Add metadata to files

FileReferenceProperties

Before a FileReference get’s persisted a FileReferenceCreationEvent is emitted that can be used to modify the newly created file. It provides a way to configure additional properties through FileReferenceProperties. Theses properties can be used to store metadata about the file that was uploaded.

Add FileReferenceProperties to a FileReference

@Configuration
@RequiredArgsConstructor
public class CustomFileRepositoryConfiguration {
    private final FileReferencePropertiesService fileReferencePropertiesService;

    @EventListener
    public void fileReferenceSaved(FileReferenceCreationEvent fileReferenceCreationEvent) {
        FileReferenceProperties properties = fileReferenceCreationEvent.getFileReferenceProperties();
        properties.put("customProperty", "value");
    }
}

The FileReferenceService will save the FileReferenceProperties together with the FileReference after all events are handled.