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.activemq.tool.sampler;
018    
019    import java.util.ArrayList;
020    import java.util.Iterator;
021    import java.util.List;
022    
023    import org.apache.activemq.tool.reports.AbstractPerfReportWriter;
024    
025    public class ThroughputSamplerTask extends AbstractPerformanceSampler {
026    
027        private final Object mutex = new Object();
028        private List<MeasurableClient> clients = new ArrayList<MeasurableClient>();
029    
030        public void registerClient(MeasurableClient client) {
031            synchronized (mutex) {
032                clients.add(client);
033            }
034        }
035    
036        public void sampleData() {
037            for (Iterator<MeasurableClient> i = clients.iterator(); i.hasNext();) {
038                MeasurableClient client = i.next();
039                if (perfReportWriter != null) {
040                    perfReportWriter.writeCsvData(AbstractPerfReportWriter.REPORT_PLUGIN_THROUGHPUT, "index=" + sampleIndex + ",clientName=" + client.getClientName() + ",throughput="
041                                                                                                     + client.getThroughput());
042                }
043                client.reset();
044            }
045        }
046    
047        protected void onSamplerStart() {
048            // Reset the throughput of the clients
049            for (Iterator<MeasurableClient> i = clients.iterator(); i.hasNext();) {
050                MeasurableClient client = i.next();
051                client.reset();
052            }
053        }
054    }