FtpClient


1   /*
2    * Copyright 2002-2005 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.commons.vfs.provider.ftp;
17  
18  import org.apache.commons.net.ftp.FTPFile;
19  import org.apache.commons.vfs.FileSystemException;
20  
21  import java.io.IOException  ;
22  import java.io.InputStream  ;
23  import java.io.OutputStream  ;
24  
25  /**
26   * What VFS expects from an ftp client to provide.
27   */
28  public interface FtpClient
29  {
30      boolean isConnected() throws FileSystemException;
31  
32      void disconnect() throws IOException  ;
33  
34      FTPFile[] listFiles(String   key, String   relPath) throws IOException  ;
35  
36      boolean removeDirectory(String   relPath) throws IOException  ;
37  
38      boolean deleteFile(String   relPath) throws IOException  ;
39  
40      boolean rename(String   oldName, String   newName) throws IOException  ;
41  
42      boolean makeDirectory(String   relPath) throws IOException  ;
43  
44      boolean completePendingCommand() throws IOException  ;
45  
46      InputStream   retrieveFileStream(String   relPath) throws IOException  ;
47  
48      InputStream   retrieveFileStream(String   relPath, long restartOffset) throws IOException  ;
49  
50      OutputStream   appendFileStream(String   relPath) throws IOException  ;
51  
52      OutputStream   storeFileStream(String   relPath) throws IOException  ;
53  
54      public boolean abort() throws IOException  ;
55  
56      public String   getReplyString() throws IOException  ;
57  }
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