001/* 002 * Copyright 2016 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 */ 016package org.ametys.runtime.plugins.admin.jvmstatus.monitoring.sample; 017 018import java.io.IOException; 019import java.util.Collections; 020import java.util.HashMap; 021import java.util.Map; 022 023import org.apache.avalon.framework.service.ServiceException; 024import org.apache.avalon.framework.service.ServiceManager; 025import org.apache.avalon.framework.service.Serviceable; 026import org.rrd4j.DsType; 027import org.rrd4j.core.RrdDef; 028import org.rrd4j.core.Sample; 029 030import org.ametys.runtime.plugins.admin.jvmstatus.monitoring.DiskSpaceHelper; 031import org.ametys.runtime.plugins.admin.jvmstatus.monitoring.SampleManager; 032import org.ametys.runtime.plugins.admin.jvmstatus.monitoring.alerts.AbstractAlertSampleManager; 033import org.ametys.runtime.plugins.admin.jvmstatus.monitoring.alerts.AlertSampleManager.Threshold.Operator; 034 035/** 036 * {@link SampleManager} for collecting the free disk space (in MB) on the disk where Ametys Home is. 037 */ 038public class DiskSpaceSampleManager extends AbstractAlertSampleManager implements Serviceable 039{ 040 private DiskSpaceHelper _diskSpaceHelper; 041 042 @Override 043 public void service(ServiceManager manager) throws ServiceException 044 { 045 _diskSpaceHelper = (DiskSpaceHelper) manager.lookup(DiskSpaceHelper.ROLE); 046 } 047 048 @Override 049 protected void _configureDatasources(RrdDef rrdDef) 050 { 051 _registerDatasources(rrdDef, "free", DsType.GAUGE, 0, Double.NaN); 052 } 053 054 @Override 055 protected Map<String, Object> _internalCollect(Sample sample) throws IOException 056 { 057 Map<String, Object> result = new HashMap<>(); 058 long free = _diskSpaceHelper.getAvailableSpace() / 1024 / 1024; //B to MB 059 060 sample.setValue("free", free); 061 result.put("free", free); 062 063 return result; 064 } 065 066 @Override 067 protected String _getGraphTitle() 068 { 069 return "Free space on disk"; 070 } 071 072 @Override 073 protected Map<String, String> getThresholdConfigNames() 074 { 075 return Collections.singletonMap("free", "runtime.system.alerts.diskspace.threshold"); 076 } 077 078 @Override 079 protected Map<String, Operator> getOperators() 080 { 081 return Collections.singletonMap("free", Operator.LEQ); 082 } 083}