/* * 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.tuple; import java.util.ArrayList; 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.metadata.HiveException; import org.apache.hadoop.hive.ql.udf.generic.Collector; import org.apache.hadoop.hive.ql.udf.generic.GenericUDTF; import org.apache.hadoop.hive.serde2.objectinspector.ListObjectInspector; 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.StructField; import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector; 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.testng.Assert; import org.testng.annotations.Test; import org.apache.datasketches.tuple.ArrayOfDoublesUpdatableSketch; import org.apache.datasketches.tuple.ArrayOfDoublesUpdatableSketchBuilder; @SuppressWarnings("javadoc") public class ArrayOfDoublesSketchToValuesUDTFTest { static final ObjectInspector binaryInspector = PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.BINARY); static final ObjectInspector stringInspector = PrimitiveObjectInspectorFactory.javaStringObjectInspector; static final ObjectInspector structInspector = ObjectInspectorFactory.getStandardStructObjectInspector( Arrays.asList("a"), Arrays.asList(stringInspector) ); @SuppressWarnings("deprecation") @Test(expectedExceptions = UDFArgumentException.class) public void initializeNoInspectors() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { }; GenericUDTF func = new ArrayOfDoublesSketchToValuesUDTF(); func.initialize(inspectors); } @SuppressWarnings("deprecation") @Test(expectedExceptions = UDFArgumentException.class) public void initializeTooManyInspectors() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector, binaryInspector }; GenericUDTF func = new ArrayOfDoublesSketchToValuesUDTF(); func.initialize(inspectors); } @SuppressWarnings("deprecation") @Test(expectedExceptions = UDFArgumentTypeException.class) public void initializeWrongCategory() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { structInspector }; GenericUDTF func = new ArrayOfDoublesSketchToValuesUDTF(); func.initialize(inspectors); } @SuppressWarnings("deprecation") @Test(expectedExceptions = UDFArgumentTypeException.class) public void initializeWrongType() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { stringInspector }; GenericUDTF func = new ArrayOfDoublesSketchToValuesUDTF(); func.initialize(inspectors); } @SuppressWarnings({ "deprecation", "unchecked" }) @Test public void normalCase() throws Exception { ObjectInspector[] inspectors = new ObjectInspector[] { binaryInspector }; GenericUDTF func = new ArrayOfDoublesSketchToValuesUDTF(); ObjectInspector resultInspector = func.initialize(inspectors); checkResultInspector(resultInspector); ArrayOfDoublesUpdatableSketch sketch = new ArrayOfDoublesUpdatableSketchBuilder().setNumberOfValues(2).build(); sketch.update(1, new double[] {1, 2}); sketch.update(2, new double[] {1, 2}); MockCollector collector = new MockCollector(); func.setCollector(collector); func.process(new Object[] {new BytesWritable(sketch.toByteArray())}); Assert.assertEquals(collector.list.size(), 2); Assert.assertEquals(((Object[]) collector.list.get(0)).length, 1); Assert.assertEquals(((List<Double>) ((Object[]) collector.list.get(0))[0]), Arrays.asList(1.0, 2.0)); Assert.assertEquals(((List<Double>) ((Object[]) collector.list.get(1))[0]), Arrays.asList(1.0, 2.0)); } private static void checkResultInspector(ObjectInspector resultInspector) { Assert.assertNotNull(resultInspector); Assert.assertEquals(resultInspector.getCategory(), ObjectInspector.Category.STRUCT); List<? extends StructField> fields = ((StructObjectInspector) resultInspector).getAllStructFieldRefs(); Assert.assertEquals(fields.size(), 1); Assert.assertEquals(fields.get(0).getFieldObjectInspector().getCategory(), ObjectInspector.Category.LIST); Assert.assertEquals( ((PrimitiveObjectInspector) ((ListObjectInspector) fields.get(0).getFieldObjectInspector()).getListElementObjectInspector()).getPrimitiveCategory(), PrimitiveObjectInspector.PrimitiveCategory.DOUBLE ); } private static class MockCollector implements Collector { List<Object> list = new ArrayList<>(); @Override public void collect(Object object) throws HiveException { list.add(object); } } }