/*
* Copyright 2007 Yusuke Yamamoto
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package twitter4j.auth;
import twitter4j.conf.Configuration;
/**
* A static factory class for Authorization.
*
* @author Yusuke Yamamoto - yusuke at mac.com
* @since Twitter4J 2.1.1
*/
public final class AuthorizationFactory {
/**
* @param conf configuration
* @return authorization instance
* @since Twitter4J 2.1.11
*/
public static Authorization getInstance(final Configuration conf) {
Authorization auth = null;
final String consumerKey = conf.getOAuthConsumerKey();
final String consumerSecret = conf.getOAuthConsumerSecret();
if (consumerKey != null && consumerSecret != null) {
OAuthAuthorization oauth;
oauth = new OAuthAuthorization(conf);
final String accessToken = conf.getOAuthAccessToken();
final String accessTokenSecret = conf.getOAuthAccessTokenSecret();
if (accessToken != null && accessTokenSecret != null) {
oauth.setOAuthAccessToken(new AccessToken(accessToken, accessTokenSecret));
}
auth = oauth;
} else {
final String screenName = conf.getUser();
final String password = conf.getPassword();
if (screenName != null && password != null) {
auth = new BasicAuthorization(screenName, password);
}
}
if (null == auth) {
auth = NullAuthorization.getInstance();
}
return auth;
}
}