| /* |
| * 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.drill.exec.store.parquet; |
| |
| import org.apache.drill.categories.ParquetTest; |
| import org.apache.drill.categories.UnlikelyTest; |
| import org.apache.drill.common.expression.SchemaPath; |
| import org.apache.drill.test.BaseTest; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.parquet.hadoop.metadata.ParquetMetadata; |
| import org.apache.parquet.hadoop.ParquetFileReader; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import java.util.List; |
| import java.util.ArrayList; |
| |
| import java.io.IOException; |
| |
| /** |
| * This test checks correctness of complex column detection in the Parquet file schema. |
| */ |
| @Category({ParquetTest.class, UnlikelyTest.class}) |
| public class TestComplexColumnInSchema extends BaseTest { |
| |
| /* |
| Parquet schema: |
| message root { |
| optional int64 id; |
| optional binary a (UTF8); |
| repeated int64 repeated; |
| optional binary VariableCase (UTF8); |
| optional group nested { |
| optional int64 id; |
| repeated int64 repeated; |
| optional binary VaRiAbLeCaSe (UTF8); |
| } |
| } |
| |
| Data set: |
| complex_special_cases.parquet |
| { |
| "id": 1, |
| "a": "some string", |
| "repeated": [1, 2], |
| "VariableCase": "top level variable case column", |
| "nested": { |
| "id": 2, |
| "repeated": [3, 4], |
| "VaRiAbLeCaSe": "nested variable case column" |
| } |
| } |
| */ |
| private static final String path = "src/test/resources/store/parquet/complex/complex_special_cases.parquet"; |
| private static ParquetMetadata footer; |
| |
| @BeforeClass |
| public static void setup() throws IOException { |
| Configuration conf = new Configuration(); |
| |
| footer = ParquetFileReader.readFooter(conf, new Path(path)); |
| } |
| |
| @Test |
| public void testGroupTypeColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("nested")); |
| assertTrue("GroupType column must be detected as complex", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testNestedColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("nested", "id")); |
| assertTrue("Nested column must be detected as complex", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testCombinedColumns() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("id")); |
| columns.add(SchemaPath.getCompoundPath("nested", "id")); |
| assertTrue("Nested column in the list list must be detected as complex", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testSimpleColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("id")); |
| assertFalse("No complex column must be detected", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testSimpleColumns() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("id")); |
| columns.add(SchemaPath.getCompoundPath("a")); |
| assertFalse("No complex columns must be detected", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testNonexistentColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("nonexistent")); |
| assertFalse("No complex column must be detected", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testVariableCaseColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("variablecase")); |
| assertFalse("No complex column must be detected", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testVariableCaseSchemaPath() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("VaRiAbLeCaSe")); |
| assertFalse("No complex column must be detected", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testNestedVariableCaseColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("nested", "variablecase")); |
| assertTrue("Nested variable case column must be detected as complex", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testRepeatedColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("repeated")); |
| assertTrue("Repeated column must be detected as complex", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| |
| @Test |
| public void testNestedRepeatedColumn() { |
| List<SchemaPath> columns = new ArrayList<>(); |
| columns.add(SchemaPath.getCompoundPath("nested", "repeated")); |
| assertTrue("Nested repeated column must be detected as complex", |
| ParquetReaderUtility.containsComplexColumn(footer, columns)); |
| } |
| } |