/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* Licensed 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.linkedin.pinot.core.realtime.impl.kafka;
import java.util.Map;
import com.linkedin.pinot.common.data.Schema;
import com.linkedin.pinot.core.data.GenericRow;
public interface KafkaMessageDecoder {
/**
*
* @param props
* @throws Exception
*/
void init(Map<String, String> props, Schema indexingSchema, String kafkaTopicName) throws Exception;
/**
*
* @param payload
* @return
*/
GenericRow decode(byte[] payload, GenericRow destination);
/**
* Decodes a row.
*
* @param payload The buffer from which to read the row.
* @param offset The offset into the array from which the row contents starts
* @param length The length of the row contents in bytes
* @param destination The {@link GenericRow} to write the decoded row into
* @return A new row decoded from the buffer
*/
GenericRow decode(byte[] payload, int offset, int length, GenericRow destination);
}