001/*
002 *  Copyright 2012 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.lang.management.ManagementFactory;
020import java.util.HashMap;
021import java.util.Map;
022
023import org.rrd4j.DsType;
024import org.rrd4j.core.RrdDef;
025import org.rrd4j.core.Sample;
026
027import org.ametys.runtime.plugins.admin.jvmstatus.monitoring.SampleManager;
028
029/**
030 * {@link SampleManager} for collecting the uptime of the JVM.
031 */
032public class UptimeSampleManager extends AbstractSampleManager
033{
034    @Override
035    protected void _configureDatasources(RrdDef rrdDef)
036    {
037        _registerDatasources(rrdDef, "uptime", DsType.GAUGE, 0, Double.NaN);
038    }
039
040    @Override
041    protected Map<String, Object> _internalCollect(Sample sample) throws IOException
042    {
043        Map<String, Object> result = new HashMap<>();
044        long uptime = ManagementFactory.getRuntimeMXBean().getUptime();
045        sample.setValue("uptime", uptime);
046        result.put("uptime", uptime);
047        return result;
048    }
049
050    @Override
051    protected String _getGraphTitle()
052    {
053        return "Uptime";
054    }
055}