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   * 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.integration.client;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import javax.jms.ConnectionFactory;
  import javax.jms.JMSException;
  
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.junit.jupiter.api.Test;
  
  public class InitialConnectionTest extends ActiveMQTestBase {
  
     @Test
     public void testInitialInfinite() throws Exception {
        AtomicInteger errors = new AtomicInteger(0);
  
        ActiveMQServer server = createServer(false, true);
  
        Thread t = new Thread(() -> {
           try {
              Thread.sleep(500);
              server.start();
           } catch (Throwable e) {
              e.printStackTrace();
              errors.incrementAndGet();
           }
        });
        t.start();
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("(tcp://localhost:61618,tcp://localhost:61616,tcp://localhost:61610)?ha=true&retryInterval=100&retryIntervalMultiplier=1.0&reconnectAttempts=-1&initialConnectAttempts=-1&useTopologyForLoadBalancing=true");
        connectionFactory.createConnection().close();
        connectionFactory.close();
  
  
        t.join();
  
        assertEquals(0, errors.get());
     }
  
  
     @Test
     public void testNegativeMaxTries() throws Exception {
  
        long timeStart = System.currentTimeMillis();
        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("(tcp://localhost:61618,tcp://localhost:61616,tcp://localhost:61610)?ha=true&retryInterval=100&retryIntervalMultiplier=1.0&reconnectAttempts=-1&initialConnectAttempts=2&useTopologyForLoadBalancing=true");
        boolean failed = false;
        try {
           connectionFactory.createConnection();
        } catch (JMSException e) {
           // expected
           failed = true;
        }
        assertTrue(failed);
        long timeEnd = System.currentTimeMillis();
        assertTrue(timeEnd - timeStart >= 500, "3 connectors, at 100 milliseconds each try, initialConnectAttempt=2, it should have waited at least 600 (- 100 from the last try that we don't actually wait, just throw ) milliseconds");
     }
  
     @Test
     public void testRetryIntervalMultiplier() {
        int interval = 100;
        double multiplier = 10.0;
        int attempts = 3;
        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61610?retryInterval=" + interval + "&retryIntervalMultiplier=" + multiplier + "&initialConnectAttempts=" + attempts);
        long timeStart = System.currentTimeMillis();
        try {
           connectionFactory.createConnection();
           fail("Creating connection here should have failed");
        } catch (JMSException e) {
           // expected
        }
        long duration = System.currentTimeMillis() - timeStart;
        long toWait = 1100;
        assertTrue(duration >= toWait, "Waited only " + duration + "ms, but should have waiting " + toWait);
     }
  
     @Test
     public void testMaxRetryInterval() {
        int interval = 100;
        double multiplier = 50.0;
        int attempts = 3;
        int maxInterval = 1000;
        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61610?retryInterval=" + interval + "&retryIntervalMultiplier=" + multiplier + "&initialConnectAttempts=" + attempts + "&maxRetryInterval=" + maxInterval);
        long timeStart = System.currentTimeMillis();
        try {
           connectionFactory.createConnection();
           fail("Creating connection here should have failed");
        } catch (JMSException e) {
           // expected
        }
        long duration = System.currentTimeMillis() - timeStart;
        long toWait = 1100;
        assertTrue(duration >= toWait, "Waited only " + duration + "ms, but should have waited " + toWait);
        assertTrue(duration <= toWait + 500, "Waited " + duration + "ms, but should have only waited " + (toWait + 500));
     }
  }
  