public File downloadUpdate(LauncherVersion remoteVersion, String format) throws IOException {
if (remoteVersion.getSource() == null) { // malformed file, or local version
throw new RuntimeException("Invalid remote version: source is null");
}
// check current format
String remoteURL = remoteVersion.getSource() + format;
String fileName =
"mualauncher_" + remoteVersion.getVersion() + "_" + remoteVersion.getBuild() + "-";
File temporaryFile = File.createTempFile(fileName, format);
DownloadAdapter downloader = Downloader.create(remoteURL);
DownloadWindow window = new DownloadWindow(Resources.string("selfupdate_title"));
downloader.setDownloadListener(window);
downloader.downloadToFile(temporaryFile);
window.dispose(); // not needed anymore
return temporaryFile;
}
public LauncherVersion fetchRemoteVersion() {
try {
String versionJson = Downloader.create(removeVersionURL).downloadToString();
return LauncherVersion.fromJson(versionJson);
} catch (Throwable e) {
Logger.warning("Unable to fetch remote version: %s", e.getMessage());
e.printStackTrace();
}
return null;
}