Examples with BucketExtractionFn org.apache.druid.query.extraction.BucketExtractionFn used on opensource projects

Example 1 with BucketExtractionFn

use of org.apache.druid.query.extraction.BucketExtractionFn in project druid by druid-io.

the class VirtualColumnsTest method testMakeSelectors.

@Test
public void testMakeSelectors() {
    final VirtualColumns virtualColumns = makeVirtualColumns();
    final BaseObjectColumnValueSelector objectSelector = virtualColumns.makeColumnValueSelector("expr", null);
    final DimensionSelector dimensionSelector = virtualColumns.makeDimensionSelector(new DefaultDimensionSpec("expr", "x"), null);
    final DimensionSelector extractionDimensionSelector = virtualColumns.makeDimensionSelector(new ExtractionDimensionSpec("expr", "x", new BucketExtractionFn(1.0, 0.5)), null);
    final BaseFloatColumnValueSelector floatSelector = virtualColumns.makeColumnValueSelector("expr", null);
    final BaseLongColumnValueSelector longSelector = virtualColumns.makeColumnValueSelector("expr", null);
    Assert.assertEquals(1L, objectSelector.getObject());
    Assert.assertEquals("1", dimensionSelector.lookupName(dimensionSelector.getRow().get(0)));
    Assert.assertEquals("0.5", extractionDimensionSelector.lookupName(extractionDimensionSelector.getRow().get(0)));
    Assert.assertEquals(1.0f, floatSelector.getFloat(), 0.0f);
    Assert.assertEquals(1L, longSelector.getLong());
}

Example 2 with BucketExtractionFn

use of org.apache.druid.query.extraction.BucketExtractionFn in project druid by druid-io.

the class ExpressionVirtualColumnTest method testDimensionSelectorWithExtraction.

@Test
public void testDimensionSelectorWithExtraction() {
    final DimensionSelector selector = X_PLUS_Y.makeDimensionSelector(new ExtractionDimensionSpec("expr", "x", new BucketExtractionFn(1.0, 0.0)), COLUMN_SELECTOR_FACTORY);
    final ValueMatcher nullMatcher = selector.makeValueMatcher((String) null);
    final ValueMatcher fiveMatcher = selector.makeValueMatcher("5");
    final ValueMatcher nonNullMatcher = selector.makeValueMatcher(Predicates.notNull());
    CURRENT_ROW.set(ROW0);
    Assert.assertEquals(true, nullMatcher.matches());
    Assert.assertEquals(false, fiveMatcher.matches());
    Assert.assertEquals(false, nonNullMatcher.matches());
    Assert.assertEquals(null, selector.lookupName(selector.getRow().get(0)));
    CURRENT_ROW.set(ROW1);
    if (NullHandling.replaceWithDefault()) {
        Assert.assertEquals(false, nullMatcher.matches());
        Assert.assertEquals(false, fiveMatcher.matches());
        Assert.assertEquals(true, nonNullMatcher.matches());
        Assert.assertEquals("4", selector.lookupName(selector.getRow().get(0)));
    } else {
        // y is null in row1
        Assert.assertEquals(true, nullMatcher.matches());
        Assert.assertEquals(false, fiveMatcher.matches());
        Assert.assertEquals(false, nonNullMatcher.matches());
        Assert.assertEquals(null, selector.lookupName(selector.getRow().get(0)));
    }
    CURRENT_ROW.set(ROW2);
    Assert.assertEquals(false, nullMatcher.matches());
    Assert.assertEquals(true, fiveMatcher.matches());
    Assert.assertEquals(true, nonNullMatcher.matches());
    Assert.assertEquals("5.1", selector.lookupName(selector.getRow().get(0)));
    CURRENT_ROW.set(ROW3);
    Assert.assertEquals(false, nullMatcher.matches());
    Assert.assertEquals(true, fiveMatcher.matches());
    Assert.assertEquals(true, nonNullMatcher.matches());
    Assert.assertEquals("5", selector.lookupName(selector.getRow().get(0)));
}