diff options
Diffstat (limited to 'dozentenmodul/src/main/java/ftp/FTPUtility.java')
| -rw-r--r-- | dozentenmodul/src/main/java/ftp/FTPUtility.java | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/dozentenmodul/src/main/java/ftp/FTPUtility.java b/dozentenmodul/src/main/java/ftp/FTPUtility.java deleted file mode 100644 index a7f48e4d..00000000 --- a/dozentenmodul/src/main/java/ftp/FTPUtility.java +++ /dev/null @@ -1,197 +0,0 @@ -package ftp; - -import java.io.File; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.security.NoSuchAlgorithmException; - -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; - this.ftpClient.setBufferSize(0); - } - - /** - * 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 server 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.NewName); - - // 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 |