Exemplo n.º 1
0
  @Test
  public void testInverseIdentity() {
    double tol = 0.00001;
    Map<Key, Value> input = new TreeMap<>(TestUtil.COMPARE_KEY_TO_COLQ);
    input.put(new Key("1", "", "1"), new Value("1".getBytes()));
    //    input.put(new Key("1", "", "2"), new Value("1".getBytes()));
    //    input.put(new Key("2", "", "1"), new Value("1".getBytes()));
    input.put(new Key("2", "", "2"), new Value("1".getBytes()));

    RealMatrix matrix = MemMatrixUtil.buildMatrix(input.entrySet().iterator(), 2);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(1, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(0, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(0, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 1), tol);

    matrix = MemMatrixUtil.doInverse(matrix, -1);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(1, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(0, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(0, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 1), tol);

    SortedMap<Key, Value> back =
        MemMatrixUtil.matrixToMap(new TreeMap<Key, Value>(TestUtil.COMPARE_KEY_TO_COLQ), matrix);
    TestUtil.assertEqualDoubleMap(input, back);
    //    Assert.assertEquals(1, Double.parseDouble(new String(back.get(new Key("1", "",
    // "1")).get())), tol);
    //    Assert.assertEquals(1, Double.parseDouble(new String(back.get(new Key("2", "",
    // "2")).get())), tol);
  }
Exemplo n.º 2
0
  @Test
  public void testInverse2x2() {
    double tol = 0.001;
    Map<Key, Value> input = new TreeMap<>(TestUtil.COMPARE_KEY_TO_COLQ);
    input.put(new Key("1", "", "1"), new Value("4".getBytes()));
    input.put(new Key("1", "", "2"), new Value("3".getBytes()));
    input.put(new Key("2", "", "1"), new Value("1".getBytes()));
    input.put(new Key("2", "", "2"), new Value("1".getBytes()));
    Map<Key, Value> expect = new TreeMap<>(TestUtil.COMPARE_KEY_TO_COLQ);
    expect.put(new Key("1", "", "1"), new Value("1 ".getBytes()));
    expect.put(new Key("1", "", "2"), new Value("-3".getBytes()));
    expect.put(new Key("2", "", "1"), new Value("-1".getBytes()));
    expect.put(new Key("2", "", "2"), new Value("4 ".getBytes()));

    RealMatrix matrix = MemMatrixUtil.buildMatrix(input.entrySet().iterator(), 2);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(4, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(3, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(1, matrix.getEntry(1, 1), tol);

    matrix = MemMatrixUtil.doInverse(matrix, -1);
    Assert.assertEquals(2, matrix.getRowDimension());
    Assert.assertEquals(2, matrix.getColumnDimension());
    Assert.assertEquals(1, matrix.getEntry(0, 0), tol);
    Assert.assertEquals(-3, matrix.getEntry(0, 1), tol);
    Assert.assertEquals(-1, matrix.getEntry(1, 0), tol);
    Assert.assertEquals(4, matrix.getEntry(1, 1), tol);

    SortedMap<Key, Value> back =
        MemMatrixUtil.matrixToMap(new TreeMap<Key, Value>(TestUtil.COMPARE_KEY_TO_COLQ), matrix);
    TestUtil.assertEqualDoubleMap(expect, back);
  }
  @Override
  public void seek(Range range, Collection<ByteSequence> columnFamilies, boolean inclusive)
      throws IOException {
    if (!range.isInfiniteStartKey() || !range.isInfiniteStopKey())
      log.warn("Range is not infinite: " + range);
    source.seek(range, columnFamilies, inclusive);

    IteratorAdapter ia = new IteratorAdapter(source);
    SortedMap<Key, Value> map =
        MemMatrixUtil.matrixToMap(
            new TreeMap<Key, Value>(),
            MemMatrixUtil.doInverse(MemMatrixUtil.buildMatrix(ia, matrixSize), numIterations));

    //    DebugUtil.printMapFull(map.entrySet().iterator());
    mapIterator = new MapIterator(map);
    mapIterator.init(null, null, null);
    mapIterator.seek(range, columnFamilies, inclusive);
  }