/**
* Helper method creates a temp file from the multipart form data and persists the upload file
* metadata to the database
*
* @param filePart data from the form submission
* @return an instance of UploadFile that has been persisted to the db
*/
private static UserUpload uploadFile(Http.MultipartFormData.FilePart filePart) {
File src = (File) filePart.getFile();
File file = null;
try {
file = File.createTempFile(filePart.getFilename() + "-", ".csv");
FileUtils.copyFile(src, file);
} catch (IOException e) {
throw new RuntimeException("Could not create temp file for upload", e);
}
UserUpload uploadFile = new UserUpload();
uploadFile.absolutePath = file.getAbsolutePath();
uploadFile.fileName = filePart.getFilename();
uploadFile.user = Application.getCurrentUser();
uploadFile.save();
return uploadFile;
}
/**
* REST endpoint returns a json array containing metadata about the currently logged in user's
* uploaded files.
*
* @return json containing file upload ids and filenames
*/
public Result listUploads() {
List<UserUpload> uploadList = UserUpload.findUploadsByUserId(Application.getCurrentUserId());
ObjectNode response = Json.newObject();
ArrayNode uploads = response.putArray("uploads");
for (UserUpload userUpload : uploadList) {
ObjectNode upload = Json.newObject();
upload.put("id", userUpload.id);
upload.put("filename", userUpload.fileName);
uploads.add(upload);
}
return ok(uploads);
}