/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.directory.server.ntp;
import java.net.InetAddress;
import java.util.concurrent.Executors;
import org.apache.commons.net.ntp.NTPUDPClient;
import org.apache.commons.net.ntp.TimeInfo;
import org.apache.directory.server.protocol.shared.transport.TcpTransport;
import org.apache.directory.server.protocol.shared.transport.UdpTransport;
import org.apache.mina.filter.executor.ExecutorFilter;
import org.apache.mina.util.AvailablePortFinder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertTrue;
/**
* An test testing the Network Time Protocol (NTP).
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class NtpITest
{
private NtpServer ntpConfig;
private int port;
/**
* Set up a partition for EXAMPLE.COM and enable the NTP service. The LDAP service is disabled.
*/
@Before
public void setUp() throws Exception
{
ntpConfig = new NtpServer( );
port = AvailablePortFinder.getNextAvailable( 10123 );
TcpTransport tcpTransport = new TcpTransport( port );
UdpTransport udpTransport = new UdpTransport( port );
ntpConfig.setTransports( tcpTransport, udpTransport );
ntpConfig.getDatagramAcceptor( udpTransport ).getFilterChain().addLast( "executor", new ExecutorFilter( Executors.newCachedThreadPool() ) );
ntpConfig.getSocketAcceptor( tcpTransport ).getFilterChain().addLast( "executor", new ExecutorFilter( Executors.newCachedThreadPool() ) );
ntpConfig.setEnabled( true );
ntpConfig.start();
}
/**
* Tests to make sure NTP works when enabled in the server.
*
* @throws Exception if there are errors
*/
@Test
public void testNtp() throws Exception
{
long currentTime = System.currentTimeMillis();
InetAddress host = InetAddress.getByName( null );
NTPUDPClient ntp = new NTPUDPClient();
ntp.setDefaultTimeout( 500000 );
TimeInfo timeInfo = ntp.getTime( host, port );
long returnTime = timeInfo.getReturnTime();
assertTrue( currentTime - returnTime < 1000 );
timeInfo.computeDetails();
assertTrue( 0 < timeInfo.getOffset() && timeInfo.getOffset() < 1000 );
assertTrue( 0 < timeInfo.getDelay() && timeInfo.getDelay() < 1000 );
}
/**
* Tear down.
*/
@After
public void tearDown() throws Exception
{
ntpConfig.stop();
}
}