@Test
public void query() throws Exception {
System.setProperty("twitter4j.debug", "true");
TwitterPublicDataSource ds = new TwitterPublicDataSource();
QueryResult result = ds.query("bosch tools", "en");
FileOutputStream fos = new FileOutputStream("/tmp/tweet.dat");
ObjectOutputStream out = new ObjectOutputStream(fos);
out.writeObject(result);
out.close();
display(result);
List<Tweet> tweets = result.getTweets();
System.out.println("Number of tweet=" + tweets.size());
for (Tweet tweet : result.getTweets()) {
System.out.println(tweet.getFromUser() + ":" + tweet.getText());
}
}
/**
* Usage: java twitter4j.examples.search.SearchTweets [query]
*
* @param args
*/
public static void main(String[] args) {
Twitter twitter = new TwitterFactory().getInstance();
try {
Query q = new Query("War");
q.setRpp(100);
QueryResult result = twitter.search(q);
List<Tweet> tweets = result.getTweets();
for (Tweet tweet : tweets) {
System.out.println("@" + tweet.getFromUser() + " - " + tweet.getText());
}
System.exit(0);
} catch (TwitterException te) {
te.printStackTrace();
System.out.println("Failed to search tweets: " + te.getMessage());
System.exit(-1);
}
}
/** @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// Get the query and resultLimit parameters we are going to use for fetching the tweets.
Object queryObj = "google";
Object resultsLimit = "3";
// if(queryObj == null) {
// return;
// }
int limit = 5;
if (resultsLimit != null) {
try {
limit = Integer.parseInt((String) resultsLimit);
} catch (NumberFormatException e) {
// no need for action
}
}
String query = (String) queryObj;
Twitter twitter = new TwitterFactory().getInstance();
try {
// Search for the result tweets using the parameter query.
Query queryTweet = new Query(query);
QueryResult searchResult = twitter.search(queryTweet);
List<Tweet> tweets = searchResult.getTweets();
if (tweets.size() >= limit) {
tweets = tweets.subList(0, limit);
}
Long lastTweetId = null;
try {
lastTweetId = Long.parseLong((String) request.getParameter("lastTweetId"));
} catch (NumberFormatException e) {
lastTweetId = 0L;
}
// Iterate over the tweets and extract the information from each of them.
List<TwitterHolder> tweetTexts = new ArrayList<TwitterHolder>();
for (Tweet tweet : tweets) {
if (lastTweetId > 0 && tweet.getId() <= lastTweetId.longValue()) {
continue;
}
String text = tweet.getText();
// Find URLs in the tweet text and replace them with a html link to the founded URL.
Matcher matcher = pattern.matcher(text);
while (matcher.find()) {
String group = matcher.group();
StringBuilder replacedUrl =
new StringBuilder("<a href=\"")
.append(group)
.append("\">")
.append(group)
.append("</a>");
text = text.replaceAll(Pattern.quote(group), replacedUrl.toString());
}
Date publishedDate = tweet.getCreatedAt();
StringBuffer authorLink =
new StringBuffer("http://twitter.com/#!/").append(tweet.getFromUser());
/* Create TweetHolder instance and add it to the result list of TweetHolder instances.
* That's what is going to the template for rendering. */
tweetTexts.add(
new TwitterHolder(
text,
tweet.getFromUser(),
authorLink.toString(),
new PrettyTime(new Locale("en")).format(publishedDate),
tweet.getProfileImageUrl(),
tweet.getSource(),
String.valueOf(tweet.getId())));
}
Collections.reverse(tweetTexts);
String json = new Gson().toJson(tweetTexts);
// Add the result collection of TweetHolder instances to the response.
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json");
response.getWriter().append(json);
} catch (TwitterException e) {
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json");
response.getWriter().append("[]");
e.printStackTrace();
// return true;
return;
}
// return true;
}
public static int searchForTwits(int id, String text, Connection conn, String getDate)
throws TwitterException, SQLException, LangDetectException, ParseException {
Twitter twitter = new TwitterFactory().getInstance();
int countTweets = 0;
int pageNumber = 1;
int n = 0;
do {
Query query = new Query(text).rpp(100).page(pageNumber);
QueryResult result = twitter.search(query);
for (Tweet tweet : result.getTweets()) {
java.util.Date date = tweet.getCreatedAt();
Format formatter;
formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String newDate = formatter.format(date);
DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
java.util.Date oldDate = df.parse(getDate);
Statement input = conn.createStatement();
countTweets++;
if (date.after(oldDate)) {
Detector detector = DetectorFactory.create();
detector.append(tweet.getText());
String lang;
try {
lang = detector.detect();
if (lang.equals("lv") || lang.equals("ru")) {
try {
input.executeUpdate(
"INSERT INTO tweet "
+ "VALUES (null, '"
+ tweet.getId()
+ "', '"
+ tweet.getFromUser()
+ "', '"
+ tweet.getText().replace("'", "’")
+ "', '"
+ newDate
+ "', null, null, null)");
input.executeUpdate(
"INSERT INTO tweet_brand "
+ "VALUES (null, '"
+ tweet.getId()
+ "', '"
+ id
+ "')");
} catch (SQLException ex) {
}
n++;
} else continue;
} catch (LangDetectException ex) {
}
} else continue;
}
pageNumber++;
if (countTweets == 100) countTweets = 0;
else break;
} while (pageNumber != 16);
System.out.print(text + " ");
return n;
}
