1/*
2 * Copyright (C) 2015 The Android Open Source Project
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
17#ifndef AAPT_IO_FILESYSTEM_H
18#define AAPT_IO_FILESYSTEM_H
19
20#include "io/File.h"
21
22#include <map>
23
24namespace aapt {
25namespace io {
26
27/**
28 * A regular file from the file system. Uses mmap to open the data.
29 */
30class RegularFile : public IFile {
31public:
32    RegularFile(const Source& source);
33
34    std::unique_ptr<IData> openAsData() override;
35    const Source& getSource() const override;
36
37private:
38    Source mSource;
39};
40
41class FileCollection;
42
43class FileCollectionIterator : public IFileCollectionIterator {
44public:
45    FileCollectionIterator(FileCollection* collection);
46
47    bool hasNext() override;
48    io::IFile* next() override;
49
50private:
51    std::map<std::string, std::unique_ptr<IFile>>::const_iterator mCurrent, mEnd;
52};
53
54/**
55 * An IFileCollection representing the file system.
56 */
57class FileCollection : public IFileCollection {
58public:
59    /**
60     * Adds a file located at path. Returns the IFile representation of that file.
61     */
62    IFile* insertFile(const StringPiece& path);
63    IFile* findFile(const StringPiece& path) override;
64    std::unique_ptr<IFileCollectionIterator> iterator() override;
65
66private:
67    friend class FileCollectionIterator;
68    std::map<std::string, std::unique_ptr<IFile>> mFiles;
69};
70
71} // namespace io
72} // namespace aapt
73
74#endif // AAPT_IO_FILESYSTEM_H
75