Examples with Meta com.yahoo.bullet.result.Meta used on opensource projects

Example 1 with Meta

use of com.yahoo.bullet.result.Meta in project bullet-core by yahoo.

the class FrequentItemsSketchTest method testExactCounting.

@Test
public void testExactCounting() {
    FrequentItemsSketch sketch = new FrequentItemsSketch(ErrorType.NO_FALSE_NEGATIVES, 32, 15);
    IntStream.range(0, 10).forEach(i -> IntStream.range(0, 10).forEach(j -> sketch.update(String.valueOf(i))));
    sketch.update("foo");
    IntStream.range(10, 100).forEach(i -> sketch.update("bar"));
    sketch.update("baz");
    Clip result = sketch.getResult("meta", ALL_METADATA);
    Map<String, Object> metadata = (Map<String, Object>) result.getMeta().asMap().get("meta");
    Assert.assertEquals(metadata.size(), 5);
    Assert.assertFalse((Boolean) metadata.get("isEst"));
    Assert.assertEquals((String) metadata.get("family"), Family.FREQUENCY.getFamilyName());
    Assert.assertNull(metadata.get("size"));
    Assert.assertEquals(metadata.get("error"), 0L);
    Assert.assertEquals(metadata.get("n"), 192L);
    Assert.assertEquals(metadata.get("actives"), 13);
    List<BulletRecord> records = result.getRecords();
    Assert.assertEquals(records.size(), 13);
    for (BulletRecord actual : records) {
        String item = actual.get(FrequentItemsSketch.ITEM_FIELD).toString();
        Assert.assertEquals(actual.fieldCount(), 2);
        if ("bar".equals(item)) {
            Assert.assertEquals(actual.get(FrequentItemsSketch.COUNT_FIELD), 90L);
        } else if ("foo".equals(item) || "baz".equals(item)) {
            Assert.assertEquals(actual.get(FrequentItemsSketch.COUNT_FIELD), 1L);
        } else if (Integer.valueOf(item) < 10) {
            Assert.assertEquals(actual.get(FrequentItemsSketch.COUNT_FIELD), 10L);
        } else {
            Assert.fail("This should not be a case");
        }
    }
    Assert.assertEquals(sketch.getRecords(), result.getRecords());
    Assert.assertEquals(sketch.getMetadata("meta", ALL_METADATA).asMap(), result.getMeta().asMap());
}

Example 2 with Meta

use of com.yahoo.bullet.result.Meta in project bullet-core by yahoo.

the class FrequentItemsSketchTest method testResetting.

@Test
public void testResetting() {
    FrequentItemsSketch sketch = new FrequentItemsSketch(ErrorType.NO_FALSE_NEGATIVES, 32, 32);
    IntStream.range(0, 10).forEach(i -> IntStream.range(0, 10).forEach(j -> sketch.update(String.valueOf(i))));
    IntStream.range(10, 100).forEach(i -> sketch.update("bar"));
    FrequentItemsSketch another = new FrequentItemsSketch(ErrorType.NO_FALSE_NEGATIVES, 32, 32);
    another.update("foo");
    another.update("bar");
    another.update("baz");
    sketch.union(another.serialize());
    Clip result = sketch.getResult("meta", ALL_METADATA);
    Map<String, Object> metadata = (Map<String, Object>) result.getMeta().asMap().get("meta");
    Assert.assertFalse((Boolean) metadata.get("isEst"));
    Assert.assertEquals(result.getRecords().size(), 13);
    Assert.assertEquals(sketch.getRecords(), result.getRecords());
    Assert.assertEquals(sketch.getMetadata("meta", ALL_METADATA).asMap(), result.getMeta().asMap());
    sketch.reset();
    result = sketch.getResult("meta", ALL_METADATA);
    metadata = (Map<String, Object>) result.getMeta().asMap().get("meta");
    Assert.assertEquals((String) metadata.get("family"), Family.FREQUENCY.getFamilyName());
    Assert.assertNull(metadata.get("size"));
    Assert.assertEquals(metadata.get("error"), 0L);
    Assert.assertEquals(metadata.get("n"), 0L);
    Assert.assertEquals(metadata.get("actives"), 0);
    Assert.assertFalse((Boolean) metadata.get("isEst"));
    List<BulletRecord> records = result.getRecords();
    Assert.assertEquals(records.size(), 0);
    Assert.assertEquals(sketch.getRecords(), result.getRecords());
    Assert.assertEquals(sketch.getMetadata("meta", ALL_METADATA).asMap(), result.getMeta().asMap());
}

Example 3 with Meta

use of com.yahoo.bullet.result.Meta in project bullet-core by yahoo.

the class FrequentItemsSketchTest method testSizeLimiting.

@Test
public void testSizeLimiting() {
    FrequentItemsSketch sketch = new FrequentItemsSketch(ErrorType.NO_FALSE_NEGATIVES, 32, 10);
    // For i from 1 to 13, update the sketch i times
    IntStream.range(1, 13).forEach(i -> IntStream.range(0, i).forEach(j -> sketch.update(String.valueOf(i))));
    Clip result = sketch.getResult("meta", ALL_METADATA);
    Map<String, Object> metadata = (Map<String, Object>) result.getMeta().asMap().get("meta");
    Assert.assertEquals(metadata.size(), 5);
    Assert.assertFalse((Boolean) metadata.get("isEst"));
    List<BulletRecord> records = result.getRecords();
    Assert.assertEquals(records.size(), 10);
    for (BulletRecord actual : records) {
        Assert.assertEquals(actual.fieldCount(), 2);
        Integer item = Integer.valueOf(actual.get(FrequentItemsSketch.ITEM_FIELD).toString());
        // 1, 2 had the lowest and since our size is 10, we should have not seen them
        Assert.assertTrue(item > 2 && item < 13);
        Assert.assertEquals(actual.get(FrequentItemsSketch.COUNT_FIELD), Long.valueOf(item));
    }
    Assert.assertEquals(sketch.getRecords(), result.getRecords());
    Assert.assertEquals(sketch.getMetadata("meta", ALL_METADATA).asMap(), result.getMeta().asMap());
}

Example 4 with Meta

use of com.yahoo.bullet.result.Meta in project bullet-core by yahoo.

the class Scheme method getMetadata.

/**
 * Return any {@link Meta} for this windowing scheme and the {@link Strategy}.
 *
 * @return A non-null Meta object.
 */
@Override
public Meta getMetadata() {
    Meta meta = new Meta();
    boolean shouldMeta = config.getAs(BulletConfig.RESULT_METADATA_ENABLE, Boolean.class);
    if (shouldMeta) {
        String key = getMetaKey();
        if (key != null) {
            meta.add(key, getMetadata(metadataKeys));
        }
        meta.merge(aggregation.getMetadata());
    }
    return meta;
}

Example 5 with Meta

use of com.yahoo.bullet.result.Meta in project bullet-core by yahoo.

the class Querier method getResultMetadata.

private Meta getResultMetadata() {
    String metaKey = getMetaKey();
    if (metaKey == null) {
        return null;
    }
    Map<String, Object> meta = new HashMap<>();
    addIfNonNull(meta, metaKeys, Concept.QUERY_ID, runningQuery::getId);
    addIfNonNull(meta, metaKeys, Concept.QUERY_BODY, runningQuery::toString);
    addIfNonNull(meta, metaKeys, Concept.QUERY_RECEIVE_TIME, runningQuery::getStartTime);
    return new Meta().add(metaKey, meta);
}