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aa987e5c52
It contains flags to indicate whether Request was interrupted or failed, so dependent Requests may see that list is incomplete.
124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "backends/cloud/folderdownloadrequest.h"
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#include "common/debug.h"
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namespace Cloud {
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FolderDownloadRequest::FolderDownloadRequest(Storage *storage, Storage::FileArrayCallback callback, Common::String remoteDirectoryPath, Common::String localDirectoryPath, bool recursive):
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Request(nullptr), _storage(storage), _fileArrayCallback(callback),
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_remoteDirectoryPath(remoteDirectoryPath), _localDirectoryPath(localDirectoryPath), _recursive(recursive),
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_workingRequest(nullptr), _ignoreCallback(false) {
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start();
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}
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FolderDownloadRequest::~FolderDownloadRequest() {
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_ignoreCallback = true;
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if (_workingRequest) _workingRequest->finish();
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delete _fileArrayCallback;
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}
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void FolderDownloadRequest::start() {
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//cleanup
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_ignoreCallback = true;
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if (_workingRequest) _workingRequest->finish();
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_currentFile = StorageFile();
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_files.clear();
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_failedFiles.clear();
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_ignoreCallback = false;
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//list directory first
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_workingRequest = _storage->listDirectory(
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_remoteDirectoryPath,
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new Common::Callback<FolderDownloadRequest, Storage::ListDirectoryResponse>(this, &FolderDownloadRequest::directoryListedCallback),
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_recursive
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);
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}
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void FolderDownloadRequest::directoryListedCallback(Storage::ListDirectoryResponse pair) {
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if (_ignoreCallback) return;
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ListDirectoryStatus status = pair.value;
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if (status.failed || status.interrupted) {
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finish();
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return;
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}
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_files = pair.value.files;
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downloadNextFile();
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}
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void FolderDownloadRequest::fileDownloadedCallback(Storage::BoolResponse pair) {
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if (_ignoreCallback) return;
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if (!pair.value) _failedFiles.push_back(_currentFile);
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downloadNextFile();
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}
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void FolderDownloadRequest::downloadNextFile() {
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do {
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if (_files.empty()) {
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finishFiles(_failedFiles);
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return;
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}
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_currentFile = _files.back();
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_files.pop_back();
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} while (_currentFile.isDirectory()); //TODO: may be create these directories (in case those are empty)
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Common::String remotePath = _currentFile.path();
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Common::String localPath = remotePath;
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if (_remoteDirectoryPath == "" || remotePath.hasPrefix(_remoteDirectoryPath)) {
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localPath.erase(0, _remoteDirectoryPath.size());
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if (_remoteDirectoryPath != "" && (_remoteDirectoryPath.lastChar() != '/' && _remoteDirectoryPath.lastChar() != '\\'))
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localPath.erase(0, 1);
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} else {
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warning("Can't process the following paths:");
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warning("remote directory: %s", _remoteDirectoryPath.c_str());
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warning("remote file under that directory: %s", remotePath.c_str());
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}
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if (_localDirectoryPath != "") {
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if (_localDirectoryPath.lastChar() == '/' || _localDirectoryPath.lastChar() == '\\')
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localPath = _localDirectoryPath + localPath;
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else
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localPath = _localDirectoryPath + "/" + localPath;
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}
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debug("%s -> %s", remotePath.c_str(), localPath.c_str());
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_workingRequest = _storage->download(
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remotePath, localPath,
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new Common::Callback<FolderDownloadRequest, Storage::BoolResponse>(this, &FolderDownloadRequest::fileDownloadedCallback)
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);
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}
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void FolderDownloadRequest::finish() {
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//TODO: somehow indicate that request was interrupted
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Common::Array<StorageFile> files;
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finishFiles(files);
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}
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void FolderDownloadRequest::finishFiles(Common::Array<StorageFile> &files) {
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Request::finish();
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if (_fileArrayCallback) (*_fileArrayCallback)(Storage::FileArrayResponse(this, files));
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}
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} // End of namespace Cloud
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