| /** |
| * 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.api |
| |
| import java.nio.ByteBuffer |
| import scala.collection.Map |
| import kafka.common.{TopicAndPartition, ErrorMapping} |
| import kafka.api.ApiUtils._ |
| |
| object ProducerResponse { |
| def readFrom(buffer: ByteBuffer): ProducerResponse = { |
| val correlationId = buffer.getInt |
| val topicCount = buffer.getInt |
| val statusPairs = (1 to topicCount).flatMap(_ => { |
| val topic = readShortString(buffer) |
| val partitionCount = buffer.getInt |
| (1 to partitionCount).map(_ => { |
| val partition = buffer.getInt |
| val error = buffer.getShort |
| val offset = buffer.getLong |
| (TopicAndPartition(topic, partition), ProducerResponseStatus(error, offset)) |
| }) |
| }) |
| |
| ProducerResponse(correlationId, Map(statusPairs:_*)) |
| } |
| } |
| |
| case class ProducerResponseStatus(var error: Short, offset: Long) |
| |
| case class ProducerResponse(correlationId: Int, |
| status: Map[TopicAndPartition, ProducerResponseStatus]) |
| extends RequestOrResponse() { |
| |
| /** |
| * Partitions the status map into a map of maps (one for each topic). |
| */ |
| private lazy val statusGroupedByTopic = status.groupBy(_._1.topic) |
| |
| def hasError = status.values.exists(_.error != ErrorMapping.NoError) |
| |
| val sizeInBytes = { |
| val groupedStatus = statusGroupedByTopic |
| 4 + /* correlation id */ |
| 4 + /* topic count */ |
| groupedStatus.foldLeft (0) ((foldedTopics, currTopic) => { |
| foldedTopics + |
| shortStringLength(currTopic._1) + |
| 4 + /* partition count for this topic */ |
| currTopic._2.size * { |
| 4 + /* partition id */ |
| 2 + /* error code */ |
| 8 /* offset */ |
| } |
| }) |
| } |
| |
| def writeTo(buffer: ByteBuffer) { |
| val groupedStatus = statusGroupedByTopic |
| buffer.putInt(correlationId) |
| buffer.putInt(groupedStatus.size) // topic count |
| |
| groupedStatus.foreach(topicStatus => { |
| val (topic, errorsAndOffsets) = topicStatus |
| writeShortString(buffer, topic) |
| buffer.putInt(errorsAndOffsets.size) // partition count |
| errorsAndOffsets.foreach { |
| case((TopicAndPartition(_, partition), ProducerResponseStatus(error, nextOffset))) => |
| buffer.putInt(partition) |
| buffer.putShort(error) |
| buffer.putLong(nextOffset) |
| } |
| }) |
| } |
| |
| override def describe(details: Boolean):String = { toString } |
| } |
| |