| /* |
| * 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.jackrabbit.oak.segment.file; |
| |
| import static org.apache.jackrabbit.stats.TimeSeriesStatsUtil.asCompositeData; |
| |
| import javax.management.openmbean.CompositeData; |
| |
| import org.apache.jackrabbit.api.stats.TimeSeries; |
| import org.apache.jackrabbit.oak.commons.IOUtils; |
| import org.apache.jackrabbit.oak.segment.spi.monitor.FileStoreMonitor; |
| import org.apache.jackrabbit.oak.stats.CounterStats; |
| import org.apache.jackrabbit.oak.stats.MeterStats; |
| import org.apache.jackrabbit.oak.stats.StatisticsProvider; |
| import org.apache.jackrabbit.oak.stats.StatsOptions; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class FileStoreStats implements FileStoreStatsMBean, FileStoreMonitor { |
| public static final String SEGMENT_REPO_SIZE = "SEGMENT_REPO_SIZE"; |
| public static final String SEGMENT_WRITES = "SEGMENT_WRITES"; |
| public static final String JOURNAL_WRITES = "JOURNAL_WRITES"; |
| |
| private final StatisticsProvider statisticsProvider; |
| private final FileStore store; |
| private final MeterStats writeStats; |
| private final CounterStats repoSize; |
| private final MeterStats journalWriteStats; |
| |
| public FileStoreStats(StatisticsProvider statisticsProvider, FileStore store, long initialSize) { |
| this.statisticsProvider = statisticsProvider; |
| this.store = store; |
| this.writeStats = statisticsProvider.getMeter(SEGMENT_WRITES, StatsOptions.DEFAULT); |
| this.repoSize = statisticsProvider.getCounterStats(SEGMENT_REPO_SIZE, StatsOptions.DEFAULT); |
| this.journalWriteStats = statisticsProvider.getMeter(JOURNAL_WRITES, StatsOptions.DEFAULT); |
| repoSize.inc(initialSize); |
| } |
| |
| public void init(long initialSize) { |
| repoSize.inc(initialSize); |
| } |
| |
| //~-----------------------------< FileStoreMonitor > |
| |
| @Override |
| public void written(long delta) { |
| writeStats.mark(delta); |
| repoSize.inc(delta); |
| } |
| |
| @Override |
| public void reclaimed(long size) { |
| repoSize.dec(size); |
| } |
| |
| @Override |
| public void flushed() { |
| journalWriteStats.mark(); |
| } |
| |
| //~--------------------------------< FileStoreStatsMBean > |
| |
| @Override |
| public long getApproximateSize() { |
| return repoSize.getCount(); |
| } |
| |
| @Override |
| public int getTarFileCount() { |
| return store.readerCount() + 1; //1 for the writer |
| } |
| |
| @Override |
| public int getSegmentCount() { |
| return store.getSegmentCount(); |
| } |
| |
| @NotNull |
| @Override |
| public CompositeData getWriteStats() { |
| return asCompositeData(getTimeSeries(SEGMENT_WRITES), SEGMENT_WRITES); |
| } |
| |
| @NotNull |
| @Override |
| public CompositeData getRepositorySize() { |
| return asCompositeData(getTimeSeries(SEGMENT_REPO_SIZE), SEGMENT_REPO_SIZE); |
| } |
| |
| @Override |
| public String fileStoreInfoAsString() { |
| return String.format("Segment store size : %s%n" + |
| "Number of tar files : %d", |
| IOUtils.humanReadableByteCount(getApproximateSize()), |
| getTarFileCount()); |
| } |
| |
| @Override |
| public long getJournalWriteStatsAsCount() { |
| return journalWriteStats.getCount(); |
| } |
| |
| @Override |
| public CompositeData getJournalWriteStatsAsCompositeData() { |
| return asCompositeData(getTimeSeries(JOURNAL_WRITES), JOURNAL_WRITES); |
| } |
| |
| private TimeSeries getTimeSeries(String name) { |
| return statisticsProvider.getStats().getTimeSeries(name, true); |
| } |
| } |