| /** |
| * 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._ |
| import kafka.network._ |
| import kafka.utils._ |
| |
| object FetchRequest { |
| |
| def readFrom(buffer: ByteBuffer): FetchRequest = { |
| val topic = Utils.readShortString(buffer, "UTF-8") |
| val partition = buffer.getInt() |
| val offset = buffer.getLong() |
| val size = buffer.getInt() |
| new FetchRequest(topic, partition, offset, size) |
| } |
| } |
| |
| class FetchRequest(val topic: String, |
| val partition: Int, |
| val offset: Long, |
| val maxSize: Int) extends Request(RequestKeys.Fetch) { |
| |
| def writeTo(buffer: ByteBuffer) { |
| Utils.writeShortString(buffer, topic, "UTF-8") |
| buffer.putInt(partition) |
| buffer.putLong(offset) |
| buffer.putInt(maxSize) |
| } |
| |
| def sizeInBytes(): Int = 2 + topic.length + 4 + 8 + 4 |
| |
| override def toString(): String= "FetchRequest(topic:" + topic + ", part:" + partition +" offset:" + offset + |
| " maxSize:" + maxSize + ")" |
| } |