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#include <Processors/Formats/Impl/JSONCompactRowOutputFormat.h>
#include <Formats/FormatFactory.h>
#include <Formats/JSONUtils.h>
#include <IO/WriteHelpers.h>
namespace DB
{
JSONCompactRowOutputFormat::JSONCompactRowOutputFormat(
WriteBuffer & out_,
const Block & header,
const FormatSettings & settings_,
bool yield_strings_)
: JSONRowOutputFormat(out_, header, settings_, yield_strings_)
{
}
void JSONCompactRowOutputFormat::writeField(const IColumn & column, const ISerialization & serialization, size_t row_num)
{
JSONUtils::writeFieldFromColumn(column, serialization, row_num, yield_strings, settings, *ostr);
++field_number;
}
void JSONCompactRowOutputFormat::writeFieldDelimiter()
{
JSONUtils::writeFieldCompactDelimiter(*ostr);
}
void JSONCompactRowOutputFormat::writeRowStartDelimiter()
{
JSONUtils::writeCompactArrayStart(*ostr, 2);
}
void JSONCompactRowOutputFormat::writeRowEndDelimiter()
{
JSONUtils::writeCompactArrayEnd(*ostr);
field_number = 0;
++row_count;
}
void JSONCompactRowOutputFormat::writeBeforeTotals()
{
JSONUtils::writeFieldDelimiter(*ostr, 2);
JSONUtils::writeCompactArrayStart(*ostr, 1, "totals");
}
void JSONCompactRowOutputFormat::writeTotals(const Columns & columns, size_t row_num)
{
JSONUtils::writeCompactColumns(columns, serializations, row_num, yield_strings, settings, *ostr);
}
void JSONCompactRowOutputFormat::writeAfterTotals()
{
JSONUtils::writeCompactArrayEnd(*ostr);
}
void JSONCompactRowOutputFormat::writeExtremesElement(const char * title, const Columns & columns, size_t row_num)
{
JSONUtils::writeCompactArrayStart(*ostr, 2, title);
JSONUtils::writeCompactColumns(columns, serializations, row_num, yield_strings, settings, *ostr);
JSONUtils::writeCompactArrayEnd(*ostr);
}
void registerOutputFormatJSONCompact(FormatFactory & factory)
{
factory.registerOutputFormat("JSONCompact", [](
WriteBuffer & buf,
const Block & sample,
const FormatSettings & format_settings)
{
return std::make_shared<JSONCompactRowOutputFormat>(buf, sample, format_settings, false);
});
factory.markOutputFormatSupportsParallelFormatting("JSONCompact");
factory.registerOutputFormat("JSONCompactStrings", [](
WriteBuffer & buf,
const Block & sample,
const FormatSettings & format_settings)
{
return std::make_shared<JSONCompactRowOutputFormat>(buf, sample, format_settings, true);
});
factory.markOutputFormatSupportsParallelFormatting("JSONCompactStrings");
}
}
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