Thread: Hey, I have a cachedownloading client, how do I make it download from the red bar?

Here's the cachedownloader file, it's a 614 client.

Code:

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JProgressBar;

public class CacheDownloader extends JPanel {

	/**
	 * 
	 */
	private static final long serialVersionUID = -4838881615456366747L;
	public String cacheLink = "http://dl.dropbox.com/u/44338767/Client_Cache.zip";
	public String saveDirectory = cachedir.findcachedir();
	public String fileToExtract = getSaveDirectory() + getFileName();
	public JProgressBar progressBar;
	public JFrame aJFrame;
	public int currentVersion = 1;

	public String getCacheLink() {
		return cacheLink;
	}

	public String getSaveDirectory() {
		return saveDirectory;
	}

	public int getCacheVersion() {
		return currentVersion;
	}

	public CacheDownloader() {
		progressBar = new JProgressBar(0, 100);
		add(progressBar);
		progressBar.setValue(0);
		progressBar.setStringPainted(true);
	}

	public void updateProgressBar(int value) {
		progressBar.setValue(value);
	}

	public CacheDownloader downloadCache() {
		try {
			File saveLocation = new File(getSaveDirectory());
			File versionLocation = new File(getSaveDirectory() + "CacheVersion" + getCacheVersion() + ".dat");
			if (!saveLocation.exists()) {
				downloadFile(getCacheLink(), getFileName());
				unZip();
				BufferedWriter versionFile = new BufferedWriter(new FileWriter(getSaveDirectory() + "CacheVersion" + getCacheVersion() + ".dat"));
				versionFile.close();
				deleteDownloadedZipFile(getFileName());
			} else {
				if (!versionLocation.exists()) {
					downloadFile(getCacheLink(), getFileName());
					unZip();
					BufferedWriter versionFile = new BufferedWriter(new FileWriter(getSaveDirectory() + "CacheVersion" + getCacheVersion() + ".dat"));
					versionFile.close();
					deleteDownloadedZipFile(getFileName());
				} else
					return null;
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return null;
	}

	public void downloadFile(String address, String fileName) {
		OutputStream fileDestination = null;
		URLConnection fileToDownload;
		InputStream readFileToDownload = null;
		CacheDownloader download = new CacheDownloader();
		JFrame frame = new JFrame("Downloading Cache");
		frame.setResizable(false);
		frame.setContentPane(download);
		frame.setSize(250, 60);
		frame.setVisible(true);
		frame.setLocationRelativeTo(null);
		try {
			URL url = new URL(address);
			fileDestination = new BufferedOutputStream(new FileOutputStream(getSaveDirectory() + fileName));
			fileToDownload = url.openConnection();
			readFileToDownload = fileToDownload.getInputStream();
			byte[] data = new byte[1024];
			int numRead;
			long numWritten = 0;
			int length = fileToDownload.getContentLength();
			while ((numRead = readFileToDownload.read(data)) != -1) {
				fileDestination.write(data, 0, numRead);
				numWritten += numRead;
				int percentage = (int)(((double)numWritten / (double)length) * 100D);
				download.updateProgressBar(percentage);
			}
			frame.setVisible(false);
			JOptionPane.showMessageDialog(this.aJFrame, "The Cache has finished downloading!");
		} catch (Exception exception) {
			exception.printStackTrace();
		} finally {
			try {
				if (readFileToDownload != null)
					readFileToDownload.close();
				if (fileDestination != null)
					fileDestination.close();
			} catch (IOException ioe) {
			}
		}
	}

	public String getFileName() {
		int lastSlashIndex = getCacheLink().lastIndexOf('/');
		if (lastSlashIndex >= 0 && lastSlashIndex < getCacheLink().length() -1)
			return getCacheLink().substring(lastSlashIndex + 1);
		return "";
	}

	public void deleteDownloadedZipFile(String fileName) {
		File f = new File(getSaveDirectory() + fileName);
		if (!f.exists())
			throw new IllegalArgumentException(
					"Delete: no such file or directory: " + fileName);
		if (!f.canWrite())
			throw new IllegalArgumentException("Delete: write protected: "
					+ fileName);
		if (f.isDirectory()) {
			String[] files = f.list();
			if (files.length > 0)
				throw new IllegalArgumentException(
						"Delete: directory not empty: " + fileName);
		}
		boolean success = f.delete();
		if (!success)
			throw new IllegalArgumentException("Delete: deletion failed");
	}

	public void unZip() {
		try {
			InputStream in = new BufferedInputStream(new FileInputStream(fileToExtract));
			ZipInputStream zin = new ZipInputStream(in);
			ZipEntry e;
			while ((e = zin.getNextEntry()) != null) {
				if (e.isDirectory()) {
					(new File(getSaveDirectory() + e.getName())).mkdir();
				} else {
					if (e.getName().equals(fileToExtract)) {
						unzip(zin, fileToExtract);
						break;
					}
					unzip(zin, getSaveDirectory() + e.getName());
				}
			}
			zin.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public void unzip(ZipInputStream zin, String s) throws IOException {
		FileOutputStream out = new FileOutputStream(s);
		byte[] b = new byte[1024];
		int len = 0;
		while ((len = zin.read(b)) != -1) {
			out.write(b, 0, len);
		}
		out.close();
	}
}