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.transport.amqp.interop;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  import java.lang.reflect.UndeclaredThrowableException;
  import java.util.concurrent.TimeUnit;
  
  import javax.management.InstanceNotFoundException;
  import javax.management.ObjectName;
  import javax.management.openmbean.CompositeData;
  import javax.management.openmbean.TabularData;
  
  import org.apache.activemq.broker.BrokerService;
  import org.apache.activemq.broker.jmx.AbortSlowConsumerStrategyViewMBean;
  import org.apache.activemq.broker.jmx.QueueViewMBean;
  import org.apache.activemq.broker.region.policy.AbortSlowAckConsumerStrategy;
  import org.apache.activemq.broker.region.policy.PolicyEntry;
  import org.apache.activemq.broker.region.policy.PolicyMap;
  import org.apache.activemq.transport.amqp.client.AmqpClient;
  import org.apache.activemq.transport.amqp.client.AmqpClientTestSupport;
  import org.apache.activemq.transport.amqp.client.AmqpConnection;
  import org.apache.activemq.transport.amqp.client.AmqpMessage;
  import org.apache.activemq.transport.amqp.client.AmqpReceiver;
  import org.apache.activemq.transport.amqp.client.AmqpSession;
  import org.apache.activemq.util.Wait;
  import org.junit.Test;
  
  /**
   * Test the handling of consumer abort when the AbortSlowAckConsumerStrategy is used.
   */
  public class AmqpSlowReceiverTest extends AmqpClientTestSupport {
  
      private final long DEFAULT_CHECK_PERIOD = 1000;
      private final long DEFAULT_MAX_SLOW_DURATION = 3000;
  
      private AbortSlowAckConsumerStrategy strategy;
  
      @Test(timeout = 60 * 1000)
      public void testSlowConsumerIsAborted() throws Exception {
  
          AmqpClient client = createAmqpClient();
          AmqpConnection connection = trackConnection(client.connect());
          AmqpSession session = connection.createSession();
          final AmqpReceiver receiver = session.createReceiver("queue://" + getTestName());
          receiver.flow(100);
  
          assertEquals(1, brokerService.getAdminView().getQueueSubscribers().length);
  
          sendMessages(getTestName(), 100, false);
  
          AmqpMessage message = receiver.receive(5, TimeUnit.SECONDS);
          assertNotNull(message);
          message.accept();
  
          assertTrue("Receiver should be closed", Wait.waitFor(new Wait.Condition() {
  
              @Override
              public boolean isSatisified() throws Exception {
                  return receiver.isClosed();
              }
          }));
  
          assertEquals(0, brokerService.getAdminView().getQueueSubscribers().length);
      }
  
      @Test
      public void testSlowConsumerIsAbortedViaJmx() throws Exception {
          strategy.setMaxSlowDuration(60*1000); // so jmx does the abort
  
          AmqpClient client = createAmqpClient();
          AmqpConnection connection = trackConnection(client.connect());
          AmqpSession session = connection.createSession();
          final AmqpReceiver receiver = session.createReceiver("queue://" + getTestName());
          receiver.flow(100);
  
          sendMessages(getTestName(), 100, false);
  
          AmqpMessage message = receiver.receive(5, TimeUnit.SECONDS);
          assertNotNull(message);
          message.accept();
  
          QueueViewMBean queue = getProxyToQueue(getTestName());
          ObjectName slowConsumerPolicyMBeanName = queue.getSlowConsumerStrategy();
          assertNotNull(slowConsumerPolicyMBeanName);
  
          AbortSlowConsumerStrategyViewMBean abortPolicy = (AbortSlowConsumerStrategyViewMBean)
                  brokerService.getManagementContext().newProxyInstance(slowConsumerPolicyMBeanName, AbortSlowConsumerStrategyViewMBean.class, true);
  
          TimeUnit.SECONDS.sleep(6);
  
          TabularData slowOnes = abortPolicy.getSlowConsumers();
          assertEquals("one slow consumers", 1, slowOnes.size());
  
          LOG.info("slow ones:"  + slowOnes);
  
          CompositeData slowOne = (CompositeData) slowOnes.values().iterator().next();
          LOG.info("Slow one: " + slowOne);
  
          assertTrue("we have an object name", slowOne.get("subscription") instanceof ObjectName);
          abortPolicy.abortConsumer((ObjectName)slowOne.get("subscription"));
  
          assertTrue("Receiver should be closed", Wait.waitFor(new Wait.Condition() {
  
              @Override
              public boolean isSatisified() throws Exception {
                  return receiver.isClosed();
              }
          }));
  
          slowOnes = abortPolicy.getSlowConsumers();
          assertEquals("no slow consumers left", 0, slowOnes.size());
  
          // verify mbean gone with destination
          brokerService.getAdminView().removeQueue(getTestName());
  
          try {
              abortPolicy.getSlowConsumers();
              fail("expect not found post destination removal");
          } catch(UndeclaredThrowableException expected) {
              assertTrue("correct exception: " + expected.getCause(),
                      expected.getCause() instanceof InstanceNotFoundException);
          }
      }
  
      @Override
      protected boolean isUseOpenWireConnector() {
          return true;
      }
  
      @Override
      protected void performAdditionalConfiguration(BrokerService brokerService) throws Exception {
          strategy = new AbortSlowAckConsumerStrategy();
          strategy.setAbortConnection(false);
          strategy.setCheckPeriod(DEFAULT_CHECK_PERIOD);
          strategy.setMaxSlowDuration(DEFAULT_MAX_SLOW_DURATION);
          strategy.setMaxTimeSinceLastAck(DEFAULT_MAX_SLOW_DURATION);
  
          PolicyEntry policy = new PolicyEntry();
          policy.setSlowConsumerStrategy(strategy);
          policy.setQueuePrefetch(10);
          policy.setTopicPrefetch(10);
  
          PolicyMap pMap = new PolicyMap();
          pMap.setDefaultEntry(policy);
  
          brokerService.setDestinationPolicy(pMap);
      }
  }
  