116 lines
3.5 KiB
Java
116 lines
3.5 KiB
Java
/*
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* MACAddressParserTest.java
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*
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* Created 30.01.2006.
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*
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* eaio: UUID - an implementation of the UUID specification
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* Copyright (c) 2003-2009 Johann Burkard (jb@eaio.com) http://eaio.com.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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* NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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package com.eaio.uuid;
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/**
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* The MAC address parser attempts to find the following patterns:
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* <ul>
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* <li>.{1,2}:.{1,2}:.{1,2}:.{1,2}:.{1,2}:.{1,2}</li>
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* <li>.{1,2}-.{1,2}-.{1,2}-.{1,2}-.{1,2}-.{1,2}</li>
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* </ul>
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*
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* @see <a href="http://johannburkard.de/software/uuid/">UUID</a>
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* @author <a href="mailto:jb@eaio.com">Johann Burkard</a>
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* @version $Id: MACAddressParser.java 1888 2009-03-15 12:43:24Z johann $
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*/
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class MACAddressParser {
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/**
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* No instances needed.
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*/
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private MACAddressParser() {
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super();
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}
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/**
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* Attempts to find a pattern in the given String.
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*
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* @param in the String, may not be <code>null</code>
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* @return the substring that matches this pattern or <code>null</code>
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*/
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static String parse(String in) {
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String out = in;
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// lanscan
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int hexStart = out.indexOf("0x");
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if (hexStart != -1 && out.indexOf("ETHER") != -1) {
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int hexEnd = out.indexOf(' ', hexStart);
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if (hexEnd > hexStart + 2) {
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out = out.substring(hexStart, hexEnd);
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}
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}
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else {
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int octets = 0;
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int lastIndex, old, end;
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if (out.indexOf('-') > -1) {
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out = out.replace('-', ':');
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}
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lastIndex = out.lastIndexOf(':');
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if (lastIndex > out.length() - 2) {
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out = null;
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}
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else {
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end = Math.min(out.length(), lastIndex + 3);
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++octets;
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old = lastIndex;
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while (octets != 5 && lastIndex != -1 && lastIndex > 1) {
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lastIndex = out.lastIndexOf(':', --lastIndex);
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if (old - lastIndex == 3 || old - lastIndex == 2) {
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++octets;
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old = lastIndex;
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}
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}
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if (octets == 5 && lastIndex > 1) {
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out = out.substring(lastIndex - 2, end).trim();
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}
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else {
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out = null;
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}
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}
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}
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if (out != null && out.startsWith("0x")) {
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out = out.substring(2);
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}
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return out;
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}
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}
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