| /* |
| * 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.cpc; |
| |
| import static org.apache.datasketches.Util.DEFAULT_UPDATE_SEED; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.datasketches.cpc.CpcSketch; |
| import org.apache.datasketches.memory.Memory; |
| import org.apache.hadoop.hive.ql.exec.UDFArgumentException; |
| import org.apache.hadoop.hive.ql.exec.UDFArgumentTypeException; |
| import org.apache.hadoop.hive.ql.parse.SemanticException; |
| 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.io.DoubleWritable; |
| import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector; |
| import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory; |
| import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector; |
| import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory; |
| import org.apache.hadoop.hive.serde2.objectinspector.StructField; |
| import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector; |
| import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory; |
| import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory; |
| import org.apache.hadoop.io.BytesWritable; |
| import org.apache.hadoop.io.IntWritable; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.Text; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| @SuppressWarnings({"javadoc","resource"}) |
| public class DataToSketchUDAFTest { |
| |
| private static final ObjectInspector intInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.INT); |
| |
| private static final ObjectInspector longInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.LONG); |
| |
| private static final ObjectInspector doubleInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.DOUBLE); |
| |
| private static final ObjectInspector stringInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.STRING); |
| |
| private static final ObjectInspector binaryInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.BINARY); |
| |
| private static final ObjectInspector structInspector = ObjectInspectorFactory.getStandardStructObjectInspector( |
| Arrays.asList("lgK", "seed", "sketch"), |
| Arrays.asList(intInspector, longInspector, binaryInspector) |
| ); |
| |
| static final ObjectInspector intConstantInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(TypeInfoFactory.intTypeInfo, null); |
| |
| static final ObjectInspector longConstantInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableConstantObjectInspector(TypeInfoFactory.longTypeInfo, null); |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void tooFewArguments() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void tooManyArguments() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, intConstantInspector, longConstantInspector, longConstantInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidCategoryArg1() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { structInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void invalidCategoryArg2() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, structInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void invalidTypeArg2() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, stringInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void arg2notConst() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, intInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidCategoryArg3() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, intConstantInspector, structInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidTypeArg3() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, intConstantInspector, doubleInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void arg3notConst() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, intConstantInspector, longInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToSketchUDAF().getEvaluator(params); |
| } |
| |
| // PARTIAL1 mode (Map phase in Map-Reduce): iterate + terminatePartial |
| @Test |
| public void partial1ModeIntKeysDefaultParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); |
| checkIntermediateResultInspector(resultInspector); |
| |
| State state = (State) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new IntWritable(1)}); |
| eval.iterate(state, new Object[] {new IntWritable(2)}); |
| |
| Object result = eval.terminatePartial(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof List); |
| List<?> r = (List<?>) result; |
| Assert.assertEquals(r.size(), 3); |
| Assert.assertEquals(((IntWritable) r.get(0)).get(), SketchEvaluator.DEFAULT_LG_K); |
| Assert.assertEquals(((LongWritable) r.get(1)).get(), DEFAULT_UPDATE_SEED); |
| CpcSketch resultSketch = CpcSketch.heapify(Memory.wrap(((BytesWritable) r.get(2)).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.01); |
| } |
| } |
| |
| @Test |
| public void partial1ModeStringKeysExplicitParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { stringInspector, intConstantInspector, longConstantInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); |
| checkIntermediateResultInspector(resultInspector); |
| |
| final int lgK = 10; |
| final long seed = 123; |
| |
| State state = (State) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new Text("a"), new IntWritable(lgK), new LongWritable(seed)}); |
| eval.iterate(state, new Object[] {new Text("b"), new IntWritable(lgK), new LongWritable(seed)}); |
| |
| Object result = eval.terminatePartial(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof List); |
| List<?> r = (List<?>) result; |
| Assert.assertEquals(r.size(), 3); |
| Assert.assertEquals(((IntWritable) r.get(0)).get(), lgK); |
| Assert.assertEquals(((LongWritable) r.get(1)).get(), seed); |
| CpcSketch resultSketch = CpcSketch.heapify(Memory.wrap(((BytesWritable) r.get(2)).getBytes()), seed); |
| Assert.assertEquals(resultSketch.getLgK(), lgK); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.01); |
| } |
| } |
| |
| // PARTIAL2 mode (Combine phase in Map-Reduce): merge + terminatePartial |
| @Test |
| public void partial2Mode() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL2, new ObjectInspector[] {structInspector}); |
| checkIntermediateResultInspector(resultInspector); |
| |
| State state = (State) eval.getNewAggregationBuffer(); |
| |
| CpcSketch sketch1 = new CpcSketch(SketchEvaluator.DEFAULT_LG_K); |
| sketch1.update(1); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(SketchEvaluator.DEFAULT_LG_K), |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| new BytesWritable(sketch1.toByteArray())) |
| ); |
| |
| CpcSketch sketch2 = new CpcSketch(SketchEvaluator.DEFAULT_LG_K); |
| sketch2.update(2); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(SketchEvaluator.DEFAULT_LG_K), |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| new BytesWritable(sketch2.toByteArray())) |
| ); |
| |
| Object result = eval.terminatePartial(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof List); |
| List<?> r = (List<?>) result; |
| Assert.assertEquals(r.size(), 3); |
| Assert.assertEquals(((IntWritable) r.get(0)).get(), SketchEvaluator.DEFAULT_LG_K); |
| Assert.assertEquals(((LongWritable) r.get(1)).get(), DEFAULT_UPDATE_SEED); |
| CpcSketch resultSketch = CpcSketch.heapify(Memory.wrap(((BytesWritable) r.get(2)).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.01); |
| |
| eval.reset(state); |
| result = eval.terminate(state); |
| Assert.assertNull(result); |
| } |
| } |
| |
| // FINAL mode (Reduce phase in Map-Reduce): merge + terminate |
| @Test |
| public void finalMode() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.FINAL, new ObjectInspector[] {structInspector}); |
| checkFinalResultInspector(resultInspector); |
| |
| State state = (State) eval.getNewAggregationBuffer(); |
| |
| CpcSketch sketch1 = new CpcSketch(SketchEvaluator.DEFAULT_LG_K); |
| sketch1.update(1); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(SketchEvaluator.DEFAULT_LG_K), |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| new BytesWritable(sketch1.toByteArray())) |
| ); |
| |
| CpcSketch sketch2 = new CpcSketch(SketchEvaluator.DEFAULT_LG_K); |
| sketch2.update(2); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(SketchEvaluator.DEFAULT_LG_K), |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| new BytesWritable(sketch2.toByteArray())) |
| ); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| CpcSketch resultSketch = CpcSketch.heapify(Memory.wrap(((BytesWritable) result).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.01); |
| } |
| } |
| |
| @Test |
| public void finalModeCustomSeed() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.FINAL, new ObjectInspector[] {structInspector}); |
| checkFinalResultInspector(resultInspector); |
| |
| final long seed = 123; |
| final State state = (State) eval.getNewAggregationBuffer(); |
| |
| CpcSketch sketch1 = new CpcSketch(SketchEvaluator.DEFAULT_LG_K, seed); |
| sketch1.update(1); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(SketchEvaluator.DEFAULT_LG_K), |
| new LongWritable(seed), |
| new BytesWritable(sketch1.toByteArray())) |
| ); |
| |
| CpcSketch sketch2 = new CpcSketch(SketchEvaluator.DEFAULT_LG_K, seed); |
| sketch2.update(2); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(SketchEvaluator.DEFAULT_LG_K), |
| new LongWritable(seed), |
| new BytesWritable(sketch2.toByteArray())) |
| ); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| CpcSketch resultSketch = CpcSketch.heapify(Memory.wrap(((BytesWritable) result).getBytes()), seed); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.01); |
| } |
| } |
| |
| // COMPLETE mode (single mode, alternative to MapReduce): iterate + terminate |
| @Test |
| public void completeModeIntKeysDefaultParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.COMPLETE, inspectors); |
| checkFinalResultInspector(resultInspector); |
| |
| State state = (State) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new IntWritable(1)}); |
| eval.iterate(state, new Object[] {new IntWritable(2)}); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| CpcSketch resultSketch = CpcSketch.heapify(Memory.wrap(((BytesWritable) result).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.01); |
| |
| eval.reset(state); |
| result = eval.terminate(state); |
| Assert.assertNull(result); |
| } |
| } |
| |
| // COMPLETE mode (single mode, alternative to MapReduce): iterate + terminate |
| @Test |
| public void completeModeDoubleKeysExplicitParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { doubleInspector, intConstantInspector, longConstantInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.COMPLETE, inspectors); |
| checkFinalResultInspector(resultInspector); |
| |
| final int lgK = 4; |
| final long seed = 123; |
| |
| State state = (State) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new DoubleWritable(1), new IntWritable(lgK), new LongWritable(seed)}); |
| eval.iterate(state, new Object[] {new DoubleWritable(2), new IntWritable(lgK), new LongWritable(seed)}); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| CpcSketch resultSketch = CpcSketch.heapify(Memory.wrap(((BytesWritable) result).getBytes()), seed); |
| Assert.assertEquals(resultSketch.getLgK(), lgK); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.03); |
| |
| eval.reset(state); |
| result = eval.terminate(state); |
| Assert.assertNull(result); |
| } |
| } |
| |
| static void checkIntermediateResultInspector(ObjectInspector resultInspector) { |
| Assert.assertNotNull(resultInspector); |
| Assert.assertEquals(resultInspector.getCategory(), ObjectInspector.Category.STRUCT); |
| StructObjectInspector structResultInspector = (StructObjectInspector) resultInspector; |
| List<?> fields = structResultInspector.getAllStructFieldRefs(); |
| Assert.assertEquals(fields.size(), 3); |
| |
| ObjectInspector inspector1 = ((StructField) fields.get(0)).getFieldObjectInspector(); |
| Assert.assertEquals(inspector1.getCategory(), ObjectInspector.Category.PRIMITIVE); |
| PrimitiveObjectInspector primitiveInspector1 = (PrimitiveObjectInspector) inspector1; |
| Assert.assertEquals(primitiveInspector1.getPrimitiveCategory(), PrimitiveCategory.INT); |
| |
| ObjectInspector inspector2 = ((StructField) fields.get(1)).getFieldObjectInspector(); |
| Assert.assertEquals(inspector2.getCategory(), ObjectInspector.Category.PRIMITIVE); |
| PrimitiveObjectInspector primitiveInspector2 = (PrimitiveObjectInspector) inspector2; |
| Assert.assertEquals(primitiveInspector2.getPrimitiveCategory(), PrimitiveCategory.LONG); |
| |
| ObjectInspector inspector3 = ((StructField) fields.get(2)).getFieldObjectInspector(); |
| Assert.assertEquals(inspector3.getCategory(), ObjectInspector.Category.PRIMITIVE); |
| PrimitiveObjectInspector primitiveInspector3 = (PrimitiveObjectInspector) inspector3; |
| Assert.assertEquals(primitiveInspector3.getPrimitiveCategory(), PrimitiveCategory.BINARY); |
| } |
| |
| static void checkFinalResultInspector(ObjectInspector resultInspector) { |
| Assert.assertNotNull(resultInspector); |
| Assert.assertEquals(resultInspector.getCategory(), ObjectInspector.Category.PRIMITIVE); |
| Assert.assertEquals( |
| ((PrimitiveObjectInspector) resultInspector).getPrimitiveCategory(), |
| PrimitiveObjectInspector.PrimitiveCategory.BINARY |
| ); |
| } |
| |
| } |