kafka.common.MessageFormatter.scala Maven / Gradle / Ivy
/**
* 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 kafka.common
import java.io.PrintStream
import java.util.Properties
import org.apache.kafka.clients.consumer.ConsumerRecord
/**
* Typical implementations of this interface convert a `ConsumerRecord` into a type that can then be passed to
* a `PrintStream`.
*
* This is used by the `ConsoleConsumer`.
*/
trait MessageFormatter {
def init(props: Properties): Unit = {}
def writeTo(consumerRecord: ConsumerRecord[Array[Byte], Array[Byte]], output: PrintStream): Unit
def close(): Unit = {}
}