Java ScanResponse.getCellsPerResult方法代码示例

import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.ScanResponse; //导入方法依赖的package包/类
/**
 * Create Results from the cells using the cells meta data. 
 * @param cellScanner
 * @param response
 * @return results
 */
public static Result[] getResults(CellScanner cellScanner, ScanResponse response)
    throws IOException {
  if (response == null) return null;
  // If cellscanner, then the number of Results to return is the count of elements in the
  // cellsPerResult list.  Otherwise, it is how many results are embedded inside the response.
  int noOfResults = cellScanner != null?
    response.getCellsPerResultCount(): response.getResultsCount();
  Result[] results = new Result[noOfResults];
  for (int i = 0; i < noOfResults; i++) {
    if (cellScanner != null) {
      // Cells are out in cellblocks.  Group them up again as Results.  How many to read at a
      // time will be found in getCellsLength -- length here is how many Cells in the i'th Result
      int noOfCells = response.getCellsPerResult(i);
      boolean isPartial =
          response.getPartialFlagPerResultCount() > i ?
              response.getPartialFlagPerResult(i) : false;
      List<Cell> cells = new ArrayList<Cell>(noOfCells);
      for (int j = 0; j < noOfCells; j++) {
        try {
          if (cellScanner.advance() == false) {
            // We are not able to retrieve the exact number of cells which ResultCellMeta says us.
            // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
            // same scanner will result in OutOfOrderScannerNextException
            String msg = "Results sent from server=" + noOfResults + ". But only got " + i
              + " results completely at client. Resetting the scanner to scan again.";
            LOG.error(msg);
            throw new DoNotRetryIOException(msg);
          }
        } catch (IOException ioe) {
          // We are getting IOE while retrieving the cells for Results.
          // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
          // same scanner will result in OutOfOrderScannerNextException
          LOG.error("Exception while reading cells from result."
            + "Resetting the scanner to scan again.", ioe);
          throw new DoNotRetryIOException("Resetting the scanner.", ioe);
        }
        cells.add(cellScanner.current());
      }
      results[i] = Result.create(cells, null, response.getStale(), isPartial);
    } else {
      // Result is pure pb.
      results[i] = ProtobufUtil.toResult(response.getResults(i));
    }
  }
  return results;
}
 

import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.ScanResponse; //导入方法依赖的package包/类
/**
 * Create Results from the cells using the cells meta data. 
 * @param cellScanner
 * @param response
 * @return results
 */
public static Result[] getResults(CellScanner cellScanner, ScanResponse response)
    throws IOException {
  if (response == null) return null;
  // If cellscanner, then the number of Results to return is the count of elements in the
  // cellsPerResult list.  Otherwise, it is how many results are embedded inside the response.
  int noOfResults = cellScanner != null?
    response.getCellsPerResultCount(): response.getResultsCount();
  Result[] results = new Result[noOfResults];
  for (int i = 0; i < noOfResults; i++) {
    if (cellScanner != null) {
      // Cells are out in cellblocks.  Group them up again as Results.  How many to read at a
      // time will be found in getCellsLength -- length here is how many Cells in the i'th Result
      int noOfCells = response.getCellsPerResult(i);
      List<Cell> cells = new ArrayList<Cell>(noOfCells);
      for (int j = 0; j < noOfCells; j++) {
        try {
          if (cellScanner.advance() == false) {
            // We are not able to retrieve the exact number of cells which ResultCellMeta says us.
            // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
            // same scanner will result in OutOfOrderScannerNextException
            String msg = "Results sent from server=" + noOfResults + ". But only got " + i
              + " results completely at client. Resetting the scanner to scan again.";
            LOG.error(msg);
            throw new DoNotRetryIOException(msg);
          }
        } catch (IOException ioe) {
          // We are getting IOE while retrieving the cells for Results.
          // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
          // same scanner will result in OutOfOrderScannerNextException
          LOG.error("Exception while reading cells from result."
            + "Resetting the scanner to scan again.", ioe);
          throw new DoNotRetryIOException("Resetting the scanner.", ioe);
        }
        cells.add(cellScanner.current());
      }
      results[i] = Result.create(cells, null, response.getStale());
    } else {
      // Result is pure pb.
      results[i] = ProtobufUtil.toResult(response.getResults(i));
    }
  }
  return results;
}
 

import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.ScanResponse; //导入方法依赖的package包/类
/**
 * Create Results from the cells using the cells meta data. 
 * @param cellScanner
 * @param response
 * @return results
 */
public static Result[] getResults(CellScanner cellScanner, ScanResponse response)
    throws IOException {
  if (response == null) return null;
  // If cellscanner, then the number of Results to return is the count of elements in the
  // cellsPerResult list.  Otherwise, it is how many results are embedded inside the response.
  int noOfResults = cellScanner != null?
    response.getCellsPerResultCount(): response.getResultsCount();
  Result[] results = new Result[noOfResults];
  for (int i = 0; i < noOfResults; i++) {
    if (cellScanner != null) {
      // Cells are out in cellblocks.  Group them up again as Results.  How many to read at a
      // time will be found in getCellsLength -- length here is how many Cells in the i'th Result
      int noOfCells = response.getCellsPerResult(i);
      List<Cell> cells = new ArrayList<Cell>(noOfCells);
      for (int j = 0; j < noOfCells; j++) {
        try {
          if (cellScanner.advance() == false) {
            // We are not able to retrieve the exact number of cells which ResultCellMeta says us.
            // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
            // same scanner will result in OutOfOrderScannerNextException
            String msg = "Results sent from server=" + noOfResults + ". But only got " + i
              + " results completely at client. Resetting the scanner to scan again.";
            LOG.error(msg);
            throw new DoNotRetryIOException(msg);
          }
        } catch (IOException ioe) {
          // We are getting IOE while retrieving the cells for Results.
          // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
          // same scanner will result in OutOfOrderScannerNextException
          LOG.error("Exception while reading cells from result."
            + "Resetting the scanner to scan again.", ioe);
          throw new DoNotRetryIOException("Resetting the scanner.", ioe);
        }
        cells.add(cellScanner.current());
      }
      results[i] = Result.create(cells);
    } else {
      // Result is pure pb.
      results[i] = ProtobufUtil.toResult(response.getResults(i));
    }
  }
  return results;
}