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| 1 | +// The contents of this file are subject to the Mozilla Public License |
| 2 | +// Version 1.1 (the "License"); you may not use this file except in |
| 3 | +// compliance with the License. You may obtain a copy of the License at |
| 4 | +// http://www.mozilla.org/MPL/ |
| 5 | +// |
| 6 | +// Software distributed under the License is distributed on an "AS IS" |
| 7 | +// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
| 8 | +// License for the specific language governing rights and limitations |
| 9 | +// under the License. |
| 10 | +// |
| 11 | +// The Original Code is RabbitMQ. |
| 12 | +// |
| 13 | +// The Initial Developers of the Original Code are LShift Ltd, |
| 14 | +// Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. |
| 15 | +// |
| 16 | +// Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, |
| 17 | +// Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd |
| 18 | +// are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial |
| 19 | +// Technologies LLC, and Rabbit Technologies Ltd. |
| 20 | +// |
| 21 | +// Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift |
| 22 | +// Ltd. Portions created by Cohesive Financial Technologies LLC are |
| 23 | +// Copyright (C) 2007-2010 Cohesive Financial Technologies |
| 24 | +// LLC. Portions created by Rabbit Technologies Ltd are Copyright |
| 25 | +// (C) 2007-2010 Rabbit Technologies Ltd. |
| 26 | +// |
| 27 | +// All Rights Reserved. |
| 28 | +// |
| 29 | +// Contributor(s): ______________________________________. |
| 30 | +// |
| 31 | +package com.rabbitmq.client.test.server; |
| 32 | + |
| 33 | +import java.io.IOException; |
| 34 | + |
| 35 | +import com.rabbitmq.client.Channel; |
| 36 | +import com.rabbitmq.client.Connection; |
| 37 | +import com.rabbitmq.client.QueueingConsumer; |
| 38 | +import com.rabbitmq.client.test.BrokerTestCase; |
| 39 | +import com.rabbitmq.tools.Host; |
| 40 | + |
| 41 | +public class MemoryAlarms extends BrokerTestCase { |
| 42 | + |
| 43 | + private static final String Q = "Restart"; |
| 44 | + |
| 45 | + private Connection connection2; |
| 46 | + private Channel channel2; |
| 47 | + |
| 48 | + @Override |
| 49 | + protected void setUp() throws IOException { |
| 50 | + connectionFactory.setRequestedHeartbeat(1); |
| 51 | + super.setUp(); |
| 52 | + if (connection2 == null) { |
| 53 | + connection2 = connectionFactory.newConnection(); |
| 54 | + } |
| 55 | + channel2 = connection2.createChannel(); |
| 56 | + } |
| 57 | + |
| 58 | + @Override |
| 59 | + protected void tearDown() throws IOException { |
| 60 | + if (channel2 != null) { |
| 61 | + channel2.abort(); |
| 62 | + channel2 = null; |
| 63 | + } |
| 64 | + if (connection2 != null) { |
| 65 | + connection2.abort(); |
| 66 | + connection2 = null; |
| 67 | + } |
| 68 | + super.tearDown(); |
| 69 | + connectionFactory.setRequestedHeartbeat(0); |
| 70 | + } |
| 71 | + |
| 72 | + @Override |
| 73 | + protected void createResources() throws IOException { |
| 74 | + channel.queueDeclare(Q, false, false, false, null); |
| 75 | + } |
| 76 | + |
| 77 | + @Override |
| 78 | + protected void releaseResources() throws IOException { |
| 79 | + channel.queueDelete(Q); |
| 80 | + } |
| 81 | + |
| 82 | + protected void setMemoryAlarm() throws IOException, InterruptedException { |
| 83 | + Host.executeCommand("cd ../rabbitmq-test; make set-memory-alarm"); |
| 84 | + } |
| 85 | + |
| 86 | + protected void clearMemoryAlarm() throws IOException, InterruptedException { |
| 87 | + Host.executeCommand("cd ../rabbitmq-test; make clear-memory-alarm"); |
| 88 | + } |
| 89 | + |
| 90 | + public void testFlowControl() throws IOException, InterruptedException { |
| 91 | + basicPublishVolatile(Q); |
| 92 | + setMemoryAlarm(); |
| 93 | + // non-publish actions only after an alarm should be fine |
| 94 | + assertNotNull(basicGet(Q)); |
| 95 | + QueueingConsumer c = new QueueingConsumer(channel); |
| 96 | + String consumerTag = channel.basicConsume(Q, true, c); |
| 97 | + // publishes after an alarm should not go through |
| 98 | + basicPublishVolatile(Q); |
| 99 | + // the publish is async, so this is racy. This also tests we don't die |
| 100 | + // by heartbeat (3x heartbeat interval + epsilon) |
| 101 | + assertNull(c.nextDelivery(3100)); |
| 102 | + // once the alarm has cleared the publishes should go through |
| 103 | + clearMemoryAlarm(); |
| 104 | + assertNotNull(c.nextDelivery()); |
| 105 | + // everything should be back to normal |
| 106 | + channel.basicCancel(consumerTag); |
| 107 | + basicPublishVolatile(Q); |
| 108 | + assertNotNull(basicGet(Q)); |
| 109 | + } |
| 110 | + |
| 111 | +} |
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