| /** |
| * 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 kafka.common.TopicAndPartition |
| import kafka.api.ApiUtils._ |
| import kafka.network.{RequestOrResponseSend, RequestChannel} |
| import kafka.network.RequestChannel.Response |
| import kafka.utils.Logging |
| import org.apache.kafka.common.protocol.{ApiKeys, Errors} |
| |
| object ControlledShutdownRequest extends Logging { |
| val CurrentVersion = 1.shortValue |
| val DefaultClientId = "" |
| |
| def readFrom(buffer: ByteBuffer): ControlledShutdownRequest = { |
| val versionId = buffer.getShort |
| val correlationId = buffer.getInt |
| val clientId = if (versionId > 0) Some(readShortString(buffer)) else None |
| val brokerId = buffer.getInt |
| new ControlledShutdownRequest(versionId, correlationId, clientId, brokerId) |
| } |
| |
| } |
| |
| case class ControlledShutdownRequest(versionId: Short, |
| correlationId: Int, |
| clientId: Option[String], |
| brokerId: Int) |
| extends RequestOrResponse(Some(ApiKeys.CONTROLLED_SHUTDOWN_KEY.id)){ |
| |
| if (versionId > 0 && clientId.isEmpty) |
| throw new IllegalArgumentException("`clientId` must be defined if `versionId` > 0") |
| |
| def writeTo(buffer: ByteBuffer) { |
| buffer.putShort(versionId) |
| buffer.putInt(correlationId) |
| clientId.foreach(writeShortString(buffer, _)) |
| buffer.putInt(brokerId) |
| } |
| |
| def sizeInBytes: Int = { |
| 2 + /* version id */ |
| 4 + /* correlation id */ |
| clientId.fold(0)(shortStringLength) + |
| 4 /* broker id */ |
| } |
| |
| override def toString: String = { |
| describe(true) |
| } |
| |
| override def handleError(e: Throwable, requestChannel: RequestChannel, request: RequestChannel.Request): Unit = { |
| val errorResponse = ControlledShutdownResponse(correlationId, Errors.forException(e).code, Set.empty[TopicAndPartition]) |
| requestChannel.sendResponse(new Response(request, new RequestOrResponseSend(request.connectionId, errorResponse))) |
| } |
| |
| override def describe(details: Boolean = false): String = { |
| val controlledShutdownRequest = new StringBuilder |
| controlledShutdownRequest.append("Name: " + this.getClass.getSimpleName) |
| controlledShutdownRequest.append("; Version: " + versionId) |
| controlledShutdownRequest.append("; CorrelationId: " + correlationId) |
| controlledShutdownRequest.append(";ClientId:" + clientId) |
| controlledShutdownRequest.append("; BrokerId: " + brokerId) |
| controlledShutdownRequest.toString() |
| } |
| } |