I am trying to create a method which converts office documents into PDF. Now I want to use LibreOffice for this. LibreOffice has a docker image from LinuxServer.io which seems well-maintained. The only problem is that I can’t seem to make a connection to it.

I have started the container from https://docs.linuxserver.io/images/docker-libreoffice/ in my local docker environment. The ports are correctly mapped as I can navigate to the GUI in my browser.

Now when I want to use JODConverter to convert a file, I get a 404 message.

Does anyone know how I can reach the API?

Below is my class in which I have implemented JODConverter:

@ApplicationScoped
public class OfficeConverter implements Converter {
    private OfficeManager remoteOfficeManager;

    final SslConfig sslConfig = new SslConfig();

    @Inject
    OfficeConverterConfig officeConverterConfig;

    @Override
    public Uni<List<File>> convert(List<File> files, ConverterConfiguration conversionConfiguration) {
        return Uni
                .join()
                .all(files.stream().map(this::convertToPdf).toList())
                .usingConcurrencyOf(officeConverterConfig.concurrency())
                .andFailFast()
                .onFailure()
                .recoverWithUni(exception -> {
                    Log.error(
                            conversionConfiguration.id().toString(),
                            "A problem occurred while executing the office converter.",
                            exception
                    );

                    return Uni.createFrom().failure(new OfficeConversionProblem());
                });
    }

    private Uni<File> convertToPdf(File file) {
        return Uni.createFrom().emitter(emitter -> {
            try {
                String fileName = file.getName();
                String fileNameWithoutExtension = fileName.substring(0, fileName.lastIndexOf("."));
                File tmpFile = Files.createTempFile(fileNameWithoutExtension, ".pdf").toFile();

                RemoteConverter.make(remoteOfficeManager).convert(file).to(tmpFile).execute();

                emitter.complete(tmpFile);
            } catch (IOException | OfficeException exception) {
                emitter.fail(new OfficeConversionProblem());
            }
        });
    }

    public void init(@Observes StartupEvent event) throws OfficeException {
        sslConfig.setEnabled(false);

        remoteOfficeManager = RemoteOfficeManager
                .builder()
                .urlConnection(officeConverterConfig.url())
                .sslConfig(sslConfig)
                .build();

        remoteOfficeManager.start();
    }

    public void destroy(@Observes ShutdownEvent event) throws OfficeException {
        remoteOfficeManager.stop();
    }
}

And I am using the following configuration:

  office:
    concurrency: 5
    url: http://localhost:55003