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