com.unboundid.ldap.listener

Class LDAPListener

java.lang.Object

java.lang.Thread

com.unboundid.ldap.listener.LDAPListener

All Implemented Interfaces:

java.lang.Runnable

@ThreadSafety(level=NOT_THREADSAFE)
public final class LDAPListener
extends java.lang.Thread

This class provides a framework that may be used to accept connections from LDAP clients and ensure that any requests received on those connections will be processed appropriately. It can be used to easily allow applications to accept LDAP requests, to create a simple proxy that can intercept and examine LDAP requests and responses passing between a client and server, or helping to test LDAP clients.

Example

The following example demonstrates the process that can be used to create an LDAP listener that will listen for LDAP requests on a randomly-selected port and immediately respond to them with a "success" result:

 // Create a canned response request handler that will always return a
 // "SUCCESS" result in response to any request.
 CannedResponseRequestHandler requestHandler =
    new CannedResponseRequestHandler(ResultCode.SUCCESS, null, null,
         null);

 // A listen port of zero indicates that the listener should
 // automatically pick a free port on the system.
 int listenPort = 0;

 // Create and start an LDAP listener to accept requests and blindly
 // return success results.
 LDAPListenerConfig listenerConfig = new LDAPListenerConfig(listenPort,
      requestHandler);
 LDAPListener listener = new LDAPListener(listenerConfig);
 listener.startListening();

 // Establish a connection to the listener and verify that a search
 // request will get a success result.
 LDAPConnection connection = new LDAPConnection("localhost",
      listener.getListenPort());
 SearchResult searchResult = connection.search("dc=example,dc=com",
      SearchScope.BASE, Filter.createPresenceFilter("objectClass"));
 LDAPTestUtils.assertResultCodeEquals(searchResult,
      ResultCode.SUCCESS);

 // Close the connection and stop the listener.
 connection.close();
 listener.shutDown(true);
 

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
LDAPListener(LDAPListenerConfig config) Creates a new LDAPListener object with the provided configuration.

Method Summary

Methods

Modifier and Type	Method and Description
void	closeAllConnections(boolean sendNoticeOfDisconnection) Closes all connections that are currently established to this listener.
java.net.InetAddress	getListenAddress() Retrieves the address on which this listener is accepting client connections.
int	getListenPort() Retrieves the port on which this listener is accepting client connections.
void	run() Operates in a loop, waiting for client connections to arrive and ensuring that they are handled properly.
void	shutDown(boolean closeExisting) Indicates that this listener should stop accepting connections.
void	startListening() Creates the server socket for this listener and starts listening for client connections.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LDAPListener

public LDAPListener(LDAPListenerConfig config)

Creates a new LDAPListener object with the provided configuration. The startListening() method must be called after creating the object to actually start listening for requests.

Parameters:

config - The configuration to use for this listener.

Method Detail

startListening

public void startListening()
                    throws java.io.IOException

Creates the server socket for this listener and starts listening for client connections. This method will return after the listener has stated.

Throws:

java.io.IOException - If a problem occurs while creating the server socket.

run

@InternalUseOnly
public void run()

Operates in a loop, waiting for client connections to arrive and ensuring that they are handled properly. This method is for internal use only and must not be called by third-party code.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

closeAllConnections

public void closeAllConnections(boolean sendNoticeOfDisconnection)

Closes all connections that are currently established to this listener. This has no effect on the ability to accept new connections.

Parameters:

sendNoticeOfDisconnection - Indicates whether to send the client a notice of disconnection unsolicited notification before closing the connection.

shutDown

public void shutDown(boolean closeExisting)

Indicates that this listener should stop accepting connections. It may optionally also terminate any existing connections that are already established.

Parameters:

closeExisting - Indicates whether to close existing connections that may already be established.

getListenAddress

public java.net.InetAddress getListenAddress()

Retrieves the address on which this listener is accepting client connections. Note that if no explicit listen address was configured, then the address returned may not be usable by clients. In the event that the InetAddress.isAnyLocalAddress method returns true, then clients should generally use localhost to attempt to establish connections.

Returns:

The address on which this listener is accepting client connections, or null if it is not currently listening for client connections.

getListenPort

public int getListenPort()

Retrieves the port on which this listener is accepting client connections.

Returns:

The port on which this listener is accepting client connections, or -1 if it is not currently listening for client connections.