Java et FTP, des cours en français.

	private long performBackup(Daemon d) throws Exception {
		// Connect to the ftp and retrieve the information
		FTPClient ftpClient = new FTPClient();
		long fileSize = 0;
		try {
			ftpClient.setRemoteHost(props.getProperty("ftp.ip"));
			ftpClient.setRemotePort(Integer.parseInt(props.getProperty("ftp.port")));
			ftpClient.setConnectMode(FTPConnectMode.ACTIVE);
			ftpClient.connect();
			ftpClient.login(props.getProperty("ftp.user"), props.getProperty("ftp.passwd"));

			// 5 mins for the timeout
			ftpClient.setTimeout(5 * 60 * 1000);
			ftpClient.setType(FTPTransferType.BINARY);
			//Date now = new Date();
			String remoteFileName = props.getProperty("remote.file").toLowerCase();

			String localFolderStr = props.getProperty("local.folder");
			FTPFile[] dirList = ftpClient.dirDetails(".");
			for (FTPFile  file : dirList) {
				if (file.getName().toLowerCase().startsWith(remoteFileName)) {
					d.logger.debug("Ftp get of " + file.getName());
					ftpClient.get(localFolderStr + "/" + file.getName(), file.getName());
					fileSize += new File(localFolderStr + "/" + file.getName()).length();
					d.logger.debug("Ftp get okay; Ftp delete of " + file.getName());
					ftpClient.delete(file.getName());
				}
			}
			// ftpClient.get(fileStr, remoteFileName);

			// okay, file was saved - now clean a little
			File localDir = new File(props.getProperty("local.folder"));
			String[] files = localDir.list();
			List<String> filesToDelete = new ArrayList<String>();
			for (String fileName : files) {
				if (fileName.toLowerCase().startsWith(remoteFileName)
						&& new File(localFolderStr + "/" + fileName).lastModified() < (new Date().getTime() - Long.parseLong(props
								.getProperty("retention.days")) * 24 * 3600 * 1000)) {
					filesToDelete.add(localFolderStr + "/" + fileName);
				}
			}
			for (Iterator iter = filesToDelete.iterator(); iter.hasNext();) {
				String aFile = (String) iter.next();
				new File(aFile).delete();
			}
		} catch (Exception exc) {
			throw exc;
		} finally {
			try {
				ftpClient.quit();
			} catch (Exception e1) {
			}
		}

		return fileSize;
	}