@Override
public String getDefaultDomain() throws IOException {
try {
return connection.getDefaultDomain();
} catch (IOException e) {
checkConnection();
return connection.getDefaultDomain();
}
}
private static void test(String proto) throws Exception {
System.out.println(">>> Test for protocol " + proto);
JMXServiceURL u = null;
JMXConnectorServer server = null;
HashMap env = new HashMap(2);
// server will close a client connection after 1 second
env.put("jmx.remote.x.server.connection.timeout", "1000");
// disable the client ping
env.put("jmx.remote.x.client.connection.check.period", "0");
try {
u = new JMXServiceURL(proto, null, 0);
server = JMXConnectorServerFactory.newJMXConnectorServer(u, env, mbs);
} catch (MalformedURLException e) {
System.out.println(">>> Skipping unsupported URL " + proto);
}
server.start();
JMXServiceURL addr = server.getAddress();
long st = 2000;
MyListener myListener;
// a cycle to make sure that we test the blocking problem.
do {
JMXConnector client = JMXConnectorFactory.connect(addr, env);
MBeanServerConnection conn = client.getMBeanServerConnection();
myListener = new MyListener(conn);
client.addConnectionNotificationListener(myListener, null, null);
// wait the server to close the client connection
Thread.sleep(st);
// makes the listener to do a remote request via the connection
// which should be closed by the server.
conn.getDefaultDomain();
// allow the listner to have time to work
Thread.sleep(100);
// get a closed notif, should no block.
client.close();
Thread.sleep(100);
st += 2000;
} while (!myListener.isDone());
server.stop();
}
/**
* Program Main.
*
* <p>Lookup all JMX agents in the LDAP Directory and list their MBeans and attributes.
*
* <p>You may wish to use the following properties on the Java command line:
*
* <ul>
* <li><code>-Dagent.name=<AgentName></code>: specifies an AgentName to lookup (default is
* null, meaning any agent).
* <li><code>-Dprotocol=<ProtocolType></code>: restrains the client to lookup for a
* specific protocol type (default is null, meaning any type).
* <li><code>-Djava.naming.factory.initial=<initial-context-factory>
* </code>: The initial context factory to use for accessing the LDAP directory (see {@link
* Context#INITIAL_CONTEXT_FACTORY Context.INITIAL_CONTEXT_FACTORY}) - default is <code>
* "com.sun.jndi.ldap.LdapCtxFactory"</code>.
* <li><code>-Djava.naming.provider.url=<provider-url></code>: The LDAP Provider URL (see
* {@link Context#PROVIDER_URL Context.PROVIDER_URL}).
* <li><code>-Djava.naming.security.principal=<ldap-principal>
* </code>: The security principal (login) to use to connect with the LDAP directory (see
* {@link Context#SECURITY_PRINCIPAL Context.SECURITY_PRINCIPAL} - default is <code>
* "cn=Directory Manager"</code>.
* <li><code>-Djava.naming.security.credentials=<ldap-credentials>
* </code>: The security credentials (password) to use to connect with the LDAP directory (see
* {@link Context#SECURITY_CREDENTIALS Context.SECURITY_CREDENTIALS}).
* <li><code>-Ddebug="true|false"</code>: switch the Server debug flag on/off (default is
* "false")
* </ul>
*/
public static void main(String[] args) {
try {
// Get the value of the debug flag.
//
debug = (Boolean.valueOf(System.getProperty("debug", "false"))).booleanValue();
// Get a pointer to the LDAP Directory.
//
final DirContext root = getRootContext();
debug("root is: " + root.getNameInNamespace());
final String protocolType = System.getProperty("protocol");
final String agentName = System.getProperty("agent.name");
// Lookup all matching agents in the LDAP Directory.
//
List l = lookup(root, protocolType, agentName);
// Attempt to connect to retrieved agents
//
System.out.println("Number of agents found : " + l.size());
int j = 1;
for (Iterator i = l.iterator(); i.hasNext(); j++) {
JMXConnector c1 = (JMXConnector) i.next();
if (c1 != null) {
// Connect
//
System.out.println("----------------------------------------------------");
System.out.println("\tConnecting to agent number " + j);
System.out.println("----------------------------------------------------");
debug("JMXConnector is: " + c1);
// Prepare the environment Map
//
final HashMap env = new HashMap();
final String factory = System.getProperty(Context.INITIAL_CONTEXT_FACTORY);
final String ldapServerUrl = System.getProperty(Context.PROVIDER_URL);
final String ldapUser = System.getProperty(Context.SECURITY_PRINCIPAL);
final String ldapPasswd = System.getProperty(Context.SECURITY_CREDENTIALS);
// Transfer some system properties to the Map
//
if (factory != null) // this should not be needed
env.put(Context.INITIAL_CONTEXT_FACTORY, factory);
if (ldapServerUrl != null) // this should not be needed
env.put(Context.PROVIDER_URL, ldapServerUrl);
if (ldapUser != null) // this is needed when LDAP is used
env.put(Context.SECURITY_PRINCIPAL, ldapUser);
if (ldapPasswd != null) // this is needed when LDAP is used
env.put(Context.SECURITY_CREDENTIALS, ldapPasswd);
try {
c1.connect(env);
} catch (IOException x) {
System.err.println("Connection failed: " + x);
x.printStackTrace(System.err);
continue;
}
// Get MBeanServerConnection
//
MBeanServerConnection conn = c1.getMBeanServerConnection();
debug("Connection is:" + conn);
System.out.println("Server domain is: " + conn.getDefaultDomain());
// List all MBeans
//
try {
listMBeans(conn);
} catch (IOException x) {
System.err.println("Failed to list MBeans: " + x);
x.printStackTrace(System.err);
}
// Close connector
//
try {
c1.close();
} catch (IOException x) {
System.err.println("Failed to close connection: " + x);
x.printStackTrace(System.err);
}
}
}
} catch (Exception x) {
System.err.println("Unexpected exception caught in main: " + x);
x.printStackTrace(System.err);
}
}
/**
* Program Main
*
* <p>Lookup all JMX agents in the Jini Lookup Service and list their MBeans and attributes.
*
* <p>You may wish to use the following properties on the Java command line:
*
* <ul>
* <li><code>-Dagent.name=<AgentName></code>: specifies an AgentName to lookup (default is
* null, meaning any agent).
* <li><code>-Djini.lookup.url=<jini-url></code>: the Jini Lookup Service URL (default is
* "jini://localhost"), see {@link #getRegistrar()}.
* <li><code>-Ddebug="true|false"</code>: switch the Client debug flag on/off (default is
* "false").
* </ul>
*/
public static void main(String[] args) {
try {
// Jini requires a security manager.
//
if (System.getSecurityManager() == null) System.setSecurityManager(new RMISecurityManager());
// Get the value of the debug flag.
//
debug = (Boolean.valueOf(System.getProperty("debug", "false"))).booleanValue();
// Get AgentName to lookup. If not defined, all agents
// are looked up.
//
final String agentName = System.getProperty("agent.name");
// Get a pointer to the Jini Lookup Service.
//
final ServiceRegistrar registrar = getRegistrar();
debug("registrar is: " + registrar);
// Lookup all matching agents in the Jini Lookup Service.
//
List l = lookup(registrar, agentName);
// Attempt to connect to retrieved agents
//
System.out.println("Number of agents found : " + l.size());
int j = 1;
for (Iterator i = l.iterator(); i.hasNext(); j++) {
JMXConnector c1 = (JMXConnector) i.next();
if (c1 != null) {
// Connect
//
System.out.println("----------------------------------------------------");
System.out.println("\tConnecting to agent number " + j);
System.out.println("----------------------------------------------------");
debug("JMXConnector is: " + c1);
try {
c1.connect(null);
} catch (IOException x) {
System.err.println("Connection failed: " + x);
if (debug) x.printStackTrace(System.err);
continue;
}
// Get MBeanServerConnection
//
MBeanServerConnection conn = c1.getMBeanServerConnection();
debug("Connection is:" + conn);
System.out.println("Server domain is: " + conn.getDefaultDomain());
// List all MBeans
//
try {
listMBeans(conn);
} catch (IOException x) {
System.err.println("Failed to list MBeans: " + x);
if (debug) x.printStackTrace(System.err);
}
// Close connector
//
try {
c1.close();
} catch (IOException x) {
System.err.println("Failed to close connection: " + x);
if (debug) x.printStackTrace(System.err);
}
}
}
} catch (Exception x) {
System.err.println("Unexpected exception caught in main: " + x);
x.printStackTrace(System.err);
}
}