001/* 002 * Copyright 2019 Anyware Services 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.ametys.runtime.plugins.admin.jvmstatus.monitoring.sample; 018 019import java.io.IOException; 020import java.util.HashMap; 021import java.util.List; 022import java.util.Map; 023 024import org.apache.avalon.framework.service.ServiceException; 025import org.apache.avalon.framework.service.ServiceManager; 026import org.apache.avalon.framework.service.Serviceable; 027import org.rrd4j.DsType; 028import org.rrd4j.core.RrdDef; 029import org.rrd4j.core.Sample; 030 031import org.ametys.core.cache.AbstractCacheManager; 032import org.ametys.core.cache.Cache; 033import org.ametys.runtime.plugins.admin.jvmstatus.monitoring.SampleManager; 034 035/** 036 * {@link SampleManager} for collecting the throughput and the number of active 037 * HTTP requests . 038 */ 039public class CacheSampleManager extends AbstractSampleManager implements Serviceable 040{ 041 042 private AbstractCacheManager _cacheManager; 043 044 @Override 045 public void service(ServiceManager manager) throws ServiceException 046 { 047 _cacheManager = (AbstractCacheManager) manager.lookup(AbstractCacheManager.ROLE); 048 } 049 050 @Override 051 protected void _configureDatasources(RrdDef rrdDef) 052 { 053 _registerDatasources(rrdDef, "total", DsType.GAUGE, 0, Double.NaN); 054 } 055 056 @Override 057 protected Map<String, Object> _internalCollect(Sample sample) throws IOException 058 { 059 try 060 { 061 long sum = _cacheManager.getAllCaches() 062 .values() 063 .stream() 064 .flatMap(List::stream) 065 .filter(Cache::isComputableSize) 066 .mapToLong(Cache::getMemorySize) 067 .sum(); 068 float value = sum / (1024f * 1024f); 069 070 sample.setValue("total", value); 071 072 Map<String, Object> result = new HashMap<>(); 073 result.put("total", value); 074 return result; 075 } 076 catch (RuntimeException e) 077 { 078 throw new IOException(e); 079 } 080 } 081 082 @Override 083 protected String _getGraphTitle() 084 { 085 return "Cache"; 086 } 087}