Mega Code Archive
EventContext
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/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. 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 Sun Microsystems 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.
*/
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.naming.event.EventContext;
import javax.naming.event.NamingExceptionEvent;
import javax.naming.event.NamingListener;
import javax.naming.ldap.UnsolicitedNotificationEvent;
import javax.naming.ldap.UnsolicitedNotificationListener;
/**
* Demonstrates how to register a listener for Unsolicited Notifications. In
* order for the listener to receive a notification, you must prod the directory
* server to send an Unsolicited Notification. The procedure for doing so is
* directory-dependent.
*
* usage: java RegUnsol
*/
class RegUnsol {
public static void main(String[] args) {
// Set up environment for creating initial context
Hashtable<String, Object> env = new Hashtable<String, Object>(11);
env
.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDItutorial");
try {
// Get event context for registering listener
EventContext ctx = (EventContext) (new InitialContext(env)
.lookup("ou=People"));
// Create listener
NamingListener listener = new UnsolListener();
// Register listener with context (all targets equivalent)
ctx.addNamingListener("", EventContext.ONELEVEL_SCOPE, listener);
// Wait 1 minutes for listener to receive events
try {
Thread.sleep(60000);
} catch (InterruptedException e) {
System.out.println("sleep interrupted");
}
// Not strictly necessary if we're going to close context anyhow
ctx.removeNamingListener(listener);
// Close context when we're done
ctx.close();
} catch (NamingException e) {
e.printStackTrace();
}
}
/**
* A sample UnsolicitedNotificationListener.
*/
static class UnsolListener implements UnsolicitedNotificationListener {
public void notificationReceived(UnsolicitedNotificationEvent evt) {
System.out.println("received: " + evt);
}
public void namingExceptionThrown(NamingExceptionEvent evt) {
System.out.println(">>> UnsolListener got an exception");
evt.getException().printStackTrace();
}
}
}
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