1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *  
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *  
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License. 
18   *  
19   */
20  package org.apache.directory.server.ntp;
21  
22  
23  import java.nio.ByteBuffer;
24  
25  import junit.framework.TestCase;
26  
27  import org.apache.directory.server.ntp.io.NtpMessageDecoder;
28  import org.apache.directory.server.ntp.io.NtpMessageEncoder;
29  import org.apache.directory.server.ntp.messages.LeapIndicatorType;
30  import org.apache.directory.server.ntp.messages.ModeType;
31  import org.apache.directory.server.ntp.messages.NtpMessage;
32  import org.apache.directory.server.ntp.messages.NtpMessageModifier;
33  import org.apache.directory.server.ntp.messages.NtpTimeStamp;
34  import org.apache.directory.server.ntp.messages.ReferenceIdentifier;
35  import org.apache.directory.server.ntp.messages.StratumType;
36  import org.slf4j.Logger;
37  import org.slf4j.LoggerFactory;
38  
39  
40  /**
41   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
42   * @version $Rev: 547542 $, $Date: 2007-06-15 08:15:11 +0200 (Fr, 15 Jun 2007) $
43   */
44  public class NtpMessageEncoderTest extends TestCase
45  {
46      /** the log for this class */
47      private static final Logger log = LoggerFactory.getLogger( NtpMessageEncoderTest.class );
48  
49  
50      /**
51       * Tests the encoding of an NTP message.
52       *
53       * @throws Exception
54       */
55      public void testEncodeMessage() throws Exception
56      {
57          NtpMessageModifier modifier = new NtpMessageModifier();
58          modifier.setLeapIndicator( LeapIndicatorType.NO_WARNING );
59          modifier.setVersionNumber( 4 );
60          modifier.setMode( ModeType.SERVER );
61          modifier.setStratum( StratumType.PRIMARY_REFERENCE );
62          modifier.setPollInterval( ( byte ) 0x06 ); // 6
63          modifier.setPrecision( ( byte ) 0xFA ); // -6
64          modifier.setRootDelay( 0 );
65          modifier.setRootDispersion( 0 );
66          modifier.setReferenceIdentifier( ReferenceIdentifier.LOCL );
67  
68          NtpTimeStamp now = new NtpTimeStamp();
69  
70          modifier.setReferenceTimestamp( now );
71          modifier.setOriginateTimestamp( now );
72          modifier.setReceiveTimestamp( now );
73          modifier.setTransmitTimestamp( now );
74  
75          NtpMessage message = modifier.getNtpMessage();
76  
77          ByteBuffer replyByteBuffer = ByteBuffer.allocate( 1024 );
78  
79          NtpMessageEncoder encoder = new NtpMessageEncoder();
80          encoder.encode( replyByteBuffer, message );
81  
82          print( message );
83  
84          NtpMessageDecoder decoder = new NtpMessageDecoder();
85          NtpMessage reply = decoder.decode( replyByteBuffer );
86  
87          print( reply );
88      }
89  
90  
91      protected void print( NtpMessage request )
92      {
93          log.debug( String.valueOf( request.getLeapIndicator() ) );
94          log.debug( String.valueOf( request.getVersionNumber() ) );
95          log.debug( String.valueOf( request.getMode() ) );
96          log.debug( String.valueOf( request.getStratum() ) );
97          log.debug( String.valueOf( request.getPollInterval() ) );
98          log.debug( String.valueOf( request.getPrecision() ) );
99          log.debug( String.valueOf( request.getRootDelay() ) );
100         log.debug( String.valueOf( request.getRootDispersion() ) );
101         log.debug( String.valueOf( request.getReferenceIdentifier() ) );
102         log.debug( String.valueOf( request.getReferenceTimestamp() ) );
103         log.debug( String.valueOf( request.getOriginateTimestamp() ) );
104         log.debug( String.valueOf( request.getReceiveTimestamp() ) );
105         log.debug( String.valueOf( request.getTransmitTimestamp() ) );
106     }
107 }