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#include <IO/WriteBuffer.h>
#include <IO/WriteHelpers.h>
#include <Columns/IColumn.h>
#include <DataTypes/IDataType.h>
#include <Processors/Formats/Impl/BinaryRowOutputFormat.h>
#include <Formats/FormatFactory.h>
#include <Formats/registerWithNamesAndTypes.h>
namespace DB
{
BinaryRowOutputFormat::BinaryRowOutputFormat(WriteBuffer & out_, const Block & header, bool with_names_, bool with_types_, const FormatSettings & format_settings_)
: IRowOutputFormat(header, out_), with_names(with_names_), with_types(with_types_), format_settings(format_settings_)
{
}
void BinaryRowOutputFormat::writePrefix()
{
const auto & header = getPort(PortKind::Main).getHeader();
size_t columns = header.columns();
if (with_names || with_types)
{
writeVarUInt(columns, out);
}
if (with_names)
{
for (size_t i = 0; i < columns; ++i)
{
writeStringBinary(header.safeGetByPosition(i).name, out);
}
}
if (with_types)
{
for (size_t i = 0; i < columns; ++i)
{
writeStringBinary(header.safeGetByPosition(i).type->getName(), out);
}
}
}
void BinaryRowOutputFormat::writeField(const IColumn & column, const ISerialization & serialization, size_t row_num)
{
serialization.serializeBinary(column, row_num, out, format_settings);
}
void registerOutputFormatRowBinary(FormatFactory & factory)
{
auto register_func = [&](const String & format_name, bool with_names, bool with_types)
{
factory.registerOutputFormat(format_name, [with_names, with_types](
WriteBuffer & buf,
const Block & sample,
const FormatSettings & format_settings)
{
return std::make_shared<BinaryRowOutputFormat>(buf, sample, with_names, with_types, format_settings);
});
factory.markOutputFormatSupportsParallelFormatting(format_name);
};
registerWithNamesAndTypes("RowBinary", register_func);
}
}
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