mchades commented on code in PR #3961: URL: https://github.com/apache/gravitino/pull/3961#discussion_r1678851325
########## catalogs/catalog-jdbc-doris/src/main/java/com/datastrato/gravitino/catalog/doris/operation/DorisTablePartitionOperations.java: ########## @@ -0,0 +1,341 @@ +/* + * 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 com.datastrato.gravitino.catalog.doris.operation; + +import static com.google.common.base.Preconditions.checkArgument; + +import com.datastrato.gravitino.catalog.doris.utils.DorisUtils; +import com.datastrato.gravitino.catalog.jdbc.converter.JdbcExceptionConverter; +import com.datastrato.gravitino.catalog.jdbc.converter.JdbcTypeConverter; +import com.datastrato.gravitino.catalog.jdbc.operation.JdbcTablePartitionOperations; +import com.datastrato.gravitino.exceptions.GravitinoRuntimeException; +import com.datastrato.gravitino.exceptions.NoSuchPartitionException; +import com.datastrato.gravitino.exceptions.PartitionAlreadyExistsException; +import com.datastrato.gravitino.rel.expressions.literals.Literal; +import com.datastrato.gravitino.rel.expressions.literals.Literals; +import com.datastrato.gravitino.rel.expressions.transforms.Transform; +import com.datastrato.gravitino.rel.expressions.transforms.Transforms; +import com.datastrato.gravitino.rel.partitions.ListPartition; +import com.datastrato.gravitino.rel.partitions.Partition; +import com.datastrato.gravitino.rel.partitions.Partitions; +import com.datastrato.gravitino.rel.partitions.RangePartition; +import com.datastrato.gravitino.rel.types.Type; +import com.google.common.base.Preconditions; +import com.google.common.collect.ImmutableList; +import com.google.common.collect.ImmutableMap; +import java.sql.Connection; +import java.sql.DatabaseMetaData; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.sql.Statement; +import java.util.Arrays; +import java.util.Collections; +import java.util.Map; +import java.util.Objects; +import java.util.Optional; +import java.util.regex.Matcher; +import java.util.regex.Pattern; +import java.util.stream.Collectors; +import javax.sql.DataSource; + +public final class DorisTablePartitionOperations extends JdbcTablePartitionOperations { + private static final String PARTITION_TYPE_VALUE_PATTERN_STRING = + "types: \\[([^\\]]+)\\]; keys: \\[([^\\]]+)\\];"; + private static final Pattern PARTITION_TYPE_VALUE_PATTERN = + Pattern.compile(PARTITION_TYPE_VALUE_PATTERN_STRING); + + private final JdbcExceptionConverter exceptionConverter; + private final JdbcTypeConverter typeConverter; + + public DorisTablePartitionOperations( + DataSource dataSource, + String databaseName, + String tableName, + JdbcExceptionConverter exceptionConverter, + JdbcTypeConverter typeConverter) { + super(dataSource, databaseName, tableName); + checkArgument(exceptionConverter != null, "exceptionConverter is null"); + checkArgument(typeConverter != null, "typeConverter is null"); + this.exceptionConverter = exceptionConverter; + this.typeConverter = typeConverter; + } + + @Override + public String[] listPartitionNames() { + try (Connection connection = getConnection(databaseName)) { + String showPartitionsSql = String.format("SHOW PARTITIONS FROM `%s`", tableName); + try (Statement statement = connection.createStatement(); + ResultSet result = statement.executeQuery(showPartitionsSql)) { + ImmutableList.Builder<String> partitionNames = ImmutableList.builder(); + while (result.next()) { + partitionNames.add(result.getString("PartitionName")); + } + return partitionNames.build().stream().toArray(String[]::new); + } + } catch (SQLException e) { + throw exceptionConverter.toGravitinoException(e); + } + } + + @Override + public Partition[] listPartitions() { + try (Connection connection = getConnection(databaseName)) { + Transform partitionInfo = getPartitionInfo(connection); + Map<String, Type> columnTypes = getColumnType(connection); + String showPartitionsSql = String.format("SHOW PARTITIONS FROM `%s`", tableName); + try (Statement statement = connection.createStatement(); + ResultSet result = statement.executeQuery(showPartitionsSql)) { + ImmutableList.Builder<Partition> partitions = ImmutableList.builder(); + while (result.next()) { + partitions.add(fromDorisPartition(result, partitionInfo, columnTypes)); + } + return partitions.build().stream().toArray(Partition[]::new); + } + } catch (SQLException e) { + throw exceptionConverter.toGravitinoException(e); + } + } + + @Override + public Partition getPartition(String partitionName) throws NoSuchPartitionException { + try (Connection connection = getConnection(databaseName)) { + Transform partitionInfo = getPartitionInfo(connection); + Map<String, Type> columnTypes = getColumnType(connection); + String showPartitionsSql = + String.format( + "SHOW PARTITIONS FROM `%s` WHERE PartitionName = \"%s\"", tableName, partitionName); + try (Statement statement = connection.createStatement(); + ResultSet result = statement.executeQuery(showPartitionsSql)) { + while (result.next()) { + return fromDorisPartition(result, partitionInfo, columnTypes); + } + } + } catch (SQLException e) { + throw exceptionConverter.toGravitinoException(e); + } + throw new NoSuchPartitionException("Partition %s does not exist", partitionName); + } + + @Override + public Partition addPartition(Partition partition) throws PartitionAlreadyExistsException { + try (Connection connection = getConnection(databaseName)) { + Transform partitionInfo = getPartitionInfo(connection); Review Comment: Can we save the table object when `createJdbcTablePartitionOperations`? so that we don't need to call `getPartitionInfo` again in partition operations -- This is an automated message from the Apache Git Service. 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