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.commons.monitoring.repositories;
018    
019    import org.apache.commons.monitoring.Role;
020    import org.apache.commons.monitoring.configuration.Configuration;
021    import org.apache.commons.monitoring.counters.Counter;
022    import org.apache.commons.monitoring.gauges.DefaultGaugeManager;
023    import org.apache.commons.monitoring.gauges.Gauge;
024    import org.apache.commons.monitoring.stopwatches.CounterStopWatch;
025    import org.apache.commons.monitoring.stopwatches.StopWatch;
026    import org.apache.commons.monitoring.store.DataStore;
027    import org.apache.commons.monitoring.store.GaugeValuesRequest;
028    
029    import java.util.Iterator;
030    import java.util.Map;
031    
032    public class DefaultRepository implements Repository {
033        private final DataStore dataStore;
034        private final DefaultGaugeManager gaugeManager;
035    
036        public DefaultRepository() {
037            this.dataStore = Configuration.newInstance(DataStore.class);
038            this.gaugeManager = new DefaultGaugeManager(dataStore);
039        }
040    
041        @Configuration.Destroying
042        public void stopGaugeTimers() {
043            gaugeManager.stop();
044        }
045    
046        @Override
047        public Counter getCounter(final Counter.Key key) {
048            return dataStore.getOrCreateCounter(key);
049        }
050    
051        @Override
052        public void clear() {
053            dataStore.clearCounters();
054        }
055    
056        @Override
057        public StopWatch start(final Counter monitor) {
058            return new CounterStopWatch(monitor);
059        }
060    
061        @Override
062        public Iterator<Counter> iterator() {
063            return dataStore.getCounters().iterator();
064        }
065    
066        @Override
067        public Map<Long, Double> getGaugeValues(final long start, final long end, final Role role) {
068            return dataStore.getGaugeValues(new GaugeValuesRequest(start, end, role));
069        }
070    
071        @Override
072        public void addGauge(final Gauge gauge) {
073            gaugeManager.addGauge(gauge);
074        }
075    
076        @Override
077        public void stopGauge(final Role role) {
078            gaugeManager.stopGauge(role);
079        }
080    }