Examples with RoaringBitmapFactory io.druid.collections.bitmap.RoaringBitmapFactory used on opensource projects

Example 11 with RoaringBitmapFactory

use of io.druid.collections.bitmap.RoaringBitmapFactory in project druid by druid-io.

the class ImmutableRTreeTest method testSearchWithSplit2Roaring.

@Test
public void testSearchWithSplit2Roaring() {
    BitmapFactory bf = new RoaringBitmapFactory();
    RTree tree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, bf), bf);
    tree.insert(new float[] { 0.0f, 0.0f }, 0);
    tree.insert(new float[] { 1.0f, 3.0f }, 1);
    tree.insert(new float[] { 4.0f, 2.0f }, 2);
    tree.insert(new float[] { 7.0f, 3.0f }, 3);
    tree.insert(new float[] { 8.0f, 6.0f }, 4);
    Random rand = new Random();
    for (int i = 5; i < 5000; i++) {
        tree.insert(new float[] { (float) (rand.nextDouble() * 10 + 10.0), (float) (rand.nextDouble() * 10 + 10.0) }, i);
    }
    ImmutableRTree searchTree = ImmutableRTree.newImmutableFromMutable(tree);
    Iterable<ImmutableBitmap> points = searchTree.search(new RectangularBound(new float[] { 0, 0 }, new float[] { 9, 9 }));
    ImmutableBitmap finalSet = bf.union(points);
    Assert.assertTrue(finalSet.size() >= 5);
    Set<Integer> expected = Sets.newHashSet(0, 1, 2, 3, 4);
    IntIterator iter = finalSet.iterator();
    while (iter.hasNext()) {
        Assert.assertTrue(expected.contains(iter.next()));
    }
}

Example 12 with RoaringBitmapFactory

use of io.druid.collections.bitmap.RoaringBitmapFactory in project druid by druid-io.

the class ImmutableRTreeTest method testSearchNoSplitRoaring.

@Test
public void testSearchNoSplitRoaring() {
    BitmapFactory bf = new RoaringBitmapFactory();
    RTree tree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, bf), bf);
    tree.insert(new float[] { 0, 0 }, 1);
    tree.insert(new float[] { 10, 10 }, 10);
    tree.insert(new float[] { 1, 3 }, 2);
    tree.insert(new float[] { 27, 34 }, 20);
    tree.insert(new float[] { 106, 19 }, 30);
    tree.insert(new float[] { 4, 2 }, 3);
    tree.insert(new float[] { 5, 0 }, 4);
    tree.insert(new float[] { 4, 72 }, 40);
    tree.insert(new float[] { -4, -3 }, 5);
    tree.insert(new float[] { 119, -78 }, 50);
    Assert.assertEquals(tree.getRoot().getChildren().size(), 10);
    ImmutableRTree searchTree = ImmutableRTree.newImmutableFromMutable(tree);
    Iterable<ImmutableBitmap> points = searchTree.search(new RadiusBound(new float[] { 0, 0 }, 5));
    ImmutableBitmap finalSet = bf.union(points);
    Assert.assertTrue(finalSet.size() >= 5);
    Set<Integer> expected = Sets.newHashSet(1, 2, 3, 4, 5);
    IntIterator iter = finalSet.iterator();
    while (iter.hasNext()) {
        Assert.assertTrue(expected.contains(iter.next()));
    }
}

Example 13 with RoaringBitmapFactory

use of io.druid.collections.bitmap.RoaringBitmapFactory in project druid by druid-io.

the class ImmutableRTreeTest method testSearchWithSplitLimitedBoundRoaring.

@Test
public void testSearchWithSplitLimitedBoundRoaring() {
    BitmapFactory bf = new RoaringBitmapFactory();
    RTree tree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, bf), bf);
    tree.insert(new float[] { 0, 0 }, 1);
    tree.insert(new float[] { 1, 3 }, 2);
    tree.insert(new float[] { 4, 2 }, 3);
    tree.insert(new float[] { 5, 0 }, 4);
    tree.insert(new float[] { -4, -3 }, 5);
    Random rand = new Random();
    for (int i = 0; i < 4995; i++) {
        tree.insert(new float[] { (float) (rand.nextDouble() * 10 + 10.0), (float) (rand.nextDouble() * 10 + 10.0) }, i);
    }
    ImmutableRTree searchTree = ImmutableRTree.newImmutableFromMutable(tree);
    Iterable<ImmutableBitmap> points = searchTree.search(new RadiusBound(new float[] { 0, 0 }, 5, 2));
    ImmutableBitmap finalSet = bf.union(points);
    Assert.assertTrue(finalSet.size() >= 5);
    Set<Integer> expected = Sets.newHashSet(1, 2, 3, 4, 5);
    IntIterator iter = finalSet.iterator();
    while (iter.hasNext()) {
        Assert.assertTrue(expected.contains(iter.next()));
    }
}

Example 14 with RoaringBitmapFactory

use of io.druid.collections.bitmap.RoaringBitmapFactory in project druid by druid-io.

the class ImmutableRTreeTest method testToAndFromByteBufferRoaring.

@Test
public void testToAndFromByteBufferRoaring() {
    BitmapFactory bf = new RoaringBitmapFactory();
    RTree tree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, bf), bf);
    tree.insert(new float[] { 0, 0 }, 1);
    tree.insert(new float[] { 1, 1 }, 2);
    tree.insert(new float[] { 2, 2 }, 3);
    tree.insert(new float[] { 3, 3 }, 4);
    tree.insert(new float[] { 4, 4 }, 5);
    ImmutableRTree firstTree = ImmutableRTree.newImmutableFromMutable(tree);
    ByteBuffer buffer = ByteBuffer.wrap(firstTree.toBytes());
    ImmutableRTree secondTree = new ImmutableRTree(buffer, bf);
    Iterable<ImmutableBitmap> points = secondTree.search(new RadiusBound(new float[] { 0, 0 }, 10));
    ImmutableBitmap finalSet = bf.union(points);
    Assert.assertTrue(finalSet.size() >= 5);
    Set<Integer> expected = Sets.newHashSet(1, 2, 3, 4, 5);
    IntIterator iter = finalSet.iterator();
    while (iter.hasNext()) {
        Assert.assertTrue(expected.contains(iter.next()));
    }
}

Example 15 with RoaringBitmapFactory

use of io.druid.collections.bitmap.RoaringBitmapFactory in project druid by druid-io.

the class ImmutableRTreeTest method testEmptyRoaringBitmap.

@Test
public void testEmptyRoaringBitmap() {
    BitmapFactory bf = new RoaringBitmapFactory();
    RTree tree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, bf), bf);
    tree.insert(new float[] { 0.0f, 0.0f }, bf.makeEmptyMutableBitmap());
    ImmutableRTree searchTree = ImmutableRTree.newImmutableFromMutable(tree);
    Iterable<ImmutableBitmap> points = searchTree.search(new RadiusBound(new float[] { 0.0f, 0.0f }, 5));
    ImmutableBitmap finalSet = bf.union(points);
    Assert.assertEquals(finalSet.size(), 0);
    Assert.assertTrue(finalSet.isEmpty());
}