Export CSV or TSV files as Zip using Java

TSVExporter.java

@Log4j2
@Component
@RequiredArgsConstructor(onConstructor_ = @Autowired)
public class TagDataExporter {
    @Nonnull private final DataExportImportSupport dataExportImportSupport;
    @Nonnull private final AccountFileSupport accountFileSupport;
    @Nonnull private final IdeaService ideaService;

    private static final String TSV_DELIMITER = "\t";
    private static final String FILE_NAME_INFIX = "tags";
    private static final int MAX_PAGE_SIZE = 500;
    private final String[] EXPORT_COLUMNS = new String[]{
            "community_id",
            "idea_id",
            "tag",
    };

    public File export(Community community) throws Exception {
        File fullyQualifiedFile = new File(accountFileSupport.getAccountRootFolder(community.getAccountId()), getFilename(community));
        try (PrintStream tsv = dataExportImportSupport.createNlpDataExportStream(fullyQualifiedFile, EXPORT_COLUMNS)) {
            Pageable pageable = PageRequest.of(0, MAX_PAGE_SIZE);
            Page<Long> ideaIds;
            do {
                ideaIds = ideaService.findIdeaIds(community, pageable);
                ideaIds.getContent().forEach(ideaId -> exportIdeaTags(community, ideaId, tsv));
                pageable = ideaIds.nextPageable();
            } while (ideaIds.hasNext());
        }
        return fullyQualifiedFile;
    }

    private void exportIdeaTags(Community community, Long ideaId, PrintStream tsv) {
        ideaService.findIdeaTags(community, ideaId).forEach(ideaTag -> {
            try {
                StringJoiner row = new StringJoiner(TSV_DELIMITER)
                        .add(String.valueOf(ideaTag.getCommunityId()))
                        .add(String.valueOf(ideaTag.getIdeaId()))
                        .add(ideaTag.getTag());
                tsv.println(row);
            } catch (Exception exception) {
                log.warn("Failed to export Idea tags of Id :: {} for community :: {}", ideaTag.getIdeaId(), community.getShortUrl());
            }
        });
    }

    private String getFilename(Community community) {
        return community.getId()
                + "-" + FILE_NAME_INFIX
                + ".tsv";
    }
}

ZipExporter.java

@Component
@Log4j2
@RequiredArgsConstructor(onConstructor_ = @Autowired)
public class NlpDataExporter {

    @Nonnull private final AccountFileSupport accountFileSupport;
    @Nonnull private final TagDataExporter tagDataExporter;

    public File export(Community community) throws Exception {
        List<File> exportedFiles = new ArrayList<>();
        exportedFiles.add(tagDataExporter.export(community));
        // add more here
        return createZipFile(community, exportedFiles);
    }

    private File createZipFile(Community community, List<File> exportedFiles) throws IOException {
        File exportFolder = new File(accountFileSupport.getAccountRootFolder(community.getAccountId()), community.getDataSourceKey().getId()
                + DASH + community.getId() + DASH + community.getName());
        exportedFiles.forEach(file -> {
            try {
                FileUtils.moveFileToDirectory(file, exportFolder, true);
            } catch (IOException e) {
                log.warn("Failed to move file into zip folder");
            }
        });
        File zipFile = new File(accountFileSupport.getAccountRootFolder(community.getAccountId()), exportFolder.getName() + ".zip");
        ZipUtils.zipFolder(exportFolder.toPath(), zipFile.toPath());
        FileUtils.deleteDirectory(exportFolder);
        return zipFile;
    }
}