Simple (Twitter + Streaming + API Java + OAuth) exemple

import java.io.BufferedReader;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import oauth.signpost.OAuthConsumer;
import oauth.signpost.commonshttp.CommonsHttpOAuthConsumer;
/**
* A hacky little class illustrating how to receive and store Twitter streams
* for later analysis, requires Apache Commons HTTP Client 4+. Stores the data
* in 64MB long JSON files.
* 
* Usage:
* 
* TwitterConsumer t = new TwitterConsumer("username", "password",
*      "http://stream.twitter.com/1/statuses/sample.json", "sample");
* t.start();
*/
public class TwitterConsumer extends Thread {
//
static String STORAGE_DIR = "/tmp";
static long BYTES_PER_FILE = 64 * 1024 * 1024;
//
public long Messages = 0;
public long Bytes = 0;
public long Timestamp = 0;
private String accessToken = "";
private String accessSecret = "";
private String consumerKey = "";
private String consumerSecret = ""; 
private String feedUrl;
private String filePrefix;
boolean isRunning = true;
File file = null;
FileWriter fw = null;
long bytesWritten = 0;
public static void main(String[] args) {
TwitterConsumer t = new TwitterConsumer(
"XXX", 
"XXX",
"XXX",
"XXX",
"http://stream.twitter.com/1/statuses/sample.json", "sample");
t.start();
}
public TwitterConsumer(String accessToken, String accessSecret, String consumerKey, String consumerSecret, String url, String prefix) {
this.accessToken = accessToken;
this.accessSecret = accessSecret;
this.consumerKey = consumerKey;
this.consumerSecret = consumerSecret;
feedUrl = url;
filePrefix = prefix;
Timestamp = System.currentTimeMillis();
}
/**
* @throws IOException
*/
private void rotateFile() throws IOException {
//Handle the existing file
if (fw != null)
fw.close();
//Create the next file
file = new File(STORAGE_DIR, filePrefix + "-"
+ System.currentTimeMillis() + ".json");
bytesWritten = 0;
fw = new FileWriter(file);
System.out.println("Writing to " + file.getAbsolutePath());
}
/**
* @see java.lang.Thread#run()
*/
public void run() {
//Open the initial file
try { rotateFile(); } catch (IOException e) { e.printStackTrace(); return; }
//Run loop
while (isRunning) {
try {
OAuthConsumer consumer = new CommonsHttpOAuthConsumer(consumerKey, consumerSecret);
consumer.setTokenWithSecret(accessToken, accessSecret);
HttpGet request = new HttpGet(feedUrl);
consumer.sign(request);
DefaultHttpClient client = new DefaultHttpClient();
HttpResponse response = client.execute(request);
BufferedReader reader = new BufferedReader(
new InputStreamReader(response.getEntity().getContent()));
while (true) {
String line = reader.readLine();
if (line == null)
break;
if (line.length() > 0) {
if (bytesWritten + line.length() + 1 > BYTES_PER_FILE)
rotateFile();
fw.write(line + "\n");
bytesWritten += line.length() + 1;
Messages++;
Bytes += line.length() + 1;
}
}
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("Sleeping before reconnect...");
try { Thread.sleep(15000); } catch (Exception e) { }
}
}
}
}