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#include "Source.h"
18#include "io/FileSystem.h"
19#include "util/Files.h"
20#include "util/Maybe.h"
21#include "util/StringPiece.h"
22#include "util/Util.h"
23
24#include <utils/FileMap.h>
25
26namespace aapt {
27namespace io {
28
29RegularFile::RegularFile(const Source& source) : mSource(source) {
30}
31
32std::unique_ptr<IData> RegularFile::openAsData() {
33    android::FileMap map;
34    if (Maybe<android::FileMap> map = file::mmapPath(mSource.path, nullptr)) {
35        if (map.value().getDataPtr() && map.value().getDataLength() > 0) {
36            return util::make_unique<MmappedData>(std::move(map.value()));
37        }
38        return util::make_unique<EmptyData>();
39    }
40    return {};
41}
42
43const Source& RegularFile::getSource() const {
44    return mSource;
45}
46
47FileCollectionIterator::FileCollectionIterator(FileCollection* collection) :
48        mCurrent(collection->mFiles.begin()), mEnd(collection->mFiles.end()) {
49}
50
51bool FileCollectionIterator::hasNext() {
52    return mCurrent != mEnd;
53}
54
55IFile* FileCollectionIterator::next() {
56    IFile* result = mCurrent->second.get();
57    ++mCurrent;
58    return result;
59}
60
61IFile* FileCollection::insertFile(const StringPiece& path) {
62    return (mFiles[path.toString()] = util::make_unique<RegularFile>(Source(path))).get();
63}
64
65IFile* FileCollection::findFile(const StringPiece& path) {
66    auto iter = mFiles.find(path.toString());
67    if (iter != mFiles.end()) {
68        return iter->second.get();
69    }
70    return nullptr;
71}
72
73std::unique_ptr<IFileCollectionIterator> FileCollection::iterator() {
74    return util::make_unique<FileCollectionIterator>(this);
75}
76
77} // namespace io
78} // namespace aapt
79