aokolnychyi commented on a change in pull request #2210: URL: https://github.com/apache/iceberg/pull/2210#discussion_r580600832
########## File path: spark3/src/main/java/org/apache/iceberg/spark/procedures/AddFilesProcedure.java ########## @@ -0,0 +1,232 @@ +/* + * 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.iceberg.spark.procedures; + +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.FileSystem; +import org.apache.hadoop.fs.Path; +import org.apache.iceberg.AppendFiles; +import org.apache.iceberg.DataFile; +import org.apache.iceberg.MetricsConfig; +import org.apache.iceberg.PartitionField; +import org.apache.iceberg.PartitionSpec; +import org.apache.iceberg.Snapshot; +import org.apache.iceberg.SnapshotSummary; +import org.apache.iceberg.Table; +import org.apache.iceberg.TableProperties; +import org.apache.iceberg.mapping.MappingUtil; +import org.apache.iceberg.mapping.NameMapping; +import org.apache.iceberg.mapping.NameMappingParser; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.spark.Spark3Util; +import org.apache.iceberg.spark.SparkTableUtil; +import org.apache.spark.sql.catalyst.InternalRow; +import org.apache.spark.sql.connector.catalog.Identifier; +import org.apache.spark.sql.connector.catalog.TableCatalog; +import org.apache.spark.sql.connector.iceberg.catalog.ProcedureParameter; +import org.apache.spark.sql.types.DataTypes; +import org.apache.spark.sql.types.Metadata; +import org.apache.spark.sql.types.StructField; +import org.apache.spark.sql.types.StructType; +import scala.runtime.BoxedUnit; + +public class AddFilesProcedure extends BaseProcedure { + + private static final ProcedureParameter[] PARAMETERS = new ProcedureParameter[]{ + ProcedureParameter.required("table", DataTypes.StringType), + ProcedureParameter.required("path", DataTypes.StringType), + ProcedureParameter.required("format", DataTypes.StringType), + ProcedureParameter.optional("partition_value", STRING_MAP) + }; + + private static final StructType OUTPUT_TYPE = new StructType(new StructField[]{ + new StructField("added_files_count", DataTypes.LongType, false, Metadata.empty()) + }); + + private AddFilesProcedure(TableCatalog tableCatalog) { + super(tableCatalog); + } + + public static SparkProcedures.ProcedureBuilder builder() { + return new BaseProcedure.Builder<AddFilesProcedure>() { + @Override + protected AddFilesProcedure doBuild() { + return new AddFilesProcedure(tableCatalog()); + } + }; + } + + + @Override + public ProcedureParameter[] parameters() { + return PARAMETERS; + } + + @Override + public StructType outputType() { + return OUTPUT_TYPE; + } + + @Override + public InternalRow[] call(InternalRow args) { + Identifier tableIdent = toIdentifier(args.getString(0), PARAMETERS[0].name()); + String path = args.getString(1); + String format = args.getString(2); + + Map<String, String> partitionSpec = Maps.newHashMap(); + if (!args.isNullAt(3)) { + args.getMap(3).foreach(DataTypes.StringType, DataTypes.StringType, + (k, v) -> { + partitionSpec.put(k.toString(), v.toString()); + return BoxedUnit.UNIT; + }); + } + + Long filesAdded = importDataToIcebergTable(tableIdent, path, format, partitionSpec); + + return new InternalRow[]{newInternalRow(filesAdded)}; + } + + private Long importDataToIcebergTable(Identifier tableIdent, String path, String format, + Map<String, String> partition) { + return modifyIcebergTable(tableIdent, table -> { + Configuration conf = spark().sessionState().newHadoopConf(); + Path dataPath = new Path(path); + FileSystem fs; + Boolean isFile; + + try { + fs = dataPath.getFileSystem(conf); + isFile = fs.getFileStatus(dataPath).isFile(); + } catch (IOException e) { + throw new RuntimeException("Unable to access add_file path", e); + } + validatePartitionSpec(table, dataPath, fs, partition); + + if (table.properties().get(TableProperties.DEFAULT_NAME_MAPPING) == null) { + // Forces Name based resolution instead of position based resolution + NameMapping mapping = MappingUtil.create(table.schema()); + String mappingJson = NameMappingParser.toJson(mapping); + table.updateProperties() + .set(TableProperties.DEFAULT_NAME_MAPPING, mappingJson) + .commit(); + } + + if (isFile || !partition.isEmpty()) { + // we do a list operation on the driver to import 1 file or 1 partition + PartitionSpec spec = table.spec(); + MetricsConfig metricsConfig = MetricsConfig.fromProperties(table.properties()); + String partitionURI; + + if (isFile) { + partitionURI = dataPath.toString(); + } else { + partitionURI = dataPath.toString() + toPartitionPath(partition); + } + + List<DataFile> files = SparkTableUtil.listPartition(partition, partitionURI, format, spec, conf, metricsConfig); + if (files.size() == 0) { + throw new IllegalArgumentException(String.format("No files found for add_file command. Looking in URI %s", + partitionURI)); + } + + AppendFiles append = table.newAppend(); + files.forEach(append::appendFile); + append.commit(); + } else { + // Importing multiple partitions + List<SparkTableUtil.SparkPartition> partitions = Spark3Util.getPartitions(spark(), dataPath, format); + String stagingLocation = table.properties() + .getOrDefault(TableProperties.WRITE_METADATA_LOCATION, table.location() + "/metadata"); + SparkTableUtil.importSparkPartitions(spark(), partitions, table, table.spec(), stagingLocation); + } + + Snapshot snapshot = table.currentSnapshot(); + Long numAddedFiles = Long.parseLong(snapshot.summary().get(SnapshotSummary.ADDED_FILES_PROP)); + return numAddedFiles; + }); + } + + @Override + public String description() { + return null; + } + + private String toPartitionPath(Map<String, String> partition) { Review comment: One way to handle this is described in [this](https://github.com/apache/iceberg/pull/2210#discussion_r580599502) comment. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
