/*
* Copyright 2014 the original author or authors.
*
* 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 org.springframework.social.facebook.config.support;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.social.UserIdSource;
import org.springframework.social.config.xml.ApiHelper;
import org.springframework.social.connect.Connection;
import org.springframework.social.connect.UsersConnectionRepository;
import org.springframework.social.facebook.api.Facebook;
import org.springframework.social.facebook.api.impl.FacebookTemplate;
/**
* Support class for JavaConfig and XML configuration support.
* Creates an API binding instance for the current user's connection.
* @author Craig Walls
*/
public class FacebookApiHelper implements ApiHelper<Facebook> {
private final UsersConnectionRepository usersConnectionRepository;
private final UserIdSource userIdSource;
private FacebookApiHelper(UsersConnectionRepository usersConnectionRepository, UserIdSource userIdSource) {
this.usersConnectionRepository = usersConnectionRepository;
this.userIdSource = userIdSource;
}
public Facebook getApi() {
if (logger.isDebugEnabled()) {
logger.debug("Getting API binding instance for Facebook");
}
Connection<Facebook> connection = usersConnectionRepository.createConnectionRepository(userIdSource.getUserId()).findPrimaryConnection(Facebook.class);
if (logger.isDebugEnabled() && connection == null) {
logger.debug("No current connection; Returning default FacebookTemplate instance.");
}
return connection != null ? connection.getApi() : new FacebookTemplate();
}
private final static Log logger = LogFactory.getLog(FacebookApiHelper.class);
}