Storage

The FileStore interface allows you to have different storage services, like S3 or Google Drive, connected to your application. You can save and load files from disk or cloud storage services easily.

public interface FileStore {
  InputStream load(String path);
  String store(String path, InputStream data);
  boolean delete(String path);
}

AWSFileStore

The AWS S3 Storage plugin uses S3 as file storage provider. The location of each file is controlled by the bucket name cofiguration property para.s3.bucket. There is also the para.s3.max_filesize_mb property which restricts the size of the upload.

Before each upload, files are prepended with a timestamp, for example myfile.txt becomes 1405632454930.myfile.txt. Currently all files are set to be stored with “Reduced Redundancy” turned on.

You can Gzip compress files before uploading uploading but you must append the .gz extension in order for the correct content encoding header to be set. The extension is removed before upload.

LocalFileStore

This implementation stores files on the local file system. The folder where files will be stored is set with the para.localstorage.folder property. The maximum file size is controlled by para.localstorage.max_filesize_mb.