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49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
#pragma once
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#include <Core/Block.h>
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#include <IO/WriteBuffer.h>
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#include <Processors/Formats/OutputFormatWithUTF8ValidationAdaptor.h>
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#include <Formats/FormatSettings.h>
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namespace DB
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{
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/** The stream for outputting data in JSON format, by object per line.
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*/
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class JSONEachRowRowOutputFormat : public RowOutputFormatWithUTF8ValidationAdaptor
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{
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public:
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JSONEachRowRowOutputFormat(
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WriteBuffer & out_,
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const Block & header_,
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const RowOutputFormatParams & params_,
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const FormatSettings & settings_);
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String getName() const override { return "JSONEachRowRowOutputFormat"; }
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/// Content-Type to set when sending HTTP response.
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String getContentType() const override
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{
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return settings.json.array_of_rows ? "application/json; charset=UTF-8" : "application/x-ndjson; charset=UTF-8" ;
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}
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protected:
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void writeField(const IColumn & column, const ISerialization & serialization, 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 writeRowBetweenDelimiter() override;
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void writePrefix() override;
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void writeSuffix() override;
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size_t field_number = 0;
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private:
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Names fields;
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FormatSettings settings;
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};
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}
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