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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.
*
*/
using System;
using System.Text;
using System.Threading;
using log4net;
using NUnit.Framework;
using Apache.Qpid.Messaging;
using Apache.Qpid.Client.Qms;
using Apache.Qpid.Client;
namespace Apache.Qpid.Integration.Tests.testcases
{
/// ProducerMultiConsumerTest provides some tests for one producer and multiple consumers.
///
/// <p><table id="crc"><caption>CRC Card</caption>
/// <tr><th> Responsibilities <th> Collaborations
/// <tr><td> Check that all consumers on a topic each receive all message on it.
/// <tr><td> Check that consumers on the same queue receive each message once accross all consumers.
/// </table>
/// </summary>
[TestFixture, Category("Integration")]
public class ProducerMultiConsumerTest : BaseMessagingTestFixture
{
private static readonly ILog _logger = LogManager.GetLogger(typeof(ProducerMultiConsumerTest));
/// <summary>Base name for the routing key used for this test (made unique by adding in test id).</summary>
private const string TEST_ROUTING_KEY = "ProducerMultiConsumerTest";
/// <summary>The number of consumers to test.</summary>
private const int CONSUMER_COUNT = 5;
/// <summary>The number of test messages to send.</summary>
private const int MESSAGE_COUNT = 10;
/// <summary>Monitor used to signal succesfull receipt of all test messages.</summary>
AutoResetEvent _finishedEvent;
/// <summary>Used to count test messages received so far.</summary>
private int _messageReceivedCount;
/// <summary>Used to hold the expected number of messages to receive.</summary>
private int expectedMessageCount;
/// <summary>Flag used to indicate that all messages really were received, and that the test did not just time out. </summary>
private bool allReceived;
/// <summary> Creates one producing end-point and many consuming end-points connected on a topic. </summary>
[SetUp]
public override void Init()
{
base.Init();
// Reset all test counts and flags.
_messageReceivedCount = 0;
allReceived = false;
_finishedEvent = new AutoResetEvent(false);
}
/// <summary> Cleans up all test end-points. </summary>
[TearDown]
public override void Shutdown()
{
try
{
// Close all end points for producer and consumers.
// Producer is on 0, and consumers on 1 .. n, so loop is from 0 to n inclusive.
for (int i = 0; i <= CONSUMER_COUNT; i++)
{
CloseEndPoint(i);
}
}
finally
{
base.Shutdown();
}
}
/// <summary> Check that all consumers on a topic each receive all message on it. </summary>
[Test]
public void AllConsumerReceiveAllMessagesOnTopic()
{
// Create end-points for all the consumers in the test.
for (int i = 1; i <= CONSUMER_COUNT; i++)
{
SetUpEndPoint(i, false, true, TEST_ROUTING_KEY + testId, AcknowledgeMode.AutoAcknowledge, false, ExchangeNameDefaults.TOPIC,
true, false, null);
testConsumer[i].OnMessage += new MessageReceivedDelegate(OnMessage);
}
// Create an end-point to publish to the test topic.
SetUpEndPoint(0, true, false, TEST_ROUTING_KEY + testId, AcknowledgeMode.AutoAcknowledge, false, ExchangeNameDefaults.TOPIC,
true, false, null);
expectedMessageCount = (MESSAGE_COUNT * CONSUMER_COUNT);
for (int i = 0; i < MESSAGE_COUNT; i++)
{
testProducer[0].Send(testChannel[0].CreateTextMessage("A"));
}
_finishedEvent.WaitOne(new TimeSpan(0, 0, 0, 30), false);
// Check that all messages really were received.
Assert.IsTrue(allReceived, "All messages were not received, only got " + _messageReceivedCount + " but wanted " + expectedMessageCount);
}
/// <summary> Check that consumers on the same queue receive each message once accross all consumers. </summary>
[Test]
public void AllConsumerReceiveAllMessagesOnDirect()
{
// Create end-points for all the consumers in the test.
for (int i = 1; i <= CONSUMER_COUNT; i++)
{
SetUpEndPoint(i, false, true, TEST_ROUTING_KEY + testId, AcknowledgeMode.AutoAcknowledge, false, ExchangeNameDefaults.DIRECT,
true, false, null);
testConsumer[i].OnMessage += new MessageReceivedDelegate(OnMessage);
}
// Create an end-point to publish to the test topic.
SetUpEndPoint(0, true, false, TEST_ROUTING_KEY + testId, AcknowledgeMode.AutoAcknowledge, false, ExchangeNameDefaults.DIRECT,
true, false, null);
expectedMessageCount = (MESSAGE_COUNT * CONSUMER_COUNT);
for (int i = 0; i < MESSAGE_COUNT; i++)
{
testProducer[0].Send(testChannel[0].CreateTextMessage("A"));
}
_finishedEvent.WaitOne(new TimeSpan(0, 0, 0, 30), false);
// Check that all messages really were received.
Assert.IsTrue(allReceived, "All messages were not received, only got: " + _messageReceivedCount + " but wanted " + expectedMessageCount);
}
/// <summary> Atomically increments the message count on every message, and signals once all messages in the test are received. </summary>
public void OnMessage(IMessage m)
{
int newCount = Interlocked.Increment(ref _messageReceivedCount);
if (newCount >= expectedMessageCount)
{
allReceived = true;
_finishedEvent.Set();
}
}
}
}
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