHttpServletRequest.getMediaPackage().get(), configuration, (Map) caProperties, Opt.none(), Opt.none(), SchedulerService.ORIGIN);
            return StringUtils.join(scheduled.keySet(), ",");
        default:
            logger.warn("Unknown source type {}", type);
            throw new IllegalArgumentException("Unknown source type");
    }
}

Example 4 with DublinCoreValue

use of org.opencastproject.metadata.dublincore.DublinCoreValue in project opencast by opencast.

the class ConfigurableSeriesDCCatalogUIAdapter method getFieldValuesFromDublinCoreCatalog.

private void getFieldValuesFromDublinCoreCatalog(DublinCoreMetadataCollection dublinCoreMetadata, Set<String> emptyFields, DublinCoreCatalog dc) {
    for (EName propertyKey : dc.getValues().keySet()) {
        for (String metdataFieldKey : dublinCoreProperties.keySet()) {
            MetadataField<?> metadataField = dublinCoreProperties.get(metdataFieldKey);
            String namespace = DublinCore.TERMS_NS_URI;
            if (metadataField.getNamespace().isSome()) {
                namespace = metadataField.getNamespace().get();
            }
            if (namespace.equalsIgnoreCase(propertyKey.getNamespaceURI()) && metadataField.getInputID().equalsIgnoreCase(propertyKey.getLocalName())) {
                for (DublinCoreValue dublinCoreValue : dc.get(propertyKey)) {
                    emptyFields.remove(metdataFieldKey);
                    try {
                        dublinCoreMetadata.addField(metadataField, dublinCoreValue.getValue(), listProvidersService);
                    } catch (IllegalArgumentException e) {
                        logger.error("Skipping metadata field '{}' because of error: {}", metadataField.getInputID(), ExceptionUtils.getStackTrace(e));
                    }
                }
            }
        }
    }
}

Example 5 with DublinCoreValue

use of org.opencastproject.metadata.dublincore.DublinCoreValue in project opencast by opencast.

the class SchedulerServiceImpl method addMultipleEventInternal.

private Map<String, Period> addMultipleEventInternal(List<Period> periods, String captureAgentId, Set<String> userIds, MediaPackage templateMp, Map<String, String> wfProperties, Map<String, String> caMetadata, String modificationOrigin, Opt<Boolean> optOutStatus, Opt<String> schedulingSource, Opt<String> trxId) throws SchedulerException {
    notNull(periods, "periods");
    requireTrue(periods.size() > 0, "periods");
    notEmpty(captureAgentId, "captureAgentId");
    notNull(userIds, "userIds");
    notNull(templateMp, "mediaPackages");
    notNull(wfProperties, "wfProperties");
    notNull(caMetadata, "caMetadata");
    notEmpty(modificationOrigin, "modificationOrigin");
    notNull(optOutStatus, "optOutStatus");
    notNull(schedulingSource, "schedulingSource");
    notNull(trxId, "trxId");
    Map<String, Period> scheduledEvents = new LinkedHashMap<>();
    try {
        LinkedList<Id> ids = new LinkedList<>();
        AQueryBuilder qb = assetManager.createQuery();
        Predicate p = null;
        // While we don't have a list of IDs equal to the number of periods
        while (ids.size() <= periods.size()) {
            // Create a list of IDs equal to the number of periods, along with a set of AM predicates
            while (ids.size() <= periods.size()) {
                Id id = new IdImpl(UUID.randomUUID().toString());
                ids.add(id);
                Predicate np = qb.mediaPackageId(id.compact());
                // Haha, p = np jokes with the AM query language. Ha. Haha. Ha.  (Sob...)
                if (null == p) {
                    p = np;
                } else {
                    p = p.or(np);
                }
            }
            // Select the list of ids which alread exist.  Hint: this needs to be zero
            AResult result = qb.select(qb.nothing()).where(withOrganization(qb).and(p).and(qb.version().isLatest())).run();
            // If there is conflict, clear the list and start over
            if (result.getTotalSize() > 0) {
                ids.clear();
            }
        }
        Opt<String> seriesId = Opt.nul(StringUtils.trimToNull(templateMp.getSeries()));
        // Get opt out status
        boolean optOut = getOptOutStatus(seriesId, optOutStatus);
        if (trxId.isNone()) {
            // Check for locked transactions
            if (schedulingSource.isSome() && persistence.hasTransaction(schedulingSource.get())) {
                logger.warn("Unable to add events, source '{}' is currently locked due to an active transaction!", schedulingSource.get());
                throw new SchedulerTransactionLockException("Unable to add event, locked source " + schedulingSource.get());
            }
            // Check for conflicting events if not opted out
            if (!optOut) {
                List<MediaPackage> conflictingEvents = findConflictingEvents(periods, captureAgentId, TimeZone.getDefault());
                if (conflictingEvents.size() > 0) {
                    logger.info("Unable to add events, conflicting events found: {}", conflictingEvents);
                    throw new SchedulerConflictException("Unable to add event, conflicting events found");
                }
            }
        }
        // counter for index into the list of mediapackages
        int counter = 0;
        for (Period event : periods) {
            MediaPackage mediaPackage = (MediaPackage) templateMp.clone();
            Date startDate = new Date(event.getStart().getTime());
            Date endDate = new Date(event.getEnd().getTime());
            Id id = ids.get(counter);
            // Get, or make, the DC catalog
            DublinCoreCatalog dc;
            Opt<DublinCoreCatalog> dcOpt = DublinCoreUtil.loadEpisodeDublinCore(workspace, templateMp);
            if (dcOpt.isSome()) {
                dc = dcOpt.get();
                dc = (DublinCoreCatalog) dc.clone();
                // make sure to bind the OC_PROPERTY namespace
                dc.addBindings(XmlNamespaceContext.mk(XmlNamespaceBinding.mk(DublinCores.OC_PROPERTY_NS_PREFIX, DublinCores.OC_PROPERTY_NS_URI)));
            } else {
                dc = DublinCores.mkOpencastEpisode().getCatalog();
            }
            // Set the new media package identifier
            mediaPackage.setIdentifier(id);
            // Update dublincore title and temporal
            String newTitle = dc.getFirst(DublinCore.PROPERTY_TITLE) + String.format(" %0" + Integer.toString(periods.size()).length() + "d", ++counter);
            dc.set(DublinCore.PROPERTY_TITLE, newTitle);
            DublinCoreValue eventTime = EncodingSchemeUtils.encodePeriod(new DCMIPeriod(startDate, endDate), Precision.Second);
            dc.set(DublinCore.PROPERTY_TEMPORAL, eventTime);
            mediaPackage = updateDublincCoreCatalog(mediaPackage, dc);
            mediaPackage.setTitle(newTitle);
            String mediaPackageId = mediaPackage.getIdentifier().compact();
            // Converting from iCal4j DateTime objects to plain Date objects to prevent AMQ issues below
            Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
            cal.setTime(event.getStart());
            Date startDateTime = cal.getTime();
            cal.setTime(event.getEnd());
            Date endDateTime = cal.getTime();
            // Load dublincore and acl for update
            Opt<DublinCoreCatalog> dublinCore = DublinCoreUtil.loadEpisodeDublinCore(workspace, mediaPackage);
            Option<AccessControlList> acl = authorizationService.getAcl(mediaPackage, AclScope.Episode);
            // Get updated agent properties
            Map<String, String> finalCaProperties = getFinalAgentProperties(caMetadata, wfProperties, captureAgentId, seriesId, dublinCore);
            // Persist asset
            String checksum = calculateChecksum(workspace, getEventCatalogUIAdapterFlavors(), startDateTime, endDateTime, captureAgentId, userIds, mediaPackage, dublinCore, wfProperties, finalCaProperties, optOut, acl.toOpt().getOr(new AccessControlList()));
            persistEvent(mediaPackageId, modificationOrigin, checksum, Opt.some(startDateTime), Opt.some(endDateTime), Opt.some(captureAgentId), Opt.some(userIds), Opt.some(mediaPackage), Opt.some(wfProperties), Opt.some(finalCaProperties), Opt.some(optOut), schedulingSource, trxId);
            if (trxId.isNone()) {
                // Send updates
                sendUpdateAddEvent(mediaPackageId, acl.toOpt(), dublinCore, Opt.some(startDateTime), Opt.some(endDateTime), Opt.some(userIds), Opt.some(captureAgentId), Opt.some(finalCaProperties), Opt.some(optOut));
                // Update last modified
                touchLastEntry(captureAgentId);
            }
            scheduledEvents.put(mediaPackageId, event);
            for (MediaPackageElement mediaPackageElement : mediaPackage.getElements()) {
                try {
                    workspace.delete(mediaPackage.getIdentifier().toString(), mediaPackageElement.getIdentifier());
                } catch (NotFoundException | IOException e) {
                    logger.warn("Failed to delete media package element", e);
                }
            }
        }
        return scheduledEvents;
    } catch (SchedulerException e) {
        throw e;
    } catch (Exception e) {
        logger.error("Failed to create events: {}", getStackTrace(e));
        throw new SchedulerException(e);
    }
}