package com.thinkgem.jeesite.modules.ad.util;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* 获取MAC地址
* @author
* 2011-12
*/
public class GetMacAddress {
   public static String callCmd(String[] cmd) {
     String result = "";
     String line = "";
     try {
       Process proc = Runtime.getRuntime().exec(cmd);
       InputStreamReader is = new InputStreamReader(proc.getInputStream());
       BufferedReader br = new BufferedReader(is);
       while ((line = br.readLine ()) != null) {
       result += line;
       }
     }
     catch(Exception e) {
       e.printStackTrace();
     }
     return result;
   }

   /**
   *
   * @param cmd 第一个命令
   * @param another 第二个命令
   * @return  第二个命令的执行结果
   */
   public static String callCmd(String[] cmd,String[] another) {
     String result = "";
     String line = "";
     try {
       Runtime rt = Runtime.getRuntime();
       Process proc = rt.exec(cmd);
       proc.waitFor(); //已经执行完第一个命令，准备执行第二个命令
       proc = rt.exec(another);
       InputStreamReader is = new InputStreamReader(proc.getInputStream());
       BufferedReader br = new BufferedReader (is);
       while ((line = br.readLine ()) != null) {
         result += line;
       }
     }
     catch(Exception e) {
       e.printStackTrace();
     }
     return result;
   }



   /**
   *
   * @param ip 目标ip,一般在局域网内
   * @param sourceString 命令处理的结果字符串
   * @param macSeparator mac分隔符号
   * @return mac地址，用上面的分隔符号表示
   */
   public static String filterMacAddress(final String ip, final String sourceString,final String macSeparator) {
     String result = "";
     String regExp = "((([0-9,A-F,a-f]{1,2}" + macSeparator + "){1,5})[0-9,A-F,a-f]{1,2})";
     Pattern pattern = Pattern.compile(regExp);
     Matcher matcher = pattern.matcher(sourceString);
     while(matcher.find()){
       result = matcher.group(1);
       if(sourceString.indexOf(ip) <= sourceString.lastIndexOf(matcher.group(1))) {
         break; //如果有多个IP,只匹配本IP对应的Mac.
       }
     }

     return result;
   }



   /**
   *
   * @param ip 目标ip
   * @return  Mac Address
   *
   */
   public static String getMacInWindows(final String ip){
     String result = "";
     String[] cmd = {
         "cmd",
         "/c",
         "ping " + ip
         };
     String[] another = {
         "cmd",
         "/c",
         "arp -a"
         };

     String cmdResult = callCmd(cmd,another);
     result = filterMacAddress(ip,cmdResult,"-");

     return result;
   }

   /**
   * @param ip 目标ip
   * @return  Mac Address
   *
   */
   public static String getMacInLinux(final String ip){
     String result = "";
     String[] cmd = {
         "/bin/sh",
         "-c",
         "ping " + ip + " -c 2 && arp -a"
         };
     String cmdResult = callCmd(cmd);
     result = filterMacAddress(ip,cmdResult,":");

     return result;
   }

   /**
   * 获取MAC地址
   * @return 返回MAC地址
   */
   public static String getMacAddress(String ip){
     String macAddress = "";
     macAddress = getMacInWindows(ip).trim();
     if(macAddress==null||"".equals(macAddress)){
       macAddress = getMacInLinux(ip).trim();
     }
     return macAddress;
   }

   //做个测试
   public static void main(String[] args) {
     System.out.println(getMacAddress("220.181.111.158"));
   }

}