com.isdp.twitterposterandroid.TwitterManager.java Source code

Introduction

Here is the source code for com.isdp.twitterposterandroid.TwitterManager.java

Source

/*
 * Copyright (c) 2015 Evan Kale
 * Email: EvanKale91@gmail.com
 * Website: www.ISeeDeadPixel.com
 *
 * This file is part of TwitterPosterAndroid.
 *
 * TwitterPosterAndroid is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.isdp.twitterposterandroid;

import java.util.StringTokenizer;

import twitter4j.FilterQuery;
import twitter4j.StallWarning;
import twitter4j.Status;
import twitter4j.StatusDeletionNotice;
import twitter4j.StatusListener;
import twitter4j.Twitter;
import twitter4j.TwitterFactory;
import twitter4j.TwitterStream;
import twitter4j.TwitterStreamFactory;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import android.util.Log;

public class TwitterManager {
    private static TwitterManager instance;

    private TwitterManager() {
    }

    public static TwitterManager getInstance() {
        if (instance == null)
            instance = new TwitterManager();

        return instance;
    }

    /*
     * Get Twitter OAuth keys here:
     * https://apps.twitter.com/
     *
     */

    private static final String OAUTH_CONSUMER_KEY = "<YOUR CONSUMER KEY HERE>";
    private static final String OAUTH_CONSUMER_SECRET = "<YOUR CONSUMER SECRET HERE>";
    private static final String OAUTH_ACCESS_TOKEN = "<YOUR ACCESS TOKEN HERE>";
    private static final String OAUTH_ACCESS_TOKEN_SECRET = "<YOUR ACCESS TOKEN SECRET HERE>";
    private static final long FOLLOW_ID = 0L; //TWITTER ID OF ACCOUNT TO LISTEN TO (numeric, not hastag)

    public static final int TWITTER_CHARACTER_LIMIT = 140;

    private Configuration configuration;

    public void initTwitter() {
        ConfigurationBuilder configurationBuilder = new ConfigurationBuilder();
        configurationBuilder.setDebugEnabled(true).setOAuthConsumerKey(OAUTH_CONSUMER_KEY)
                .setOAuthConsumerSecret(OAUTH_CONSUMER_SECRET).setOAuthAccessToken(OAUTH_ACCESS_TOKEN)
                .setOAuthAccessTokenSecret(OAUTH_ACCESS_TOKEN_SECRET);
        configuration = configurationBuilder.build();

    }

    public void tweet(String message) {
        TwitterFactory tf = new TwitterFactory(configuration);
        Twitter twitter = tf.getInstance();
        try {
            Status status = twitter.updateStatus(message);
            Log.d("Tweet status", "Successfully updated the status to [" + status.getText() + "].");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void startTwitterStream() {
        TwitterStream twitterStream = new TwitterStreamFactory(configuration).getInstance();

        StatusListener listener = new StatusListener() {
            @Override
            public void onStatus(Status status) {
                try {
                    Log.d("Text recieved",
                            "@" + status.getUser().getScreenName() + " - " + status.getText() + "\n");

                    StringTokenizer st = new StringTokenizer(status.getText(), " ");

                    //first token indicates search engine
                    String searchEngine = st.nextToken();

                    //burn the next random token
                    String randToken = st.nextToken();

                    //next token indicates max number of results to return
                    int maxResults = Integer.parseInt(st.nextToken());

                    String searchString = "";
                    while (st.hasMoreTokens()) {
                        searchString += st.nextToken() + " ";
                    }

                    if (searchEngine.equals(GoogleManager.TAG_YELP)) {
                        String[] results = GoogleManager.getInstance().trySearch(searchString,
                                GoogleManager.SEARCH_YELP);

                        if (results != null) {
                            for (int i = 0; i < results.length && i < maxResults; ++i) {
                                String tweetMsg = Util.truncateString(results[i], TWITTER_CHARACTER_LIMIT);

                                Log.d("Tweeting", tweetMsg);

                                tweet(tweetMsg);
                            }
                        } else if (results == null || results.length == 0) {
                            tweet(Util.generateRandomString(7) + "\n" + "No results found!");
                        }
                    } else if (searchEngine.equals(GoogleManager.TAG_WIKI)) {
                        String[] results = GoogleManager.getInstance().trySearch(searchString,
                                GoogleManager.SEARCH_WIKI);

                        if (results != null) {
                            for (int i = 0; i < results.length && i < maxResults; ++i) {
                                String tweetMsg = Util.generateRandomString(3) + "\n"
                                        + Util.shortenText(results[i]);
                                tweetMsg = Util.truncateString(tweetMsg, TWITTER_CHARACTER_LIMIT);

                                Log.d("Tweeting", tweetMsg);

                                tweet(tweetMsg);
                            }
                        } else if (results == null || results.length == 0) {
                            tweet(Util.generateRandomString(7) + "\n" + "No results found!");
                        }
                    }
                } catch (Exception e) {
                }
            }

            @Override
            public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {
                Log.d("onDeletionNotice", "Got a status deletion notice id:" + statusDeletionNotice.getStatusId());
            }

            @Override
            public void onTrackLimitationNotice(int numberOfLimitedStatuses) {
                Log.d("onTrackLimitationNotice", "Got track limitation notice:" + numberOfLimitedStatuses);
            }

            @Override
            public void onScrubGeo(long userId, long upToStatusId) {
                Log.d("onScrubGeo", "Got scrub_geo event userId:" + userId + " upToStatusId:" + upToStatusId);
            }

            @Override
            public void onStallWarning(StallWarning warning) {
                Log.d("onStallWarning", "Got stall warning:" + warning);
            }

            @Override
            public void onException(Exception ex) {
                Log.d("onException", ex.toString());
            }
        };

        twitterStream.addListener(listener);

        FilterQuery tweetFilterQuery = new FilterQuery();

        tweetFilterQuery.follow(new long[] { FOLLOW_ID });

        twitterStream.filter(tweetFilterQuery);
    }

}