vikramahuja1001 commented on a change in pull request #3873: URL: https://github.com/apache/carbondata/pull/3873#discussion_r476220269
########## File path: integration/spark/src/main/scala/org/apache/spark/sql/execution/command/index/IndexRepairCommand.scala ########## @@ -0,0 +1,127 @@ +/* + * 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.spark.sql.execution.command.index + +import java.util + +import scala.collection.JavaConverters._ + +import org.apache.spark.sql.{CarbonEnv, Row, SparkSession} +import org.apache.spark.sql.catalyst.TableIdentifier +import org.apache.spark.sql.execution.command.DataCommand +import org.apache.spark.sql.hive.CarbonRelation +import org.apache.spark.sql.index.CarbonIndexUtil + +import org.apache.carbondata.common.logging.LogServiceFactory +import org.apache.carbondata.core.metadata.index.IndexType +import org.apache.carbondata.core.statusmanager.{LoadMetadataDetails, SegmentStatusManager} +import org.apache.carbondata.core.util.path.CarbonTablePath +import org.apache.carbondata.processing.loading.model.{CarbonDataLoadSchema, CarbonLoadModel} + +/** + * Show indexes on the table + */ +case class IndexRepairCommand(indexname: Option[String], tableNameOp: TableIdentifier, + dbName: String, + segments: Option[List[String]]) extends DataCommand{ + + private val LOGGER = LogServiceFactory.getLogService(this.getClass.getName) + + def processData(sparkSession: SparkSession): Seq[Row] = { + if (dbName == null) { + // table level and index level + val databaseName = if (tableNameOp.database.isEmpty) { + SparkSession.getActiveSession.get.catalog.currentDatabase + } else { + tableNameOp.database.get.toString + } + triggerRepair(tableNameOp.table, databaseName, indexname.isEmpty, indexname, segments) + } else { + // for all tables in the db + sparkSession.sessionState.catalog.listTables(dbName).foreach { + tableIdent => + triggerRepair(tableIdent.table, dbName, indexname.isEmpty, indexname, segments) + } + } + Seq.empty + } + + def triggerRepair(tableNameOp: String, databaseName: String, allIndex: Boolean, + indexName: Option[String], segments: Option[List[String]]): Unit = { + val sparkSession = SparkSession.getActiveSession.get + // when Si creation and load to main table are parallel, get the carbonTable from the + // metastore which will have the latest index Info + val metaStore = CarbonEnv.getInstance(sparkSession).carbonMetaStore + val carbonTable = metaStore + .lookupRelation(Some(databaseName), tableNameOp)(sparkSession) + .asInstanceOf[CarbonRelation].carbonTable + + val carbonLoadModel = new CarbonLoadModel + carbonLoadModel.setDatabaseName(databaseName) + carbonLoadModel.setTableName(tableNameOp) + carbonLoadModel.setTablePath(carbonTable.getTablePath) + val tableStatusFilePath = CarbonTablePath.getTableStatusFilePath(carbonTable.getTablePath) + carbonLoadModel.setLoadMetadataDetails(SegmentStatusManager + .readTableStatusFile(tableStatusFilePath).toList.asJava) + carbonLoadModel.setCarbonDataLoadSchema(new CarbonDataLoadSchema(carbonTable)) + + val indexMetadata = carbonTable.getIndexMetadata + val secondaryIndexProvider = IndexType.SI.getIndexProviderName + if (null != indexMetadata && null != indexMetadata.getIndexesMap && + null != indexMetadata.getIndexesMap.get(secondaryIndexProvider)) { + val indexTables = indexMetadata.getIndexesMap + .get(secondaryIndexProvider).keySet().asScala + // if there are no index tables for a given fact table do not perform any action + if (indexTables.nonEmpty) { + val mainTableDetails = if (segments.isEmpty) { Review comment: intelliJ prompts to use isEmpty ---------------------------------------------------------------- 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: us...@infra.apache.org
