1 /*
2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 *
26 *
27 * A test "management tool" used by unit tests -
28 * LocalManagementTest.java, CustomLauncherTest.java
29 *
30 * Usage: java TestManager <pid> <port>
31 *
32 * where <pid> is the process-id of the test application, and <port> is
33 * TCP port is used to shutdown the application.
34 */
35 import javax.management.MBeanServerConnection;
36 import javax.management.remote.JMXServiceURL;
37 import javax.management.remote.JMXConnectorFactory;
38 import javax.management.remote.JMXConnector;
39 import java.lang.management.RuntimeMXBean;
40 import static java.lang.management.ManagementFactory.*;
41 import java.net.Socket;
42 import java.net.InetSocketAddress;
43 import java.io.File;
44 import java.io.IOException;
45
46 // Sun specific
47 import com.sun.tools.attach.VirtualMachine;
48
49 // Sun implementation specific
50 import sun.management.ConnectorAddressLink;
51
52 public class TestManager {
53
54 /*
55 * Starts the management agent in the target VM
56 */
57 private static void startManagementAgent(String pid) throws IOException {
58 /*
59 * JAR file normally in ${java.home}/jre/lib but may be in ${java.home}/lib
60 * with development/non-images builds
61 */
62 String home = System.getProperty("java.home");
63 String agent = home + File.separator + "jre" + File.separator + "lib"
64 + File.separator + "management-agent.jar";
65 File f = new File(agent);
66 if (!f.exists()) {
67 agent = home + File.separator + "lib" + File.separator +
68 "management-agent.jar";
69 f = new File(agent);
70 if (!f.exists()) {
71 throw new RuntimeException("management-agent.jar missing");
72 }
73 }
74 agent = f.getCanonicalPath();
75
76 System.out.println("Loading " + agent + " into target VM ...");
77
78 try {
79 VirtualMachine.attach(pid).loadAgent(agent);
80 } catch (Exception x) {
81 throw new IOException(x.getMessage());
82 }
83 }
84
85 private static void connect(String pid, String address) throws Exception {
86 if (address == null) {
87 throw new RuntimeException("Local connector address for " +
88 pid + " is null");
89 }
90
91 System.out.println("Connect to process " + pid + " via: " + address);
92
93 JMXServiceURL url = new JMXServiceURL(address);
94 JMXConnector c = JMXConnectorFactory.connect(url);
95 MBeanServerConnection server = c.getMBeanServerConnection();
96
97 System.out.println("Connected.");
98
99 RuntimeMXBean rt = newPlatformMXBeanProxy(server,
100 RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
101 System.out.println(rt.getName());
102
103 // close the connection
104 c.close();
105 }
106
107
108 private final static String LOCAL_CONNECTOR_ADDRESS_PROP =
109 "com.sun.management.jmxremote.localConnectorAddress";
110 public static void main(String[] args) throws Exception {
111 String pid = args[0]; // pid as a string
112 System.out.println("Starting TestManager for PID = " + pid);
113 System.out.flush();
114 VirtualMachine vm = VirtualMachine.attach(pid);
115
116 String agentPropLocalConnectorAddress = (String)
117 vm.getAgentProperties().get(LOCAL_CONNECTOR_ADDRESS_PROP);
118
119 int vmid = Integer.parseInt(pid);
120 String jvmstatLocalConnectorAddress =
121 ConnectorAddressLink.importFrom(vmid);
122
123 if (agentPropLocalConnectorAddress == null &&
124 jvmstatLocalConnectorAddress == null) {
125 // No JMX Connector address so attach to VM, and load
126 // management-agent.jar
127 startManagementAgent(pid);
128 agentPropLocalConnectorAddress = (String)
129 vm.getAgentProperties().get(LOCAL_CONNECTOR_ADDRESS_PROP);
130 jvmstatLocalConnectorAddress =
131 ConnectorAddressLink.importFrom(vmid);
132 }
133
134
135 // Test address obtained from agent properties
136 System.out.println("Testing the connector address from agent properties");
137 connect(pid, agentPropLocalConnectorAddress);
138
139 // Test address obtained from jvmstat buffer
140 System.out.println("Testing the connector address from jvmstat buffer");
141 connect(pid, jvmstatLocalConnectorAddress);
142
143 // Shutdown application
144 int port = Integer.parseInt(args[1]);
145 System.out.println("Shutdown process via TCP port: " + port);
146 Socket s = new Socket();
147 s.connect(new InetSocketAddress(port));
148 s.close();
149 }
150 }