ContentRepository cannot persistent content

[ostmond]

Hi,

I am using MongoDB to save the file meta information and use content-fs-spring-boot-starter 1.2.1 to persist the FileStream like this:

contentRepository.setContent(meta, Files.newInputStream('/tmp/test.mp3'));
metaRepository.save(meta);

It was OK when I played the music on a GET-endpoint after I persisted the meta. However, after I restarted my Spring-Boot application and tried to play the music again, I got the Exception 'InputStream must not be null' when getContent was called. It seemed that the content had not been persisted really.

Do you have any idea? Thanks!

[paulcwarren]

Sounds like you are not setting a permanent root for the filesystem content store? By default the spring boot starter will choose a new temporary folder in your tmpdir everytime it starts up - giving an experience a bit like using H2 or HSQLDB. Usually fine for testing.

You need to override that behavior with a bean to sets a permanent root. Or, since you're using Mongo, use Mongo's GridFS?). The docs example is also using a temp dir which probably isn't the best example but hopefully you get the point. You need to set a permanent root; e.g. /data/mystore.

[ostmond]

Thank you very much! I set up the file system root, and It works now as you suggested.

@Configuration
@EnableFilesystemStores
public class ContentConfig {
    @Value("${file.upload.dir}")
    private String uploadDir;

    @Bean
    File filesystemRoot() {
        try {
            return Files.createDirectory(Paths.get(uploadDir)).toFile();
        } catch (FileAlreadyExistsException faee) {
          return new File(uploadDir);
        } catch (IOException ioe) {}

        return null;
    }

    @Bean
    FileSystemResourceLoader fileSystemResourceLoader() {
        return new FileSystemResourceLoader(filesystemRoot().getAbsolutePath());
    }
}