Function printContents

tools/src/FileContents.cc:26–52

#include <string>

void printContents(const char* filename, const orc::RowReaderOptions& rowReaderOpts) {
  orc::ReaderOptions readerOpts;
  std::unique_ptr<orc::Reader> reader;
  std::unique_ptr<orc::RowReader> rowReader;
  reader = orc::createReader(orc::readFile(std::string(filename), readerOpts.getReaderMetrics()),
                             readerOpts);
  rowReader = reader->createRowReader(rowReaderOpts);

  std::unique_ptr<orc::ColumnVectorBatch> batch = rowReader->createRowBatch(1000);
  std::string line;
  orc::ColumnPrinter::Param param;
  param.printDecimalAsString = true;
  param.printDecimalTrimTrailingZeros = true;
  std::unique_ptr<orc::ColumnPrinter> printer =
      createColumnPrinter(line, &rowReader->getSelectedType(), param);

  while (rowReader->next(*batch)) {
    printer->reset(*batch);
    for (unsigned long i = 0; i < batch->numElements; ++i) {
      line.clear();
      printer->printRow(i);
      line += "\n";
      const char* str = line.c_str();
      fwrite(str, 1, strlen(str), stdout);
    }
  }
}

int main(int argc, char* argv[]) {
  uint64_t batchSize;  // not used