AddModelFromBlobTask.h

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/*
 * Copyright (c) 2015-2024, EPFL/Blue Brain Project
 * All rights reserved. Do not distribute without permission.
 * Responsible Author: Daniel.Nachbaur@epfl.ch
 *
 * This file is part of Blue Brain BioExplorer <https://github.com/BlueBrain/BioExplorer>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 3.0 as published
 * by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#pragma once
 
#include <platform/core/common/loader/Loader.h>
#include <platform/core/common/tasks/Task.h>
#include <platform/core/engineapi/Model.h>
 
namespace core
{
struct BinaryParam;
}
SERIALIZATION_ACCESS(BinaryParam)
 
namespace core
{
struct Chunk
{
    std::string id;
};
 
struct BinaryParam : ModelParams
{
    size_t size{0};   
    std::string type; 
    std::string chunksID;
    SERIALIZATION_FRIEND(BinaryParam)
};
 
class AddModelFromBlobTask : public Task<ModelDescriptorPtr>
{
public:
    AddModelFromBlobTask(const BinaryParam& param, Engine& engine);
 
    void appendBlob(const std::string& blob);
 
private:
    void _checkValidity(Engine& engine);
    void _cancel() final { _chunkEvent.set_exception(std::make_exception_ptr(async::task_canceled())); }
    float _progressBytes() const { return CHUNK_PROGRESS_WEIGHT * ((float)_receivedBytes / _param.size); }
 
    async::event_task<Blob> _chunkEvent;
    async::event_task<ModelDescriptorPtr> _errorEvent;
    std::vector<async::task<ModelDescriptorPtr>> _finishTasks;
    uint8_ts _blob;
    BinaryParam _param;
    size_t _receivedBytes{0};
    const float CHUNK_PROGRESS_WEIGHT{0.5f};
};
} // namespace core