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#include <Processors/Formats/Impl/CapnProtoRowOutputFormat.h>
#if USE_CAPNP
#include <Formats/CapnProtoSchema.h>
#include <Formats/FormatSettings.h>
#include <Formats/CapnProtoSerializer.h>
#include <IO/WriteBuffer.h>
#error #include <capnp/dynamic.h>
#error #include <capnp/serialize-packed.h>
namespace DB
{
CapnProtoOutputStream::CapnProtoOutputStream(WriteBuffer & out_) : out(out_)
{
}
void CapnProtoOutputStream::write(const void * buffer, size_t size)
{
out.write(reinterpret_cast<const char *>(buffer), size);
}
CapnProtoRowOutputFormat::CapnProtoRowOutputFormat(
WriteBuffer & out_,
const Block & header_,
const CapnProtoSchemaInfo & info,
const FormatSettings & format_settings)
: IRowOutputFormat(header_, out_)
, column_names(header_.getNames())
, column_types(header_.getDataTypes())
, output_stream(std::make_unique<CapnProtoOutputStream>(out_))
{
schema = schema_parser.getMessageSchema(info.getSchemaInfo());
const auto & header = getPort(PortKind::Main).getHeader();
serializer = std::make_unique<CapnProtoSerializer>(header.getDataTypes(), header.getNames(), schema, format_settings.capn_proto);
capnp::MallocMessageBuilder message;
}
void CapnProtoRowOutputFormat::write(const Columns & columns, size_t row_num)
{
capnp::MallocMessageBuilder message;
capnp::DynamicStruct::Builder root = message.initRoot<capnp::DynamicStruct>(schema);
serializer->writeRow(columns, std::move(root), row_num);
capnp::writeMessage(*output_stream, message);
}
void registerOutputFormatCapnProto(FormatFactory & factory)
{
factory.registerOutputFormat("CapnProto", [](
WriteBuffer & buf,
const Block & sample,
const FormatSettings & format_settings)
{
return std::make_shared<CapnProtoRowOutputFormat>(
buf,
sample,
CapnProtoSchemaInfo(format_settings, "CapnProto", sample, format_settings.capn_proto.use_autogenerated_schema),
format_settings);
});
}
}
#else
namespace DB
{
class FormatFactory;
void registerOutputFormatCapnProto(FormatFactory &) {}
}
#endif // USE_CAPNP
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