content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.activemq.artemis.tests.performance.sends;
  
  import javax.jms.Connection;
  import javax.jms.Message;
  import javax.jms.MessageConsumer;
  import javax.jms.Queue;
  import javax.jms.Session;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.List;
  
  import org.apache.activemq.artemis.tests.extensions.parameterized.ParameterizedTestExtension;
  import org.apache.activemq.artemis.tests.extensions.parameterized.Parameters;
  import org.junit.jupiter.api.TestTemplate;
  import org.junit.jupiter.api.extension.ExtendWith;
  
  @ExtendWith(ParameterizedTestExtension.class)
  public class ClientACKPerf extends AbstractSendReceivePerfTest {
  
     @Parameters(name = "batchSize={0}")
     public static Collection<Object[]> data() {
        List<Object[]> list = Arrays.asList(new Object[][]{{1}, {2000}});
  
        System.out.println("Size = " + list.size());
        return list;
     }
  
     public ClientACKPerf(int batchSize) {
        super();
        this.batchSize = batchSize;
     }
  
     public final int batchSize;
  
     @Override
     protected void consumeMessages(Connection c, String qName) throws Exception {
        int mode = 0;
        mode = Session.CLIENT_ACKNOWLEDGE;
  
        System.out.println("Receiver: Using PRE-ACK mode");
  
        Session s = c.createSession(false, mode);
        Queue q = s.createQueue(qName);
        MessageConsumer consumer = s.createConsumer(q, null, false);
  
        c.start();
  
        Message m = null;
  
        long totalTimeACKTime = 0;
  
        long start = System.currentTimeMillis();
  
        long nmessages = 0;
        long timeout = System.currentTimeMillis() + 60 * 1000;
        while (timeout > System.currentTimeMillis()) {
           m = consumer.receive(5000);
           afterConsume(m);
  
           if (m == null) {
              throw new Exception("Failed with m = null");
           }
  
           if (nmessages++ % batchSize == 0) {
              long startACK = System.nanoTime();
              m.acknowledge();
              long endACK = System.nanoTime();
              totalTimeACKTime += (endACK - startACK);
           }
  
           if (nmessages % 10000 == 0) {
              printMsgsSec(start, nmessages, totalTimeACKTime);
           }
        }
  
        printMsgsSec(start, nmessages, totalTimeACKTime);
     }
  
     protected void printMsgsSec(final long start, final double nmessages, final double totalTimeACKTime) {
  
        long end = System.currentTimeMillis();
        double elapsed = ((double) end - (double) start) / 1000f;
  
        double messagesPerSecond = nmessages / elapsed;
        double nAcks = nmessages / batchSize;
  
        System.out.println("batchSize=" + batchSize + ", numberOfMessages=" + nmessages + ", elapsedTime=" + elapsed + " msgs/sec= " + messagesPerSecond + ",totalTimeAcking=" + String.format("%10.4f", totalTimeACKTime) +
                              ", avgACKTime=" + String.format("%10.4f", (totalTimeACKTime / nAcks)));
  
     }
  
     @TestTemplate
     public void testSendReceive() throws Exception {
        super.doSendReceiveTestImpl();
     }
  }
  