Upload images from the connected camera every 10 minutes with help of Phybots and Twitter4j libraries.

TwitterCam.java

import twitter4j.*;
import twitter4j.auth.*;

import java.awt.image.BufferedImage;
import java.io.*;
import java.util.Date;

import javax.imageio.ImageIO;

import com.phybots.service.Camera;
import com.phybots.service.ImageProvider.ImageListener;

/**
 * Upload images from the connected camera every 10 minutes.
 * 
 * <dl>
 * <dt>Required libraries:</dt>
 *  <dd><ul>
 *		<li>phybots-core-*.jar, capture-*.jar from <a href="http://phybots.com">http://phybots.com</a></li>
 *		<li>dsj.jar, dsj.dll (for Windows) from <a href="http://www.humatic.de/htools/dsj.htm">http://www.humatic.de/htools/dsj.htm</a></li>
 *		<li>twitter4j-core-*.jar, twitter4j-media-support-*.jar from <a href="http://twitter4j.org">http://twitter4j.org</a></li>
 * 		</ul></dd>
 * <dt>Other requirements:</dt>
 *	<dd>Twitter consumer key and secret, access token and access token secret
 *	from <a href="http://dev.twitter.com">http://dev.twitter.com</a></dd>
 * </dl>
 * 
 * @author Jun Kato
 */
public class TwitterCam {
	public static final String CONSUMER_KEY = "*";
	public static final String CONSUMER_SECRET = "*";
	public static final String ACCESS_TOKEN = "*";
	public static final String ACCESS_TOKEN_SECRET = "*";	
	private int lastMinute = 0;

	public static void main(String[] args) throws Exception {
		new TwitterCam(args);
	}
	
	public TwitterCam(String[] args) {

		// Start capturing images from the camera.
		Camera camera = new Camera();
		camera.start();
		camera.addImageListener(new ImageListener() {
			
			@SuppressWarnings("deprecation")
			public void imageUpdated(BufferedImage image) {
				Date date = new Date();
				if (lastMinute == date.getMinutes())
					return;
				if (date.getMinutes() % 5 != 0)
					return;
				
				// Save the captured image as a file every 5 minutes.
				lastMinute = date.getMinutes();
				String fileName = date.getYear() + "-"
					+ date.getMonth() + "_" + date.getDay() + "-"
					+ date.getHours() + "_" + date.getMinutes() + ".jpg";
				File file = new File(fileName);
				try {
					ImageIO.write(image, "JPEG", file);
				} catch (IOException e) {
					e.printStackTrace();
				}
				if (date.getMinutes() % 10 != 0)
					return;

				// Post the captured image to Twitter every 10 minutes.
				final Twitter twitter = new TwitterFactory().getInstance();
				twitter.setOAuthConsumer(CONSUMER_KEY, CONSUMER_SECRET);
				twitter.setOAuthAccessToken(new AccessToken(ACCESS_TOKEN, ACCESS_TOKEN_SECRET));
				final StatusUpdate status = new StatusUpdate(
						date.getHours() + ":" + date.getMinutes() + " #christmas");
				status.media(file);
				try {
					twitter.updateStatus(status);
				} catch (TwitterException e) {
					e.printStackTrace();
				}
			}
		});
	}
}