| /******************************************************************************* |
| * Copyright 2015, 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.theta; |
| |
| import static com.yahoo.sketches.Util.DEFAULT_UPDATE_SEED; |
| |
| 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.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; |
| 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.LongWritable; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| import com.yahoo.memory.Memory; |
| import com.yahoo.sketches.theta.Sketch; |
| import com.yahoo.sketches.theta.Sketches; |
| import com.yahoo.sketches.theta.UpdateSketch; |
| |
| @SuppressWarnings("javadoc") |
| public class IntersectSketchUDAFTest { |
| |
| static final ObjectInspector longInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.LONG); |
| |
| static final ObjectInspector binaryInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.BINARY); |
| |
| static final ObjectInspector structInspector = ObjectInspectorFactory.getStandardStructObjectInspector( |
| Arrays.asList("seed", "sketch"), |
| Arrays.asList(longInspector, binaryInspector) |
| ); |
| |
| @Test(expectedExceptions = UDFArgumentException.class) |
| public void getEvaluatorTooFewInspectors() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new IntersectSketchUDAF().getEvaluator(info); |
| } |
| |
| @Test(expectedExceptions = UDFArgumentException.class) |
| public void getEvaluatorTooManyInspectors() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, longInspector, longInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new IntersectSketchUDAF().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 IntersectSketchUDAF().getEvaluator(info); |
| } |
| |
| @Test(expectedExceptions = UDFArgumentTypeException.class) |
| public void getEvaluatorWrongTypeArg1() throws Exception { |
| ObjectInspector intInspector = |
| PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.INT); |
| ObjectInspector[] inspectors = new ObjectInspector[] { intInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new IntersectSketchUDAF().getEvaluator(info); |
| } |
| |
| @Test(expectedExceptions = UDFArgumentException.class) |
| public void getEvaluatorWrongCategoryArg2() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, structInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new IntersectSketchUDAF().getEvaluator(info); |
| } |
| |
| @Test(expectedExceptions = UDFArgumentException.class) |
| public void getEvaluatorWrongTypeArg2() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, binaryInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| new IntersectSketchUDAF().getEvaluator(info); |
| } |
| |
| // PARTIAL1 mode (Map phase in Map-Reduce): iterate + terminatePartial |
| @Test |
| public void partia1lDefaultSeed() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new IntersectSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); |
| checkIntermediateResultInspector(resultInspector); |
| |
| IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState state = |
| (IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState) eval.getNewAggregationBuffer(); |
| |
| UpdateSketch sketch1 = UpdateSketch.builder().build(); |
| sketch1.update(1); |
| sketch1.update(2); |
| sketch1.update(3); |
| eval.iterate(state, new Object[] { new BytesWritable(sketch1.toByteArray()) }); |
| |
| UpdateSketch sketch2 = UpdateSketch.builder().build(); |
| sketch2.update(2); |
| sketch2.update(3); |
| sketch2.update(4); |
| eval.iterate(state, new Object[] { 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(), 2); |
| Assert.assertEquals(((LongWritable) (r.get(0))).get(), DEFAULT_UPDATE_SEED); |
| Sketch resultSketch = Sketches.wrapSketch(Memory.wrap(((BytesWritable) (r.get(1))).getBytes())); |
| Assert.assertEquals(resultSketch.getRetainedEntries(true), 2); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| } |
| } |
| |
| @Test |
| public void partial1ModeExplicitSeed() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, longInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new IntersectSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL1, inspectors); |
| checkIntermediateResultInspector(resultInspector); |
| |
| final long seed = 1; |
| IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState state = |
| (IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState) eval.getNewAggregationBuffer(); |
| |
| UpdateSketch sketch1 = UpdateSketch.builder().setSeed(seed).build(); |
| sketch1.update(1); |
| sketch1.update(2); |
| sketch1.update(3); |
| eval.iterate(state, new Object[] {new BytesWritable(sketch1.toByteArray()), new LongWritable(seed)}); |
| |
| UpdateSketch sketch2 = UpdateSketch.builder().setSeed(seed).build(); |
| sketch2.update(2); |
| sketch2.update(3); |
| sketch2.update(4); |
| eval.iterate(state, new Object[] {new BytesWritable(sketch2.toByteArray()), new LongWritable(seed) }); |
| |
| Object result = eval.terminatePartial(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof List); |
| List<?> r = (List<?>) result; |
| Assert.assertEquals(r.size(), 2); |
| Assert.assertEquals(((LongWritable) (r.get(0))).get(), seed); |
| Sketch resultSketch = Sketches.wrapSketch(Memory.wrap(((BytesWritable) (r.get(1))).getBytes()), seed); |
| Assert.assertEquals(resultSketch.getRetainedEntries(true), 2); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| } |
| } |
| |
| // 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 IntersectSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.PARTIAL2, new ObjectInspector[] {structInspector}); |
| checkIntermediateResultInspector(resultInspector); |
| |
| IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState state = |
| (IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState) eval.getNewAggregationBuffer(); |
| |
| UpdateSketch sketch1 = UpdateSketch.builder().build(); |
| sketch1.update(1); |
| sketch1.update(2); |
| sketch1.update(3); |
| eval.merge(state, Arrays.asList( |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| new BytesWritable(sketch1.compact().toByteArray())) |
| ); |
| |
| UpdateSketch sketch2 = UpdateSketch.builder().build(); |
| sketch2.update(2); |
| sketch2.update(3); |
| sketch2.update(4); |
| eval.merge(state, Arrays.asList( |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| 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(), 2); |
| Assert.assertEquals(((LongWritable) (r.get(0))).get(), DEFAULT_UPDATE_SEED); |
| Sketch resultSketch = Sketches.wrapSketch(Memory.wrap(((BytesWritable) (r.get(1))).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| } |
| } |
| |
| // 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 IntersectSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.FINAL, new ObjectInspector[] {structInspector}); |
| DataToSketchUDAFTest.checkFinalResultInspector(resultInspector); |
| |
| IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState state = |
| (IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState) eval.getNewAggregationBuffer(); |
| |
| UpdateSketch sketch1 = UpdateSketch.builder().build(); |
| sketch1.update(1); |
| sketch1.update(2); |
| sketch1.update(3); |
| eval.merge(state, Arrays.asList( |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| new BytesWritable(sketch1.compact().toByteArray()) |
| )); |
| |
| UpdateSketch sketch2 = UpdateSketch.builder().build(); |
| sketch2.update(2); |
| sketch2.update(3); |
| sketch2.update(4); |
| eval.merge(state, Arrays.asList( |
| new LongWritable(DEFAULT_UPDATE_SEED), |
| new BytesWritable(sketch2.compact().toByteArray()) |
| )); |
| |
| BytesWritable bytes = (BytesWritable) eval.terminate(state); |
| Sketch resultSketch = Sketches.wrapSketch(Memory.wrap(bytes.getBytes())); |
| Assert.assertEquals(resultSketch.getRetainedEntries(true), 2); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| } |
| } |
| |
| // COMPLETE mode (single mode, alternative to MapReduce): iterate + terminate |
| @Test |
| public void completeModeDefaultSeed() throws Exception { |
| ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector }; |
| GenericUDAFParameterInfo info = new SimpleGenericUDAFParameterInfo(inspectors, false, false, false); |
| try (GenericUDAFEvaluator eval = new IntersectSketchUDAF().getEvaluator(info)) { |
| ObjectInspector resultInspector = eval.init(Mode.COMPLETE, inspectors); |
| DataToSketchUDAFTest.checkFinalResultInspector(resultInspector); |
| |
| IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState state = |
| (IntersectSketchUDAF.IntersectSketchUDAFEvaluator.IntersectionState) eval.getNewAggregationBuffer(); |
| |
| UpdateSketch sketch1 = UpdateSketch.builder().build(); |
| sketch1.update(1); |
| sketch1.update(2); |
| sketch1.update(3); |
| eval.iterate(state, new Object[] {new BytesWritable(sketch1.compact().toByteArray())}); |
| |
| UpdateSketch sketch2 = UpdateSketch.builder().build(); |
| sketch2.update(2); |
| sketch2.update(3); |
| sketch2.update(4); |
| eval.iterate(state, new Object[] {new BytesWritable(sketch2.compact().toByteArray())}); |
| |
| Object result = eval.terminate(state); |
| Assert.assertNotNull(result); |
| Assert.assertTrue(result instanceof BytesWritable); |
| Sketch resultSketch = Sketches.wrapSketch(Memory.wrap(((BytesWritable) result).getBytes())); |
| Assert.assertEquals(resultSketch.getEstimate(), 2.0); |
| |
| eval.reset(state); |
| result = eval.terminate(state); |
| Assert.assertNull(result); |
| } |
| } |
| |
| private 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(), 2); |
| |
| ObjectInspector inspector1 = ((StructField) fields.get(0)).getFieldObjectInspector(); |
| Assert.assertEquals(inspector1.getCategory(), ObjectInspector.Category.PRIMITIVE); |
| PrimitiveObjectInspector primitiveInspector1 = (PrimitiveObjectInspector) inspector1; |
| Assert.assertEquals(primitiveInspector1.getPrimitiveCategory(), PrimitiveCategory.LONG); |
| |
| ObjectInspector inspector2 = ((StructField) fields.get(1)).getFieldObjectInspector(); |
| Assert.assertEquals(inspector2.getCategory(), ObjectInspector.Category.PRIMITIVE); |
| PrimitiveObjectInspector primitiveInspector2 = (PrimitiveObjectInspector) inspector2; |
| Assert.assertEquals(primitiveInspector2.getPrimitiveCategory(), PrimitiveCategory.BINARY); |
| } |
| |
| } |