/*
* 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.kafka.common.serialization;
import java.io.Closeable;
import java.util.Map;
/**
*
* @param <T> Type to be serialized from.
*
* A class that implements this interface is expected to have a constructor with no parameter.
* <p>
* Implement {@link org.apache.kafka.common.ClusterResourceListener} to receive cluster metadata once it's available. Please see the class documentation for ClusterResourceListener for more information.
*/
public interface Serializer<T> extends Closeable {
/**
* Configure this class.
* @param configs configs in key/value pairs
* @param isKey whether is for key or value
*/
public void configure(Map<String, ?> configs, boolean isKey);
/**
* @param topic topic associated with data
* @param data typed data
* @return serialized bytes
*/
public byte[] serialize(String topic, T data);
/**
* Close this serializer.
* This method has to be idempotent if the serializer is used in KafkaProducer because it might be called
* multiple times.
*/
@Override
public void close();
}