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#include <Processors/Formats/IInputFormat.h>
#include <IO/ReadBuffer.h>
namespace DB
{
IInputFormat::IInputFormat(Block header, ReadBuffer * in_)
: ISource(std::move(header)), in(in_)
{
column_mapping = std::make_shared<ColumnMapping>();
}
void IInputFormat::resetParser()
{
chassert(in);
in->ignoreAll();
// those are protected attributes from ISource (I didn't want to propagate resetParser up there)
finished = false;
got_exception = false;
getPort().getInputPort().reopen();
}
void IInputFormat::setReadBuffer(ReadBuffer & in_)
{
chassert(in); // not supported by random-access formats
in = &in_;
}
Chunk IInputFormat::getChunkForCount(size_t rows)
{
const auto & header = getPort().getHeader();
return cloneConstWithDefault(Chunk{header.getColumns(), 0}, rows);
}
}
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