Coverage report

  %line %branch
org.apache.commons.net.ntp.NtpUtils
0% 
0% 

 1  
 package org.apache.commons.net.ntp;
 2  
 /*
 3  
  * Copyright 2001-2005 The Apache Software Foundation
 4  
  *
 5  
  * Licensed under the Apache License, Version 2.0 (the "License");
 6  
  * you may not use this file except in compliance with the License.
 7  
  * You may obtain a copy of the License at
 8  
  *
 9  
  *     http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 
 18  
 /***
 19  
  * Common NtpUtils Helper class.
 20  
  *
 21  
  * @author Jason Mathews, MITRE Corp
 22  
  *
 23  
  * @version $Revision: 165675 $ $Date: 2005-05-02 15:09:55 -0500 (Mon, 02 May 2005) $
 24  
  */
 25  0
 public final class NtpUtils {
 26  
 
 27  
     /***
 28  
       * Returns 32-bit integer address to IPv4 address string "%d.%d.%d.%d" format.
 29  
       *
 30  
       * @param address  the 32-bit address
 31  
       * @return  the raw IP address in a string format.
 32  
       */
 33  
      public static String getHostAddress(int address)
 34  
      {
 35  0
           return ((address >>> 24) & 0xFF) + "." +
 36  
                  ((address >>> 16) & 0xFF) + "." +
 37  
                  ((address >>>  8) & 0xFF) + "." +
 38  
                  ((address >>>  0) & 0xFF);
 39  
      }
 40  
 
 41  
     /***
 42  
      * Returns NTP packet reference identifier as IP address.
 43  
      *
 44  
      * @param packet  NTP packet
 45  
      * @return  the packet reference id (as IP address) in "%d.%d.%d.%d" format.
 46  
      */
 47  
      public static String getRefAddress(NtpV3Packet packet)
 48  
      {
 49  0
          int address = (packet == null) ? 0 : packet.getReferenceId();
 50  0
          return getHostAddress(address);
 51  
      }
 52  
 
 53  
     /***
 54  
      * Get refId as reference clock string (e.g. GPS, WWV, LCL). If string is
 55  
      * invalid (non-ASCII character) then returns empty string "".
 56  
      * For details refer to the <A HREF="http://www.eecis.udel.edu/~mills/ntp/html/refclock.html#list">Comprehensive
 57  
      * List of Clock Drivers</A>.
 58  
      *
 59  
      * @param message
 60  
      * @return reference clock string if primary NTP server
 61  
      */
 62  
     public static String getReferenceClock(NtpV3Packet message) {
 63  0
         if (message == null)
 64  0
             return "";
 65  0
         int refId = message.getReferenceId();
 66  0
         if (refId == 0)
 67  0
             return "";
 68  0
         StringBuffer buf = new StringBuffer(4);
 69  
         // start at highest-order byte (0x4c434c00 -> LCL)
 70  0
         for (int shiftBits = 24; shiftBits >= 0; shiftBits -= 8)
 71  
         {
 72  0
             char c = (class="keyword">char) ((refId >>> shiftBits) & 0xff);
 73  0
             if (c == 0) break; // 0-terminated ASCII string
 74  0
             if (!Character.isLetterOrDigit(c))
 75  0
                 return "";
 76  0
             buf.append(c);
 77  
         }
 78  0
         return buf.toString();
 79  
     }
 80  
 
 81  
     /***
 82  
      * Return human-readable name of message mode type (RFC 1305).
 83  
      *
 84  
      * @param mode
 85  
      * @return mode name
 86  
      */
 87  
     public static String getModeName(int mode)
 88  
     {
 89  0
         switch (mode) {
 90  
             case NtpV3Packet.MODE_RESERVED:
 91  0
                 return "Reserved";
 92  
             case NtpV3Packet.MODE_SYMMETRIC_ACTIVE:
 93  0
                 return "Symmetric Active";
 94  
             case NtpV3Packet.MODE_SYMMETRIC_PASSIVE:
 95  0
                 return "Symmetric Passive";
 96  
             case NtpV3Packet.MODE_CLIENT:
 97  0
                 return "Client";
 98  
             case NtpV3Packet.MODE_SERVER:
 99  0
                 return "Server";
 100  
             case NtpV3Packet.MODE_BROADCAST:
 101  0
                 return "Broadcast";
 102  
             case NtpV3Packet.MODE_CONTROL_MESSAGE:
 103  0
                 return "Control";
 104  
             case NtpV3Packet.MODE_PRIVATE:
 105  0
                 return "Private";
 106  
             default:
 107  0
                 return "Unknown";
 108  
         }
 109  
     }
 110  
 
 111  
 }

This report is generated by jcoverage, Maven and Maven JCoverage Plugin.