Java DataObjectFactory.getRawJSON方法代码示例

import twitter4j.json.DataObjectFactory; //导入方法依赖的package包/类
/**
 * Usage: java twitter4j.examples.json.SaveRawJSON
 *
 * @param args String[]
 */
public static void main(String[] args) {
    Twitter twitter = new TwitterFactory().getInstance();
    System.out.println("Saving public timeline.");
    try {
        new File("statuses").mkdir();
        List<Status> statuses = twitter.getHomeTimeline();
        for (Status status : statuses) {
            String rawJSON = DataObjectFactory.getRawJSON(status);
            String fileName = "statuses/" + status.getId() + ".json";
            storeJSON(rawJSON, fileName);
            System.out.println(fileName + " - " + status.getText());
        }
        System.out.print("\ndone.");
        System.exit(0);
    } catch (IOException ioe) {
        ioe.printStackTrace();
        System.out.println("Failed to store tweets: " + ioe.getMessage());
    } catch (TwitterException te) {
        te.printStackTrace();
        System.out.println("Failed to get timeline: " + te.getMessage());
        System.exit(-1);
    }
}
 

import twitter4j.json.DataObjectFactory; //导入方法依赖的package包/类
public void onStatus(Status status) {
        this.status = status;
        String json = DataObjectFactory.getRawJSON(status);
        try {
            assertNotNull(json);
            Status statusFromJSON = DataObjectFactory.createStatus(json);
            assertEquals(status, statusFromJSON);
        } catch (TwitterException e) {
            e.printStackTrace();
        }
//        System.out.println("got status from stream:" + status.toString());
        assertNotNull(status.getText());
//        System.out.println(status.getCreatedAt() + ":" + status.getText() + " from:" + status.getSource());
        notifyResponse();
    }
 

import twitter4j.json.DataObjectFactory; //导入方法依赖的package包/类
protected void open(final String tweetDump) {
	openWriter(tweetDump + ".0");
	
	listener = new StatusListener(){
		public void onStatus(Status status) {
			try {
				String line = DataObjectFactory.getRawJSON(status);
				writer.append(line);
				writer.newLine();
				currentFileSize += line.length();
				if (maxJsonFileSize > 0){
					if (currentFileSize >= maxJsonFileSize*1024){
						closeWriter();
						fileCounter++;
						currentFileSize = 0;
						openWriter(tweetDump + "." + fileCounter);
					}
				}
			} catch (IOException e){
				e.printStackTrace();
				closeWriter();
			}
		}
		public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {}
		public void onTrackLimitationNotice(int numberOfLimitedStatuses) {}
		public void onException(Exception ex) {
			ex.printStackTrace();
		}
		@Override
		public void onScrubGeo(long arg0, long arg1) {
		}
		@Override
		public void onStallWarning(StallWarning arg0) {
			//System.out.println(arg0.toString());
		}
	};
	Runtime.getRuntime().addShutdownHook(new Shutdown(this));
}
 

import twitter4j.json.DataObjectFactory; //导入方法依赖的package包/类
@Override
public void start() {
	
	// The StatusListener is a twitter4j API, which can be added to a Twitter
	// stream, and will execute methods every time a message comes in through
	// the stream.
	StatusListener listener = new StatusListener() {
		// The onStatus method is executed every time a new tweet comes in.
		// We want to produce a new message when this happens.
		public void onStatus(Status status) {
			LOG.debug(status.getUser().getScreenName() + ": "
					+ status.getText());
			
			// Create a key based on the time and the message is the raw json of the tweet.
			String key = String.valueOf(status.getCreatedAt().getTime());
			String msg = DataObjectFactory.getRawJSON(status);
			
            KeyedMessage<String, String> data = new KeyedMessage<String, String>(topic, key, msg);
            
            producer.send(data);
		}

		// This listener will ignore everything except for new tweets
		public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {}
		public void onTrackLimitationNotice(int numberOfLimitedStatuses) {}
		public void onScrubGeo(long userId, long upToStatusId) {}
		public void onException(Exception ex) {
			LOG.error("TwitterStreamException: {}", ex);
		}
		public void onStallWarning(StallWarning warning) {
			LOG.warn("StallWarning: {}", warning);
		}
	};

	LOG.debug("Setting up Twitter filter stream using the following keywords: {}",
			(Object [])keywords);
	
	// Set up the stream's listener (defined above),
	twitterStream.addListener(listener);

	// Create a filtered query and start the stream.
	FilterQuery query = new FilterQuery().track(keywords);
	twitterStream.filter(query);
}
 

import twitter4j.json.DataObjectFactory; //导入方法依赖的package包/类
public static void main(String[] args)  throws TwitterException, IOException {

		// Host and Port 
        MongoClient m = new MongoClient( "localhost" , 27017 );


        // DB Name
        DB db = m.getDB("Foo");

        // Collection Name
        final DBCollection coll = db.getCollection("Bar");


        ConfigurationBuilder cb = new ConfigurationBuilder();
        cb.setDebugEnabled(true);
        cb.setJSONStoreEnabled(true);

        // Get them from twitter dev site
        cb.setOAuthConsumerKey("");
        cb.setOAuthConsumerSecret("");
        cb.setOAuthAccessToken("");
        cb.setOAuthAccessTokenSecret("");
        TwitterStream twitterStream = new TwitterStreamFactory(cb.build()).getInstance();

        StatusListener listener = new StatusListener() {

            @Override
            public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {
                //To change body of implemented methods use File | Settings | File Templates.
            }

            @Override
            public void onScrubGeo(long l, long l2) {
                //To change body of implemented methods use File | Settings | File Templates.
            }

            @Override
            public void onStallWarning(StallWarning stallWarning) {
                //To change body of implemented methods use File | Settings | File Templates.
            }

            @Override
            public void onException(Exception e) {
                //To change body of implemented methods use File | Settings | File Templates.
            }

            @Override
            public void onTrackLimitationNotice(int arg0) {
                // TODO Auto-generated method stub
            }

            @Override
            public void onStatus(Status status) {
                String json = DataObjectFactory.getRawJSON(status);
                //System.out.println(json);
                DBObject doc = (DBObject) JSON.parse(json);
                coll.insert(doc);

            }

        };

        FilterQuery fq = new FilterQuery();
        // upto 400 CSV keywords,#hashtags
        String tacking_strings[] = {"#android,app,#android app"};
        fq.track(tacking_strings);
        twitterStream.addListener(listener);
        twitterStream.filter(fq);

    }