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1
5 package com.tctest.management;
6
7 import com.tc.logging.TCLogger;
8 import com.tc.logging.TCLogging;
9 import com.tc.management.TerracottaManagement;
10 import com.tc.management.beans.sessions.SessionMonitorMBean;
11 import com.tc.test.server.appserver.load.Node;
12 import com.tc.test.server.appserver.unit.AbstractAppServerTestCase;
13
14 import java.io.IOException  ;
15 import java.io.PrintWriter ;
16 import java.net.URL ;
17 import java.util.ArrayList ;
18 import java.util.Iterator ;
19 import java.util.List ;
20 import java.util.Properties ;
21 import java.util.Set ;
22
23 import javax.management.MBeanServerConnection ;
24 import javax.management.ObjectName ;
25 import javax.management.remote.JMXConnector ;
26 import javax.management.remote.JMXConnectorFactory ;
27 import javax.management.remote.JMXServiceURL ;
28 import javax.servlet.http.HttpServlet ;
29 import javax.servlet.http.HttpServletRequest ;
30 import javax.servlet.http.HttpServletResponse ;
31 import javax.servlet.http.HttpSession ;
32
33 public final class RequestCountTest extends AbstractAppServerTestCase {
34
35 private static final TCLogger logger = TCLogging.getTestingLogger(RequestCountTest.class);
36
37 private static final int SESSIONS_PER_NODE = 10;
38 private static final long TEST_DURATION = 30 * 1000;
39 private static final String CLIENT_NAME_PREFIX = "client-";
40
41 public void testRequestCount() throws Throwable {
42 collectVmStats();
43 assertTimeDirection();
44 List jvmArgs = new ArrayList (1);
45 jvmArgs.add("-Dcom.sun.management.jmxremote");
46 addDsoServerJvmArgs(jvmArgs);
47 startDsoServer();
48 runNodes(2);
49 }
50
51 private void runNodes(int nodeCount) throws Throwable {
52 Thread [] nodeRunners = new Thread [nodeCount];
53 NodeWithJMX[] nodes = new NodeWithJMX[nodeCount];
54 int[] ports = new int[nodeCount];
55
56 for (int i = 0; i < nodeCount; i++) {
57 ports[i] = startAppServer(true, new Properties (), new String [] { "-Dtc.node-name=" + CLIENT_NAME_PREFIX + i })
58 .serverPort();
59 }
60
61 final JMXConnector jmxConnector = getJMXConnector();
62 final MBeanServerConnection mbs = jmxConnector.getMBeanServerConnection();
63 final long beanCutoffTime = System.currentTimeMillis() + (60 * 1000);
64 Set beanSet = null;
65 for (beanSet = TerracottaManagement.getAllSessionMonitorMBeans(mbs); beanSet.size() != nodeCount; beanSet = TerracottaManagement
66 .getAllSessionMonitorMBeans(mbs)) {
67 if (!beanSet.isEmpty()) {
68 logger.info("Found some session beans but not all:");
69 for (final Iterator pos = beanSet.iterator(); pos.hasNext();) {
70 logger.info("Session bean[" + ((ObjectName ) pos.next()).getCanonicalName() + "]");
71 }
72 } else {
73 logger.info("No session beans found, expecting " + nodeCount + " of them");
74 }
75 if (System.currentTimeMillis() > beanCutoffTime) {
76 final String errMsg = "Unable to find DSO client MBeans within 60 seconds of starting the node";
77 logger.error(errMsg);
78 fail(errMsg);
79 } else {
80 logger.info("Unable to find DSO client MBeans after " + (beanCutoffTime - System.currentTimeMillis())
81 + "ms, sleeping for 3 seconds");
82 try {
83 Thread.sleep(3000);
84 } catch (InterruptedException ie) {
85 }
87 }
88 }
89 logger.info("We have all of our DSO client Mbeans after " + (beanCutoffTime - System.currentTimeMillis()) + ":");
90 for (final Iterator pos = beanSet.iterator(); pos.hasNext();) {
91 logger.info("Session bean[" + ((ObjectName ) pos.next()).getCanonicalName() + "]");
92 }
93 final SessionMonitorMBean[] mbeans = new SessionMonitorMBean[nodeCount];
94 for (int i = 0; i < nodeCount; i++) {
95 SessionMonitorMBean clientMBean = TerracottaManagement.getClientSessionMonitorMBean(mbs, beanSet,
96 CLIENT_NAME_PREFIX + i);
97 if (clientMBean == null) {
98 final String errMsg = "We thought we had all of our DSO client MBeans, turns out we don't have one for client["
99 + CLIENT_NAME_PREFIX + i + "]";
100 logger.error(errMsg);
101 fail(errMsg);
102 }
103 mbeans[i] = clientMBean;
104 }
105
106 for (int i = 0; i < nodeCount; i++) {
107 URL mutateUrl = createUrl(ports[i], RequestCountingServlet.class);
108 URL validateUrl = createUrl(ports[(i + 1) % nodeCount], RequestCountingServlet.class, "read=true");
109 nodes[i] = new NodeWithJMX(mutateUrl, validateUrl, SESSIONS_PER_NODE, TEST_DURATION);
110 nodeRunners[i] = new Thread (nodes[i], "Runner for server at port " + ports[i]);
111 }
112
113 for (int i = 0; i < nodeCount; i++) {
114 nodeRunners[i].start();
115 }
116
117 for (int i = 0; i < nodeCount; i++) {
118 nodeRunners[i].join();
119 }
120
121 for (int i = 0; i < nodeCount; i++) {
122 nodes[i].checkError();
123 }
124
125 for (int i = 0; i < nodeCount; i++) {
126 nodes[i].validateMBean(mbeans[i]);
127 }
128
129 jmxConnector.close();
130 }
131
132 private JMXConnector getJMXConnector() throws IOException {
133 JMXServiceURL jmxServerUrl = new JMXServiceURL ("service:jmx:rmi:///jndi/rmi://localhost:" + getJMXPort() + "/jmxrmi");
134 JMXConnector jmxConnector = JMXConnectorFactory.newJMXConnector(jmxServerUrl, null);
135 jmxConnector.connect();
136 return jmxConnector;
137 }
138
139 private static class NodeWithJMX extends Node {
140
141 public NodeWithJMX(URL mutateUrl, URL validateUrl, int numSessions, long duration) {
142 super(mutateUrl, validateUrl, numSessions, duration);
143 }
144
145 public void validateMBean(SessionMonitorMBean sessionMonitorMBean) {
146 int totalRequests = 0;
147 for (int i = 0; i < numRequests.length; i++) {
148 totalRequests += numRequests[i];
149 }
150
151 assertEquals(totalRequests, sessionMonitorMBean.getRequestCount());
152
153 assertEquals(1, validateUrls.length);
154 final URL validateUrl = validateUrls[0];
155
156 System.err.println("validated value of " + totalRequests + " for client " + validateUrl);
157 }
158 }
159
160 public static final class RequestCountingServlet extends HttpServlet {
161
162 public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
163 HttpSession session = request.getSession(true);
164 response.setContentType("text/html");
165 PrintWriter out = response.getWriter();
166
167 Integer count = (Integer ) session.getAttribute("count");
168 if (count == null) {
169 count = new Integer (0);
170 }
171
172 if (request.getParameter("read") != null) {
173 if (session.isNew()) {
174 out.println("session is new"); } else {
176 out.println(count.intValue());
177 }
178 } else {
179 int newValue = count.intValue() + 1;
180 session.setAttribute("count", new Integer (newValue));
181 out.println(newValue);
182 }
183 }
184 }
185 }
186
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