ClickHouse/dbms/src/DataStreams/InternalTextLogsRowOutputStream.h
2018-09-05 12:47:57 +03:00

33 lines
618 B
C++

#pragma once
#include <DataStreams/IBlockOutputStream.h>
#include <IO/WriteBuffer.h>
namespace DB
{
/// Prints internal server logs
/// Input blocks have to have the same structure as SystemLogsQueue::getSampleBlock()
/// NOTE: IRowOutputStream does not suite well for this case
class InternalTextLogsRowOutputStream : public IBlockOutputStream
{
public:
InternalTextLogsRowOutputStream(WriteBuffer & buf_out) : wb(buf_out) {}
Block getHeader() const override;
void write(const Block & block) override;
void flush() override
{
wb.next();
}
private:
WriteBuffer & wb;
};
}