/*
* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
package com.sun.jmx.examples.scandir;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Map;
import javax.management.MBeanServerConnection;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import javax.rmi.ssl.SslRMIClientSocketFactory;
/**
* The ScanDirClient class is a very simple programmatic client example
* which is able to connect to a secured JMX <i>scandir</i> application.
* <p>The program initialize the connection environment map with the
* appropriate properties and credentials, and then connects to the
* secure JMX <i>scandir</i> daemon.</p>
* <p>It gets the application's current configuration and prints it on
* its <code>System.out</code>.</p>
* <p>The {@link #main main} method takes two arguments: the host on which
* the server is running (localhost), and the port number
* that was configured to start the server RMI Connector (4545).
* </p>
* @author Sun Microsystems, 2006 - All rights reserved.
**/
public class ScanDirClient {
// This class has only a main.
private ScanDirClient() { }
/**
* The usage string for the ScanDirClient.
*/
public static final String USAGE = ScanDirClient.class.getSimpleName() +
" <server-host> <rmi-port-number>";
/**
* Connects to a secured JMX <i>scandir</i> application.
* @param args The {@code main} method takes two parameters:
* <ul>
* <li>args[0] must be the server's host</li>
* <li>args[1] must be the rmi port number at which the
* JMX <i>scandir</i> daemon is listening for connections
* - that is, the port number of its JMX RMI Connector which
* was configured in {@code management.properties}
* </li>
* <ul>
**/
public static void main(String[] args) {
try {
// Check args
//
if (args==null || args.length!=2) {
System.err.println("Bad number of arguments: usage is: \n\t" +
USAGE);
System.exit(1);
}
try {
InetAddress.getByName(args[0]);
} catch (UnknownHostException x) {
System.err.println("No such host: " + args[0]+
"\n usage is: \n\t" + USAGE);
System.exit(2);
} catch (Exception x) {
System.err.println("Bad address: " + args[0]+
"\n usage is: \n\t" + USAGE);
System.exit(2);
}
try {
if (Integer.parseInt(args[1]) <= 0) {
System.err.println("Bad port value: " + args[1]+
"\n usage is: \n\t" + USAGE);
System.exit(2);
}
} catch (Exception x) {
System.err.println("Bad argument: " + args[1]+
"\n usage is: \n\t" + USAGE);
System.exit(2);
}
// Create an environment map to hold connection properties
// like credentials etc... We will later pass this map
// to the JMX Connector.
//
System.out.println("\nInitialize the environment map");
final Map<String,Object> env = new HashMap<String,Object>();
// Provide the credentials required by the server
// to successfully perform user authentication
//
final String[] credentials = new String[] { "guest" , "guestpasswd" };
env.put("jmx.remote.credentials", credentials);
// Provide the SSL/TLS-based RMI Client Socket Factory required
// by the JNDI/RMI Registry Service Provider to communicate with
// the SSL/TLS-protected RMI Registry
//
env.put("com.sun.jndi.rmi.factory.socket",
new SslRMIClientSocketFactory());
// Create the RMI connector client and
// connect it to the RMI connector server
// args[0] is the server's host - localhost
// args[1] is the secure server port - 4545
//
System.out.println("\nCreate the RMI connector client and " +
"connect it to the RMI connector server");
final JMXServiceURL url = new JMXServiceURL(
"service:jmx:rmi:///jndi/rmi://"+args[0]+":"+args[1] +
"/jmxrmi");
System.out.println("Connecting to: "+url);
final JMXConnector jmxc = JMXConnectorFactory.connect(url, env);
// Get an MBeanServerConnection
//
System.out.println("\nGet the MBeanServerConnection");
final MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
// Create a proxy for the ScanManager MXBean
//
final ScanManagerMXBean proxy =
ScanManager.newSingletonProxy(mbsc);
// Get the ScanDirConfig MXBean from the scan manager
//
System.out.println(
"\nGet ScanDirConfigMXBean from ScanManagerMXBean");
final ScanDirConfigMXBean configMBean =
proxy.getConfigurationMBean();
// Print the scan dir configuration
//
System.out.println(
"\nGet 'Configuration' attribute on ScanDirConfigMXBean");
System.out.println("\nConfiguration:\n" +
configMBean.getConfiguration());
// Try to invoke the "close" method on the ScanManager MXBean.
//
// Should get a SecurityException as the user "guest" doesn't
// have readwrite access.
//
System.out.println("\nInvoke 'close' on ScanManagerMXBean");
try {
proxy.close();
} catch (SecurityException e) {
System.out.println("\nGot expected security exception: " + e);
}
// Close MBeanServer connection
//
System.out.println("\nClose the connection to the server");
jmxc.close();
System.out.println("\nBye! Bye!");
} catch (Exception e) {
System.out.println("\nGot unexpected exception: " + e);
e.printStackTrace();
System.exit(3);
}
}
}