private CellScanner doCreateCellArray(final int itemsPerList) {
Cell[] cells = new Cell[itemsPerList];
for (int i = 0; i < itemsPerList; i++) {
cells[i] = new TestCell(i);
}
return CellUtil.createCellScanner(cells);
}
/**
* Was overflowing if 100k or so lists of cellscanners to return.
*
* @throws IOException
*/
@Test
public void testCreateCellScannerOverflow() throws IOException {
consume(doCreateCellScanner(1, 1), 1 * 1);
consume(doCreateCellScanner(3, 0), 3 * 0);
consume(doCreateCellScanner(3, 3), 3 * 3);
consume(doCreateCellScanner(0, 1), 0 * 1);
// Do big number. See HBASE-11813 for why.
final int hundredK = 100000;
consume(doCreateCellScanner(hundredK, 0), hundredK * 0);
consume(doCreateCellArray(1), 1);
consume(doCreateCellArray(0), 0);
consume(doCreateCellArray(3), 3);
List<CellScannable> cells = new ArrayList<CellScannable>(hundredK);
for (int i = 0; i < hundredK; i++) {
cells.add(new TestCellScannable(1));
}
consume(CellUtil.createCellScanner(cells), hundredK * 1);
NavigableMap<byte[], List<Cell>> m = new TreeMap<byte[], List<Cell>>(Bytes.BYTES_COMPARATOR);
List<Cell> cellArray = new ArrayList<Cell>(hundredK);
for (int i = 0; i < hundredK; i++) cellArray.add(new TestCell(i));
m.put(new byte[] {'f'}, cellArray);
consume(CellUtil.createCellScanner(m), hundredK * 1);
}
private CellScanner doCreateCellScanner(final int listsCount, final int itemsPerList)
throws IOException {
List<CellScannable> cells = new ArrayList<CellScannable>(listsCount);
for (int i = 0; i < listsCount; i++) {
CellScannable cs =
new CellScannable() {
@Override
public CellScanner cellScanner() {
return new TestCellScanner(itemsPerList);
}
};
cells.add(cs);
}
return CellUtil.createCellScanner(cells);
}