1 | /******************************************************************** |
2 | * Copyright (c) 2013 - 2014, Pivotal Inc. |
3 | * All rights reserved. |
4 | * |
5 | * Author: Zhanwei Wang |
6 | ********************************************************************/ |
7 | /******************************************************************** |
8 | * 2014 - |
9 | * open source under Apache License Version 2.0 |
10 | ********************************************************************/ |
11 | /** |
12 | * Licensed to the Apache Software Foundation (ASF) under one |
13 | * or more contributor license agreements. See the NOTICE file |
14 | * distributed with this work for additional information |
15 | * regarding copyright ownership. The ASF licenses this file |
16 | * to you under the Apache License, Version 2.0 (the |
17 | * "License"); you may not use this file except in compliance |
18 | * with the License. You may obtain a copy of the License at |
19 | * |
20 | * http://www.apache.org/licenses/LICENSE-2.0 |
21 | * |
22 | * Unless required by applicable law or agreed to in writing, software |
23 | * distributed under the License is distributed on an "AS IS" BASIS, |
24 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
25 | * See the License for the specific language governing permissions and |
26 | * limitations under the License. |
27 | */ |
28 | #ifndef _HDFS_LIBHFDS3_CLIENT_DIRECTORY_ITERATOR_H_ |
29 | #define _HDFS_LIBHFDS3_CLIENT_DIRECTORY_ITERATOR_H_ |
30 | |
31 | #include "FileStatus.h" |
32 | #include <vector> |
33 | |
34 | namespace Hdfs { |
35 | namespace Internal { |
36 | class FileSystemImpl; |
37 | } |
38 | |
39 | class DirectoryIterator { |
40 | public: |
41 | DirectoryIterator(); |
42 | DirectoryIterator(Hdfs::Internal::FileSystemImpl * const fs, |
43 | std::string path, bool needLocations); |
44 | DirectoryIterator(const DirectoryIterator & it); |
45 | DirectoryIterator & operator = (const DirectoryIterator & it); |
46 | bool hasNext(); |
47 | FileStatus getNext(); |
48 | |
49 | private: |
50 | bool getListing(); |
51 | |
52 | private: |
53 | bool needLocations; |
54 | Hdfs::Internal::FileSystemImpl * filesystem; |
55 | size_t next; |
56 | std::string path; |
57 | std::string startAfter; |
58 | std::vector<FileStatus> lists; |
59 | }; |
60 | |
61 | } |
62 | |
63 | #endif /* _HDFS_LIBHFDS3_CLIENT_DIRECTORY_ITERATOR_H_ */ |
64 | |