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37 lines
778 B
C++
37 lines
778 B
C++
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#pragma once
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#include <DB/Core/Block.h>
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#include <DB/IO/WriteBuffer.h>
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#include <DB/DataStreams/IRowOutputStream.h>
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namespace DB
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{
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/** Поток для вывода данных в формате JSON, по объекту на каждую строчку.
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* Не валидирует UTF-8.
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*/
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class JSONEachRowRowOutputStream : public IRowOutputStream
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{
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public:
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JSONEachRowRowOutputStream(WriteBuffer & ostr_, const Block & sample);
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void writeField(const IColumn & column, const IDataType & type, size_t row_num) override;
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void writeFieldDelimiter() override;
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void writeRowStartDelimiter() override;
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void writeRowEndDelimiter() override;
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void flush() override
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{
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ostr.next();
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}
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private:
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WriteBuffer & ostr;
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size_t field_number = 0;
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Names fields;
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};
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}
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