com.springsource.greenhouse.connect.providers.Twitter4JServiceProvider.java Source code

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Here is the source code for com.springsource.greenhouse.connect.providers.Twitter4JServiceProvider.java

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/*
 * Copyright 2010 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 com.springsource.greenhouse.connect.providers;

import java.util.Properties;

import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.conf.Configuration;
import twitter4j.conf.PropertyConfiguration;
import twitter4j.http.AccessToken;
import twitter4j.http.Authorization;
import twitter4j.http.OAuthAuthorization;

import com.springsource.greenhouse.connect.AbstractServiceProvider;
import com.springsource.greenhouse.connect.AccountConnectionRepository;
import com.springsource.greenhouse.connect.ServiceProviderParameters;
import com.springsource.greenhouse.connect.OAuthToken;

/**
 * Twitter ServiceProvider that uses the Twitter4J API.
 * @author Craig Walls
 */
public class Twitter4JServiceProvider extends AbstractServiceProvider<Twitter> {

    public Twitter4JServiceProvider(ServiceProviderParameters parameters,
            AccountConnectionRepository connectionRepository) {
        super(parameters, connectionRepository);
    }

    protected Twitter createServiceOperations(OAuthToken accessToken) {
        TwitterFactory twitterFactory = new TwitterFactory();
        AccessToken oauthToken = new AccessToken(accessToken.getValue(), accessToken.getSecret());
        Configuration configuration = new PropertyConfiguration(new Properties());
        Authorization authorization = new OAuthAuthorization(configuration, getApiKey(), getSecret(), oauthToken);
        return accessToken != null ? twitterFactory.getInstance(authorization) : twitterFactory.getInstance();
    }

    protected String fetchProviderAccountId(Twitter twitter) {
        try {
            return twitter.getScreenName();
        } catch (TwitterException e) {
            return null;
        }
    }

    protected String buildProviderProfileUrl(String screenName, Twitter twitter) {
        return "http://www.twitter.com/" + screenName;
    }
}