linjianchang commented on code in PR #3995: URL: https://github.com/apache/flink-cdc/pull/3995#discussion_r2517692080
########## flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-oracle/src/main/java/com/apache/flink/cdc/connectors/oracle/factory/OracleDataSourceFactory.java: ########## @@ -0,0 +1,286 @@ +/* + * 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 com.apache.flink.cdc.connectors.oracle.factory; + +import org.apache.flink.cdc.common.annotation.Internal; +import org.apache.flink.cdc.common.configuration.ConfigOption; +import org.apache.flink.cdc.common.configuration.Configuration; +import org.apache.flink.cdc.common.event.TableId; +import org.apache.flink.cdc.common.factories.DataSourceFactory; +import org.apache.flink.cdc.common.schema.Selectors; +import org.apache.flink.cdc.common.source.DataSource; +import org.apache.flink.cdc.common.utils.StringUtils; +import org.apache.flink.cdc.connectors.base.options.StartupOptions; +import org.apache.flink.cdc.connectors.oracle.source.config.OracleSourceConfig; +import org.apache.flink.cdc.connectors.oracle.source.config.OracleSourceConfigFactory; +import org.apache.flink.cdc.connectors.oracle.table.OracleReadableMetaData; +import org.apache.flink.table.api.ValidationException; + +import com.apache.flink.cdc.connectors.oracle.source.OracleDataSource; +import com.apache.flink.cdc.connectors.oracle.source.OracleDataSourceOptions; +import com.apache.flink.cdc.connectors.oracle.utils.OracleSchemaUtils; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.time.ZoneId; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.stream.Collectors; + +import static com.apache.flink.cdc.connectors.oracle.source.OracleDataSourceOptions.METADATA_LIST; +import static org.apache.flink.cdc.connectors.base.utils.ObjectUtils.doubleCompare; +import static org.apache.flink.util.Preconditions.checkState; + +/** A {@link Factory} to create {@link OracleDataSource}. */ +@Internal +public class OracleDataSourceFactory implements DataSourceFactory { + + private static final Logger LOG = LoggerFactory.getLogger(OracleDataSourceFactory.class); + + public static final String IDENTIFIER = "oracle"; + private String[] capturedTables; + + @Override + public DataSource createDataSource(Context context) { + final Configuration config = context.getFactoryConfiguration(); + int fetchSize = config.get(OracleDataSourceOptions.SCAN_SNAPSHOT_FETCH_SIZE); + int splitSize = config.get(OracleDataSourceOptions.SCAN_INCREMENTAL_SNAPSHOT_CHUNK_SIZE); + int splitMetaGroupSize = config.get(OracleDataSourceOptions.CHUNK_META_GROUP_SIZE); + + double distributionFactorUpper = + config.get(OracleDataSourceOptions.CHUNK_KEY_EVEN_DISTRIBUTION_FACTOR_UPPER_BOUND); + double distributionFactorLower = + config.get(OracleDataSourceOptions.CHUNK_KEY_EVEN_DISTRIBUTION_FACTOR_LOWER_BOUND); + int connectMaxRetries = config.get(OracleDataSourceOptions.CONNECT_MAX_RETRIES); + int connectionPoolSize = config.get(OracleDataSourceOptions.CONNECTION_POOL_SIZE); + String tables = config.get(OracleDataSourceOptions.TABLES); + validateIntegerOption( + OracleDataSourceOptions.SCAN_INCREMENTAL_SNAPSHOT_CHUNK_SIZE, splitSize, 1); + validateIntegerOption(OracleDataSourceOptions.CHUNK_META_GROUP_SIZE, splitMetaGroupSize, 1); + validateIntegerOption(OracleDataSourceOptions.SCAN_SNAPSHOT_FETCH_SIZE, fetchSize, 1); + validateIntegerOption(OracleDataSourceOptions.CONNECTION_POOL_SIZE, connectionPoolSize, 1); + validateIntegerOption(OracleDataSourceOptions.CONNECT_MAX_RETRIES, connectMaxRetries, 0); + validateDistributionFactorUpper(distributionFactorUpper); + validateDistributionFactorLower(distributionFactorLower); + OracleSourceConfigFactory configFactory = + (OracleSourceConfigFactory) + new OracleSourceConfigFactory() + .hostname( + config.getOptional(OracleDataSourceOptions.HOSTNAME).get()) + .port(config.getOptional(OracleDataSourceOptions.PORT).get()) + .databaseList( + config.getOptional(OracleDataSourceOptions.DATABASE) + .get()) // monitor oracledatabase + .tableList( + config.getOptional(OracleDataSourceOptions.TABLES) + .get()) // monitor productstable + .username( + config.getOptional(OracleDataSourceOptions.USERNAME).get()) + .password( + config.getOptional(OracleDataSourceOptions.PASSWORD).get()) + .includeSchemaChanges(true); + Selectors selectors = new Selectors.SelectorsBuilder().includeTables(tables).build(); + String[] capturedTables = getTableList(configFactory.create(0), selectors); + if (capturedTables.length == 0) { + throw new IllegalArgumentException( + "Cannot find any table by the option 'tables' = " + tables); + } + configFactory.tableList(capturedTables); + configFactory.databaseList(config.getOptional(OracleDataSourceOptions.DATABASE).get()); + configFactory.schemaList( + new String[] {config.getOptional(OracleDataSourceOptions.SCHEMALIST).get()}); + String metadataList = config.get(METADATA_LIST); + List<OracleReadableMetaData> readableMetadataList = listReadableMetadata(metadataList); + return new OracleDataSource(configFactory, config, capturedTables, readableMetadataList); + } + + public static List<OracleReadableMetaData> listReadableMetadata(String metadataList) { + if (StringUtils.isNullOrWhitespaceOnly(metadataList)) { + return new ArrayList<>(); + } + Set<String> readableMetadataList = + Arrays.stream(metadataList.split(",")) + .map(String::trim) + .collect(Collectors.toSet()); + List<OracleReadableMetaData> foundMetadata = new ArrayList<>(); + for (OracleReadableMetaData metadata : OracleReadableMetaData.values()) { + if (readableMetadataList.contains(metadata.getKey())) { + foundMetadata.add(metadata); + readableMetadataList.remove(metadata.getKey()); + } + } + if (readableMetadataList.isEmpty()) { + return foundMetadata; + } + throw new IllegalArgumentException( + String.format( + "[%s] cannot be found in mysql metadata.", + String.join(", ", readableMetadataList))); + } + + @Override + public Set<ConfigOption<?>> requiredOptions() { + Set<ConfigOption<?>> options = new HashSet<>(); + options.add(OracleDataSourceOptions.HOSTNAME); + options.add(OracleDataSourceOptions.PORT); + options.add(OracleDataSourceOptions.USERNAME); + options.add(OracleDataSourceOptions.PASSWORD); + options.add(OracleDataSourceOptions.SCHEMALIST); + options.add(OracleDataSourceOptions.DATABASE); + options.add(OracleDataSourceOptions.TABLES); + options.add(METADATA_LIST); + return options; + } + + @Override + public Set<ConfigOption<?>> optionalOptions() { + Set<ConfigOption<?>> options = new HashSet<>(); + options.add(OracleDataSourceOptions.SERVER_TIME_ZONE); + options.add(OracleDataSourceOptions.SERVER_ID); + options.add(OracleDataSourceOptions.SCAN_STARTUP_MODE); + options.add(OracleDataSourceOptions.SCAN_STARTUP_SPECIFIC_OFFSET_FILE); + options.add(OracleDataSourceOptions.SCAN_STARTUP_SPECIFIC_OFFSET_POS); + options.add(OracleDataSourceOptions.SCAN_STARTUP_SPECIFIC_OFFSET_GTID_SET); + options.add(OracleDataSourceOptions.SCAN_STARTUP_SPECIFIC_OFFSET_SKIP_EVENTS); + options.add(OracleDataSourceOptions.SCAN_STARTUP_SPECIFIC_OFFSET_SKIP_ROWS); + options.add(OracleDataSourceOptions.SCAN_STARTUP_TIMESTAMP_MILLIS); + options.add(OracleDataSourceOptions.SCAN_INCREMENTAL_SNAPSHOT_CHUNK_SIZE); + options.add(OracleDataSourceOptions.CHUNK_META_GROUP_SIZE); + options.add(OracleDataSourceOptions.SCAN_SNAPSHOT_FETCH_SIZE); + options.add(OracleDataSourceOptions.CONNECT_TIMEOUT); + options.add(OracleDataSourceOptions.CONNECTION_POOL_SIZE); + options.add(OracleDataSourceOptions.CHUNK_KEY_EVEN_DISTRIBUTION_FACTOR_UPPER_BOUND); + options.add(OracleDataSourceOptions.CHUNK_KEY_EVEN_DISTRIBUTION_FACTOR_LOWER_BOUND); + options.add(OracleDataSourceOptions.CONNECT_MAX_RETRIES); + options.add(OracleDataSourceOptions.SCAN_INCREMENTAL_CLOSE_IDLE_READER_ENABLED); + options.add(OracleDataSourceOptions.HEARTBEAT_INTERVAL); + options.add(OracleDataSourceOptions.SCHEMA_CHANGE_ENABLED); + options.add(OracleDataSourceOptions.SCAN_INCREMENTAL_SNAPSHOT_BACKFILL_SKIP); + options.add(OracleDataSourceOptions.SPLIT_KEY_EVEN_DISTRIBUTION_FACTOR_LOWER_BOUND); + options.add(OracleDataSourceOptions.SPLIT_KEY_EVEN_DISTRIBUTION_FACTOR_UPPER_BOUND); + options.add(OracleDataSourceOptions.SCAN_INCREMENTAL_SNAPSHOT_ENABLED); + options.add(OracleDataSourceOptions.SNAPSHOT_LOCKING_MODE); + options.add(OracleDataSourceOptions.HISTORY_CAPTURED_TABLES_DDL_ENABLE); + options.add(OracleDataSourceOptions.LOG_MINING_CONTINUOUS_MINE); + options.add(OracleDataSourceOptions.LOG_MINING_STRATEGY); + options.add(OracleDataSourceOptions.DATABASE_CONNECTION_ADAPTER); + options.add(OracleDataSourceOptions.DATABASE_TABLE_CASE_INSENSITIVE); + return options; + } + + @Override + public String identifier() { + return IDENTIFIER; + } + + private static final String SCAN_STARTUP_MODE_VALUE_INITIAL = "initial"; + private static final String SCAN_STARTUP_MODE_VALUE_EARLIEST = "earliest-offset"; + private static final String SCAN_STARTUP_MODE_VALUE_LATEST = "latest-offset"; + private static final String SCAN_STARTUP_MODE_VALUE_SPECIFIC_OFFSET = "specific-offset"; + private static final String SCAN_STARTUP_MODE_VALUE_TIMESTAMP = "timestamp"; Review Comment: reference mysql pipeline，it like this -- This is an automated message from the Apache Git Service. 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