kafka.message.MessageAndMetadata.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.message
import kafka.serializer.Decoder
import org.apache.kafka.common.record.TimestampType
import org.apache.kafka.common.utils.Utils
case class MessageAndMetadata[K, V](topic: String,
partition: Int,
private val rawMessage: Message,
offset: Long,
keyDecoder: Decoder[K], valueDecoder: Decoder[V],
timestamp: Long = Message.NoTimestamp,
timestampType: TimestampType = TimestampType.CREATE_TIME) {
/**
* 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))
}