package kafka.api /** * 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. */ import java.nio._ import kafka.network.RequestChannel import kafka.utils.Logging object Request { val OrdinaryConsumerId: Int = -1 val DebuggingConsumerId: Int = -2 // Broker ids are non-negative int. def isValidBrokerId(brokerId: Int): Boolean = (brokerId >= 0) } abstract class RequestOrResponse(val requestId: Option[Short] = None) extends Logging { def sizeInBytes: Int def writeTo(buffer: ByteBuffer): Unit def handleError(e: Throwable, requestChannel: RequestChannel, request: RequestChannel.Request): Unit = {} /* The purpose of this API is to return a string description of the Request mainly for the purpose of request logging. * This API has no meaning for a Response object. * @param details If this is false, omit the parts of the request description that are proportional to the number of * topics or partitions. This is mainly to control the amount of request logging. */ def describe(details: Boolean):String }