PriorityNetworkDispatchPolicyTest.java

/**
 * 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.
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package org.apache.activemq.broker.policy;

import java.util.ArrayList;
import java.util.List;

import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.ConnectionContext;
import org.apache.activemq.broker.region.Subscription;
import org.apache.activemq.broker.region.TopicSubscription;
import org.apache.activemq.broker.region.policy.PriorityNetworkDispatchPolicy;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQMessage;
import org.apache.activemq.command.ConsumerId;
import org.apache.activemq.command.ConsumerInfo;
import org.apache.activemq.command.MessageId;
import org.apache.activemq.usage.SystemUsage;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.assertEquals;

public class PriorityNetworkDispatchPolicyTest {

   PriorityNetworkDispatchPolicy underTest = new PriorityNetworkDispatchPolicy();
   SystemUsage usageManager = new SystemUsage();
   ConsumerInfo info = new ConsumerInfo();
   ActiveMQMessage node = new ActiveMQMessage();
   ConsumerId id = new ConsumerId();
   ConnectionContext context = new ConnectionContext();
   BrokerService brokerService = new BrokerService();

   @Before
   public void init() throws Exception {
      info.setDestination(ActiveMQDestination.createDestination("test", ActiveMQDestination.TOPIC_TYPE));
      info.setConsumerId(id);
      info.setNetworkSubscription(true);
      info.setNetworkConsumerPath(new ConsumerId[]{id});
      node.setMessageId(new MessageId("test:1:1:1:1"));
   }

   @After
   public void stopBroker() throws Exception {
      brokerService.stop();
   }

   @Test
   public void testRemoveLowerPriorityDup() throws Exception {

      List<Subscription> consumers = new ArrayList<>();

      for (int i = 0; i < 3; i++) {
         ConsumerInfo instance = info.copy();
         instance.setPriority((byte) i);
         consumers.add(new TopicSubscription(brokerService.getBroker(), context, instance, usageManager));
      }
      underTest.dispatch(node, null, consumers);

      long count = 0;
      for (Subscription consumer : consumers) {
         count += consumer.getEnqueueCounter();
      }
      assertEquals("only one sub got message", 1, count);
   }
}