| /* |
| * 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 org.apache.bookkeeper.mledger.impl; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.LongAdder; |
| import org.apache.bookkeeper.mledger.ManagedLedgerFactoryMXBean; |
| import org.apache.pulsar.common.stats.Rate; |
| |
| @SuppressWarnings("checkstyle:javadoctype") |
| public class ManagedLedgerFactoryMBeanImpl implements ManagedLedgerFactoryMXBean { |
| |
| private final ManagedLedgerFactoryImpl factory; |
| |
| final Rate cacheHits = new Rate(); |
| final Rate cacheMisses = new Rate(); |
| final Rate cacheEvictions = new Rate(); |
| |
| private final LongAdder insertedEntryCount = new LongAdder(); |
| private final LongAdder evictedEntryCount = new LongAdder(); |
| private final LongAdder cacheEntryCount = new LongAdder(); |
| |
| public ManagedLedgerFactoryMBeanImpl(ManagedLedgerFactoryImpl factory) throws Exception { |
| this.factory = factory; |
| } |
| |
| public void refreshStats(long period, TimeUnit unit) { |
| double seconds = unit.toMillis(period) / 1000.0; |
| |
| if (seconds <= 0.0) { |
| // skip refreshing stats |
| return; |
| } |
| |
| cacheHits.calculateRate(seconds); |
| cacheMisses.calculateRate(seconds); |
| cacheEvictions.calculateRate(seconds); |
| } |
| |
| public void recordCacheHit(long size) { |
| cacheHits.recordEvent(size); |
| } |
| |
| public void recordCacheHits(int count, long totalSize) { |
| cacheHits.recordMultipleEvents(count, totalSize); |
| } |
| |
| public void recordCacheMiss(int count, long totalSize) { |
| cacheMisses.recordMultipleEvents(count, totalSize); |
| } |
| |
| public void recordCacheEviction() { |
| cacheEvictions.recordEvent(); |
| } |
| |
| public void recordCacheInsertion() { |
| insertedEntryCount.increment(); |
| cacheEntryCount.increment(); |
| } |
| |
| public void recordNumberOfCacheEntriesEvicted(int count) { |
| evictedEntryCount.add(count); |
| cacheEntryCount.add(-count); |
| } |
| |
| @Override |
| public int getNumberOfManagedLedgers() { |
| return factory.ledgers.size(); |
| } |
| |
| @Override |
| public long getCacheUsedSize() { |
| return factory.getEntryCacheManager().getSize(); |
| } |
| |
| @Override |
| public long getCacheMaxSize() { |
| return factory.getEntryCacheManager().getMaxSize(); |
| } |
| |
| @Override |
| public double getCacheHitsRate() { |
| return cacheHits.getRate(); |
| } |
| |
| @Override |
| public double getCacheMissesRate() { |
| return cacheMisses.getRate(); |
| } |
| |
| @Override |
| public double getCacheHitsThroughput() { |
| return cacheHits.getValueRate(); |
| } |
| |
| @Override |
| public double getCacheMissesThroughput() { |
| return cacheMisses.getValueRate(); |
| } |
| |
| @Override |
| public long getNumberOfCacheEvictions() { |
| return cacheEvictions.getCount(); |
| } |
| |
| public long getCacheInsertedEntriesCount() { |
| return insertedEntryCount.sum(); |
| } |
| |
| public long getCacheEvictedEntriesCount() { |
| return evictedEntryCount.sum(); |
| } |
| |
| public long getCacheEntriesCount() { |
| return cacheEntryCount.sum(); |
| } |
| |
| } |