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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | + * or more contributor license agreements. See the NOTICE file |
| 4 | + * distributed with this work for additional information |
| 5 | + * regarding copyright ownership. The ASF licenses this file |
| 6 | + * to you under the Apache License, Version 2.0 (the |
| 7 | + * "License"); you may not use this file except in compliance |
| 8 | + * with the License. You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, |
| 13 | + * software distributed under the License is distributed on an |
| 14 | + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | + * KIND, either express or implied. See the License for the |
| 16 | + * specific language governing permissions and limitations |
| 17 | + * under the License. |
| 18 | + */ |
| 19 | +package org.apache.iceberg.data.parquet; |
| 20 | + |
| 21 | +import static org.assertj.core.api.Assertions.assertThat; |
| 22 | + |
| 23 | +import java.io.File; |
| 24 | +import java.io.IOException; |
| 25 | +import java.nio.ByteBuffer; |
| 26 | +import java.nio.file.Path; |
| 27 | +import java.util.List; |
| 28 | +import org.apache.hadoop.conf.Configuration; |
| 29 | +import org.apache.iceberg.DataFile; |
| 30 | +import org.apache.iceberg.DataFiles; |
| 31 | +import org.apache.iceberg.FileFormat; |
| 32 | +import org.apache.iceberg.Metrics; |
| 33 | +import org.apache.iceberg.PartitionSpec; |
| 34 | +import org.apache.iceberg.Schema; |
| 35 | +import org.apache.iceberg.Table; |
| 36 | +import org.apache.iceberg.TableProperties; |
| 37 | +import org.apache.iceberg.Tables; |
| 38 | +import org.apache.iceberg.data.GenericAppenderFactory; |
| 39 | +import org.apache.iceberg.data.GenericRecord; |
| 40 | +import org.apache.iceberg.data.IcebergGenerics; |
| 41 | +import org.apache.iceberg.data.Record; |
| 42 | +import org.apache.iceberg.hadoop.HadoopInputFile; |
| 43 | +import org.apache.iceberg.hadoop.HadoopOutputFile; |
| 44 | +import org.apache.iceberg.hadoop.HadoopTables; |
| 45 | +import org.apache.iceberg.io.CloseableIterable; |
| 46 | +import org.apache.iceberg.io.OutputFile; |
| 47 | +import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap; |
| 48 | +import org.apache.iceberg.relocated.com.google.common.collect.Lists; |
| 49 | +import org.apache.iceberg.types.Types; |
| 50 | +import org.apache.iceberg.util.ByteBuffers; |
| 51 | +import org.junit.jupiter.api.Test; |
| 52 | +import org.junit.jupiter.api.io.TempDir; |
| 53 | +import org.locationtech.jts.geom.Coordinate; |
| 54 | +import org.locationtech.jts.geom.Geometry; |
| 55 | +import org.locationtech.jts.geom.GeometryFactory; |
| 56 | +import org.locationtech.jts.geom.Point; |
| 57 | +import org.locationtech.jts.io.ParseException; |
| 58 | +import org.locationtech.jts.io.WKBReader; |
| 59 | +import org.locationtech.jts.io.WKBWriter; |
| 60 | + |
| 61 | +public class TestGeographyReadersAndWriters { |
| 62 | + private final Schema schema; |
| 63 | + private static final Configuration CONF = new Configuration(); |
| 64 | + private static final Tables TABLES = new HadoopTables(CONF); |
| 65 | + |
| 66 | + @TempDir Path tempDir; |
| 67 | + |
| 68 | + private final List<Record> testData; |
| 69 | + |
| 70 | + public TestGeographyReadersAndWriters() { |
| 71 | + this.schema = |
| 72 | + new Schema( |
| 73 | + Types.NestedField.required(1, "id", Types.LongType.get()), |
| 74 | + Types.NestedField.optional(3, "geog", Types.GeographyType.crs84())); |
| 75 | + testData = prepareTestData(); |
| 76 | + } |
| 77 | + |
| 78 | + private List<Record> prepareTestData() { |
| 79 | + List<Record> recordList = Lists.newArrayList(); |
| 80 | + GeometryFactory factory = new GeometryFactory(); |
| 81 | + WKBWriter wkbWriter = new WKBWriter(); |
| 82 | + for (long id = 0; id < 1000; id++) { |
| 83 | + // lng: -100 to 100, lat: -50 to 50 |
| 84 | + double lng = id * 0.2 - 100; |
| 85 | + double lat = id * 0.1 - 50; |
| 86 | + Coordinate center = new Coordinate(lng, lat); |
| 87 | + byte[] wkb = wkbWriter.write(factory.createPoint(center)); |
| 88 | + ByteBuffer geog = ByteBuffer.wrap(wkb); |
| 89 | + Record record = GenericRecord.create(schema); |
| 90 | + record.setField("id", id); |
| 91 | + record.setField("geog", geog); |
| 92 | + recordList.add(record); |
| 93 | + } |
| 94 | + return recordList; |
| 95 | + } |
| 96 | + |
| 97 | + @Test |
| 98 | + public void testWriteAndReadGeometryValues() throws IOException, ParseException { |
| 99 | + // Create a table |
| 100 | + File location = tempDir.resolve("geog-table-1").toFile(); |
| 101 | + Table table = |
| 102 | + TABLES.create( |
| 103 | + schema, |
| 104 | + PartitionSpec.unpartitioned(), |
| 105 | + ImmutableMap.of( |
| 106 | + TableProperties.FORMAT_VERSION, "3", |
| 107 | + TableProperties.DEFAULT_FILE_FORMAT, "parquet"), |
| 108 | + location.toString()); |
| 109 | + |
| 110 | + // Write some data |
| 111 | + GenericAppenderFactory appenderFactory = new GenericAppenderFactory(table.schema()); |
| 112 | + Path path = tempDir.resolve("data.parquet"); |
| 113 | + OutputFile outputFile = |
| 114 | + HadoopOutputFile.fromPath(new org.apache.hadoop.fs.Path(path.toString()), CONF); |
| 115 | + try (var fileAppender = appenderFactory.newAppender(outputFile, FileFormat.PARQUET)) { |
| 116 | + fileAppender.addAll(testData); |
| 117 | + fileAppender.close(); |
| 118 | + Metrics metrics = fileAppender.metrics(); |
| 119 | + |
| 120 | + // Commit the data file to the table |
| 121 | + DataFile dataFile = |
| 122 | + DataFiles.builder(PartitionSpec.unpartitioned()) |
| 123 | + .withInputFile( |
| 124 | + HadoopInputFile.fromPath(new org.apache.hadoop.fs.Path(path.toString()), CONF)) |
| 125 | + .withFormat(FileFormat.PARQUET) |
| 126 | + .withMetrics(metrics) |
| 127 | + .build(); |
| 128 | + table.newAppend().appendFile(dataFile).commit(); |
| 129 | + |
| 130 | + // Read the data |
| 131 | + WKBReader wkbReader = new WKBReader(); |
| 132 | + try (CloseableIterable<Record> reader = IcebergGenerics.read(table).build()) { |
| 133 | + int numRecords = 0; |
| 134 | + for (Record record : reader) { |
| 135 | + ByteBuffer geogWkb = (ByteBuffer) record.getField("geog"); |
| 136 | + Geometry geometry = wkbReader.read(ByteBuffers.toByteArray(geogWkb)); |
| 137 | + assertThat(geometry).isInstanceOf(Point.class); |
| 138 | + numRecords++; |
| 139 | + } |
| 140 | + assertThat(numRecords).as("Record count must match").isEqualTo(testData.size()); |
| 141 | + } |
| 142 | + } |
| 143 | + } |
| 144 | +} |
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