| /** |
| * 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.consumer |
| |
| import java.util.concurrent.atomic.AtomicLong |
| import kafka.utils.{Pool, Utils, threadsafe, Logging} |
| |
| trait ConsumerTopicStatMBean { |
| def getMessagesPerTopic: Long |
| def getBytesPerTopic: Long |
| } |
| |
| @threadsafe |
| class ConsumerTopicStat extends ConsumerTopicStatMBean { |
| private val numCumulatedMessagesPerTopic = new AtomicLong(0) |
| private val numCumulatedBytesPerTopic = new AtomicLong(0) |
| |
| def getMessagesPerTopic: Long = numCumulatedMessagesPerTopic.get |
| |
| def recordMessagesPerTopic(nMessages: Int) = numCumulatedMessagesPerTopic.getAndAdd(nMessages) |
| |
| def getBytesPerTopic: Long = numCumulatedBytesPerTopic.get |
| |
| def recordBytesPerTopic(nBytes: Long) = numCumulatedBytesPerTopic.getAndAdd(nBytes) |
| } |
| |
| object ConsumerTopicStat extends Logging { |
| private val stats = new Pool[String, ConsumerTopicStat] |
| private val allTopicStat = new ConsumerTopicStat |
| Utils.registerMBean(allTopicStat, "kafka:type=kafka.ConsumerAllTopicStat") |
| |
| def getConsumerAllTopicStat(): ConsumerTopicStat = allTopicStat |
| |
| def getConsumerTopicStat(topic: String): ConsumerTopicStat = { |
| var stat = stats.get(topic) |
| if (stat == null) { |
| stat = new ConsumerTopicStat |
| if (stats.putIfNotExists(topic, stat) == null) |
| Utils.registerMBean(stat, "kafka:type=kafka.ConsumerTopicStat." + topic) |
| else |
| stat = stats.get(topic) |
| } |
| return stat |
| } |
| } |