Android Open Source - sdl_tester_android Wifi Utils

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License

The source code is released under:

Copyright (c) 2014, Ford Motor Company All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are m...

Java Source Code

package com.livio.sdl.utils;
// w w w. j  a  v  a 2 s  .c  o  m
public final class WifiUtils {

  private static final int IP_ADDRESS_MIN_LENGTH = 7;
  private static final int IP_ADDRESS_MAX_LENGTH = 15;
  
  private static final int TCP_PORT_MIN_VALUE = 0;
  private static final int TCP_PORT_MAX_VALUE = 65535;
  
  private WifiUtils(){}
  
  /**
   * Validates the input IP address string.
   * 
   * @param address The IP address string to analyze
   * @return True if this is a valid IP address, false if not
   */
  public static boolean validateIpAddress(String address){
    // address should be in the form of x.x.x.x, so at least 7 characters
    // address maximum is 255.255.255.255, so at most 15 characters
    if(address == null || address.length() < IP_ADDRESS_MIN_LENGTH || address.length() > IP_ADDRESS_MAX_LENGTH){
      return false;
    }
    
    // split the string into pieces separated by a .
    String[] pieces = address.split("\\.");
    // must have 4 numbers separated by .
    if(pieces.length != 4){
      return false;
    }
    
    // check each piece
    for(String piece : pieces){
      if(!StringUtils.isInteger(piece)){
        return false;
      }
    }
    
    return true;
  }
  
  /**
   * Validates the input TCP port string.
   * 
   * @param tcpPort The TCP port string to analyze
   * @return True if this is a valid TCP port, false if not
   */
  public static boolean validateTcpPort(String tcpPort){
    try{
      int portNumber = Integer.parseInt(tcpPort);
      if(portNumber < TCP_PORT_MIN_VALUE || portNumber > TCP_PORT_MAX_VALUE){
        return false;
      }
    }catch(NumberFormatException e){
      return false;
    }
    
    return true;
  }
}

Java Source Code List

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