com.yattatech.dbtc.util.TwitterUtil.java Source code

Introduction

Here is the source code for com.yattatech.dbtc.util.TwitterUtil.java

Source

/*
 * Copyright (c) 2014, Yatta Tech and/or its affiliates. All rights reserved.
 * YATTATECH PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.yattatech.dbtc.util;

import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.RequestToken;
import twitter4j.conf.ConfigurationBuilder;

import com.yattatech.dbtc.Constants;
import com.yattatech.dbtc.DBTCApplication;
import com.yattatech.dbtc.R;
import com.yattatech.dbtc.log.Debug;

/**
 * Utility class that knows how to create a {@link Twitter} object
 * used to connect to twitter service
 * 
 * @author Adriano Braga Alencar (adrianobragaalencar@gmail.com)
 *
 */
public final class TwitterUtil {

    private static final String TAG = "TwitterUtil";
    private static Twitter sTwitter;
    private static RequestToken sRequestToken;

    private TwitterUtil() {
        throw new AssertionError();
    }

    /**
     * Whenever the user request login operation invalid {@link RequestToken}
     * 
     */
    public static void invalidRequestToken() {
        Debug.d(TAG, "invalidRequestToken");
        sTwitter = null;
        sRequestToken = null;
    }

    /**
     * Workaround needed cause in some devices as Galaxy S2 and Morotola
     * Milestone, that ref is cleaned after make twitter authentication 
     * process
     * 
     */
    public static RequestToken getRequestToken() throws TwitterException {
        Debug.d(TAG, "getRequestToken");
        if (sRequestToken == null) {
            sRequestToken = getTwitter().getOAuthRequestToken(Constants.TWITTER_CALLBACK);
            if (Debug.isDebugable()) {
                Debug.d(TAG, "RequstToken=" + sRequestToken);
            }
        }
        return sRequestToken;
    }

    public static Twitter getTwitter() {
        if (sTwitter == null) {
            final ConfigurationBuilder builder = new ConfigurationBuilder();
            builder.setHttpConnectionTimeout(Constants.TWITTER_TIMEOUT);
            sTwitter = new TwitterFactory(builder.build()).getInstance();
            // These values represents DBTC Twitter app credentials, don't
            // expose that data to anyone else
            final String twitterKey = DBTCApplication.sApplicationContext.getString(R.string.twitter_key);
            final String twitterSecret = DBTCApplication.sApplicationContext.getString(R.string.twitter_secret);
            sTwitter.setOAuthConsumer(twitterKey, twitterSecret);
        }
        return sTwitter;
    }
}