public void retrieveAccessToken(OAuthConsumer consumer, String oauthVerifier)
throws OAuthMessageSignerException, OAuthNotAuthorizedException,
OAuthExpectationFailedException, OAuthCommunicationException {
if (consumer.getToken() == null || consumer.getTokenSecret() == null) {
throw new OAuthExpectationFailedException(
"Authorized request token or token secret not set. "
+ "Did you retrieve an authorized request token before?");
}
if (this.isOAuth10a && oauthVerifier != null) {
retrieveToken(consumer, this.accessTokenEndpointUrl, OAuth.OAUTH_VERIFIER, oauthVerifier);
} else {
retrieveToken(consumer, this.accessTokenEndpointUrl);
}
}
