1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * 
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * The contents of this file are subject to the terms of either the Universal Permissive License
   7  * v 1.0 as shown at http://oss.oracle.com/licenses/upl
   8  *
   9  * or the following license:
  10  *
  11  * Redistribution and use in source and binary forms, with or without modification, are permitted
  12  * provided that the following conditions are met:
  13  * 
  14  * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
  15  * and the following disclaimer.
  16  * 
  17  * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
  18  * conditions and the following disclaimer in the documentation and/or other materials provided with
  19  * the distribution.
  20  * 
  21  * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
  22  * endorse or promote products derived from this software without specific prior written permission.
  23  * 
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  26  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  31  * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33 package org.openjdk.jmc.rjmx.test.subscription;
  34 
  35 import static org.junit.Assert.assertNotNull;
  36 
  37 import org.junit.Test;
  38 
  39 import org.openjdk.jmc.rjmx.IConnectionHandle;
  40 import org.openjdk.jmc.rjmx.IServerHandle;
  41 import org.openjdk.jmc.rjmx.subscription.IMRIValueListener;
  42 import org.openjdk.jmc.rjmx.subscription.ISubscriptionService;
  43 import org.openjdk.jmc.rjmx.subscription.MRI;
  44 import org.openjdk.jmc.rjmx.subscription.MRIValueEvent;
  45 import org.openjdk.jmc.rjmx.subscription.MRI.Type;
  46 import org.openjdk.jmc.rjmx.test.LocalRJMXTestToolkit;
  47 import org.openjdk.jmc.rjmx.test.RjmxTestCase;
  48 import org.openjdk.jmc.rjmx.test.testutil.TestToolkit;
  49 
  50 public class MultipleAttributeSubscriptionTest extends RjmxTestCase implements IMRIValueListener {
  51 
  52         /**
  53          * Tests acquiring several subscriptions. Ensures that subscriptions are properly created and
  54          * that events are properly received.
  55          */
  56         @Test
  57         public void testMultipleSubscriptions() throws Exception {
  58                 IConnectionHandle handle = IServerHandle.create(LocalRJMXTestToolkit.createDefaultDescriptor()).connect("Test"); //$NON-NLS-1$
  59                 ISubscriptionService service = handle.getServiceOrThrow(ISubscriptionService.class);
  60 
  61                 MRI cpuAttributeDescriptor = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem", "SystemCpuLoad"); //$NON-NLS-1$ //$NON-NLS-2$
  62                 service.addMRIValueListener(cpuAttributeDescriptor, this);
  63                 MRI loadAttributeDescriptor = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem", "ProcessCpuLoad"); //$NON-NLS-1$ //$NON-NLS-2$
  64                 service.addMRIValueListener(loadAttributeDescriptor, this);
  65 
  66                 synchronized (this) {
  67                         for (int i = 0; i < 8; i++) {
  68                                 wait(8000);
  69                         }
  70                 }
  71 
  72                 assertNotNull(service.getLastMRIValueEvent(cpuAttributeDescriptor));
  73                 assertNotNull(service.getLastMRIValueEvent(loadAttributeDescriptor));
  74                 handle.close();
  75         }
  76 
  77         @Override
  78         public void valueChanged(MRIValueEvent event) {
  79                 synchronized (this) {
  80                         TestToolkit.println(event);
  81                         notify();
  82                 }
  83         }
  84 }