Java Code Examples for org.apache.hadoop.hbase.client.Result#createCompleteResult()

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Example 1
Source File: TestPartialResultsFromClientSide.java    From hbase with Apache License 2.0 6 votes vote down vote up 
/**
 * When reconstructing the complete result from its partials we ensure that the row of each
 * partial result is the same. If one of the rows differs, an exception is thrown.
 */
@Test
public void testExceptionThrownOnMismatchedPartialResults() throws IOException {
  assertTrue(NUM_ROWS >= 2);

  ArrayList<Result> partials = new ArrayList<>();
  Scan scan = new Scan();
  scan.setMaxResultSize(Long.MAX_VALUE);
  ResultScanner scanner = TABLE.getScanner(scan);
  Result r1 = scanner.next();
  partials.add(r1);
  Result r2 = scanner.next();
  partials.add(r2);

  assertFalse(Bytes.equals(r1.getRow(), r2.getRow()));

  try {
    Result.createCompleteResult(partials);
    fail("r1 and r2 are from different rows. It should not be possible to combine them into"
        + " a single result");
  } catch (IOException e) {
  }

  scanner.close();
}
Example 2
Source File: TestPartialResultsFromClientSide.java    From hbase with Apache License 2.0 5 votes vote down vote up 
public void testPartialResultsReassembly(Scan scanBase) throws Exception {
  Scan partialScan = new Scan(scanBase);
  partialScan.setMaxResultSize(1);
  partialScan.setAllowPartialResults(true);
  ResultScanner partialScanner = TABLE.getScanner(partialScan);

  Scan oneShotScan = new Scan(scanBase);
  oneShotScan.setMaxResultSize(Long.MAX_VALUE);
  ResultScanner oneShotScanner = TABLE.getScanner(oneShotScan);

  ArrayList<Result> partials = new ArrayList<>();
  for (int i = 0; i < NUM_ROWS; i++) {
    Result partialResult = null;
    Result completeResult = null;
    Result oneShotResult = null;
    partials.clear();

    do {
      partialResult = partialScanner.next();
      partials.add(partialResult);
    } while (partialResult != null && partialResult.mayHaveMoreCellsInRow());

    completeResult = Result.createCompleteResult(partials);
    oneShotResult = oneShotScanner.next();

    compareResults(completeResult, oneShotResult, null);
  }

  assertTrue(oneShotScanner.next() == null);
  assertTrue(partialScanner.next() == null);

  oneShotScanner.close();
  partialScanner.close();
}