/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.apache.datasketches.hive.kll; import java.util.Arrays; import org.apache.datasketches.hive.common.BytesWritableHelper; import org.apache.datasketches.kll.KllFloatsSketch; import org.apache.hadoop.hive.ql.exec.UDFArgumentException; import org.apache.hadoop.hive.ql.exec.UDFArgumentTypeException; import org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator; import org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator.Mode; import org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo; import org.apache.hadoop.hive.ql.udf.generic.SimpleGenericUDAFParameterInfo; import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector; import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory; import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory; import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory; import org.apache.hadoop.io.BytesWritable; import org.apache.hadoop.io.IntWritable; import org.testng.Assert; import org.testng.annotations.Test; @SuppressWarnings({"javadoc","resource"}) public class UnionSketchUDAFTest { static final ObjectInspector binaryInspector = PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.BINARY); static final ObjectInspector intInspector = PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.INT); static final ObjectInspector structInspector = ObjectInspectorFactory.getStandardStructObjectInspector( Arrays.asList("a"), Arrays.asList(binaryInspector) ); @Test(expectedExceptions = UDFArgumentException.class) public void getEvaluatorTooFewInspectors() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); new UnionSketchUDAF().getEvaluator(info); } @Test(expectedExceptions = UDFArgumentException.class) public void getEvaluatorTooManyInspectors() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, binaryInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); new UnionSketchUDAF().getEvaluator(info); } @Test(expectedExceptions = UDFArgumentTypeException.class) public void getEvaluatorWrongCategoryArg1() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { structInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); new UnionSketchUDAF().getEvaluator(info); } @Test(expectedExceptions = UDFArgumentTypeException.class) public void getEvaluatorWrongTypeArg1() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); new UnionSketchUDAF().getEvaluator(info); } @Test(expectedExceptions = UDFArgumentTypeException.class) public void getEvaluatorWrongCategoryArg2() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, structInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); new UnionSketchUDAF().getEvaluator(info); } @Test(expectedExceptions = UDFArgumentTypeException.class) public void getEvaluatorWrongTypeArg2() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, binaryInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); new UnionSketchUDAF().getEvaluator(info); } // PARTIAL1 mode (Map phase in Map-Reduce): iterate + terminatePartial @Test public void partia1ModelDefaultKDowsizeInput() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); try (GenericUDAFEvaluator eval = new UnionSketchUDAF().getEvaluator(info)) { ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); DataToSketchUDAFTest.checkResultInspector(resultInspector); SketchState state = (SketchState) eval.getNewAggregationBuffer(); KllFloatsSketch sketch1 = new KllFloatsSketch(400); sketch1.update(1); eval.iterate(state, new Object[] { new BytesWritable(sketch1.toByteArray()) }); KllFloatsSketch sketch2 = new KllFloatsSketch(400); sketch2.update(2); eval.iterate(state, new Object[] { new BytesWritable(sketch2.toByteArray()) }); BytesWritable bytes = (BytesWritable) eval.terminatePartial(state); KllFloatsSketch resultSketch = KllFloatsSketch.heapify(BytesWritableHelper.wrapAsMemory(bytes)); Assert.assertEquals(resultSketch.getNormalizedRankError(false), KllFloatsSketch.getNormalizedRankError(200, false)); Assert.assertEquals(resultSketch.getNumRetained(), 2); Assert.assertEquals(resultSketch.getMinValue(), 1f); Assert.assertEquals(resultSketch.getMaxValue(), 2f); } } @Test public void partia1ModelGivenK() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, intInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); try (GenericUDAFEvaluator eval = new UnionSketchUDAF().getEvaluator(info)) { ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); DataToSketchUDAFTest.checkResultInspector(resultInspector); SketchState state = (SketchState) eval.getNewAggregationBuffer(); KllFloatsSketch sketch1 = new KllFloatsSketch(400); sketch1.update(1); eval.iterate(state, new Object[] { new BytesWritable(sketch1.toByteArray()), new IntWritable(400) }); KllFloatsSketch sketch2 = new KllFloatsSketch(400); sketch2.update(2); eval.iterate(state, new Object[] { new BytesWritable(sketch2.toByteArray()), new IntWritable(400) }); BytesWritable bytes = (BytesWritable) eval.terminatePartial(state); KllFloatsSketch resultSketch = KllFloatsSketch.heapify(BytesWritableHelper.wrapAsMemory(bytes)); Assert.assertEquals(resultSketch.getNormalizedRankError(false), KllFloatsSketch.getNormalizedRankError(400, false)); Assert.assertEquals(resultSketch.getNumRetained(), 2); Assert.assertEquals(resultSketch.getMinValue(), 1f); Assert.assertEquals(resultSketch.getMaxValue(), 2f); } } // PARTIAL2 mode (Combine phase in Map-Reduce): merge + terminatePartial @Test public void partial2Mode() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); try (GenericUDAFEvaluator eval = new UnionSketchUDAF().getEvaluator(info)) { ObjectInspector resultInspector = eval.init(Mode.PARTIAL2, inspectors); DataToSketchUDAFTest.checkResultInspector(resultInspector); SketchState state = (SketchState) eval.getNewAggregationBuffer(); KllFloatsSketch sketch1 = new KllFloatsSketch(400); sketch1.update(1); eval.merge(state, new BytesWritable(sketch1.toByteArray())); KllFloatsSketch sketch2 = new KllFloatsSketch(400); sketch2.update(2); eval.merge(state, new BytesWritable(sketch2.toByteArray())); BytesWritable bytes = (BytesWritable) eval.terminatePartial(state); KllFloatsSketch resultSketch = KllFloatsSketch.heapify(BytesWritableHelper.wrapAsMemory(bytes)); Assert.assertEquals(resultSketch.getNormalizedRankError(false), KllFloatsSketch.getNormalizedRankError(400, false)); Assert.assertEquals(resultSketch.getNumRetained(), 2); Assert.assertEquals(resultSketch.getMinValue(), 1f); Assert.assertEquals(resultSketch.getMaxValue(), 2f); } } // FINAL mode (Reduce phase in Map-Reduce): merge + terminate @Test public void finalMode() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); try (GenericUDAFEvaluator eval = new UnionSketchUDAF().getEvaluator(info)) { ObjectInspector resultInspector = eval.init(Mode.FINAL, inspectors); DataToSketchUDAFTest.checkResultInspector(resultInspector); SketchState state = (SketchState) eval.getNewAggregationBuffer(); KllFloatsSketch sketch1 = new KllFloatsSketch(400); sketch1.update(1); eval.merge(state, new BytesWritable(sketch1.toByteArray())); KllFloatsSketch sketch2 = new KllFloatsSketch(400); sketch2.update(2); eval.merge(state, new BytesWritable(sketch2.toByteArray())); BytesWritable bytes = (BytesWritable) eval.terminate(state); KllFloatsSketch resultSketch = KllFloatsSketch.heapify(BytesWritableHelper.wrapAsMemory(bytes)); Assert.assertEquals(resultSketch.getNormalizedRankError(false), KllFloatsSketch.getNormalizedRankError(400, false)); Assert.assertEquals(resultSketch.getNumRetained(), 2); Assert.assertEquals(resultSketch.getMinValue(), 1f); Assert.assertEquals(resultSketch.getMaxValue(), 2f); } } // COMPLETE mode (single mode, alternative to MapReduce): iterate + terminate @Test public void completeModelDefaultK() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector }; GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); try (GenericUDAFEvaluator eval = new UnionSketchUDAF().getEvaluator(info)) { ObjectInspector resultInspector = eval.init(Mode.COMPLETE, inspectors); DataToSketchUDAFTest.checkResultInspector(resultInspector); SketchState state = (SketchState) eval.getNewAggregationBuffer(); KllFloatsSketch sketch1 = new KllFloatsSketch(); sketch1.update(1); eval.iterate(state, new Object[] { new BytesWritable(sketch1.toByteArray()) }); KllFloatsSketch sketch2 = new KllFloatsSketch(); sketch2.update(2); eval.iterate(state, new Object[] { new BytesWritable(sketch2.toByteArray()) }); BytesWritable bytes = (BytesWritable) eval.terminatePartial(state); KllFloatsSketch resultSketch = KllFloatsSketch.heapify(BytesWritableHelper.wrapAsMemory(bytes)); Assert.assertEquals(resultSketch.getNormalizedRankError(false), KllFloatsSketch.getNormalizedRankError(200, false)); Assert.assertEquals(resultSketch.getNumRetained(), 2); Assert.assertEquals(resultSketch.getMinValue(), 1f); Assert.assertEquals(resultSketch.getMaxValue(), 2f); eval.reset(state); Assert.assertNull(eval.terminate(state)); } } }