Examples with Memory com.yahoo.memory.Memory used on opensource projects

Example 46 with Memory

use of com.yahoo.memory.Memory in project sketches-core by DataSketches.

the class ReadOnlyMemoryTest method heapifySparseSketch.

@Test
public void heapifySparseSketch() {
    UpdateDoublesSketch s1 = DoublesSketch.builder().build();
    s1.update(1);
    s1.update(2);
    Memory mem = Memory.wrap(s1.toByteArray(false));
    DoublesSketch s2 = DoublesSketch.heapify(mem);
    Assert.assertEquals(s2.getMinValue(), 1.0);
    Assert.assertEquals(s2.getMaxValue(), 2.0);
}

Example 47 with Memory

use of com.yahoo.memory.Memory in project sketches-core by DataSketches.

the class ReadOnlyMemoryTest method wrapEmptyCompactSketch.

@Test
public void wrapEmptyCompactSketch() {
    final UpdateDoublesSketch s1 = DoublesSketch.builder().build();
    final Memory mem = Memory.wrap(s1.compact().toByteArray());
    // compact, so this is ok
    DoublesSketch s2 = DoublesSketch.wrap(mem);
    Assert.assertTrue(s2.isEmpty());
}

Example 48 with Memory

use of com.yahoo.memory.Memory in project sketches-core by DataSketches.

the class ReadOnlyMemoryTest method heapifyEmptyCompactSketch.

@Test
public void heapifyEmptyCompactSketch() {
    final CompactDoublesSketch s1 = DoublesSketch.builder().build().compact();
    final Memory mem = Memory.wrap(s1.toByteArray());
    DoublesSketch s2 = DoublesSketch.heapify(mem);
    Assert.assertTrue(s2.isEmpty());
}

Example 49 with Memory

use of com.yahoo.memory.Memory in project sketches-core by DataSketches.

the class ReadOnlyMemoryTest method wrapCompactSketch.

@Test
public void wrapCompactSketch() {
    UpdateDoublesSketch s1 = DoublesSketch.builder().build();
    s1.update(1);
    s1.update(2);
    //Memory mem = Memory.wrap(ByteBuffer.wrap(s1.compact().toByteArray()).asReadOnlyBuffer());
    final Memory mem = Memory.wrap(s1.compact().toByteArray());
    // compact, so this is ok
    final DoublesSketch s2 = DoublesSketch.wrap(mem);
    Assert.assertEquals(s2.getMinValue(), 1.0);
    Assert.assertEquals(s2.getMaxValue(), 2.0);
    Assert.assertEquals(s2.getN(), 2);
}

Example 50 with Memory

use of com.yahoo.memory.Memory in project sketches-core by DataSketches.

the class ReadOnlyMemoryTest method heapifyUnionFromCompact.

@Test
public void heapifyUnionFromCompact() {
    UpdateDoublesSketch s1 = DoublesSketch.builder().build();
    s1.update(1);
    s1.update(2);
    Memory mem = Memory.wrap(s1.toByteArray(true));
    DoublesUnion u = DoublesUnionBuilder.heapify(mem);
    u.update(3);
    DoublesSketch s2 = u.getResult();
    Assert.assertEquals(s2.getMinValue(), 1.0);
    Assert.assertEquals(s2.getMaxValue(), 3.0);
}