mavenization on its way...

4 files changed, 419 insertions, 0 deletions

diff --git a/Dozentenmodul/src/main/java/ftp/DownloadTask.java b/Dozentenmodul/src/main/java/ftp/DownloadTask.java
new file mode 100644
index 00000000..83ad2c15
--- /dev/null
+++ b/Dozentenmodul/src/main/java/ftp/DownloadTask.java
@@ -0,0 +1,112 @@
+package ftp;
+
+import gui.image.FTPDownloader_GUI;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+
+import javax.swing.JOptionPane;
+import javax.swing.SwingWorker;
+
+/**
+ * Execute file download in a background thread and update the progress. 
+ * @author www.codejava.net
+ *
+ */
+public class DownloadTask extends SwingWorker<Void, Void> {
+
+	private static final int BUFFER_SIZE = 4096;
+	
+	private String host;
+	private int port;
+	private String username;
+	private String password;
+	
+	private String downloadPath;
+	private String saveDir;
+	
+	@SuppressWarnings("unused")
+	private FTPDownloader_GUI gui;
+	
+	public DownloadTask(String host, int port, String username,
+			String password, String downloadPath, String saveDir,
+			FTPDownloader_GUI gui) {
+		this.host = host;
+		this.port = port;
+		this.username = username;
+		this.password = password;
+		this.downloadPath = downloadPath;
+		this.saveDir = saveDir;
+		this.gui = gui;
+		
+	}
+
+	/**
+	 * Executed in background thread
+	 */	
+	@Override
+	protected Void doInBackground() throws Exception {
+		FTPUtility util = new FTPUtility(host, port, username, password);
+		try {
+			util.connect();
+			
+			byte[] buffer = new byte[BUFFER_SIZE];
+			int bytesRead = -1;
+			long totalBytesRead = 0;
+			int percentCompleted = 0;
+            long start=System.nanoTime();
+            final double NANOS_PER_SECOND = 1000000000.0;
+            final double BYTES_PER_MIB = 1024*1024;
+			long fileSize = util.getFileSize(downloadPath);
+			//gui.setFileSize(fileSize);
+			
+			String fileName = new File(downloadPath).getName();
+			
+			File downloadFile = new File(saveDir + File.separator + fileName);
+			FileOutputStream outputStream = new FileOutputStream(downloadFile);
+			
+			util.downloadFile(downloadPath);
+			InputStream inputStream = util.getInputStream();
+			
+			while ((bytesRead = inputStream.read(buffer)) != -1 && isCancelled()==false) {
+				outputStream.write(buffer, 0, bytesRead);
+				totalBytesRead += bytesRead;
+				//System.out.println(totalBytesRead);
+				double speed = NANOS_PER_SECOND / BYTES_PER_MIB * totalBytesRead / (System.nanoTime() - start + 1);
+				percentCompleted = (int) (totalBytesRead * 100 / fileSize);
+				setProgress(percentCompleted);
+				firePropertyChange("speed", 0, speed);
+				firePropertyChange("filesize", 0,fileSize);
+				firePropertyChange("bytesread", 0,totalBytesRead);
+				
+			}
+
+			outputStream.close();
+			
+			util.finish();
+		} catch (FTPException ex) {
+			JOptionPane.showMessageDialog(null, "Error downloading file: " + ex.getMessage(),
+					"Error", JOptionPane.ERROR_MESSAGE);			
+			ex.printStackTrace();
+			setProgress(0);
+			cancel(true);			
+		} finally {
+			util.disconnect();
+		}
+		
+		return null;
+	}
+
+	/**
+	 * Executed in Swing's event dispatching thread
+	 */
+	@Override
+	protected void done() {
+		if (!isCancelled()) {
+			JOptionPane.showMessageDialog(null,
+					"File has been downloaded successfully!", "Message",
+					JOptionPane.INFORMATION_MESSAGE);
+		}
+	}	
+}
\ No newline at end of file
diff --git a/Dozentenmodul/src/main/java/ftp/FTPException.java b/Dozentenmodul/src/main/java/ftp/FTPException.java
new file mode 100644
index 00000000..bc3193e0
--- /dev/null
+++ b/Dozentenmodul/src/main/java/ftp/FTPException.java
@@ -0,0 +1,8 @@
+package ftp;
+
+@SuppressWarnings("serial")
+public class FTPException extends Exception {
+	public FTPException(String message) {
+		super(message);
+	}
+}
\ No newline at end of file
diff --git a/Dozentenmodul/src/main/java/ftp/FTPUtility.java b/Dozentenmodul/src/main/java/ftp/FTPUtility.java
new file mode 100644
index 00000000..f2c51dfc
--- /dev/null
+++ b/Dozentenmodul/src/main/java/ftp/FTPUtility.java
@@ -0,0 +1,201 @@
+package ftp;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.SocketException;
+import java.security.NoSuchAlgorithmException;
+
+import javax.swing.JOptionPane;
+
+import models.Image;
+
+import org.apache.commons.net.ftp.FTP;
+import org.apache.commons.net.ftp.FTPFile;
+import org.apache.commons.net.ftp.FTPReply;
+import org.apache.commons.net.ftp.FTPSClient;
+
+
+/**
+ * A utility class that provides functionality for downloading files from a FTP
+ * server.
+ * 
+ * @author www.codejava.net
+ * 
+ */
+public class FTPUtility {
+
+	// FTP server information
+	private String host;
+	private int port;
+	private String username;
+	private String password;
+
+	private FTPSClient ftpClient = new FTPSClient();
+	private int replyCode;
+
+	private InputStream inputStream;
+	private OutputStream outputStream;
+
+	public FTPUtility(String host, int port, String user, String pass) {
+		this.host = host;
+		this.port = port;
+		this.username = user;
+		this.password = pass;
+	}
+
+	/**
+	 * Connect and login to the server.
+	 * 
+	 * @throws FTPException
+	 * @throws NoSuchAlgorithmException 
+	 */
+	public void connect() throws FTPException, NoSuchAlgorithmException {
+		try {
+			ftpClient.connect(host, port);
+			replyCode = ftpClient.getReplyCode();
+			if (!FTPReply.isPositiveCompletion(replyCode)) {
+				throw new FTPException("FTP serve refused connection.");
+			}
+			
+			
+			boolean logged = ftpClient.login(username, password);
+			if (!logged) {
+				// failed to login
+				ftpClient.execPROT("P");
+				ftpClient.disconnect();
+				throw new FTPException("Could not login to the server.");
+			}
+
+			ftpClient.enterLocalPassiveMode();
+
+		} catch (IOException ex) {
+			throw new FTPException("I/O error: " + ex.getMessage());
+		}
+	}
+
+	/**
+	 * Gets size (in bytes) of the file on the server.
+	 * 
+	 * @param filePath
+	 *            Path of the file on server
+	 * @return file size in bytes
+	 * @throws FTPException
+	 */
+	public long getFileSize(String filePath) throws FTPException {
+		try {
+			FTPFile file = ftpClient.mlistFile(filePath);
+			if (file == null) {
+				throw new FTPException("The file may not exist on the server!");
+			}
+			return file.getSize();
+		} catch (IOException ex) {
+			throw new FTPException("Could not determine size of the file: "
+					+ ex.getMessage());
+		}
+	}
+
+	/**
+	 * Start downloading a file from the server
+	 * 
+	 * @param downloadPath
+	 *            Full path of the file on the server
+	 * @throws FTPException
+	 *             if client-server communication error occurred
+	 */
+	public void downloadFile(String downloadPath) throws FTPException {
+		try {
+
+			boolean success = ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
+			if (!success) {
+				throw new FTPException("Could not set binary file type.");
+			}
+
+			inputStream = ftpClient.retrieveFileStream(downloadPath);
+
+			if (inputStream == null) {
+				throw new FTPException(
+						"Could not open input stream. The file may not exist on the server.");
+			}
+		} catch (IOException ex) {
+			throw new FTPException("Error downloading file: " + ex.getMessage());
+		}
+	}
+	
+	 
+    /**
+     * Start uploading a file to the server
+     * @param uploadFile the file to be uploaded
+     * @param destDir destination directory on the server
+     * where the file is stored
+     * @throws FTPException if client-server communication error occurred
+     */
+    public void uploadFile(File uploadFile, String destDir) throws FTPException {
+        try {
+            boolean success = ftpClient.changeWorkingDirectory(destDir);
+            if (!success) {
+                throw new FTPException("Could not change working directory to "
+                        + destDir + ". The directory may not exist.");
+            }
+             
+            success = ftpClient.setFileType(FTP.BINARY_FILE_TYPE);         
+            if (!success) {
+                throw new FTPException("Could not set binary file type.");
+            }
+            
+            outputStream = ftpClient.storeFileStream(Image.image.getNewName());
+            
+            //ftpClient.rename(uploadFile.getName(), );
+        } catch (IOException ex) {
+            throw new FTPException("Error uploading file: " + ex.getMessage());
+        }
+    }
+ 
+    /**
+     * Write an array of bytes to the output stream.
+     */
+    public void writeFileBytes(byte[] bytes, int offset, int length)
+            throws IOException {
+        outputStream.write(bytes, offset, length);
+    }
+
+	/**
+	 * Complete the download operation.
+	 */
+	public void finish() throws IOException {
+		inputStream.close();
+		ftpClient.completePendingCommand();
+	}
+
+	/**
+	 * Log out and disconnect from the server
+	 */
+	public void disconnect() throws FTPException {
+		if (ftpClient.isConnected()) {
+			try {
+				if (!ftpClient.logout()) {
+					throw new FTPException("Could not log out from the server");
+				}
+				ftpClient.disconnect();
+			} catch (IOException ex) {
+				throw new FTPException("Error disconnect from the server: "
+						+ ex.getMessage());
+			}
+		}
+	}
+
+	/**
+	 * Return InputStream of the remote file on the server.
+	 */
+	public InputStream getInputStream() {
+		return inputStream;
+	}
+	
+	public OutputStream getOutputStream() {
+		return outputStream;
+	}
+	
+	
+
+}
\ No newline at end of file
diff --git a/Dozentenmodul/src/main/java/ftp/UploadTask.java b/Dozentenmodul/src/main/java/ftp/UploadTask.java
new file mode 100644
index 00000000..06d76dc8
--- /dev/null
+++ b/Dozentenmodul/src/main/java/ftp/UploadTask.java
@@ -0,0 +1,98 @@
+package ftp;
+ 
+import java.io.File;
+import java.io.FileInputStream;
+ 
+import javax.swing.JOptionPane;
+import javax.swing.SwingWorker;
+
+import models.Image;
+ 
+/**
+ * Executes the file upload in a background thread and updates progress to
+ * listeners that implement the java.beans.PropertyChangeListener interface.
+ * @author www.codejava.net
+ *
+ */
+public class UploadTask extends SwingWorker<Void, Void> {
+    private static final int BUFFER_SIZE = 4096;
+     
+    private String host;
+    private int port;
+    private String username;
+    private String password;
+   
+    private String destDir;
+    private File uploadFile;
+     
+    public UploadTask(String host, int port, String username, String password,
+            String destDir, File uploadFile) {
+        this.host = host;
+        this.port = port;
+        this.username = username;
+        this.password = password;
+        this.destDir = destDir;
+        this.uploadFile = uploadFile;
+        
+    }
+ 
+    /**
+     * Executed in background thread
+     */
+    @Override
+    protected Void doInBackground() throws Exception {
+        FTPUtility util = new FTPUtility(host, port, username, password);
+        try {
+            util.connect();
+            util.uploadFile(uploadFile, destDir);
+             
+            FileInputStream inputStream = new FileInputStream(uploadFile);
+            byte[] buffer = new byte[BUFFER_SIZE];
+            int bytesRead = -1;
+            int i=0;
+            long totalBytesRead = 0;
+            int percentCompleted = 0;
+            long fileSize = uploadFile.length();
+            Image.image.setFilesize(fileSize);
+            long start=System.nanoTime();
+            final double NANOS_PER_SECOND = 1000000000.0;
+            final double BYTES_PER_MIB = 1024*1024;
+            while ((bytesRead = inputStream.read(buffer)) != -1 && isCancelled()==false) {
+            	util.writeFileBytes(buffer, 0, bytesRead);
+                totalBytesRead += bytesRead;
+                percentCompleted = (int) (totalBytesRead * 100 / fileSize);
+                double speed = NANOS_PER_SECOND / BYTES_PER_MIB * totalBytesRead / (System.nanoTime() - start + 1);
+                setProgress(percentCompleted);
+                firePropertyChange("speed", 0, speed);
+				firePropertyChange("filesize", 0,fileSize);
+				firePropertyChange("bytesread", 0,totalBytesRead);
+            }
+ 
+            inputStream.close();
+             
+            util.finish();
+        } catch (FTPException ex) {
+            JOptionPane.showMessageDialog(null, "Error uploading file: " + ex.getMessage(),
+                    "Error", JOptionPane.ERROR_MESSAGE);
+            ex.printStackTrace();
+            setProgress(0);
+            cancel(true);          
+        } finally {
+            util.disconnect();
+        }
+         
+        return null;
+    }
+ 
+    /**
+     * Executed in Swing's event dispatching thread
+     */
+    @Override
+    protected void done() {
+        if (!isCancelled()) {
+            JOptionPane.showMessageDialog(null,
+                    "File has been uploaded successfully!", "Message",
+                    JOptionPane.INFORMATION_MESSAGE);
+        }
+    }  
+}
\ No newline at end of file