Coverage report

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org.apache.commons.net.ntp.NtpUtils |
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1 |  |
     package org.apache.commons.net.ntp;
2 |  |
     /*
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      * Copyright 2001-2005 The Apache Software Foundation
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      *
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      * Licensed under the Apache License, Version 2.0 (the "License");
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      * you may not use this file except in compliance with the License.
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      * You may obtain a copy of the License at
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      *
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      *     http://www.apache.org/licenses/LICENSE-2.0
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      *
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      * Unless required by applicable law or agreed to in writing, software
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      * distributed under the License is distributed on an "AS IS" BASIS,
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      * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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      * See the License for the specific language governing permissions and
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      * limitations under the License.
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      */
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18 |  |
     /***
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      * Common NtpUtils Helper class.
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      *
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      * @author Jason Mathews, MITRE Corp
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      *
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      * @version $Revision: 165675 $ $Date: 2005-05-02 21:09:55 +0100 (Mon, 02 May 2005) $
24 |  |
      */
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     public final class NtpUtils {
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         /***
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           * Returns 32-bit integer address to IPv4 address string "%d.%d.%d.%d" format.
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           *
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           * @param address  the 32-bit address
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           * @return  the raw IP address in a string format.
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           */
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          public static String getHostAddress(int address)
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          {
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               return ((address >>> 24) & 0xFF) + "." +
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                      ((address >>> 16) & 0xFF) + "." +
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                      ((address >>>  8) & 0xFF) + "." +
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                      ((address >>>  0) & 0xFF);
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          }
40 |  |
41 |  |
         /***
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          * Returns NTP packet reference identifier as IP address.
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          *
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          * @param packet  NTP packet
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          * @return  the packet reference id (as IP address) in "%d.%d.%d.%d" format.
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          */
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          public static String getRefAddress(NtpV3Packet packet)
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          {
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              int address = (packet == null) ? 0 : packet.getReferenceId();
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              return getHostAddress(address);
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          }
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53 |  |
         /***
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          * Get refId as reference clock string (e.g. GPS, WWV, LCL). If string is
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          * invalid (non-ASCII character) then returns empty string "".
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          * For details refer to the <A HREF="http://www.eecis.udel.edu/~mills/ntp/html/refclock.html#list">Comprehensive
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          * List of Clock Drivers</A>.
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          *
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          * @param message
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          * @return reference clock string if primary NTP server
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          */
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         public static String getReferenceClock(NtpV3Packet message) {
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             if (message == null)
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                 return "";
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             int refId = message.getReferenceId();
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             if (refId == 0)
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                 return "";
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             StringBuffer buf = new StringBuffer(4);
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             // start at highest-order byte (0x4c434c00 -> LCL)
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             for (int shiftBits = 24; shiftBits >= 0; shiftBits -= 8)
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             {
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                 char c = (class="keyword">char) ((refId >>> shiftBits) & 0xff);
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                 if (c == 0) break; // 0-terminated ASCII string
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                 if (!Character.isLetterOrDigit(c))
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                     return "";
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                 buf.append(c);
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             }
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             return buf.toString();
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         }
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81 |  |
         /***
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          * Return human-readable name of message mode type (RFC 1305).
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          *
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          * @param mode
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          * @return mode name
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          */
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         public static String getModeName(int mode)
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         {
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             switch (mode) {
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                 case NtpV3Packet.MODE_RESERVED:
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                     return "Reserved";
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                 case NtpV3Packet.MODE_SYMMETRIC_ACTIVE:
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                     return "Symmetric Active";
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                 case NtpV3Packet.MODE_SYMMETRIC_PASSIVE:
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                     return "Symmetric Passive";
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                 case NtpV3Packet.MODE_CLIENT:
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                     return "Client";
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                 case NtpV3Packet.MODE_SERVER:
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                     return "Server";
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                 case NtpV3Packet.MODE_BROADCAST:
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                     return "Broadcast";
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                 case NtpV3Packet.MODE_CONTROL_MESSAGE:
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                     return "Control";
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                 case NtpV3Packet.MODE_PRIVATE:
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                     return "Private";
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                 default:
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                     return "Unknown";
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             }
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         }
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111 |  |
     }

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