Extract Tweets from Twitter - Java Social Media

Java examples for Social Media:Twitter

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Description

Extract Tweets from Twitter

Demo Code


import twitter4j.*;
import java.util.List;

import com.marklogic.tweetdeck.geo.ReverseGeoCode;

public class SearchTweets {
    /**/*w  w w.j a  v  a2s.co  m*/
     * Usage: java twitter4j.examples.search.SearchTweets [query]
     *
     * @param args
     *            search query
     */
    public static void main(String[] args) {
        // USAGE: java twitter4j.examples.search.SearchTweets [query]

        SearchTweets.GetSearchedTweets("NoSQL");
    }

    public static void GetSearchedTweets(String searchString) {

        Twitter twitter = new TwitterFactory().getInstance();
        double lat, lon = 0.0;

        try {
            Query query = new Query(searchString);
            QueryResult result = twitter.search(query);

            while ((query = result.nextQuery()) != null) {

                List<Status> tweets = result.getTweets();

                for (Status tweet : tweets) {

                    GeoLocation geoLoc = tweet.getGeoLocation();
                    Place p = tweet.getPlace();
                    System.out.println("USER LOCATION: "
                            + tweet.getUser().getLocation());
                    if (p != null) {
                        System.out
                                .println("Place Exists!!! " + p.getName());
                    }
                    if (geoLoc != null) {
                        System.out.println(tweet.getPlace().getName());
                        lat = tweet.getGeoLocation().getLatitude();
                        lon = tweet.getGeoLocation().getLongitude();
                        ReverseGeoCode.getGeoCode(Double.toString(lat),
                                Double.toString(lon));
                    } else {
                        lat = 0.0;
                        lon = 0.0;
                    }

                    System.out.println("@"
                            + tweet.getUser().getScreenName() + "lat:"
                            + lat + ", lon: " + lon + " - "
                            + tweet.getText());

                    //Store on DISK as JSON file for each Tweet.
                    String rawJSON = TwitterObjectFactory.getRawJSON(tweet);
                    String fileName = "json-tweets/" + tweet.getId()
                            + ".json";
                    if (rawJSON == null) {
                        System.out.println("WTF null JSON: " + rawJSON);
                    } else {
                        com.marklogic.tweetdeck.SaveRawJSON.storeJSON(
                                rawJSON, fileName);
                    }

                }
            }
        } catch (TwitterException te) {
            te.printStackTrace();
            System.out.println("Failed to search tweets: "
                    + te.getMessage());
        } catch (Exception e) {
            e.printStackTrace();
            System.out
                    .println("Failed to search tweets: " + e.getMessage());
        }
    }
}

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