AuthToken authToken = this.authTokenDao.getByToken(oauth_token);
switch (source) {
case Sina:
SinaAuthApi sinaOAuth = new SinaAuthApi(authToken);
authToken = sinaOAuth.exchangeToken(oauth_verifier);
break;
case Tqq:
TqqAuthApi tqqOAuth = new TqqAuthApi(authToken);
authToken = tqqOAuth.exchangeToken(oauth_verifier);
break;