001    /**
002     *  Licensed to the Apache Software Foundation (ASF) under one or more
003     *  contributor license agreements.  See the NOTICE file distributed with
004     *  this work for additional information regarding copyright ownership.
005     *  The ASF licenses this file to You under the Apache License, Version 2.0
006     *  (the "License"); you may not use this file except in compliance with
007     *  the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    package org.apache.geronimo.management.stats;
018    
019    import javax.management.j2ee.statistics.BoundedRangeStatistic;
020    import javax.management.j2ee.statistics.CountStatistic;
021    import javax.management.j2ee.statistics.JVMStats;
022    
023    /**
024     * Geronimo implementation of the JSR-77 JVMStats interface.
025     *
026     * @version $Rev: 706640 $ $Date: 2008-10-21 14:44:05 +0000 (Tue, 21 Oct 2008) $
027     */
028    public class JVMStatsImpl extends StatsImpl implements JVMStats {
029        private final CountStatisticImpl upTime;
030        private final BoundedRangeStatisticImpl heapSize;
031    
032        public JVMStatsImpl() {
033            upTime = new CountStatisticImpl("JVM Up Time", StatisticImpl.UNIT_TIME_MILLISECOND,
034                    "The length of time that the JVM has been running", 0);
035            heapSize = new BoundedRangeStatisticImpl("JVM Heap Size", StatisticImpl.UNIT_MEMORY_BYTES,
036                    "The memory usage of the JVM");
037            addStat("UpTime", upTime);
038            addStat("HeapSize", heapSize);
039        }
040    
041        public CountStatistic getUpTime() {
042            return upTime;
043        }
044    
045        public BoundedRangeStatistic getHeapSize() {
046            return heapSize;
047        }
048    
049        /**
050         * Used to access the native implementation in order to call setters
051         */
052        public CountStatisticImpl getUpTimeImpl() {
053            return upTime;
054        }
055    
056        /**
057         * Used to access the native implementation in order to call setters
058         */
059        public BoundedRangeStatisticImpl getHeapSizeImpl() {
060            return heapSize;
061        }
062    }