Examples with ExportFeed com.thinkbiganalytics.metadata.api.feed.export.ExportFeed used on opensource projects

Example 1 with ExportFeed

use of com.thinkbiganalytics.metadata.api.feed.export.ExportFeed in project kylo by Teradata.

the class DefaultFeedExporter method exportFeed.

/**
 * Export a feed as a zip file
 *
 * @param feedId the id {@link Feed#getId()} of the feed to export
 * @return object containing the zip file with data about the feed.
 */
@Override
public ExportFeed exportFeed(String feedId) throws IOException {
    this.accessController.checkPermission(AccessController.SERVICES, FeedServicesAccessControl.EXPORT_FEEDS);
    this.metadataService.checkFeedPermission(feedId, FeedAccessControl.EXPORT);
    // Prepare feed metadata
    final FeedMetadata feed = metadataService.getFeedById(feedId);
    if (feed == null) {
        // feed will not be found when user is allowed to export feeds but has no entity access to feed with feed id
        throw new NotFoundException("Feed not found for id " + feedId);
    }
    final List<Datasource> userDatasources = Optional.ofNullable(feed.getDataTransformation()).map(FeedDataTransformation::getDatasourceIds).map(datasourceIds -> metadataAccess.read(() -> datasourceIds.stream().map(datasourceProvider::resolve).map(datasourceProvider::getDatasource).map(domain -> datasourceTransform.toDatasource(domain, DatasourceModelTransform.Level.FULL)).map(datasource -> {
        // Clear sensitive fields
        datasource.getDestinationForFeeds().clear();
        datasource.getSourceForFeeds().clear();
        return datasource;
    }).collect(Collectors.toList()))).orElse(null);
    if (userDatasources != null && !userDatasources.isEmpty()) {
        this.accessController.checkPermission(AccessController.SERVICES, FeedServicesAccessControl.ACCESS_DATASOURCES);
        feed.setUserDatasources(userDatasources);
    }
    // Add feed json to template zip file
    final ExportTemplate exportTemplate = templateExporter.exportTemplateForFeedExport(feed.getTemplateId());
    final String feedJson = ObjectMapperSerializer.serialize(feed);
    final byte[] zipFile = ZipFileUtil.addToZip(exportTemplate.getFile(), feedJson, ImportFeed.FEED_JSON_FILE);
    return new ExportFeed(feed.getSystemFeedName() + ".feed.zip", zipFile);
}