DanielWang2035 commented on code in PR #13706: URL: https://github.com/apache/iotdb/pull/13706#discussion_r1799519447
########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/analyze/load/LoadTsFileToTableModelAnalyzer.java: ########## @@ -0,0 +1,241 @@ +/* + * 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.iotdb.db.queryengine.plan.analyze.load; + +import org.apache.iotdb.commons.auth.AuthException; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.confignode.rpc.thrift.TDatabaseSchema; +import org.apache.iotdb.db.exception.LoadEmptyFileException; +import org.apache.iotdb.db.exception.LoadReadOnlyException; +import org.apache.iotdb.db.exception.VerifyMetadataException; +import org.apache.iotdb.db.exception.sql.SemanticException; +import org.apache.iotdb.db.queryengine.common.MPPQueryContext; +import org.apache.iotdb.db.queryengine.plan.analyze.IAnalysis; +import org.apache.iotdb.db.queryengine.plan.execution.config.ConfigTaskResult; +import org.apache.iotdb.db.queryengine.plan.execution.config.executor.ClusterConfigTaskExecutor; +import org.apache.iotdb.db.queryengine.plan.execution.config.metadata.relational.CreateDBTask; +import org.apache.iotdb.db.queryengine.plan.relational.metadata.ITableDeviceSchemaValidation; +import org.apache.iotdb.db.queryengine.plan.relational.metadata.Metadata; +import org.apache.iotdb.db.queryengine.plan.relational.sql.ast.LoadTsFile; +import org.apache.iotdb.db.queryengine.plan.statement.crud.LoadTsFileStatement; +import org.apache.iotdb.db.storageengine.dataregion.tsfile.TsFileResource; +import org.apache.iotdb.db.storageengine.dataregion.tsfile.TsFileResourceStatus; +import org.apache.iotdb.db.storageengine.dataregion.utils.TsFileResourceUtils; +import org.apache.iotdb.db.utils.TimestampPrecisionUtils; +import org.apache.iotdb.rpc.RpcUtils; +import org.apache.iotdb.rpc.TSStatusCode; + +import com.google.common.util.concurrent.ListenableFuture; +import org.apache.commons.io.FileUtils; +import org.apache.tsfile.file.metadata.IDeviceID; +import org.apache.tsfile.file.metadata.TableSchema; +import org.apache.tsfile.file.metadata.TimeseriesMetadata; +import org.apache.tsfile.read.TsFileSequenceReader; +import org.apache.tsfile.read.TsFileSequenceReaderTimeseriesMetadataIterator; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.File; +import java.io.IOException; +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.concurrent.ExecutionException; + +import static org.apache.iotdb.db.queryengine.plan.execution.config.TableConfigTaskVisitor.validateDatabaseName; +import static org.apache.iotdb.db.utils.constant.SqlConstant.ROOT; +import static org.apache.tsfile.common.constant.TsFileConstant.PATH_SEPARATOR_CHAR; + +public class LoadTsFileToTableModelAnalyzer extends LoadTsFileAnalyzer { + private static final Logger LOGGER = + LoggerFactory.getLogger(LoadTsFileToTableModelAnalyzer.class); + + private final Metadata metadata; + + public LoadTsFileToTableModelAnalyzer( + LoadTsFileStatement loadTsFileStatement, Metadata metadata, MPPQueryContext context) { + super(loadTsFileStatement, context); + this.metadata = metadata; + } + + public LoadTsFileToTableModelAnalyzer( + LoadTsFile loadTsFileTableStatement, Metadata metadata, MPPQueryContext context) { + super(loadTsFileTableStatement, context); + this.metadata = metadata; + } + + @Override + public IAnalysis analyzeFileByFile(IAnalysis analysis) { + // check if the system is read only + if (CommonDescriptor.getInstance().getConfig().isReadOnly()) { + analysis.setFinishQueryAfterAnalyze(true); + analysis.setFailStatus( + RpcUtils.getStatus(TSStatusCode.SYSTEM_READ_ONLY, LoadReadOnlyException.MESSAGE)); + return analysis; + } + + try { + autoCreateDatabase(database); + } catch (VerifyMetadataException e) { + LOGGER.warn("Auto create database failed: {}", database, e); + analysis.setFinishQueryAfterAnalyze(true); + analysis.setFailStatus(RpcUtils.getStatus(TSStatusCode.LOAD_FILE_ERROR, e.getMessage())); + return analysis; + } + + if (!doAnalyzeFileByFile(analysis)) { + // return false means the analysis is failed because of exception + return analysis; + } + + LOGGER.info("Load - Analysis Stage: all tsfiles have been analyzed."); + + // data partition will be queried in the scheduler + setRealStatement(analysis); + return analysis; + } + + @Override + protected void analyzeSingleTsFile(final File tsFile) throws IOException, AuthException { + try (final TsFileSequenceReader reader = new TsFileSequenceReader(tsFile.getAbsolutePath())) { + // can be reused when constructing tsfile resource + final TsFileSequenceReaderTimeseriesMetadataIterator timeseriesMetadataIterator = + new TsFileSequenceReaderTimeseriesMetadataIterator(reader, true, 1); + + // check if the tsfile is empty + if (!timeseriesMetadataIterator.hasNext()) { + throw new LoadEmptyFileException(tsFile.getAbsolutePath()); + } + + // check whether the tsfile is table-model or not + if (Objects.isNull(reader.readFileMetadata().getTableSchemaMap()) + || reader.readFileMetadata().getTableSchemaMap().size() == 0) { + throw new SemanticException("Attempted to load a tree-model TsFile into table-model."); + } + + // construct tsfile resource + final TsFileResource tsFileResource = constructTsFileResource(reader, tsFile); + + for (Map.Entry<String, TableSchema> name2Schema : + reader.readFileMetadata().getTableSchemaMap().entrySet()) { + org.apache.iotdb.db.queryengine.plan.relational.metadata.TableSchema realSchema = + metadata + .validateTableHeaderSchema( + database, + org.apache.iotdb.db.queryengine.plan.relational.metadata.TableSchema + .fromTsFileTableSchema(name2Schema.getKey(), name2Schema.getValue()), + context, + true) + .orElse(null); + if (Objects.isNull(realSchema)) { + LOGGER.warn("Failed to validata schema for table {}", name2Schema.getValue()); + } + } + + long writePointCount = 0; + + while (timeseriesMetadataIterator.hasNext()) { + final Map<IDeviceID, List<TimeseriesMetadata>> device2TimeseriesMetadata = + timeseriesMetadataIterator.next(); + + for (IDeviceID deviceId : device2TimeseriesMetadata.keySet()) { + final ITableDeviceSchemaValidation tableSchemaValidation = + createTableSchemaValidation(deviceId, this); + // TODO: currently, we only validate one device at a time for table model, + // may need to validate in batched manner in the future. + metadata.validateDeviceSchema(tableSchemaValidation, context); + } + + if (!tsFileResource.resourceFileExists()) { + TsFileResourceUtils.updateTsFileResource(device2TimeseriesMetadata, tsFileResource); + } + + writePointCount += getWritePointCount(device2TimeseriesMetadata); + } + + TimestampPrecisionUtils.checkTimestampPrecision(tsFileResource.getFileEndTime()); + tsFileResource.setStatus(TsFileResourceStatus.NORMAL); + + addTsFileResource(tsFileResource); + addWritePointCount(writePointCount); + } catch (final LoadEmptyFileException loadEmptyFileException) { + LOGGER.warn("Failed to load empty file: {}", tsFile.getAbsolutePath()); + if (isDeleteAfterLoad) { + FileUtils.deleteQuietly(tsFile); + } + } + } + + private void autoCreateDatabase(final String database) throws VerifyMetadataException { + validateDatabaseName(database); + final CreateDBTask task = + new CreateDBTask(new TDatabaseSchema(ROOT + PATH_SEPARATOR_CHAR + database), true); + try { + final ListenableFuture<ConfigTaskResult> future = Review Comment: use cache for duplicated databases -- This is an automated message from the Apache Git Service. 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