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

Example 1 with MetadataField

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

the class EventHttpServletRequest method deserializeMetadataList.

/**
 * Change the simplified fields of key values provided to the external api into a {@link MetadataList}.
 *
 * @param json
 *          The json string that contains an array of metadata field lists for the different catalogs.
 * @param startDatePattern
 *          The pattern to use to parse the start date from the json payload.
 * @param startTimePattern
 *          The pattern to use to parse the start time from the json payload.
 * @return A {@link MetadataList} with the fields populated with the values provided.
 * @throws ParseException
 *           Thrown if unable to parse the json string.
 * @throws NotFoundException
 *           Thrown if unable to find the catalog or field that the json refers to.
 */
protected static MetadataList deserializeMetadataList(String json, List<EventCatalogUIAdapter> catalogAdapters, Opt<String> startDatePattern, Opt<String> startTimePattern) throws ParseException, NotFoundException, java.text.ParseException {
    MetadataList metadataList = new MetadataList();
    JSONParser parser = new JSONParser();
    JSONArray jsonCatalogs = (JSONArray) parser.parse(json);
    for (int i = 0; i < jsonCatalogs.size(); i++) {
        JSONObject catalog = (JSONObject) jsonCatalogs.get(i);
        if (catalog.get("flavor") == null || StringUtils.isBlank(catalog.get("flavor").toString())) {
            throw new IllegalArgumentException("Unable to create new event as no flavor was given for one of the metadata collections");
        }
        String flavorString = catalog.get("flavor").toString();
        MediaPackageElementFlavor flavor = MediaPackageElementFlavor.parseFlavor(flavorString);
        MetadataCollection collection = null;
        EventCatalogUIAdapter adapter = null;
        for (EventCatalogUIAdapter eventCatalogUIAdapter : catalogAdapters) {
            if (eventCatalogUIAdapter.getFlavor().equals(flavor)) {
                adapter = eventCatalogUIAdapter;
                collection = eventCatalogUIAdapter.getRawFields();
            }
        }
        if (collection == null) {
            throw new IllegalArgumentException(String.format("Unable to find an EventCatalogUIAdapter with Flavor '%s'", flavorString));
        }
        String fieldsJson = catalog.get("fields").toString();
        if (StringUtils.trimToNull(fieldsJson) != null) {
            Map<String, String> fields = RequestUtils.getKeyValueMap(fieldsJson);
            for (String key : fields.keySet()) {
                if ("subjects".equals(key)) {
                    // Handle the special case of allowing subjects to be an array.
                    MetadataField<?> field = collection.getOutputFields().get(DublinCore.PROPERTY_SUBJECT.getLocalName());
                    if (field == null) {
                        throw new NotFoundException(String.format("Cannot find a metadata field with id 'subject' from Catalog with Flavor '%s'.", flavorString));
                    }
                    collection.removeField(field);
                    try {
                        JSONArray subjects = (JSONArray) parser.parse(fields.get(key));
                        collection.addField(MetadataField.copyMetadataFieldWithValue(field, StringUtils.join(subjects.iterator(), ",")));
                    } catch (ParseException e) {
                        throw new IllegalArgumentException(String.format("Unable to parse the 'subjects' metadata array field because: %s", e.toString()));
                    }
                } else if ("startDate".equals(key)) {
                    // Special handling for start date since in API v1 we expect start date and start time to be separate fields.
                    MetadataField<String> field = (MetadataField<String>) collection.getOutputFields().get(key);
                    if (field == null) {
                        throw new NotFoundException(String.format("Cannot find a metadata field with id '%s' from Catalog with Flavor '%s'.", key, flavorString));
                    }
                    SimpleDateFormat apiSdf = MetadataField.getSimpleDateFormatter(startDatePattern.getOr(field.getPattern().get()));
                    SimpleDateFormat sdf = MetadataField.getSimpleDateFormatter(field.getPattern().get());
                    DateTime newStartDate = new DateTime(apiSdf.parse(fields.get(key)), DateTimeZone.UTC);
                    if (field.getValue().isSome()) {
                        DateTime oldStartDate = new DateTime(sdf.parse(field.getValue().get()), DateTimeZone.UTC);
                        newStartDate = oldStartDate.withDate(newStartDate.year().get(), newStartDate.monthOfYear().get(), newStartDate.dayOfMonth().get());
                    }
                    collection.removeField(field);
                    collection.addField(MetadataField.copyMetadataFieldWithValue(field, sdf.format(newStartDate.toDate())));
                } else if ("startTime".equals(key)) {
                    // Special handling for start time since in API v1 we expect start date and start time to be separate fields.
                    MetadataField<String> field = (MetadataField<String>) collection.getOutputFields().get("startDate");
                    if (field == null) {
                        throw new NotFoundException(String.format("Cannot find a metadata field with id '%s' from Catalog with Flavor '%s'.", "startDate", flavorString));
                    }
                    SimpleDateFormat apiSdf = MetadataField.getSimpleDateFormatter(startTimePattern.getOr("HH:mm"));
                    SimpleDateFormat sdf = MetadataField.getSimpleDateFormatter(field.getPattern().get());
                    DateTime newStartDate = new DateTime(apiSdf.parse(fields.get(key)), DateTimeZone.UTC);
                    if (field.getValue().isSome()) {
                        DateTime oldStartDate = new DateTime(sdf.parse(field.getValue().get()), DateTimeZone.UTC);
                        newStartDate = oldStartDate.withTime(newStartDate.hourOfDay().get(), newStartDate.minuteOfHour().get(), newStartDate.secondOfMinute().get(), newStartDate.millisOfSecond().get());
                    }
                    collection.removeField(field);
                    collection.addField(MetadataField.copyMetadataFieldWithValue(field, sdf.format(newStartDate.toDate())));
                } else {
                    MetadataField<?> field = collection.getOutputFields().get(key);
                    if (field == null) {
                        throw new NotFoundException(String.format("Cannot find a metadata field with id '%s' from Catalog with Flavor '%s'.", key, flavorString));
                    }
                    collection.removeField(field);
                    collection.addField(MetadataField.copyMetadataFieldWithValue(field, fields.get(key)));
                }
            }
        }
        metadataList.add(adapter, collection);
    }
    setStartDateAndTimeIfUnset(metadataList);
    return metadataList;
}

Example 2 with MetadataField

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

the class MetadataUtils method copyMetadataField.

/**
 * Copy a {@link MetadataField} into a new field.
 *
 * @param other
 *          The other {@link MetadataField} to copy the state from.
 * @return A new {@link MetadataField} with the same settings as the passed in {@link MetadataField}
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public static MetadataField copyMetadataField(MetadataField other) {
    MetadataField newField = new MetadataField();
    newField.setCollection(other.getCollection());
    newField.setCollectionID(other.getCollectionID());
    newField.setInputId(other.getInputID());
    newField.setIsTranslatable(other.isTranslatable());
    newField.setLabel(other.getLabel());
    newField.setListprovider(other.getListprovider());
    newField.setNamespace(other.getNamespace());
    newField.setOutputID(Opt.some(other.getOutputID()));
    newField.setPattern(other.getPattern());
    newField.setOrder(other.getOrder());
    newField.setReadOnly(other.isReadOnly());
    newField.setRequired(other.isRequired());
    newField.setJsonType(other.getJsonType());
    newField.setJsonToValue(other.getJsonToValue());
    newField.setValueToJSON(other.getValueToJSON());
    newField.setType(other.getType());
    if (other.getValue().isSome()) {
        newField.setValue(other.getValue().get());
    }
    return newField;
}

Example 3 with MetadataField

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

the class EventsEndpoint method updateEventMetadataByType.

@PUT
@Path("{eventId}/metadata")
@Produces({ "application/json", "application/v1.0.0+json" })
@RestQuery(name = "updateeventmetadata", description = "Update the metadata with the matching type of the specified event. For a metadata catalog there is the flavor such as 'dublincore/episode' and this is the unique type.", returnDescription = "", pathParameters = { @RestParameter(name = "eventId", description = "The event id", isRequired = true, type = STRING) }, restParameters = { @RestParameter(name = "type", isRequired = true, description = "The type of metadata to update", type = STRING), @RestParameter(name = "metadata", description = "Metadata catalog in JSON format", isRequired = true, type = STRING) }, reponses = { @RestResponse(description = "The metadata of the given namespace has been updated.", responseCode = HttpServletResponse.SC_OK), @RestResponse(description = "The request is invalid or inconsistent.", responseCode = HttpServletResponse.SC_BAD_REQUEST), @RestResponse(description = "The specified event does not exist.", responseCode = HttpServletResponse.SC_NOT_FOUND) })
public Response updateEventMetadataByType(@HeaderParam("Accept") String acceptHeader, @PathParam("eventId") String id, @QueryParam("type") String type, @FormParam("metadata") String metadataJSON) throws Exception {
    Map<String, String> updatedFields;
    JSONParser parser = new JSONParser();
    try {
        updatedFields = RequestUtils.getKeyValueMap(metadataJSON);
    } catch (ParseException e) {
        logger.debug("Unable to update event '{}' with metadata type '{}' and content '{}' because: {}", id, type, metadataJSON, ExceptionUtils.getStackTrace(e));
        return RestUtil.R.badRequest(String.format("Unable to parse metadata fields as json from '%s' because '%s'", metadataJSON, ExceptionUtils.getStackTrace(e)));
    } catch (IllegalArgumentException e) {
        logger.debug("Unable to update event '{}' with metadata type '{}' and content '{}' because: {}", id, type, metadataJSON, ExceptionUtils.getStackTrace(e));
        return RestUtil.R.badRequest(e.getMessage());
    }
    if (updatedFields == null || updatedFields.size() == 0) {
        return RestUtil.R.badRequest(String.format("Unable to parse metadata fields as json from '%s' because there were no fields to update.", metadataJSON));
    }
    Opt<MediaPackageElementFlavor> flavor = getFlavor(type);
    if (flavor.isNone()) {
        return R.badRequest(String.format("Unable to parse type '%s' as a flavor so unable to find the matching catalog.", type));
    }
    MetadataCollection collection = null;
    EventCatalogUIAdapter adapter = null;
    for (final Event event : indexService.getEvent(id, externalIndex)) {
        MetadataList metadataList = new MetadataList();
        // Try the main catalog first as we load it from the index.
        if (flavor.get().equals(eventCatalogUIAdapter.getFlavor())) {
            collection = EventUtils.getEventMetadata(event, eventCatalogUIAdapter);
            adapter = eventCatalogUIAdapter;
        } else {
            metadataList.add(eventCatalogUIAdapter, EventUtils.getEventMetadata(event, eventCatalogUIAdapter));
        }
        // Try the other catalogs
        List<EventCatalogUIAdapter> catalogUIAdapters = getEventCatalogUIAdapters();
        catalogUIAdapters.remove(eventCatalogUIAdapter);
        MediaPackage mediaPackage = indexService.getEventMediapackage(event);
        if (catalogUIAdapters.size() > 0) {
            for (EventCatalogUIAdapter catalogUIAdapter : catalogUIAdapters) {
                if (flavor.get().equals(catalogUIAdapter.getFlavor())) {
                    collection = catalogUIAdapter.getFields(mediaPackage);
                    adapter = eventCatalogUIAdapter;
                } else {
                    metadataList.add(catalogUIAdapter, catalogUIAdapter.getFields(mediaPackage));
                }
            }
        }
        if (collection == null) {
            return ApiResponses.notFound("Cannot find a catalog with type '%s' for event with id '%s'.", type, id);
        }
        for (String key : updatedFields.keySet()) {
            if ("subjects".equals(key)) {
                MetadataField<?> field = collection.getOutputFields().get(DublinCore.PROPERTY_SUBJECT.getLocalName());
                Opt<Response> error = validateField(field, key, id, type, updatedFields);
                if (error.isSome()) {
                    return error.get();
                }
                collection.removeField(field);
                JSONArray subjectArray = (JSONArray) parser.parse(updatedFields.get(key));
                collection.addField(MetadataField.copyMetadataFieldWithValue(field, StringUtils.join(subjectArray.iterator(), ",")));
            } else if ("startDate".equals(key)) {
                // Special handling for start date since in API v1 we expect start date and start time to be separate fields.
                MetadataField<String> field = (MetadataField<String>) collection.getOutputFields().get(key);
                Opt<Response> error = validateField(field, key, id, type, updatedFields);
                if (error.isSome()) {
                    return error.get();
                }
                String apiPattern = field.getPattern().get();
                if (configuredMetadataFields.containsKey("startDate")) {
                    apiPattern = configuredMetadataFields.get("startDate").getPattern().getOr(apiPattern);
                }
                SimpleDateFormat apiSdf = MetadataField.getSimpleDateFormatter(apiPattern);
                SimpleDateFormat sdf = MetadataField.getSimpleDateFormatter(field.getPattern().get());
                DateTime oldStartDate = new DateTime(sdf.parse(field.getValue().get()), DateTimeZone.UTC);
                DateTime newStartDate = new DateTime(apiSdf.parse(updatedFields.get(key)), DateTimeZone.UTC);
                DateTime updatedStartDate = oldStartDate.withDate(newStartDate.year().get(), newStartDate.monthOfYear().get(), newStartDate.dayOfMonth().get());
                collection.removeField(field);
                collection.addField(MetadataField.copyMetadataFieldWithValue(field, sdf.format(updatedStartDate.toDate())));
            } else if ("startTime".equals(key)) {
                // Special handling for start time since in API v1 we expect start date and start time to be separate fields.
                MetadataField<String> field = (MetadataField<String>) collection.getOutputFields().get("startDate");
                Opt<Response> error = validateField(field, "startDate", id, type, updatedFields);
                if (error.isSome()) {
                    return error.get();
                }
                String apiPattern = "HH:mm";
                if (configuredMetadataFields.containsKey("startTime")) {
                    apiPattern = configuredMetadataFields.get("startTime").getPattern().getOr(apiPattern);
                }
                SimpleDateFormat apiSdf = MetadataField.getSimpleDateFormatter(apiPattern);
                SimpleDateFormat sdf = MetadataField.getSimpleDateFormatter(field.getPattern().get());
                DateTime oldStartDate = new DateTime(sdf.parse(field.getValue().get()), DateTimeZone.UTC);
                DateTime newStartDate = new DateTime(apiSdf.parse(updatedFields.get(key)), DateTimeZone.UTC);
                DateTime updatedStartDate = oldStartDate.withTime(newStartDate.hourOfDay().get(), newStartDate.minuteOfHour().get(), newStartDate.secondOfMinute().get(), newStartDate.millisOfSecond().get());
                collection.removeField(field);
                collection.addField(MetadataField.copyMetadataFieldWithValue(field, sdf.format(updatedStartDate.toDate())));
            } else {
                MetadataField<?> field = collection.getOutputFields().get(key);
                Opt<Response> error = validateField(field, key, id, type, updatedFields);
                if (error.isSome()) {
                    return error.get();
                }
                collection.removeField(field);
                collection.addField(MetadataField.copyMetadataFieldWithValue(field, updatedFields.get(key)));
            }
        }
        metadataList.add(adapter, collection);
        indexService.updateEventMetadata(id, metadataList, externalIndex);
        return ApiResponses.Json.noContent(ApiVersion.VERSION_1_0_0);
    }
    return ApiResponses.notFound("Cannot find an event with id '%s'.", id);
}

Example 4 with MetadataField

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

the class EventsEndpoint method convertStartDateTimeToApiV1.

private void convertStartDateTimeToApiV1(MetadataCollection collection) throws java.text.ParseException {
    if (!collection.getOutputFields().containsKey("startDate"))
        return;
    MetadataField<String> oldStartDateField = (MetadataField<String>) collection.getOutputFields().get("startDate");
    SimpleDateFormat sdf = MetadataField.getSimpleDateFormatter(oldStartDateField.getPattern().get());
    Date startDate = sdf.parse(oldStartDateField.getValue().get());
    if (configuredMetadataFields.containsKey("startDate")) {
        MetadataField<String> startDateField = (MetadataField<String>) configuredMetadataFields.get("startDate");
        startDateField = MetadataField.createTemporalStartDateMetadata(startDateField.getInputID(), Opt.some(startDateField.getOutputID()), startDateField.getLabel(), startDateField.isReadOnly(), startDateField.isRequired(), startDateField.getPattern().getOr("yyyy-MM-dd"), startDateField.getOrder(), startDateField.getNamespace());
        sdf.applyPattern(startDateField.getPattern().get());
        startDateField.setValue(sdf.format(startDate));
        collection.removeField(oldStartDateField);
        collection.addField(startDateField);
    }
    if (configuredMetadataFields.containsKey("startTime")) {
        MetadataField<String> startTimeField = (MetadataField<String>) configuredMetadataFields.get("startTime");
        startTimeField = MetadataField.createTemporalStartTimeMetadata(startTimeField.getInputID(), Opt.some(startTimeField.getOutputID()), startTimeField.getLabel(), startTimeField.isReadOnly(), startTimeField.isRequired(), startTimeField.getPattern().getOr("HH:mm"), startTimeField.getOrder(), startTimeField.getNamespace());
        sdf.applyPattern(startTimeField.getPattern().get());
        startTimeField.setValue(sdf.format(startDate));
        collection.addField(startTimeField);
    }
}

Example 5 with MetadataField

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

the class DublinCoreMetadataUtil method getDublinCoreProperties.

@SuppressWarnings("unchecked")
public static Map<String, MetadataField<?>> getDublinCoreProperties(Dictionary configProperties) {
    Map<String, MetadataField<?>> dublinCorePropertyMapByConfigurationName = new HashMap<String, MetadataField<?>>();
    for (Object configObject : Collections.list(configProperties.keys())) {
        String property = configObject.toString();
        if (getDublinCorePropertyName(property).isSome()) {
            MetadataField<?> dublinCoreProperty = dublinCorePropertyMapByConfigurationName.get(getDublinCorePropertyName(property).get());
            if (dublinCoreProperty == null) {
                dublinCoreProperty = new MetadataField();
            }
            dublinCoreProperty.setValue(getDublinCorePropertyKey(property).get(), configProperties.get(property).toString());
            dublinCorePropertyMapByConfigurationName.put(getDublinCorePropertyName(property).get(), dublinCoreProperty);
        }
    }
    Map<String, MetadataField<?>> dublinCorePropertyMap = new TreeMap<String, MetadataField<?>>();
    for (MetadataField dublinCoreProperty : dublinCorePropertyMapByConfigurationName.values()) {
        dublinCorePropertyMap.put(dublinCoreProperty.getOutputID(), dublinCoreProperty);
    }
    return dublinCorePropertyMap;
}