1 /*
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15 * and the following disclaimer.
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32 */
33 package org.openjdk.jmc.rjmx.test.subscription;
34
35 import static org.junit.Assert.assertNotNull;
36 import static org.junit.Assert.assertTrue;
37 import static org.junit.Assert.fail;
38
39 import org.junit.Before;
40 import org.junit.Test;
41 import org.openjdk.jmc.rjmx.IConnectionHandle;
42 import org.openjdk.jmc.rjmx.IServerHandle;
43 import org.openjdk.jmc.rjmx.subscription.IMRIValueListener;
44 import org.openjdk.jmc.rjmx.subscription.ISubscriptionService;
45 import org.openjdk.jmc.rjmx.subscription.MRI;
46 import org.openjdk.jmc.rjmx.subscription.MRI.Type;
47 import org.openjdk.jmc.rjmx.subscription.MRIValueEvent;
48 import org.openjdk.jmc.rjmx.test.LocalRJMXTestToolkit;
49 import org.openjdk.jmc.rjmx.test.RjmxTestCase;
50 import org.openjdk.jmc.rjmx.test.testutil.TestToolkit;
51
52 @SuppressWarnings("nls")
53 public class AttributeSubscriptionTest extends RjmxTestCase implements IMRIValueListener {
54 private static int TEST_TIMEOUT_TIME = 30000;
55 // private static int TEST_TIMEOUT_TIME = Integer.MAX_VALUE;
56 private int counter;
57
58 @Test
59 public void testSubscribeToCPULoad() throws Exception {
60 IConnectionHandle handle = IServerHandle.create(LocalRJMXTestToolkit.createDefaultDescriptor()).connect("Test");
61 ISubscriptionService subscriptionService = handle.getServiceOrThrow(ISubscriptionService.class);
62 try {
63 MRI attributeDescriptor = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem", "SystemCpuLoad");
64 subscriptionService.addMRIValueListener(attributeDescriptor, this);
65 synchronized (this) {
66 for (int i = 0; i < 4; i++) {
67 this.wait(TEST_TIMEOUT_TIME);
68 }
69 }
70 assertNotNull(subscriptionService.getLastMRIValueEvent(attributeDescriptor));
71 } finally {
72 subscriptionService.removeMRIValueListener(this);
73 handle.close();
74 }
75 assertTrue(getCounter() > 3);
76 }
77
78 @Test
79 public void testGetAttributeSubscriptionOneShot() throws Exception {
80 // Starting up a subscription on a one shot attribute.
81 IConnectionHandle handle = IServerHandle.create(LocalRJMXTestToolkit.createDefaultDescriptor()).connect("Test");
82 ISubscriptionService subscriptionService = handle.getServiceOrThrow(ISubscriptionService.class);
83 try {
84 MRI availableProcessorsAttribute = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem",
85 "AvailableProcessors");
86
87 subscriptionService.addMRIValueListener(availableProcessorsAttribute, this);
88
89 // Since it's a one shot and pretty fast, it may already have been retrieved...
90 if (subscriptionService.getLastMRIValueEvent(availableProcessorsAttribute) == null) {
91 synchronized (this) {
92 for (int i = 0; i < 2; i++) {
93 if (subscriptionService.getLastMRIValueEvent(availableProcessorsAttribute) != null) {
94 break;
95 }
96 wait(TEST_TIMEOUT_TIME);
97 }
98 }
99 }
100 assertNotNull(subscriptionService.getLastMRIValueEvent(availableProcessorsAttribute));
101 assertNotNull(subscriptionService.getLastMRIValueEvent(availableProcessorsAttribute).getValue());
102 } finally {
103 subscriptionService.removeMRIValueListener(this);
104 handle.close();
105 }
106 }
107
108 @Test
109 public void testGetAttributeSubscriptionOne() {
110 try {
111 // Starting up a subscription on a one shot attribute.
112 MRI physicalMemoryUsedAttribute = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem",
113 "UsedPhysicalMemorySize");
114 getAttributeSubscriptionService().addMRIValueListener(physicalMemoryUsedAttribute, this);
115
116 synchronized (this) {
117 wait(TEST_TIMEOUT_TIME);
118 }
119 assertNotNull(getAttributeSubscriptionService().getLastMRIValueEvent(physicalMemoryUsedAttribute));
120 getAttributeSubscriptionService().removeMRIValueListener(this);
121 } catch (Exception e) {
122 e.printStackTrace();
123 fail(e.getMessage());
124 }
125 }
126
127 @Test
128 public void testGetAttributeSubscriptionTwo() {
129 try {
130 // Starting up a subscription on a one shot attribute.
131 MRI tcad = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem", "UsedPhysicalMemorySize");
132 getAttributeSubscriptionService().addMRIValueListener(tcad, this);
133 MRI tstcad = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem", "FreePhysicalMemorySize");
134 getAttributeSubscriptionService().addMRIValueListener(tstcad, this);
135
136 for (int i = 0; i < 7; i++) {
137 synchronized (this) {
138 wait(TEST_TIMEOUT_TIME);
139 if (getAttributeSubscriptionService().getLastMRIValueEvent(tcad) != null
140 && getAttributeSubscriptionService().getLastMRIValueEvent(tstcad) != null) {
141 break;
142 }
143 }
144 Thread.yield();
145 }
146 assertNotNull(getAttributeSubscriptionService().getLastMRIValueEvent(tcad));
147 assertNotNull(getAttributeSubscriptionService().getLastMRIValueEvent(tstcad));
148 getAttributeSubscriptionService().removeMRIValueListener(this);
149 } catch (Exception e) {
150 e.printStackTrace();
151 fail(e.getMessage());
152 }
153 }
154
155 @Test
156 public void testGetSyntheticSubscription() {
157 try {
158 // Starting up a subscription on a one shot attribute.
159 MRI synthad = new MRI(Type.ATTRIBUTE, "java.lang:type=Memory", "HeapMemoryUsagePercent");
160 getAttributeSubscriptionService().addMRIValueListener(synthad, this);
161
162 synchronized (this) {
163 wait(TEST_TIMEOUT_TIME);
164 }
165 assertNotNull(getAttributeSubscriptionService().getLastMRIValueEvent(synthad));
166 getAttributeSubscriptionService().removeMRIValueListener(this);
167 } catch (Exception e) {
168 e.printStackTrace();
169 fail(e.getMessage());
170 }
171 }
172
173 @Test
174 public void testGetSyntheticPhysicalMemSubscription() {
175 try {
176 // Starting up a subscription on a one shot attribute.
177
178 MRI synthad = new MRI(Type.ATTRIBUTE, "java.lang:type=OperatingSystem", "PhysicalMemoryUsagePercent");
179 getAttributeSubscriptionService().addMRIValueListener(synthad, this);
180
181 synchronized (this) {
182 wait(TEST_TIMEOUT_TIME);
183 }
184 assertNotNull(getAttributeSubscriptionService().getLastMRIValueEvent(synthad));
185 getAttributeSubscriptionService().removeMRIValueListener(this);
186
187 } catch (Exception e) {
188 e.printStackTrace();
189 fail(e.getMessage());
190 }
191 }
192
193 @Before
194 public void setUp() throws Exception {
195 counter = 0;
196 }
197
198 @Override
199 public void valueChanged(MRIValueEvent event) {
200 synchronized (this) {
201 TestToolkit.println(event);
202 if (event.getValue() != null) {
203 notify();
204 }
205 incrementCounter();
206 }
207 }
208
209 public synchronized int getCounter() {
210 return counter;
211 }
212
213 public synchronized void incrementCounter() {
214 counter += 1;
215 }
216 }