| /* |
| * 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.drill.exec.planner.sql.handlers; |
| |
| import org.apache.calcite.sql.SqlNode; |
| import org.apache.drill.common.exceptions.UserException; |
| import org.apache.drill.exec.ExecConstants; |
| import org.apache.drill.exec.physical.PhysicalPlan; |
| import org.apache.drill.exec.planner.sql.DirectPlan; |
| import org.apache.drill.exec.planner.sql.SchemaUtilites; |
| import org.apache.drill.exec.planner.sql.parser.SqlDropTableMetadata; |
| import org.apache.drill.exec.store.AbstractSchema; |
| import org.apache.drill.exec.util.Pointer; |
| import org.apache.drill.exec.work.foreman.ForemanSetupException; |
| import org.apache.drill.metastore.components.tables.MetastoreTableInfo; |
| import org.apache.drill.metastore.components.tables.Tables; |
| import org.apache.drill.metastore.exceptions.MetastoreException; |
| import org.apache.drill.metastore.metadata.TableInfo; |
| import org.apache.parquet.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.List; |
| |
| public class MetastoreDropTableMetadataHandler extends DefaultSqlHandler { |
| private static final Logger logger = LoggerFactory.getLogger(MetastoreDropTableMetadataHandler.class); |
| |
| public MetastoreDropTableMetadataHandler(SqlHandlerConfig config, Pointer<String> textPlan) { |
| super(config, textPlan); |
| } |
| |
| @Override |
| public PhysicalPlan getPlan(SqlNode sqlNode) throws ForemanSetupException { |
| if (!context.getOptions().getOption(ExecConstants.METASTORE_ENABLED_VALIDATOR)) { |
| throw UserException.validationError() |
| .message("Running ANALYZE TABLE DROP command when Metastore is disabled (`metastore.enabled` is set to false)") |
| .build(logger); |
| } |
| |
| SqlDropTableMetadata dropTableMetadata = unwrap(sqlNode, SqlDropTableMetadata.class); |
| |
| AbstractSchema drillSchema = SchemaUtilites.resolveToDrillSchema( |
| config.getConverter().getDefaultSchema(), dropTableMetadata.getSchemaPath()); |
| |
| List<String> schemaPath = drillSchema.getSchemaPath(); |
| String pluginName = schemaPath.get(0); |
| String workspaceName = Strings.join(schemaPath.subList(1, schemaPath.size()), AbstractSchema.SCHEMA_SEPARATOR); |
| |
| TableInfo tableInfo = TableInfo.builder() |
| .name(dropTableMetadata.getName()) |
| .storagePlugin(pluginName) |
| .workspace(workspaceName) |
| .build(); |
| |
| try { |
| Tables tables = context.getMetastoreRegistry().get().tables(); |
| |
| MetastoreTableInfo metastoreTableInfo = tables.basicRequests() |
| .metastoreTableInfo(tableInfo); |
| |
| if (!metastoreTableInfo.isExists()) { |
| if (dropTableMetadata.checkMetadataExistence()) { |
| throw UserException.validationError() |
| .message("Metadata for table [%s] not found.", dropTableMetadata.getName()) |
| .build(logger); |
| } |
| return DirectPlan.createDirectPlan(context, false, |
| String.format("Metadata for table [%s] does not exist.", dropTableMetadata.getName())); |
| } |
| |
| tables.modify() |
| .delete(tableInfo.toFilter()) |
| .execute(); |
| } catch (MetastoreException e) { |
| logger.error("Error when dropping metadata for table {}", dropTableMetadata.getName(), e); |
| return DirectPlan.createDirectPlan(context, false, e.getMessage()); |
| } |
| |
| return DirectPlan.createDirectPlan(context, true, |
| String.format("Metadata for table [%s] dropped.", dropTableMetadata.getName())); |
| } |
| } |