yuxiqian commented on code in PR #3916: URL: https://github.com/apache/flink-cdc/pull/3916#discussion_r2022484480
########## flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-jdbc-parent/flink-cdc-pipeline-connector-jdbc-core/src/main/java/org/apache/flink/cdc/connectors/jdbc/factory/JdbcDataSinkFactory.java: ########## @@ -0,0 +1,163 @@ +/* + * 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.flink.cdc.connectors.jdbc.factory; + +import org.apache.flink.cdc.common.configuration.ConfigOption; +import org.apache.flink.cdc.common.configuration.Configuration; +import org.apache.flink.cdc.common.factories.DataSinkFactory; +import org.apache.flink.cdc.common.factories.FactoryHelper; +import org.apache.flink.cdc.common.sink.DataSink; +import org.apache.flink.cdc.connectors.base.utils.OptionUtils; +import org.apache.flink.cdc.connectors.jdbc.config.JdbcSinkConfig; +import org.apache.flink.cdc.connectors.jdbc.dialect.JdbcSinkDialectFactory; +import org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions; +import org.apache.flink.cdc.connectors.jdbc.sink.JdbcDataSink; +import org.apache.flink.configuration.ConfigurationUtils; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.HashSet; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; +import java.util.Properties; +import java.util.ServiceConfigurationError; +import java.util.ServiceLoader; +import java.util.Set; +import java.util.stream.Collectors; + +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.CONNECTION_POOL_SIZE; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.CONNECT_MAX_RETRIES; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.CONNECT_TIMEOUT; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.CONN_URL; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.DRIVER_CLASS_NAME; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.JDBC_PROPERTIES_PROP_PREFIX; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.PASSWORD; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.SERVER_TIME_ZONE; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.USERNAME; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.WRITE_BATCH_INTERVAL_MS; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.WRITE_BATCH_SIZE; +import static org.apache.flink.cdc.connectors.jdbc.options.JdbcSinkOptions.WRITE_MAX_RETRIES; + +/** A {@link DataSinkFactory} for creating JDBC sinks. */ +public class JdbcDataSinkFactory implements DataSinkFactory { + + public static final String IDENTIFIER = "jdbc"; + + private static final Logger LOG = LoggerFactory.getLogger(JdbcDataSinkFactory.class); + + @Override + public DataSink createDataSink(Context context) { + FactoryHelper.createFactoryHelper(this, context) + .validateExcept(JDBC_PROPERTIES_PROP_PREFIX); + + // Construct JdbcSinkConfig from FactoryConfigurations + final Configuration config = context.getFactoryConfiguration(); + JdbcSinkConfig.Builder<?> builder = new JdbcSinkConfig.Builder<>(); + + List<JdbcSinkDialectFactory<JdbcSinkConfig>> dialectFactories = + discoverDialectFactories(getClass().getClassLoader()); + config.getOptional(CONN_URL).ifPresent(builder::connUrl); + config.getOptional(USERNAME).ifPresent(builder::username); + config.getOptional(PASSWORD).ifPresent(builder::password); + + builder.serverTimeZone(config.getOptional(SERVER_TIME_ZONE).orElse("UTC")); + builder.connectTimeout(config.get(CONNECT_TIMEOUT)); + builder.connectionPoolSize(config.get(CONNECTION_POOL_SIZE)); + builder.connectMaxRetries(config.get(CONNECT_MAX_RETRIES)); + builder.writeBatchIntervalMs(config.get(WRITE_BATCH_INTERVAL_MS)); + builder.writeBatchSize(config.get(WRITE_BATCH_SIZE)); + builder.writeMaxRetries(config.get(WRITE_MAX_RETRIES)); + builder.driverClassName(config.get(DRIVER_CLASS_NAME)); + + Properties properties = new Properties(); + Map<String, String> jdbcProperties = + JdbcSinkOptions.getPropertiesByPrefix(config, JDBC_PROPERTIES_PROP_PREFIX); + properties.putAll(jdbcProperties); + builder.jdbcProperties(properties); + JdbcSinkConfig jdbcSinkConfig = builder.build(); + + // Discover corresponding factory + String dialect = jdbcSinkConfig.getDialect(); + JdbcSinkDialectFactory<JdbcSinkConfig> dialectFactory = Review Comment: Exception will be thrown if `.findFirst()` returns empty by calling `.orElseThrow`. -- This is an automated message from the Apache Git Service. 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