Program Listing for File serialize.hpp

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2021-2025, 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/export.h"              // for MORPHEUS_EXPORT
#include "morpheus/messages/control.hpp"  // for ControlMessage
#include "morpheus/messages/meta.hpp"     // for MessageMeta, SlicedMessageMeta

#include <boost/fiber/context.hpp>  // for operator<<
#include <mrc/segment/builder.hpp>  // for Builder
#include <mrc/segment/object.hpp>   // for Object
#include <pymrc/node.hpp>           // for PythonNode
#include <rxcpp/rx.hpp>             // for decay_t, trace_activity, from, observable_member

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

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

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

class MORPHEUS_EXPORT SerializeStage
  : public mrc::pymrc::PythonNode<std::shared_ptr<ControlMessage>, std::shared_ptr<MessageMeta>>
{
  public:
    using base_t = mrc::pymrc::PythonNode<std::shared_ptr<ControlMessage>, 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;
};

/****** WriteToFileStageInterfaceProxy******************/
struct MORPHEUS_EXPORT SerializeStageInterfaceProxy
{
    static std::shared_ptr<mrc::segment::Object<SerializeStage>> init(mrc::segment::Builder& builder,
                                                                      const std::string& name,
                                                                      const std::vector<std::string>& include,
                                                                      const std::vector<std::string>& exclude,
                                                                      bool fixed_columns = true);
};  // end of group
}  // namespace morpheus