hequn8128 commented on a change in pull request #11112: [FLINK-16121][python] Introduce ArrowReader and ArrowWriter for Arrow format data read and write URL: https://github.com/apache/flink/pull/11112#discussion_r382413045
########## File path: flink-python/src/test/java/org/apache/flink/table/runtime/arrow/ArrowUtilsTest.java ########## @@ -0,0 +1,147 @@ +/* + * 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.flink.table.runtime.arrow; + +import org.apache.flink.api.java.tuple.Tuple7; +import org.apache.flink.table.dataformat.BaseRow; +import org.apache.flink.table.dataformat.vector.ColumnVector; +import org.apache.flink.table.runtime.arrow.readers.BigIntFieldReader; +import org.apache.flink.table.runtime.arrow.readers.IntFieldReader; +import org.apache.flink.table.runtime.arrow.readers.SmallIntFieldReader; +import org.apache.flink.table.runtime.arrow.readers.TinyIntFieldReader; +import org.apache.flink.table.runtime.arrow.vectors.ArrowBigIntColumnVector; +import org.apache.flink.table.runtime.arrow.vectors.ArrowIntColumnVector; +import org.apache.flink.table.runtime.arrow.vectors.ArrowSmallIntColumnVector; +import org.apache.flink.table.runtime.arrow.vectors.ArrowTinyIntColumnVector; +import org.apache.flink.table.runtime.arrow.writers.BaseRowBigIntWriter; +import org.apache.flink.table.runtime.arrow.writers.BaseRowIntWriter; +import org.apache.flink.table.runtime.arrow.writers.BaseRowSmallIntWriter; +import org.apache.flink.table.runtime.arrow.writers.BaseRowTinyIntWriter; +import org.apache.flink.table.runtime.arrow.writers.BigIntWriter; +import org.apache.flink.table.runtime.arrow.writers.IntWriter; +import org.apache.flink.table.runtime.arrow.writers.SmallIntWriter; +import org.apache.flink.table.runtime.arrow.writers.TinyIntWriter; +import org.apache.flink.table.types.logical.BigIntType; +import org.apache.flink.table.types.logical.IntType; +import org.apache.flink.table.types.logical.LogicalType; +import org.apache.flink.table.types.logical.RowType; +import org.apache.flink.table.types.logical.SmallIntType; +import org.apache.flink.table.types.logical.TinyIntType; +import org.apache.flink.types.Row; + +import org.apache.arrow.memory.BufferAllocator; +import org.apache.arrow.vector.VectorSchemaRoot; +import org.apache.arrow.vector.types.pojo.ArrowType; +import org.apache.arrow.vector.types.pojo.Field; +import org.apache.arrow.vector.types.pojo.Schema; +import org.junit.BeforeClass; +import org.junit.Test; + +import java.util.ArrayList; +import java.util.List; + +import static org.junit.Assert.assertEquals; + +/** + * Tests for {@link ArrowUtils}. + */ +public class ArrowUtilsTest { + + private static List<Tuple7<String, LogicalType, ArrowType, Class<?>, Class<?>, Class<?>, Class<?>>> testFields; + private static RowType rowType; + private static BufferAllocator allocator; + + @BeforeClass + public static void init() { + testFields = new ArrayList<>(); + testFields.add(Tuple7.of( + "f1", new TinyIntType(), new ArrowType.Int(8, true), TinyIntWriter.class, + BaseRowTinyIntWriter.class, TinyIntFieldReader.class, ArrowTinyIntColumnVector.class)); + testFields.add(Tuple7.of("f2", new SmallIntType(), new ArrowType.Int(8 * 2, true), + SmallIntWriter.class, BaseRowSmallIntWriter.class, SmallIntFieldReader.class, ArrowSmallIntColumnVector.class)); + testFields.add(Tuple7.of("f3", new IntType(), new ArrowType.Int(8 * 4, true), + IntWriter.class, BaseRowIntWriter.class, IntFieldReader.class, ArrowIntColumnVector.class)); + testFields.add(Tuple7.of("f4", new BigIntType(), new ArrowType.Int(8 * 8, true), + BigIntWriter.class, BaseRowBigIntWriter.class, BigIntFieldReader.class, ArrowBigIntColumnVector.class)); + + List<RowType.RowField> rowFields = new ArrayList<>(); + for (Tuple7<String, LogicalType, ArrowType, Class<?>, Class<?>, Class<?>, Class<?>> field : testFields) { + rowFields.add(new RowType.RowField(field.f0, field.f1)); + } + rowType = new RowType(rowFields); + + allocator = ArrowUtils.ROOT_ALLOCATOR.newChildAllocator( + "stdout", 0, Long.MAX_VALUE); + } + + @Test + public void testConvertBetweenLogicalTypeAndArrowType() { + Schema schema = ArrowUtils.toArrowSchema(rowType); + + assertEquals(testFields.size(), schema.getFields().size()); + List<Field> fields = schema.getFields(); + for (int i = 0; i < schema.getFields().size(); i++) { + // verify convert from RowType to ArrowType + assertEquals(testFields.get(i).f0, fields.get(i).getName()); + assertEquals(testFields.get(i).f2, fields.get(i).getType()); + // verify convert from ArrowType to LogicalType + assertEquals(testFields.get(i).f1, ArrowUtils.fromArrowField(fields.get(i))); + } + } + + @Test + public void testCreateArrowReader() { + VectorSchemaRoot root = VectorSchemaRoot.create(ArrowUtils.toArrowSchema(rowType), allocator); + RowArrowReader reader = ArrowUtils.createArrowReader(root); + ArrowFieldReader[] fieldReaders = reader.getFieldReaders(); + for (int i = 0; i < fieldReaders.length; i++) { + assertEquals(testFields.get(i).f5, fieldReaders[i].getClass()); + } + } + + @Test + public void testCreateBlinkArrowReader() { Review comment: testCreateBaseRowArrowReader ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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