Examples with HyperLogLogPlus com.clearspring.analytics.stream.cardinality.HyperLogLogPlus used on opensource projects

Example 16 with HyperLogLogPlus

use of com.clearspring.analytics.stream.cardinality.HyperLogLogPlus in project Gaffer by gchq.

the class HyperLogLogPlusJsonSerialisationTest method runTestWithSketch.

private void runTestWithSketch(final HyperLogLogPlus sketch) throws IOException {
    // When - serialise
    final String json = new String(JSONSerialiser.serialise(sketch));
    // Then - serialise
    JsonAssert.assertEquals("" + "{\"hyperLogLogPlus\":" + "{\"hyperLogLogPlusSketchBytes\":" + new String(JSONSerialiser.serialise(sketch.getBytes())) + "," + "\"cardinality\":" + sketch.cardinality() + "}}", json);
    // When - deserialise
    final HyperLogLogPlus deserialisedSketch = JSONSerialiser.deserialise(json, HyperLogLogPlus.class);
    // Then - deserialise
    assertNotNull(deserialisedSketch);
    assertEquals(sketch.cardinality(), deserialisedSketch.cardinality());
}

Example 17 with HyperLogLogPlus

use of com.clearspring.analytics.stream.cardinality.HyperLogLogPlus in project Gaffer by gchq.

the class HyperLogLogPlusJsonSerialisationTest method testValidHyperLogLogPlusSketchSerialisedCorrectly.

@Test
public void testValidHyperLogLogPlusSketchSerialisedCorrectly() throws IOException {
    // Given
    final String testString = "TestString";
    final HyperLogLogPlus sketch = new HyperLogLogPlus(5, 5);
    sketch.offer(testString);
    // When / Then
    runTestWithSketch(sketch);
}

Example 18 with HyperLogLogPlus

use of com.clearspring.analytics.stream.cardinality.HyperLogLogPlus in project Gaffer by gchq.

the class HyperLogLogPlusJsonSerialisationTest method testNullHyperLogLogSketchDeserialisedAsEmptySketch.

@Test
public void testNullHyperLogLogSketchDeserialisedAsEmptySketch() throws IOException {
    // Given
    final String sketchAsString = "{}";
    // When
    HyperLogLogPlus hllp = JSONSerialiser.deserialise(sketchAsString, HyperLogLogPlus.class);
    // Then
    assertEquals(0, hllp.cardinality());
}

Example 19 with HyperLogLogPlus

use of com.clearspring.analytics.stream.cardinality.HyperLogLogPlus in project Gaffer by gchq.

the class HyperLogLogPlusJsonSerialisationTest method testEmptyHyperLogLogPlusSketchIsSerialised.

@Test
public void testEmptyHyperLogLogPlusSketchIsSerialised() throws IOException {
    // Given
    final HyperLogLogPlus sketch = new HyperLogLogPlus(5, 5);
    // When / Then
    runTestWithSketch(sketch);
}

Example 20 with HyperLogLogPlus

use of com.clearspring.analytics.stream.cardinality.HyperLogLogPlus in project Gaffer by gchq.

the class HyperLogLogPlusJsonSerialisationTest method shouldDeserialiseNewHllpWithSAndSpValues.

@Test
public void shouldDeserialiseNewHllpWithSAndSpValues() throws IOException {
    // Given
    final String sketchAsString = "{\"p\": 5, \"sp\": 10}";
    // When
    HyperLogLogPlus hllp = JSONSerialiser.deserialise(sketchAsString, HyperLogLogPlus.class);
    // Then
    assertArrayEquals(new HyperLogLogPlus(5, 10).getBytes(), hllp.getBytes());
}