me.timothy.twittertoreddit.TwitterToReddit.java Source code

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Here is the source code for me.timothy.twittertoreddit.TwitterToReddit.java

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/* 
This file is part of TwitterToReddit.
    
TwitterToReddit 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.
    
TwitterToReddit 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 TwitterToReddit.  If not, see http://www.gnu.org/licenses/
*/
package me.timothy.twittertoreddit;

import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.json.simple.parser.ParseException;

import twitter4j.Status;
import twitter4j.TwitterStream;
import twitter4j.UserStreamAdapter;
import twitter4j.UserStreamListener;

import com.github.jreddit.utils.restclient.HttpRestClient;

public class TwitterToReddit {
    public static final Pattern URL_PATTERN = Pattern
            .compile("(http://(bit\\.ly|t\\.co|lnkd\\.in|tcrn\\.ch)\\S*)\\b");
    private HttpRestClient restClient;
    private com.github.jreddit.user.User redditUser;
    private UserStreamListener listener;
    private long twitterId;
    private String subreddit;

    public TwitterToReddit(HttpRestClient restClient, com.github.jreddit.user.User redditUser, long twId,
            String sub) {
        this.restClient = restClient;
        this.redditUser = redditUser;
        this.twitterId = twId;
        this.subreddit = sub;

        listener = new UserStreamAdapter() {
            @Override
            public void onStatus(final Status status) {
                new Thread(new Runnable() {

                    @Override
                    public void run() {
                        postTweet(status);
                    }

                }).start();
            }

        };
    }

    public void postTweet(Status status) {
        if (status.getUser().getId() != twitterId)
            return;
        String text = status.getText();
        // Find the first hyperlink
        System.out.println(status.getUser().getName() + " - " + text);
        Matcher matcher = URL_PATTERN.matcher(text);
        if (matcher.find()) {
            String firstLink = matcher.group();
            System.out.println("  Link: " + firstLink);

            firstLink = LinkUnshortener.unshorten(restClient, firstLink);
            System.out.println("  Unshortened: " + firstLink);
            String realText = text.substring(0, matcher.start()).trim();

            try {
                redditUser.submitLink(realText, firstLink, subreddit);
            } catch (IOException | ParseException e) {
                e.printStackTrace();
                System.exit(1);
            }
        } else {
            System.out.println("  Failed to find link");
        }
    }

    public void beginStreaming(TwitterStream stream) {
        stream.addListener(listener);
    }

    public void stopStreaming(TwitterStream stream) {
        stream.removeListener(listener);
    }
}