Java LocalPortForwarder.getLocalPort方法代码示例

import ch.ethz.ssh2.LocalPortForwarder; //导入方法依赖的package包/类
/**
 * Creates a new portforward and returns the local port to bind to it on
 * @param forwardingHost The host to connect through
 * @param sshPort The ssh port on the forwarding host to connect through
 * @param user The user to connect as
 * @param connectHost The endpoint host to connect to
 * @param connectPort The endpoint port to connect to
 * @return the local port to bind to
 */
public int createPortForward(final String forwardingHost, final int sshPort, final String user, final String connectHost, final int connectPort) {
	if(connectHost==null || connectHost.trim().isEmpty()) throw new IllegalArgumentException("The passed connect host was null or empty");
	if(connectPort < 1 || connectPort > 65535) throw new IllegalArgumentException("The requested port number [" + connectPort + "] is invalid");
	
	final String lpfKey = connectHost.trim() + "-" + connectPort;
	LocalPortForwarder lpf = portForwards.putIfAbsent(lpfKey, LocalPortForwarder.PLACEHOLDER);
	if(lpf==null || lpf == LocalPortForwarder.PLACEHOLDER) {
		if(forwardingHost==null || forwardingHost.trim().isEmpty()) throw new IllegalArgumentException("The passed forwarding host was null or empty");
		if(sshPort < 1 || sshPort > 65535) throw new IllegalArgumentException("The requested forwarding ssh port number [" + sshPort + "] is invalid");
		if(user==null || user.trim().isEmpty()) throw new IllegalArgumentException("The passed forwarding host user was null or empty");
		final String forwardKey = String.format(SSHConnection.KEY_TEMPLATE, user, forwardingHost, sshPort);
		final SSHConnection conn = connectedConnections.get(forwardKey);
		if(conn==null) throw new IllegalStateException("No connected connection for forwarder [" + forwardKey + "]");
		lpf = conn.createPortForward(0, forwardingHost, sshPort);
		portForwards.replace(lpfKey, lpf);
	}
	return lpf.getLocalPort();		
}
 

import ch.ethz.ssh2.LocalPortForwarder; //导入方法依赖的package包/类
/**
 * Returns the local port bound to the requested remote host and port
 * @param connectHost The host to connect to
 * @param connectPort The port on the connect host to connect to
 * @return the local port to bind to if one wants to connect there
 */
public int getPortForward(final String connectHost, final int connectPort) {
	if(connectHost==null || connectHost.trim().isEmpty()) throw new IllegalArgumentException("The passed connect host was null or empty");
	if(connectPort < 1 || connectPort > 65535) throw new IllegalArgumentException("The requested port number [" + connectPort + "] is invalid");
	final String key = connectHost.trim() + "-" + connectPort;
	final LocalPortForwarder lpf = portForwards.get(key);
	if(lpf==null || lpf == LocalPortForwarder.PLACEHOLDER) throw new RuntimeException("No portforward established to [" + key + "]");
	return lpf.getLocalPort();
}
 

import ch.ethz.ssh2.LocalPortForwarder; //导入方法依赖的package包/类
/**
 * Tests loading an array of SSHConnections from JSON and establishing a basic connection
 * @throws Exception thrown on any error
 */
@SuppressWarnings("static-method")
@Test
public void testJMXMPTunnel() throws Exception {
	System.clearProperty(SSHD_PORT_PROP);
	final ApacheSSHDServer sshdServer = ApacheSSHDServer.getInstance();		
	final int[] ports = setLocalPorts();
	System.setProperty(SSHD_PORT_PROP, "" + sshdServer.getPort());
	final JMXMPConnectorServer jmxmp = JMXHelper.fireUpJMXMPServer(0);
	final int remotePort = jmxmp.getAddress().getPort();
	final String agentId = JMXHelper.getAgentId();
	log("Actual Agent ID: [" + agentId + "]");
	try {			
		final URL url = SSHConnectionTest.class.getClassLoader().getResource(TEST_JSON);
		final SSHConnection[] connections = SSHTunnelManager.parseConnections(url);
		log(Arrays.deepToString(connections));
		for(int i = 0; i < connections.length; i++) {
			connections[i].authenticate();
			LocalPortForwarder lpf = (LocalPortForwarder)PrivateAccessor.invoke(connections[i], "createPortForward", new Object[]{0, "localhost", remotePort}, int.class, String.class, int.class);
			final int localPort = lpf.getLocalPort();
			final JMXConnector jmxConnector = JMXHelper.getJMXConnection("service:jmx:jmxmp://localhost:" + localPort, true, null);
			final MBeanServerConnection server = jmxConnector.getMBeanServerConnection();
			final String readAgentId = JMXHelper.getAgentId(server);
			log("Agent ID: for [" + connections[i] + "] : [" + agentId + "]");
			Assert.assertEquals("Mismatch on expected agent ids", agentId, readAgentId);
			jmxConnector.close();
		}
	} finally {
		jmxmp.stop();
		sshdServer.stop(true);
		System.clearProperty(SSHD_PORT_PROP);
	}
}