Program Listing for File write_to_file.hpp

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#pragma once #include "morpheus/messages/meta.hpp" #include "morpheus/objects/file_types.hpp" #include <mrc/channel/status.hpp>// for Status #include <mrc/node/sink_properties.hpp>// for SinkProperties<>::sink_type_t #include <mrc/node/source_properties.hpp>// for SourceProperties<>::source_type_t #include <mrc/segment/builder.hpp> #include <mrc/segment/object.hpp>// for Object #include <pymrc/node.hpp> #include <rxcpp/rx.hpp> #include <fstream> #include <functional>// for function #include <memory> #include <string> #include <vector> namespace morpheus { /****** Component public implementations *******************/ /****** WriteToFileStage********************************/ #pragma GCC visibility push(default) class WriteToFileStage : public mrc::pymrc::PythonNode<std::shared_ptr<MessageMeta>, std::shared_ptr<MessageMeta>> { public: using base_t = mrc::pymrc::PythonNode<std::shared_ptr<MessageMeta>, 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; WriteToFileStage(const std::string &filename, std::ios::openmode mode = std::ios::out, FileTypes file_type = FileTypes::Auto, bool include_index_col = true); private: void close(); void write_json(sink_type_t &msg); void write_csv(sink_type_t &msg); subscribe_fn_t build_operator(); bool m_is_first{}; bool m_include_index_col; std::ofstream m_fstream; std::function<void(sink_type_t &)> m_write_func; }; /****** WriteToFileStageInterfaceProxy******************/ struct WriteToFileStageInterfaceProxy { static std::shared_ptr<mrc::segment::Object<WriteToFileStage>> init(mrc::segment::Builder& builder, const std::string& name, const std::string& filename, const std::string& mode = "w", FileTypes file_type = FileTypes::Auto, bool include_index_col = true); }; #pragma GCC visibility pop// end of group } // namespace morpheus

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