[FLINK-36913][pipeline-connector][kafka] Introduce option to define custom mapping from upstream table id to downstream topic name
This closes #3805pull/3658/head
Kunni
2 weeks ago
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GitHub
parent
77785c1c08
commit
a16abd5d24
@ -0,0 +1,52 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.flink.cdc.connectors.kafka.utils;
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import org.apache.flink.cdc.common.schema.Selectors;
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import org.apache.flink.cdc.common.utils.Preconditions;
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import org.apache.flink.cdc.connectors.kafka.sink.KafkaDataSinkOptions;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import static org.apache.flink.cdc.connectors.kafka.sink.KafkaDataSinkOptions.DELIMITER_SELECTOR_TOPIC;
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import static org.apache.flink.cdc.connectors.kafka.sink.KafkaDataSinkOptions.DELIMITER_TABLE_MAPPINGS;
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/** Util class for {@link org.apache.flink.cdc.connectors.kafka.sink.KafkaDataSink}. */
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public class KafkaSinkUtils {
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/** Parse the mapping text to a map from Selectors to Kafka Topic name. */
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public static Map<Selectors, String> parseSelectorsToTopicMap(String mappingRuleString) {
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// Keep the order.
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Map<Selectors, String> result = new LinkedHashMap<>();
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if (mappingRuleString == null || mappingRuleString.isEmpty()) {
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return result;
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}
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for (String mapping : mappingRuleString.split(DELIMITER_TABLE_MAPPINGS)) {
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String[] selectorsAndTopic = mapping.split(DELIMITER_SELECTOR_TOPIC);
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Preconditions.checkArgument(
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selectorsAndTopic.length == 2,
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"Please check your configuration of "
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+ KafkaDataSinkOptions.SINK_TABLE_ID_TO_TOPIC_MAPPING);
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Selectors selectors =
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new Selectors.SelectorsBuilder().includeTables(selectorsAndTopic[0]).build();
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result.put(selectors, selectorsAndTopic[1]);
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}
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return result;
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}
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}
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