use of twitter4j.StatusListener in project druid by druid-io.
the class TwitterSpritzerFirehoseFactory method connect.
@Override
public Firehose connect(InputRowParser parser) throws IOException {
final ConnectionLifeCycleListener connectionLifeCycleListener = new ConnectionLifeCycleListener() {
@Override
public void onConnect() {
log.info("Connected_to_Twitter");
}
@Override
public void onDisconnect() {
log.info("Disconnect_from_Twitter");
}
/**
* called before thread gets cleaned up
*/
@Override
public void onCleanUp() {
log.info("Cleanup_twitter_stream");
}
};
// ConnectionLifeCycleListener
final TwitterStream twitterStream;
final StatusListener statusListener;
final int QUEUE_SIZE = 2000;
/** This queue is used to move twitter events from the twitter4j thread to the druid ingest thread. */
final BlockingQueue<Status> queue = new ArrayBlockingQueue<Status>(QUEUE_SIZE);
final long startMsec = System.currentTimeMillis();
//
// set up Twitter Spritzer
//
twitterStream = new TwitterStreamFactory().getInstance();
twitterStream.addConnectionLifeCycleListener(connectionLifeCycleListener);
statusListener = new StatusListener() {
// This is what really gets called to deliver stuff from twitter4j
@Override
public void onStatus(Status status) {
// time to stop?
if (Thread.currentThread().isInterrupted()) {
throw new RuntimeException("Interrupted, time to stop");
}
try {
boolean success = queue.offer(status, 15L, TimeUnit.SECONDS);
if (!success) {
log.warn("queue too slow!");
}
} catch (InterruptedException e) {
throw new RuntimeException("InterruptedException", e);
}
}
@Override
public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {
//log.info("Got a status deletion notice id:" + statusDeletionNotice.getStatusId());
}
@Override
public void onTrackLimitationNotice(int numberOfLimitedStatuses) {
// This notice will be sent each time a limited stream becomes unlimited.
// If this number is high and or rapidly increasing, it is an indication that your predicate is too broad, and you should consider a predicate with higher selectivity.
log.warn("Got track limitation notice:" + numberOfLimitedStatuses);
}
@Override
public void onScrubGeo(long userId, long upToStatusId) {
//log.info("Got scrub_geo event userId:" + userId + " upToStatusId:" + upToStatusId);
}
@Override
public void onException(Exception ex) {
ex.printStackTrace();
}
@Override
public void onStallWarning(StallWarning warning) {
System.out.println("Got stall warning:" + warning);
}
};
twitterStream.addListener(statusListener);
// creates a generic StatusStream
twitterStream.sample();
log.info("returned from sample()");
return new Firehose() {
private final Runnable doNothingRunnable = new Runnable() {
public void run() {
}
};
private long rowCount = 0L;
private boolean waitIfmax = (getMaxEventCount() < 0L);
private final Map<String, Object> theMap = new TreeMap<>();
// DIY json parsing // private final ObjectMapper omapper = new ObjectMapper();
private boolean maxTimeReached() {
if (getMaxRunMinutes() <= 0) {
return false;
} else {
return (System.currentTimeMillis() - startMsec) / 60000L >= getMaxRunMinutes();
}
}
private boolean maxCountReached() {
return getMaxEventCount() >= 0 && rowCount >= getMaxEventCount();
}
@Override
public boolean hasMore() {
if (maxCountReached() || maxTimeReached()) {
return waitIfmax;
} else {
return true;
}
}
@Override
public InputRow nextRow() {
// Interrupted to stop?
if (Thread.currentThread().isInterrupted()) {
throw new RuntimeException("Interrupted, time to stop");
}
// all done?
if (maxCountReached() || maxTimeReached()) {
if (waitIfmax) {
// sleep a long time instead of terminating
try {
log.info("reached limit, sleeping a long time...");
Thread.sleep(2000000000L);
} catch (InterruptedException e) {
throw new RuntimeException("InterruptedException", e);
}
} else {
// allow this event through, and the next hasMore() call will be false
}
}
if (++rowCount % 1000 == 0) {
log.info("nextRow() has returned %,d InputRows", rowCount);
}
Status status;
try {
status = queue.take();
} catch (InterruptedException e) {
throw new RuntimeException("InterruptedException", e);
}
theMap.clear();
HashtagEntity[] hts = status.getHashtagEntities();
String text = status.getText();
theMap.put("text", (null == text) ? "" : text);
theMap.put("htags", (hts.length > 0) ? Lists.transform(Arrays.asList(hts), new Function<HashtagEntity, String>() {
@Nullable
@Override
public String apply(HashtagEntity input) {
return input.getText();
}
}) : ImmutableList.<String>of());
long[] lcontrobutors = status.getContributors();
List<String> contributors = new ArrayList<>();
for (long contrib : lcontrobutors) {
contributors.add(String.format("%d", contrib));
}
theMap.put("contributors", contributors);
GeoLocation geoLocation = status.getGeoLocation();
if (null != geoLocation) {
double lat = status.getGeoLocation().getLatitude();
double lon = status.getGeoLocation().getLongitude();
theMap.put("lat", lat);
theMap.put("lon", lon);
} else {
theMap.put("lat", null);
theMap.put("lon", null);
}
if (status.getSource() != null) {
Matcher m = sourcePattern.matcher(status.getSource());
theMap.put("source", m.find() ? m.group(1) : status.getSource());
}
theMap.put("retweet", status.isRetweet());
if (status.isRetweet()) {
Status original = status.getRetweetedStatus();
theMap.put("retweet_count", original.getRetweetCount());
User originator = original.getUser();
theMap.put("originator_screen_name", originator != null ? originator.getScreenName() : "");
theMap.put("originator_follower_count", originator != null ? originator.getFollowersCount() : "");
theMap.put("originator_friends_count", originator != null ? originator.getFriendsCount() : "");
theMap.put("originator_verified", originator != null ? originator.isVerified() : "");
}
User user = status.getUser();
final boolean hasUser = (null != user);
theMap.put("follower_count", hasUser ? user.getFollowersCount() : 0);
theMap.put("friends_count", hasUser ? user.getFriendsCount() : 0);
theMap.put("lang", hasUser ? user.getLang() : "");
// resolution in seconds, -1 if not available?
theMap.put("utc_offset", hasUser ? user.getUtcOffset() : -1);
theMap.put("statuses_count", hasUser ? user.getStatusesCount() : 0);
theMap.put("user_id", hasUser ? String.format("%d", user.getId()) : "");
theMap.put("screen_name", hasUser ? user.getScreenName() : "");
theMap.put("location", hasUser ? user.getLocation() : "");
theMap.put("verified", hasUser ? user.isVerified() : "");
theMap.put("ts", status.getCreatedAt().getTime());
List<String> dimensions = Lists.newArrayList(theMap.keySet());
return new MapBasedInputRow(status.getCreatedAt().getTime(), dimensions, theMap);
}
@Override
public Runnable commit() {
// reuse the same object each time
return doNothingRunnable;
}
@Override
public void close() throws IOException {
log.info("CLOSE twitterstream");
// invokes twitterStream.cleanUp()
twitterStream.shutdown();
}
};
}
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