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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.assertTrue;
  
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.activemq.artemis.api.core.Message;
  import org.apache.activemq.artemis.api.core.QueueConfiguration;
  import org.apache.activemq.artemis.api.core.SimpleString;
  import org.apache.activemq.artemis.api.core.client.ClientMessage;
  import org.apache.activemq.artemis.api.core.client.ClientProducer;
  import org.apache.activemq.artemis.api.core.client.ClientSession;
  import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
  import org.apache.activemq.artemis.api.core.client.SendAcknowledgementHandler;
  import org.apache.activemq.artemis.api.core.client.ServerLocator;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.tests.util.Wait;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  public class SessionSendAcknowledgementHandlerTest extends ActiveMQTestBase {
  
     private ActiveMQServer server;
  
     private final SimpleString address = SimpleString.of("address");
  
     private final SimpleString queueName = SimpleString.of("queue");
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
  
        server = createServer(false);
        server.start();
     }
  
     @Test
     public void testSetInvalidSendACK() throws Exception {
        ServerLocator locator = createInVMNonHALocator();
  
        locator.setConfirmationWindowSize(-1);
  
        ClientSessionFactory csf = createSessionFactory(locator);
        ClientSession session = csf.createSession(null, null, false, true, true, false, 1);
  
        boolean failed = false;
        try {
           session.setSendAcknowledgementHandler(message -> {
           });
        } catch (Throwable expected) {
           failed = true;
        }
  
        assertTrue(failed, "Expected a failure on setting ACK Handler");
  
        session.createQueue(QueueConfiguration.of(queueName).setAddress(address).setDurable(false));
     }
  
     @Test
     public void testSendAcknowledgementsNoWindowSize() throws Exception {
        verifySendAcknowledgements(0);
     }
  
     @Test
     public void testSendAcknowledgements() throws Exception {
        verifySendAcknowledgements(1024);
     }
  
     @Test
     public void testSendAcknowledgementsNoWindowSizeProducerOnly() throws Exception {
        verifySendAcknowledgementsProducerOnly(0);
     }
  
     @Test
     public void testSendAcknowledgementsProducer() throws Exception {
        verifySendAcknowledgementsProducerOnly(1024);
     }
  
     public void verifySendAcknowledgements(int windowSize) throws Exception {
        ServerLocator locator = createInVMNonHALocator();
  
        locator.setConfirmationWindowSize(windowSize);
  
        ClientSessionFactory csf = createSessionFactory(locator);
        ClientSession session = csf.createSession(null, null, false, true, true, false, 1);
  
        session.createQueue(QueueConfiguration.of(queueName).setAddress(address).setDurable(false));
  
        ClientProducer prod = session.createProducer(address);
  
        final int numMessages = 1000;
  
        LatchAckHandler handler = new LatchAckHandler("session", new CountDownLatch(numMessages));
  
        LatchAckHandler producerHandler = new LatchAckHandler("producer", new CountDownLatch(numMessages));
  
        session.setSendAcknowledgementHandler(handler);
  
        for (int i = 0; i < numMessages; i++) {
           ClientMessage msg = session.createMessage(false);
           ClientMessage msg2 = session.createMessage(false);
  
           prod.send(msg);
           prod.send(address, msg2, producerHandler);
        }
  
        assertTrue(handler.latch.await(5, TimeUnit.SECONDS), "session must have acked, " + handler);
        assertTrue(producerHandler.latch.await(5, TimeUnit.SECONDS), "producer specific handler must have acked, " + producerHandler);
     }
  
     public void verifySendAcknowledgementsProducerOnly(int windowSize) throws Exception {
        ServerLocator locator = createInVMNonHALocator();
  
        locator.setConfirmationWindowSize(windowSize);
  
        ClientSessionFactory csf = createSessionFactory(locator);
        ClientSession session = csf.createSession(null, null, false, true, true, false, 1);
  
        session.createQueue(QueueConfiguration.of(queueName).setAddress(address).setDurable(false));
  
        ClientProducer prod = session.createProducer(address);
  
        final int numMessages = 1000;
  
        LatchAckHandler producerHandler = new LatchAckHandler("producer", new CountDownLatch(numMessages));
  
        for (int i = 0; i < numMessages; i++) {
           ClientMessage msg2 = session.createMessage(false);
  
           prod.send(address, msg2, producerHandler);
        }
  
        assertTrue(producerHandler.latch.await(5, TimeUnit.SECONDS), "producer specific handler must have acked, " + producerHandler);
     }
  
     @Test
     public void testHandlerOnSend() throws Exception {
        final int MSG_COUNT = 750;
        ServerLocator locator = createInVMNonHALocator();
        locator.setConfirmationWindowSize(256);
  
        ClientSessionFactory factory = locator.createSessionFactory();
        ClientSession session = factory.createSession();
        ClientProducer producer = session.createProducer(address);
        final AtomicInteger count = new AtomicInteger(0);
        for (int i = 0; i < MSG_COUNT; i++) {
           ClientMessage message = session.createMessage(true);
           producer.send(message, message1 -> count.incrementAndGet());
        }
        Wait.assertEquals(MSG_COUNT, () -> count.get(), 2000, 100);
     }
  
     @Test
     public void testHandlerOnSendWithAnonymousProducer() throws Exception {
        final int MSG_COUNT = 750;
        ServerLocator locator = createInVMNonHALocator();
        locator.setConfirmationWindowSize(256);
  
        ClientSessionFactory factory = locator.createSessionFactory();
        ClientSession session = factory.createSession();
        final AtomicInteger count = new AtomicInteger(0);
        ClientProducer producer = session.createProducer();
        for (int i = 0; i < MSG_COUNT; i++) {
           ClientMessage message = session.createMessage(true);
           producer.send(address, message, message1 -> count.incrementAndGet());
        }
        Wait.assertEquals(MSG_COUNT, () -> count.get(), 2000, 100);
     }
  
     @Test
     public void testHandlerOnSession() throws Exception {
        final int MSG_COUNT = 750;
        ServerLocator locator = createInVMNonHALocator();
        locator.setConfirmationWindowSize(256);
  
        ClientSessionFactory factory = locator.createSessionFactory();
        ClientSession session = factory.createSession();
        final AtomicInteger count = new AtomicInteger(0);
        session.setSendAcknowledgementHandler(message1 -> count.incrementAndGet());
        ClientProducer producer = session.createProducer(address);
        for (int i = 0; i < MSG_COUNT; i++) {
           ClientMessage message = session.createMessage(true);
           producer.send(message);
        }
        Wait.assertEquals(MSG_COUNT, () -> count.get(), 2000, 100);
     }
  
     @Test
     public void testHandlerOnSessionWithAnonymousProducer() throws Exception {
        final int MSG_COUNT = 750;
        ServerLocator locator = createInVMNonHALocator();
        locator.setConfirmationWindowSize(256);
  
        ClientSessionFactory factory = locator.createSessionFactory();
        ClientSession session = factory.createSession();
        final AtomicInteger count = new AtomicInteger(0);
        session.setSendAcknowledgementHandler(message1 -> count.incrementAndGet());
        ClientProducer producer = session.createProducer();
        for (int i = 0; i < MSG_COUNT; i++) {
           ClientMessage message = session.createMessage(true);
           producer.send(address, message);
        }
        Wait.assertEquals(MSG_COUNT, () -> count.get(), 2000, 100);
     }
  
     public static final class LatchAckHandler implements SendAcknowledgementHandler {
  
        public CountDownLatch latch;
        private final String name;
  
        public LatchAckHandler(String name, CountDownLatch latch) {
           this.name = name;
           this.latch = latch;
        }
  
        @Override
        public void sendAcknowledged(Message message) {
           latch.countDown();
        }
  
        @Override
        public String toString() {
           return "SendAckHandler(name=" + name + ", latch=" + latch + ")";
        }
     }
  }
  