@Override
public Token getToken() {
if (null == token || token.isExpired()) {
try {
ObjectNode objectNode = factory.objectNode();
objectNode.put("grant_type", "client_credentials");
objectNode.put("client_id", tokenKey1);
objectNode.put("client_secret", tokenKey2);
List<NameValuePair> headers = new ArrayList<>();
headers.add(new BasicNameValuePair("Content-Type", "application/json"));
HttpPost httpPost = new HttpPost();
httpPost.setURI(tokenURL.toURI());
for (NameValuePair nameValuePair : headers) {
httpPost.addHeader(nameValuePair.getName(), nameValuePair.getValue());
}
httpPost.setEntity(new StringEntity(objectNode.toString(), "UTF-8"));
HttpResponse tokenResponse = client.execute(httpPost);
HttpEntity entity = tokenResponse.getEntity();
String results = EntityUtils.toString(entity, "UTF-8");
if (tokenResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
ObjectMapper mapper = new ObjectMapper();
JsonFactory factory = mapper.getJsonFactory();
JsonParser jp = factory.createJsonParser(results);
JsonNode json = mapper.readTree(jp);
String accessToken = json.get("access_token").asText();
Long expiredAt = System.currentTimeMillis() + json.get("expires_in").asLong() * 1000;
db.updateToken(accessToken, expiredAt);
token = new Token(accessToken, expiredAt);
}
} catch (Exception e) {
throw new RuntimeException(
"Some errors occurred while fetching a token by username and password .");
}
}
return token;
}
