| /* |
| * Copyright (C) 2018, Thomas Wolf <thomas.wolf@paranor.ch> and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| package org.eclipse.jgit.transport; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.Collection; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * An interface providing FTP operations over a {@link RemoteSession}. All |
| * operations are supposed to throw {@link FtpException} for remote file system |
| * errors and other IOExceptions on connection errors. |
| * |
| * @since 5.2 |
| */ |
| public interface FtpChannel { |
| |
| /** |
| * An {@link Exception} for reporting SFTP errors. |
| */ |
| static class FtpException extends IOException { |
| |
| private static final long serialVersionUID = 7176525179280330876L; |
| |
| public static final int OK = 0; |
| |
| public static final int EOF = 1; |
| |
| public static final int NO_SUCH_FILE = 2; |
| |
| public static final int NO_PERMISSION = 3; |
| |
| public static final int UNSPECIFIED_FAILURE = 4; |
| |
| public static final int PROTOCOL_ERROR = 5; |
| |
| public static final int UNSUPPORTED = 8; |
| |
| private final int status; |
| |
| public FtpException(String message, int status) { |
| super(message); |
| this.status = status; |
| } |
| |
| public FtpException(String message, int status, Throwable cause) { |
| super(message, cause); |
| this.status = status; |
| } |
| |
| public int getStatus() { |
| return status; |
| } |
| } |
| |
| /** |
| * Connects the {@link FtpChannel} to the remote end. |
| * |
| * @param timeout |
| * for establishing the FTP connection |
| * @param unit |
| * of the {@code timeout} |
| * @throws IOException |
| */ |
| void connect(int timeout, TimeUnit unit) throws IOException; |
| |
| /** |
| * Disconnects and {@link FtpChannel}. |
| */ |
| void disconnect(); |
| |
| /** |
| * @return whether the {@link FtpChannel} is connected |
| */ |
| boolean isConnected(); |
| |
| /** |
| * Changes the current remote directory. |
| * |
| * @param path |
| * target directory |
| * @throws IOException |
| * if the operation could not be performed remotely |
| */ |
| void cd(String path) throws IOException; |
| |
| /** |
| * @return the current remote directory path |
| * @throws IOException |
| */ |
| String pwd() throws IOException; |
| |
| /** |
| * Simplified remote directory entry. |
| */ |
| interface DirEntry { |
| String getFilename(); |
| |
| long getModifiedTime(); |
| |
| boolean isDirectory(); |
| } |
| |
| /** |
| * Lists contents of a remote directory |
| * |
| * @param path |
| * of the directory to list |
| * @return the directory entries |
| * @throws IOException |
| */ |
| Collection<DirEntry> ls(String path) throws IOException; |
| |
| /** |
| * Deletes a directory on the remote file system. The directory must be |
| * empty. |
| * |
| * @param path |
| * to delete |
| * @throws IOException |
| */ |
| void rmdir(String path) throws IOException; |
| |
| /** |
| * Creates a directory on the remote file system. |
| * |
| * @param path |
| * to create |
| * @throws IOException |
| */ |
| void mkdir(String path) throws IOException; |
| |
| /** |
| * Obtain an {@link InputStream} to read the contents of a remote file. |
| * |
| * @param path |
| * of the file to read |
| * |
| * @return the stream to read from |
| * @throws IOException |
| */ |
| InputStream get(String path) throws IOException; |
| |
| /** |
| * Obtain an {@link OutputStream} to write to a remote file. If the file |
| * exists already, it will be overwritten. |
| * |
| * @param path |
| * of the file to read |
| * |
| * @return the stream to read from |
| * @throws IOException |
| */ |
| OutputStream put(String path) throws IOException; |
| |
| /** |
| * Deletes a file on the remote file system. |
| * |
| * @param path |
| * to delete |
| * @throws IOException |
| * if the file does not exist or could otherwise not be deleted |
| */ |
| void rm(String path) throws IOException; |
| |
| /** |
| * Deletes a file on the remote file system. If the file does not exist, no |
| * exception is thrown. |
| * |
| * @param path |
| * to delete |
| * @throws IOException |
| * if the file exist but could not be deleted |
| */ |
| default void delete(String path) throws IOException { |
| try { |
| rm(path); |
| } catch (FileNotFoundException e) { |
| // Ignore; it's OK if the file doesn't exist |
| } catch (FtpException f) { |
| if (f.getStatus() == FtpException.NO_SUCH_FILE) { |
| return; |
| } |
| throw f; |
| } |
| } |
| |
| /** |
| * Renames a file on the remote file system. If {@code to} exists, it is |
| * replaced by {@code from}. (POSIX rename() semantics) |
| * |
| * @param from |
| * original name of the file |
| * @param to |
| * new name of the file |
| * @throws IOException |
| * @see <a href= |
| * "http://pubs.opengroup.org/onlinepubs/9699919799/functions/rename.html">stdio.h: |
| * rename()</a> |
| */ |
| void rename(String from, String to) throws IOException; |
| |
| } |