flink-connectors/flink-connector-kafka-base/src/main/java/org/apache/flink/streaming/connectors/kafka/KafkaJsonTableSink.java

/*
 * 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.streaming.connectors.kafka;

import org.apache.flink.annotation.Internal;
import org.apache.flink.api.common.serialization.SerializationSchema;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.formats.json.JsonRowSerializationSchema;
import org.apache.flink.streaming.connectors.kafka.partitioner.FlinkKafkaPartitioner;
import org.apache.flink.table.api.types.DataType;
import org.apache.flink.table.api.types.TypeConverters;
import org.apache.flink.types.Row;

import java.util.Properties;

/**
 * Base class for {@link KafkaTableSink} that serializes data in JSON format.
 *
 * @deprecated Use table descriptors instead of implementation-specific classes.
 */
@Deprecated
@Internal
public abstract class KafkaJsonTableSink extends KafkaTableSink {

	/**
	 * Creates KafkaJsonTableSink.
	 *
	 * @param topic topic in Kafka to which table is written
	 * @param properties properties to connect to Kafka
	 * @param partitioner Kafka partitioner
	 * @deprecated Use table descriptors instead of implementation-specific classes.
	 */
	@Deprecated
	public KafkaJsonTableSink(String topic, Properties properties, FlinkKafkaPartitioner<Row> partitioner) {
		super(topic, properties, partitioner);
	}

	@Override
	protected SerializationSchema<Row> createSerializationSchema(DataType rowSchema) {
		return new JsonRowSerializationSchema(
				(TypeInformation<Row>) TypeConverters.createExternalTypeInfoFromDataType(rowSchema));
	}
}