davidzollo commented on code in PR #9872: URL: https://github.com/apache/seatunnel/pull/9872#discussion_r2361909192
########## seatunnel-connectors-v2/connector-iotdb-v2/src/main/java/org/apache/seatunnel/connectors/seatunnel/iotdb/sink/relational/IoTDBRelationalSinkClient.java: ########## @@ -0,0 +1,293 @@ +/* + * 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.seatunnel.connectors.seatunnel.iotdb.sink.relational; + +import org.apache.seatunnel.common.exception.CommonErrorCode; +import org.apache.seatunnel.common.exception.CommonErrorCodeDeprecated; +import org.apache.seatunnel.connectors.seatunnel.iotdb.config.SinkConfig; +import org.apache.seatunnel.connectors.seatunnel.iotdb.exception.IotdbConnectorErrorCode; +import org.apache.seatunnel.connectors.seatunnel.iotdb.exception.IotdbConnectorException; +import org.apache.seatunnel.connectors.seatunnel.iotdb.serialize.relational.IoTDBRelationalRecord; + +import lombok.extern.slf4j.Slf4j; +import shaded.org.apache.iotdb.isession.ITableSession; +import shaded.org.apache.iotdb.rpc.IoTDBConnectionException; +import shaded.org.apache.iotdb.rpc.StatementExecutionException; +import shaded.org.apache.iotdb.session.TableSessionBuilder; +import shaded.org.apache.tsfile.enums.ColumnCategory; +import shaded.org.apache.tsfile.enums.TSDataType; +import shaded.org.apache.tsfile.write.record.Tablet; + +import java.io.IOException; +import java.time.LocalDate; +import java.util.ArrayList; +import java.util.List; + +@Slf4j +public class IoTDBRelationalSinkClient { + + private final SinkConfig sinkConfig; + private final List<Tablet> batchList; + + private ITableSession tableSession; + + private volatile boolean initialize; + private volatile Exception flushException; + private volatile int curBatchSize; + + private final List<String> tableNameList; + private final List<String> columnNames; + private final List<ColumnCategory> columnCategories; + private final List<TSDataType> columnDataTypes; + + public IoTDBRelationalSinkClient( + SinkConfig sinkConfig, + List<String> tagKeys, + List<String> attributeKeys, + List<String> fieldNames, + List<TSDataType> fieldTypes) { + this.sinkConfig = sinkConfig; + this.batchList = new ArrayList<>(); + + int tagSize = tagKeys.size(); + int attributeSize = attributeKeys.size(); + int fieldSize = fieldNames.size(); + this.columnNames = combineColumnNames(tagKeys, attributeKeys, fieldNames); + this.columnCategories = generateColumnCategories(tagSize, attributeSize, fieldSize); + this.columnDataTypes = generateColumnTypes(tagSize, attributeSize, fieldTypes); + this.tableNameList = new ArrayList<>(); + } + + private void tryInit() throws IOException { + if (initialize) { + return; + } + + String database = sinkConfig.getStorageGroup(); + TableSessionBuilder sessionBuilder = + new TableSessionBuilder() + .nodeUrls(sinkConfig.getNodeUrls()) + .username(sinkConfig.getUsername()) + .password(sinkConfig.getPassword()) + .database(database) + .enableCompression(false); + if (sinkConfig.getThriftDefaultBufferSize() != null) { + sessionBuilder.thriftDefaultBufferSize(sinkConfig.getThriftDefaultBufferSize()); + } + if (sinkConfig.getThriftMaxFrameSize() != null) { + sessionBuilder.thriftMaxFrameSize(sinkConfig.getThriftMaxFrameSize()); + } + if (sinkConfig.getZoneId() != null) { + sessionBuilder.zoneId(sinkConfig.getZoneId()); + } + if (sinkConfig.getConnectionTimeoutInMs() != null) { + sessionBuilder.connectionTimeoutInMs(sinkConfig.getConnectionTimeoutInMs()); + } + + try { + tableSession = sessionBuilder.build(); + } catch (IoTDBConnectionException e) { + log.error("Initialize IoTDB client failed.", e); + throw new IotdbConnectorException( + IotdbConnectorErrorCode.INITIALIZE_CLIENT_FAILED, + "Initialize IoTDB client failed.", + e); + } + + try { + tableSession.executeNonQueryStatement("create database if not exists " + database); + } catch (IoTDBConnectionException | StatementExecutionException e) { + log.error("Create database failed.", e); + throw new IotdbConnectorException( + IotdbConnectorErrorCode.INITIALIZE_CLIENT_FAILED, + "Initialize IoTDB client failed.", + e); + } + + initialize = true; + curBatchSize = 0; + } + + public synchronized void write(IoTDBRelationalRecord record) throws IOException { + tryInit(); + checkFlushException(); + + String tableName = record.getTableName(); + Tablet curTablet; + int tabletIndex = tableNameList.indexOf(tableName); + if (tabletIndex == -1) { + tableNameList.add(tableName); + curTablet = new Tablet(tableName, columnNames, columnDataTypes, columnCategories); + addValuesToTablet(record, curTablet, 0); + batchList.add(curTablet); + } else { + curTablet = batchList.get(tabletIndex); + addValuesToTablet(record, curTablet, curTablet.getRowSize()); + } + curBatchSize += 1; + + int batchSize = sinkConfig.getBatchSize(); + if (batchSize > 0 && curBatchSize >= batchSize) { + flush(); + } + } + + public void addValuesToTablet(IoTDBRelationalRecord record, Tablet tablet, int rowIndex) { + tablet.addTimestamp(rowIndex, record.getTimestamp()); + int columnIndex = 0; + for (String tag : record.getTags()) { + tablet.addValue(rowIndex, columnIndex++, tag); + } + for (String attribute : record.getAttributes()) { + tablet.addValue(rowIndex, columnIndex++, attribute); + } + int totalSize = columnNames.size(); + int fieldSize = record.getFields().size(); + int tagNAttributeSize = totalSize - fieldSize; + for (int i = 0; i < fieldSize; i++) { + Object fieldValue = record.getFields().get(i); + switch (columnDataTypes.get(tagNAttributeSize + i)) { + case INT32: + tablet.addValue(rowIndex, columnIndex++, (Integer) fieldValue); + break; + case TIMESTAMP: + case INT64: + tablet.addValue(rowIndex, columnIndex++, (Long) fieldValue); + break; + case FLOAT: + tablet.addValue(rowIndex, columnIndex++, (Float) fieldValue); + break; + case DOUBLE: + tablet.addValue(rowIndex, columnIndex++, (Double) fieldValue); + break; + case BOOLEAN: + tablet.addValue(rowIndex, columnIndex++, (Boolean) fieldValue); + break; + case TEXT: + case STRING: + tablet.addValue(rowIndex, columnIndex++, (String) fieldValue); + break; + case DATE: + tablet.addValue(rowIndex, columnIndex++, LocalDate.parse((String) fieldValue)); + break; + default: + throw new IotdbConnectorException( + CommonErrorCode.UNSUPPORTED_DATA_TYPE, + "Unsupported data type: " + columnDataTypes.get(tagNAttributeSize + i)); + } + } + } + + public synchronized void close() throws IOException { + try { + flush(); + } finally { + try { + if (tableSession != null) { + tableSession.close(); + } + } catch (IoTDBConnectionException e) { + log.error("Close IoTDB client failed.", e); + } + } + } + + synchronized void flush() { + checkFlushException(); + if (batchList.isEmpty()) { + return; + } + + int maxRetries = sinkConfig.getMaxRetries(); + for (int i = 0; i <= maxRetries; i++) { + try { Review Comment: The same with last for clause -- This is an automated message from the Apache Git Service. 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