fromCompressedData static method

Future<List<Resource>> fromCompressedData(String contentType, dynamic content)

Accepts data that is zipped, x-zip-compressed, tar, or gz. Note, this function assumes that all uncompressed data is in ndjson format

Implementation

static Future<List<Resource>> fromCompressedData(
    String contentType, dynamic content) async {
  final List<Resource> resourceList = <Resource>[];
  if (contentType == 'application/zip' ||
      contentType == 'application/x-zip-compressed') {
    final Archive archive = ZipDecoder().decodeBytes(content as List<int>);
    for (final ArchiveFile file in archive) {
      if (file.isFile) {
        final List<int> data = file.content as List<int>;
        resourceList.addAll(fromNdJson(utf8.decode(data)));
      }
    }
  } else if (contentType == 'application/x-tar') {
    final List<int> unzipped =
        GZipDecoder().decodeBytes(content as List<int>);
    final Archive archive = TarDecoder().decodeBytes(unzipped);
    for (final ArchiveFile file in archive) {
      if (file.isFile) {
        resourceList
            .addAll(fromNdJson(utf8.decode(file.content as List<int>)));
      }
    }
  } else if (contentType == 'application/gzip') {
    final List<int> data = GZipDecoder().decodeBytes(content as List<int>);
    resourceList.addAll(fromNdJson(utf8.decode(data)));
  }
  return resourceList;
}