Program Listing for File serialize.hpp

            

            
/*
* SPDX-FileCopyrightText: Copyright (c) 2021-2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#pragma once

#include "morpheus/messages/control.hpp"
#include "morpheus/messages/meta.hpp" // for MessageMeta
#include "morpheus/messages/multi.hpp"

#include <boost/fiber/context.hpp>
#include <mrc/segment/builder.hpp>
#include <mrc/segment/object.hpp>
#include <pymrc/node.hpp>
#include <rxcpp/rx.hpp> // for apply, make_subscriber, observable_member, is_on_error<>::not_void, is_on_next_of<>::not_void, from

#include <memory>
#include <regex>
#include <string>
#include <thread>
#include <vector> // for vector

// IWYU pragma: no_include "rxcpp/sources/rx-iterate.hpp"

namespace morpheus {
/****** Component public implementations *******************/
/****** SerializeStage********************************/

#pragma GCC visibility push(default)
template <typename InputT>
class SerializeStage : public mrc::pymrc::PythonNode<std::shared_ptr<InputT>, std::shared_ptr<MessageMeta>>
{
  public:
    using base_t = mrc::pymrc::PythonNode<std::shared_ptr<InputT>, std::shared_ptr<MessageMeta>>;
    using typename base_t::sink_type_t;
    using typename base_t::source_type_t;
    using typename base_t::subscribe_fn_t;

    SerializeStage(const std::vector<std::string>& include,
                   const std::vector<std::string>& exclude,
                   bool fixed_columns = true);

  private:
    void make_regex_objs(const std::vector<std::string>& regex_strs, std::vector<std::regex>& regex_objs);

    bool match_column(const std::vector<std::regex>& patterns, const std::string& column) const;

    bool include_column(const std::string& column) const;

    bool exclude_column(const std::string& column) const;

    std::shared_ptr<SlicedMessageMeta> get_meta(sink_type_t& msg);

    subscribe_fn_t build_operator();

    bool m_fixed_columns;
    std::vector<std::regex> m_include;
    std::vector<std::regex> m_exclude;
    std::vector<std::string> m_column_names;
};

using SerializeStageMM = SerializeStage<MultiMessage>;    // NOLINT(readability-identifier-naming)
using SerializeStageCM = SerializeStage<ControlMessage>;  // NOLINT(readability-identifier-naming)

/****** WriteToFileStageInterfaceProxy******************/
struct SerializeStageInterfaceProxy
{
    static std::shared_ptr<mrc::segment::Object<SerializeStageMM>> init_mm(mrc::segment::Builder& builder,
                                                                           const std::string& name,
                                                                           const std::vector<std::string>& include,
                                                                           const std::vector<std::string>& exclude,
                                                                           bool fixed_columns = true);

    static std::shared_ptr<mrc::segment::Object<SerializeStageCM>> init_cm(mrc::segment::Builder& builder,
                                                                           const std::string& name,
                                                                           const std::vector<std::string>& include,
                                                                           const std::vector<std::string>& exclude,
                                                                           bool fixed_columns = true);
};

#pragma GCC visibility pop// end of group
}  // namespace morpheus