linjianchang commented on code in PR #3995: URL: https://github.com/apache/flink-cdc/pull/3995#discussion_r2443992149
########## flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-oracle/src/main/java/org/apache/flink/cdc/connectors/oracle/source/OracleDataSource.java: ########## @@ -0,0 +1,266 @@ +/* + * 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.oracle.source; + +import org.apache.flink.cdc.common.annotation.VisibleForTesting; +import org.apache.flink.cdc.common.configuration.Configuration; +import org.apache.flink.cdc.common.event.Event; +import org.apache.flink.cdc.common.source.DataSource; +import org.apache.flink.cdc.common.source.EventSourceProvider; +import org.apache.flink.cdc.common.source.FlinkSourceFunctionProvider; +import org.apache.flink.cdc.common.source.FlinkSourceProvider; +import org.apache.flink.cdc.common.source.MetadataAccessor; +import org.apache.flink.cdc.connectors.base.options.StartupOptions; +import org.apache.flink.cdc.connectors.base.source.jdbc.JdbcIncrementalSource; +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.source.meta.offset.RedoLogOffsetFactory; +import org.apache.flink.cdc.connectors.oracle.source.reader.OraclePipelineRecordEmitter; +import org.apache.flink.cdc.connectors.oracle.source.reader.OracleSourceReader; +import org.apache.flink.cdc.connectors.oracle.source.reader.OracleTableSourceReader; +import org.apache.flink.cdc.connectors.oracle.table.OracleReadableMetaData; +import org.apache.flink.cdc.debezium.DebeziumSourceFunction; +import org.apache.flink.cdc.debezium.table.DebeziumChangelogMode; +import org.apache.flink.cdc.debezium.table.MetadataConverter; +import org.apache.flink.table.api.ValidationException; +import org.apache.flink.table.connector.source.DynamicTableSource; +import org.apache.flink.table.connector.source.abilities.SupportsReadingMetadata; +import org.apache.flink.table.types.DataType; + +import java.time.Duration; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.Properties; +import java.util.stream.Collectors; +import java.util.stream.Stream; + +import static org.apache.flink.cdc.connectors.oracle.source.OracleDataSourceOptions.SCAN_STARTUP_MODE; + +/** + * A {@link DynamicTableSource} that describes how to create a Oracle redo log from a logical + * description. + */ +public class OracleDataSource implements DataSource, SupportsReadingMetadata { + + private static final String SCAN_STARTUP_MODE_VALUE_INITIAL = "initial"; + private static final String SCAN_STARTUP_MODE_VALUE_LATEST = "latest-offset"; + private static final String DEBEZIUM_PROPERTIES_PREFIX = "debezium."; + private final OracleSourceConfig sourceConfig; + private final Configuration config; + private String[] capturedTables; + + // -------------------------------------------------------------------------------------------- + // Mutable attributes + // -------------------------------------------------------------------------------------------- + + /** Data type that describes the final output of the source. */ + protected DataType producedDataType; + + /** Metadata that is appended at the end of a physical source row. */ + protected List<String> metadataKeys; + + private final List<OracleReadableMetaData> readableMetadataList; + + public OracleDataSource( + OracleSourceConfigFactory configFactory, + Configuration config, + String[] capturedTables, + List<OracleReadableMetaData> readableMetadataList) { + this.sourceConfig = configFactory.create(0); + this.config = config; + this.metadataKeys = Collections.emptyList(); + this.capturedTables = capturedTables; + this.readableMetadataList = readableMetadataList; + } + + @Override + public EventSourceProvider getEventSourceProvider() { + String url = config.get(OracleDataSourceOptions.JDBC_URL); Review Comment: url could be null，and hostname，port，database，username，password must be not null，have add checknotnull -- This is an automated message from the Apache Git Service. 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