| /* |
| * Copyright 2016, Yahoo! Inc. |
| * Licensed under the terms of the Apache License 2.0. See LICENSE file at the project root for terms. |
| */ |
| |
| package com.yahoo.sketches.hive.tuple; |
| |
| import static com.yahoo.sketches.Util.DEFAULT_NOMINAL_ENTRIES; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| 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.io.BytesWritable; |
| import org.apache.hadoop.io.FloatWritable; |
| import org.apache.hadoop.io.IntWritable; |
| import org.apache.hadoop.io.Text; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| import com.yahoo.memory.Memory; |
| import com.yahoo.sketches.tuple.ArrayOfDoublesSketch; |
| import com.yahoo.sketches.tuple.ArrayOfDoublesSketches; |
| import com.yahoo.sketches.tuple.ArrayOfDoublesUpdatableSketch; |
| import com.yahoo.sketches.tuple.ArrayOfDoublesUpdatableSketchBuilder; |
| |
| @SuppressWarnings("javadoc") |
| public class DataToArrayOfDoublesSketchUDAFTest { |
| |
| private static final ObjectInspector intInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.INT); |
| |
| private static final ObjectInspector doubleInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.DOUBLE); |
| |
| private static final ObjectInspector stringInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.STRING); |
| |
| private static final ObjectInspector floatInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.FLOAT); |
| |
| private static final ObjectInspector binaryInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.BINARY); |
| |
| private static final ObjectInspector structInspector = ObjectInspectorFactory.getStandardStructObjectInspector( |
| Arrays.asList("nominalEntries", "numValues", "sketch"), |
| Arrays.asList(intInspector, intInspector, binaryInspector) |
| ); |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void tooFewArguments() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidCategoryArg1() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { structInspector, doubleInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().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 DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void invalidTypeArg2() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, intInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidCategoryNominalNumEntriesArg3() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector, structInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidTypeNominalNumEntriesArg3() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector, floatInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidCategoryNumNominalEntriesArg4() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector, doubleInspector, structInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidTypeNumNominalEntriesArg4() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector, doubleInspector, floatInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidCategorySamplingProbability() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector, intInspector, structInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentTypeException.class }) |
| public void invalidTypeSamplingProbability() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector, intInspector, intInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| @Test(expectedExceptions = { UDFArgumentException.class }) |
| public void extraParameter() throws SemanticException { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector, intInspector, floatInspector, intInspector }; |
| GenericUDAFParameterInfo params = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new DataToArrayOfDoublesSketchUDAF().getEvaluator(params); |
| } |
| |
| // PARTIAL1 mode (Map phase in Map-Reduce): iterate + terminatePartial |
| @Test |
| public void partial1ModeIntKeysDefaultParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToArrayOfDoublesSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); |
| checkIntermediateResultInspector(resultInspector); |
| |
| ArrayOfDoublesState state = (ArrayOfDoublesState) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new IntWritable(1), new DoubleWritable(1.0)}); |
| eval.iterate(state, new Object[] {new IntWritable(2), new DoubleWritable(1.0)}); |
| |
| 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(), DEFAULT_NOMINAL_ENTRIES); |
| Assert.assertEquals(((IntWritable) (r.get(1))).get(), 1); |
| ArrayOfDoublesSketch resultSketch = ArrayOfDoublesSketches.wrapSketch(Memory.wrap(((BytesWritable) (r.get(2))).getBytes())); |
| Assert.assertFalse(resultSketch.isEstimationMode()); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| } |
| } |
| |
| @Test |
| public void partial1ModeStringKeysExplicitParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { stringInspector, doubleInspector, doubleInspector, intInspector, floatInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToArrayOfDoublesSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); |
| checkIntermediateResultInspector(resultInspector); |
| |
| ArrayOfDoublesState state = (ArrayOfDoublesState) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new Text("a"), new DoubleWritable(1), new DoubleWritable(2), new IntWritable(32), new FloatWritable(0.99f)}); |
| eval.iterate(state, new Object[] {new Text("b"), new DoubleWritable(1), new DoubleWritable(2), new IntWritable(32), new FloatWritable(0.99f)}); |
| |
| 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(), 32); |
| Assert.assertEquals(((IntWritable) (r.get(1))).get(), 2); |
| ArrayOfDoublesSketch resultSketch = ArrayOfDoublesSketches.wrapSketch(Memory.wrap(((BytesWritable) (r.get(2))).getBytes())); |
| // because of sampling probability < 1 |
| Assert.assertTrue(resultSketch.isEstimationMode()); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.05); |
| } |
| } |
| |
| // PARTIAL2 mode (Combine phase in Map-Reduce): merge + terminatePartial |
| @Test |
| public void partial2Mode() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToArrayOfDoublesSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL2, new ObjectInspector[] {structInspector}); |
| checkIntermediateResultInspector(resultInspector); |
| |
| ArrayOfDoublesState state = (ArrayOfDoublesState) eval.getNewAggregationBuffer(); |
| |
| ArrayOfDoublesUpdatableSketch sketch1 = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketch1.update(1, new double[] {1}); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(DEFAULT_NOMINAL_ENTRIES), |
| new IntWritable(1), |
| new BytesWritable(sketch1.compact().toByteArray())) |
| ); |
| |
| ArrayOfDoublesUpdatableSketch sketch2 = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketch2.update(2, new double[] {1}); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(DEFAULT_NOMINAL_ENTRIES), |
| new IntWritable(1), |
| new BytesWritable(sketch2.compact().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(), DEFAULT_NOMINAL_ENTRIES); |
| Assert.assertEquals(((IntWritable) (r.get(1))).get(), 1); |
| ArrayOfDoublesSketch resultSketch = ArrayOfDoublesSketches.wrapSketch(Memory.wrap(((BytesWritable) (r.get(2))).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| |
| 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, doubleInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToArrayOfDoublesSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.FINAL, new ObjectInspector[] {structInspector}); |
| checkFinalResultInspector(resultInspector); |
| |
| ArrayOfDoublesState state = (ArrayOfDoublesState) eval.getNewAggregationBuffer(); |
| |
| ArrayOfDoublesUpdatableSketch sketch1 = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketch1.update(1, new double[] {1}); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(DEFAULT_NOMINAL_ENTRIES), |
| new IntWritable(1), |
| new BytesWritable(sketch1.compact().toByteArray())) |
| ); |
| |
| ArrayOfDoublesUpdatableSketch sketch2 = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketch2.update(2, new double[] {1}); |
| eval.merge(state, Arrays.asList( |
| new IntWritable(DEFAULT_NOMINAL_ENTRIES), |
| new IntWritable(1), |
| new BytesWritable(sketch2.compact().toByteArray())) |
| ); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| ArrayOfDoublesSketch resultSketch = ArrayOfDoublesSketches.wrapSketch(Memory.wrap(((BytesWritable) result).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| } |
| } |
| |
| // COMPLETE mode (single mode, alternative to MapReduce): iterate + terminate |
| @Test |
| public void completeModeIntKeysDefaultParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToArrayOfDoublesSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.COMPLETE, inspectors); |
| checkFinalResultInspector(resultInspector); |
| |
| ArrayOfDoublesState state = (ArrayOfDoublesState) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new IntWritable(1), new DoubleWritable(1)}); |
| eval.iterate(state, new Object[] {new IntWritable(2), new DoubleWritable(1)}); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| ArrayOfDoublesSketch resultSketch = ArrayOfDoublesSketches.wrapSketch(Memory.wrap(((BytesWritable) result).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| |
| eval.reset(state); |
| result = eval.terminate(state); |
| Assert.assertNull(result); |
| } |
| } |
| |
| @Test |
| public void completeModeDoubleKeysExplicitParams() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { doubleInspector, doubleInspector, doubleInspector, intInspector, floatInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToArrayOfDoublesSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.COMPLETE, inspectors); |
| checkFinalResultInspector(resultInspector); |
| |
| ArrayOfDoublesState state = (ArrayOfDoublesState) eval.getNewAggregationBuffer(); |
| eval.iterate(state, new Object[] {new DoubleWritable(1), new DoubleWritable(1), new DoubleWritable(2), new IntWritable(32), new FloatWritable(0.99f)}); |
| eval.iterate(state, new Object[] {new DoubleWritable(2), new DoubleWritable(1), new DoubleWritable(2), new IntWritable(32), new FloatWritable(0.99f)}); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| ArrayOfDoublesSketch resultSketch = ArrayOfDoublesSketches.wrapSketch(Memory.wrap(((BytesWritable) result).getBytes())); |
| // because of sampling probability < 1 |
| Assert.assertTrue(resultSketch.isEstimationMode()); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0, 0.05); |
| |
| eval.reset(state); |
| result = eval.terminate(state); |
| Assert.assertNull(result); |
| } |
| } |
| |
| @Test |
| public void completeModeCheckTrimmingToNominal() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector, doubleInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new DataToArrayOfDoublesSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.COMPLETE, inspectors); |
| checkFinalResultInspector(resultInspector); |
| |
| ArrayOfDoublesState state = (ArrayOfDoublesState) eval.getNewAggregationBuffer(); |
| for (int i = 0; i < 10000; i++) { |
| eval.iterate(state, new Object[] {new IntWritable(i), new DoubleWritable(1)}); |
| } |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| ArrayOfDoublesSketch resultSketch = ArrayOfDoublesSketches.wrapSketch(Memory.wrap(((BytesWritable) result).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 10000.0, 10000 * 0.03); |
| Assert.assertTrue(resultSketch.getRetainedEntries() <= 4096, "retained entries: " + resultSketch.getRetainedEntries()); |
| |
| 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.INT); |
| |
| 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 |
| ); |
| } |
| |
| } |