| /* |
| * 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.hudi.bootstrap; |
| |
| import org.apache.hudi.AvroConversionUtils; |
| import org.apache.hudi.DataSourceUtils; |
| import org.apache.hudi.avro.HoodieAvroUtils; |
| import org.apache.hudi.avro.model.HoodieFileStatus; |
| import org.apache.hudi.client.bootstrap.FullRecordBootstrapDataProvider; |
| import org.apache.hudi.client.common.HoodieSparkEngineContext; |
| import org.apache.hudi.common.bootstrap.FileStatusUtils; |
| import org.apache.hudi.common.config.TypedProperties; |
| import org.apache.hudi.common.model.HoodieRecord; |
| import org.apache.hudi.common.util.collection.Pair; |
| import org.apache.hudi.exception.HoodieIOException; |
| import org.apache.hudi.keygen.KeyGenerator; |
| |
| import org.apache.avro.generic.GenericRecord; |
| import org.apache.spark.api.java.JavaRDD; |
| import org.apache.spark.rdd.RDD; |
| import org.apache.spark.sql.Dataset; |
| import org.apache.spark.sql.SparkSession; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** |
| * Spark Data frame based bootstrap input provider. |
| */ |
| public class SparkParquetBootstrapDataProvider extends FullRecordBootstrapDataProvider<JavaRDD<HoodieRecord>> { |
| |
| private final transient SparkSession sparkSession; |
| |
| public SparkParquetBootstrapDataProvider(TypedProperties props, |
| HoodieSparkEngineContext context) { |
| super(props, context); |
| this.sparkSession = SparkSession.builder().config(context.getJavaSparkContext().getConf()).getOrCreate(); |
| } |
| |
| @Override |
| public JavaRDD<HoodieRecord> generateInputRecords(String tableName, String sourceBasePath, |
| List<Pair<String, List<HoodieFileStatus>>> partitionPathsWithFiles) { |
| String[] filePaths = partitionPathsWithFiles.stream().map(Pair::getValue) |
| .flatMap(f -> f.stream().map(fs -> FileStatusUtils.toPath(fs.getPath()).toString())) |
| .toArray(String[]::new); |
| |
| Dataset inputDataset = sparkSession.read().parquet(filePaths); |
| try { |
| KeyGenerator keyGenerator = DataSourceUtils.createKeyGenerator(props); |
| String structName = tableName + "_record"; |
| String namespace = "hoodie." + tableName; |
| RDD<GenericRecord> genericRecords = AvroConversionUtils.createRdd(inputDataset, structName, namespace); |
| return genericRecords.toJavaRDD().map(gr -> { |
| String orderingVal = HoodieAvroUtils.getNestedFieldValAsString( |
| gr, props.getString("hoodie.datasource.write.precombine.field"), false); |
| try { |
| return DataSourceUtils.createHoodieRecord(gr, orderingVal, keyGenerator.getKey(gr), |
| props.getString("hoodie.datasource.write.payload.class")); |
| } catch (IOException ioe) { |
| throw new HoodieIOException(ioe.getMessage(), ioe); |
| } |
| }); |
| } catch (IOException ioe) { |
| throw new HoodieIOException(ioe.getMessage(), ioe); |
| } |
| } |
| } |