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/*
* Copyright (c) 2017, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "resumption/last_state_impl.h"
#include "utils/file_system.h"
#include "utils/jsoncpp_reader_wrapper.h"
#include "utils/logger.h"
namespace resumption {
SDL_CREATE_LOG_VARIABLE("Resumption")
LastStateImpl::LastStateImpl(const std::string& app_storage_folder,
const std::string& app_info_storage)
: app_storage_folder_(app_storage_folder)
, app_info_storage_(app_info_storage) {
LoadFromFileSystem();
SDL_LOG_AUTO_TRACE();
}
LastStateImpl::~LastStateImpl() {
SDL_LOG_AUTO_TRACE();
SaveToFileSystem();
}
void LastStateImpl::SaveToFileSystem() {
SDL_LOG_AUTO_TRACE();
std::string styled_string;
{
sync_primitives::AutoLock lock(dictionary_lock_);
styled_string = dictionary_.toStyledString();
}
#ifdef __ANDROID__
const std::string full_path = app_info_storage_;
#else
const std::string full_path =
!app_storage_folder_.empty()
? app_storage_folder_ + "/" + app_info_storage_
: app_info_storage_;
#endif
const std::vector<uint8_t> char_vector_pdata(styled_string.begin(),
styled_string.end());
DCHECK(file_system::CreateDirectoryRecursively(app_storage_folder_));
SDL_LOG_INFO("LastState::SaveToFileSystem " << app_info_storage_
<< full_path);
DCHECK(file_system::Write(full_path, char_vector_pdata));
}
void LastStateImpl::LoadFromFileSystem() {
const std::string full_path =
!app_storage_folder_.empty()
? app_storage_folder_ + "/" + app_info_storage_
: app_info_storage_;
std::string buffer;
const bool result = file_system::ReadFile(full_path, buffer);
utils::JsonReader reader;
if (result && reader.parse(buffer, &dictionary_)) {
SDL_LOG_INFO("Valid last state was found." << dictionary_.toStyledString());
return;
}
SDL_LOG_WARN("No valid last state was found.");
}
void LastStateImpl::RemoveFromFileSystem() {
SDL_LOG_AUTO_TRACE();
if (!file_system::DeleteFile(app_info_storage_)) {
SDL_LOG_WARN("Failed attempt to delete " << app_info_storage_);
}
}
Json::Value LastStateImpl::dictionary() const {
sync_primitives::AutoLock lock(dictionary_lock_);
return dictionary_;
}
void LastStateImpl::set_dictionary(const Json::Value& dictionary) {
DCHECK(dictionary.type() == Json::objectValue ||
dictionary.type() == Json::nullValue);
sync_primitives::AutoLock lock(dictionary_lock_);
dictionary_ = dictionary;
}
} // namespace resumption
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