public void save(List<ApiKey> storedKeys, OutputStream stream) throws IOException {
if (storedKeys != null) {
try (BufferedWriter writer =
new BufferedWriter(new OutputStreamWriter(stream, Util.createDefaultFileCharset()))) {
for (ApiKey key : storedKeys) {
writer.write(String.valueOf(key.getKeyId()));
writer.write(DELIMITER);
writer.write(key.getVerificationString());
writer.write("\n");
}
logger.log(Level.INFO, "saved {0} api keys.", storedKeys.size());
writer.flush();
}
}
}
