/** * 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.message import kafka.serializer.Decoder import kafka.utils.Utils case class MessageAndMetadata[K, V](topic: String, partition: Int, private val rawMessage: Message, offset: Long, keyDecoder: Decoder[K], valueDecoder: Decoder[V]) { /** * Return the decoded message key and payload */ def key(): K = if(rawMessage.key == null) null.asInstanceOf[K] else keyDecoder.fromBytes(Utils.readBytes(rawMessage.key)) def message(): V = if(rawMessage.isNull) null.asInstanceOf[V] else valueDecoder.fromBytes(Utils.readBytes(rawMessage.payload)) }