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Data generator reorganisation (apache#12122)
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...ler/src/main/java/org/apache/pinot/controller/recommender/data/DataGenerationHelpers.java
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| /** | ||
| * 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. | ||
| */ | ||
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|
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| package org.apache.pinot.controller.recommender.data; | ||
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| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.concurrent.TimeUnit; | ||
| import org.apache.commons.io.FileUtils; | ||
| import org.apache.commons.lang.math.IntRange; | ||
| import org.apache.pinot.controller.recommender.data.generator.DataGenerator; | ||
| import org.apache.pinot.controller.recommender.data.generator.DataGeneratorSpec; | ||
| import org.apache.pinot.controller.recommender.data.writer.AvroWriter; | ||
| import org.apache.pinot.controller.recommender.data.writer.AvroWriterSpec; | ||
| import org.apache.pinot.controller.recommender.data.writer.CsvWriter; | ||
| import org.apache.pinot.controller.recommender.data.writer.FileWriterSpec; | ||
| import org.apache.pinot.controller.recommender.data.writer.JsonWriter; | ||
| import org.apache.pinot.spi.data.FieldSpec; | ||
| import org.apache.pinot.spi.data.Schema; | ||
| import org.apache.pinot.spi.data.TimeFieldSpec; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| public final class DataGenerationHelpers { | ||
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|
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| private DataGenerationHelpers() { | ||
| } | ||
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| private static final Logger LOGGER = LoggerFactory.getLogger(DataGenerationHelpers.class); | ||
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| public static void generateAvro(DataGenerator generator, long totalDocs, int numFiles, String outDir, | ||
| boolean isOverrideOutDir) throws Exception { | ||
| AvroWriter avroWriter = new AvroWriter(); | ||
| avroWriter.init(new AvroWriterSpec(generator, handleOutDir(outDir, isOverrideOutDir), totalDocs, numFiles)); | ||
| avroWriter.write(); | ||
| } | ||
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| public static void generateCsv(DataGenerator generator, long totalDocs, int numFiles, String outDir, | ||
| boolean isOverrideOutDir) throws Exception { | ||
| CsvWriter csvWriter = new CsvWriter(); | ||
| csvWriter.init(new FileWriterSpec(generator, handleOutDir(outDir, isOverrideOutDir), totalDocs, numFiles)); | ||
| csvWriter.write(); | ||
| } | ||
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| public static void generateJson(DataGenerator generator, long totalDocs, int numFiles, String outDir, | ||
| boolean isOverrideOutDir) throws Exception { | ||
| JsonWriter jsonWriter = new JsonWriter(); | ||
| jsonWriter.init(new FileWriterSpec(generator, handleOutDir(outDir, isOverrideOutDir), totalDocs, numFiles)); | ||
| jsonWriter.write(); | ||
| } | ||
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| private static File handleOutDir(String outDir, boolean isOverrideOutDir) | ||
| throws IOException { | ||
| File dir = new File(outDir); | ||
| if (dir.exists() && !isOverrideOutDir) { | ||
| LOGGER.error("output directory already exists, and override is set to false"); | ||
| throw new RuntimeException("output directory exists"); | ||
| } | ||
| if (dir.exists()) { | ||
| FileUtils.deleteDirectory(dir); | ||
| } | ||
| dir.mkdir(); | ||
| return dir; | ||
| } | ||
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| public static DataGeneratorSpec buildDataGeneratorSpec(Schema schema, List<String> columns, | ||
| HashMap<String, FieldSpec.DataType> dataTypes, HashMap<String, FieldSpec.FieldType> fieldTypes, | ||
| HashMap<String, TimeUnit> timeUnits, HashMap<String, Integer> cardinality, HashMap<String, IntRange> range, | ||
| HashMap<String, Map<String, Object>> pattern, Map<String, Double> mvCountMap, Map<String, Integer> lengthMap) { | ||
| for (final FieldSpec fs : schema.getAllFieldSpecs()) { | ||
| String col = fs.getName(); | ||
| columns.add(col); | ||
| dataTypes.put(col, fs.getDataType()); | ||
| fieldTypes.put(col, fs.getFieldType()); | ||
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| switch (fs.getFieldType()) { | ||
| case DIMENSION: | ||
| cardinality.putIfAbsent(col, 1000); | ||
| break; | ||
| case METRIC: | ||
| range.putIfAbsent(col, new IntRange(1, 1000)); | ||
| break; | ||
| case TIME: | ||
| range.putIfAbsent(col, new IntRange(1, 1000)); | ||
| TimeFieldSpec tfs = (TimeFieldSpec) fs; | ||
| timeUnits.put(col, tfs.getIncomingGranularitySpec().getTimeType()); | ||
| break; | ||
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| // forward compatibility with pattern generator | ||
| case DATE_TIME: | ||
| case COMPLEX: | ||
| break; | ||
| default: | ||
| throw new RuntimeException("Invalid field type."); | ||
| } | ||
| } | ||
| return new DataGeneratorSpec(columns, cardinality, range, pattern, mvCountMap, lengthMap, dataTypes, fieldTypes, | ||
| timeUnits); | ||
| } | ||
| } |
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