FANNG1 commented on code in PR #7067: URL: https://github.com/apache/gravitino/pull/7067#discussion_r2086840710
########## spark-connector/spark-common/src/main/java/org/apache/gravitino/spark/connector/utils/HiveGravitinoOperationOperator.java: ########## @@ -0,0 +1,157 @@ +/* + * 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.gravitino.spark.connector.utils; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import org.apache.gravitino.exceptions.NoSuchPartitionException; +import org.apache.gravitino.rel.expressions.literals.Literal; +import org.apache.gravitino.rel.partitions.Partition; +import org.apache.gravitino.rel.partitions.Partitions; +import org.apache.spark.sql.catalyst.InternalRow; +import org.apache.spark.sql.catalyst.analysis.PartitionAlreadyExistsException; +import org.apache.spark.sql.catalyst.expressions.GenericInternalRow; +import org.apache.spark.sql.types.DataType; +import org.apache.spark.sql.types.StructField; +import org.apache.spark.sql.types.StructType; +import org.jetbrains.annotations.NotNull; + +public class HiveGravitinoOperationOperator { + + private org.apache.gravitino.rel.Table gravitinoTable; + private static final String PARTITION_NAME_DELIMITER = "/"; + private static final String PARTITION_VALUE_DELIMITER = "="; + + public HiveGravitinoOperationOperator(org.apache.gravitino.rel.Table gravitinoTable) { + this.gravitinoTable = gravitinoTable; + } + + public void createPartition( + InternalRow ident, Map<String, String> properties, StructType partitionSchema) + throws PartitionAlreadyExistsException { + List<String[]> fields = new ArrayList<>(); + List<Literal<?>> values = new ArrayList<>(); + + int numFields = ident.numFields(); + for (int i = 0; i < numFields; i++) { + StructField structField = partitionSchema.apply(i); + DataType dataType = structField.dataType(); + fields.add(new String[] {structField.name()}); + values.add(SparkPartitionUtils.toGravitinoLiteral(ident, i, dataType)); + } + + Partition partition = + Partitions.identity( + null, fields.toArray(new String[0][0]), values.toArray(new Literal[0]), properties); + + try { + gravitinoTable.supportPartitions().addPartition(partition); + } catch (org.apache.gravitino.exceptions.PartitionAlreadyExistsException e) { + throw new org.apache.spark.sql.catalyst.analysis.PartitionAlreadyExistsException( + e.getMessage()); + } + } + + public boolean dropPartition(InternalRow ident, StructType partitionSchema) { + String partitionName = getHivePartitionName(ident, partitionSchema); + return gravitinoTable.supportPartitions().dropPartition(partitionName); + } + + public InternalRow[] listPartitionIdentifiers( + String[] names, InternalRow ident, StructType partitionSchema) { + // Get all partitions + String[] allPartitions = gravitinoTable.supportPartitions().listPartitionNames(); + + boolean isNeedAll = names != null && names.length == 0 ? true : false; + String partitionName = getHivePartitionName(names, ident, partitionSchema); + return Arrays.stream(allPartitions) + .filter(e -> isNeedAll ? true : e.contains(partitionName)) + .map(e -> toSparkPartition(e, partitionSchema)) + .toArray(GenericInternalRow[]::new); + } + + private InternalRow toSparkPartition(String partitionName, StructType partitionSchema) { + String[] splits = partitionName.split(PARTITION_NAME_DELIMITER); + Object[] values = new Object[splits.length]; + for (int i = 0; i < splits.length; i++) { + values[i] = + SparkPartitionUtils.getSparkPartitionValue( + splits[i].split(PARTITION_VALUE_DELIMITER)[1], partitionSchema.apply(i).dataType()); + } + return new GenericInternalRow(values); + } + + private @NotNull String getHivePartitionName( + String[] names, InternalRow ident, StructType partitionSchema) { + StringBuilder partitionName = new StringBuilder(); + for (int i = 0; i < names.length; i++) { + StructField structField = partitionSchema.apply(i); + DataType dataType = structField.dataType(); + partitionName.append( + names[i] + + PARTITION_VALUE_DELIMITER + + SparkPartitionUtils.getPartitionValueAsString(ident, i, dataType)); + if (i < names.length - 1) { + partitionName.append(PARTITION_NAME_DELIMITER); + } + } + return partitionName.toString(); + } + + private @NotNull String getHivePartitionName(InternalRow ident, StructType partitionSchema) { + StringBuilder partitionName = new StringBuilder(); + int numFields = ident.numFields(); + for (int i = 0; i < numFields; i++) { + StructField structField = partitionSchema.apply(i); + DataType dataType = structField.dataType(); + partitionName.append( + structField.name() + + PARTITION_VALUE_DELIMITER + + SparkPartitionUtils.getPartitionValueAsString(ident, i, dataType)); + if (i < numFields - 1) { + partitionName.append(PARTITION_NAME_DELIMITER); + } + } + return partitionName.toString(); + } + + public Map<String, String> loadPartitionMetadata(InternalRow ident, StructType partitionSchema) { Review Comment: suggest to move `public` methods infront of `private` methods -- This is an automated message from the Apache Git Service. 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