/**
* Obtains the currently uploaded file from the session variable.
*
* @return uploaded file
* @throws FileNotFoundException
*/
private static File getCurrentUpload() throws FileNotFoundException {
String uploadFileId = session().get("uploadFileId");
UserUpload uploadFile = UserUpload.find.byId(Long.parseLong(uploadFileId));
File file = new File(uploadFile.absolutePath);
if (!file.exists()) {
throw new FileNotFoundException("Could not load input from file.");
}
return file;
}
/**
* 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;
}