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

Example 6 with BitmapFactory

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

the class ImmutableRTreeTest method testSearchWithSplit3.

@Test
public void testSearchWithSplit3() {
    BitmapFactory bf = new ConciseBitmapFactory();
    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.nextFloat() * 10 + 10.0), (float) (rand.nextFloat() * 10 + 10.0) }, i);
    }
    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.assertTrue(finalSet.size() >= 3);
    Set<Integer> expected = Sets.newHashSet(0, 1, 2);
    IntIterator iter = finalSet.iterator();
    while (iter.hasNext()) {
        Assert.assertTrue(expected.contains(iter.next()));
    }
}

Example 7 with BitmapFactory

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

the class ImmutableRTreeTest method testToAndFromByteBuffer.

@Test
public void testToAndFromByteBuffer() {
    BitmapFactory bf = new ConciseBitmapFactory();
    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 8 with BitmapFactory

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

the class ImmutableRTreeTest method testSearchWithSplit3Roaring.

@Test
public void testSearchWithSplit3Roaring() {
    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.nextFloat() * 10 + 10.0), (float) (rand.nextFloat() * 10 + 10.0) }, i);
    }
    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.assertTrue(finalSet.size() >= 3);
    Set<Integer> expected = Sets.newHashSet(0, 1, 2);
    IntIterator iter = finalSet.iterator();
    while (iter.hasNext()) {
        Assert.assertTrue(expected.contains(iter.next()));
    }
}

Example 9 with BitmapFactory

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

the class RTreeTest method setUp.

@Before
public void setUp() throws Exception {
    BitmapFactory bf = new ConciseBitmapFactory();
    tree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, bf), bf);
    BitmapFactory rbf = new RoaringBitmapFactory();
    roaringtree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, rbf), rbf);
}

Example 10 with BitmapFactory

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

the class LinearGutmanSplitStrategyTest method testNumChildrenSizeRoaring.

@Test
public void testNumChildrenSizeRoaring() {
    BitmapFactory bf = new RoaringBitmapFactory();
    RTree tree = new RTree(2, new LinearGutmanSplitStrategy(0, 50, bf), bf);
    Random rand = new Random();
    for (int i = 0; i < 100; i++) {
        tree.insert(new float[] { rand.nextFloat(), rand.nextFloat() }, i);
    }
    Assert.assertTrue(getNumPoints(tree.getRoot()) >= tree.getSize());
}