Android Open Source - clinicalguide Registration Validator

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Back to project page clinicalguide.

License

The source code is released under:

Apache License

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Java Source Code

package org.get.oxicam.clinicalguide.db;
// w  w w . j  a  va  2  s  .c o  m
/**
 * Responsible for validating the username and password during registration.
 * 
 * @author Andrew Kim
 * @version 1.0
 */
public class RegistrationValidator {
  
  public static final int MIN_USERNAME_LENG = 3;
  public static final int MIN_PW_LENG = 3;
  
  /**
   * Validate the given user name.
   * 
   * @param username - The user name to validate.
   * @throws Exception
   *       Exception if the username length is < MIN_USERNAME_LENG
   *       Exception if the username does not meet the combination requirement.
   */
  public void validateUsername(String username) throws Exception {
    if(username.length() < MIN_USERNAME_LENG) {
      throw new Exception("User name must be at least " + MIN_USERNAME_LENG + " characters long.");
    } else if(!checkUsernameComb(username)) {
      throw new Exception("User name must only consist of alphabets and numbers.");
    }
  }
  
  /**
   * Validate the given password.
   * 
   * @param password - The password chosen by the user.
   * @param confirmPassword - The password confirmed by the user.
   * @throws Exception
   *       Exception if the password != confirmPassword.
   *       Exception if the password length is < MIN_PW_LENG.
   *       Exception if the password does not meet the combination requirement.
   */
  public void validatePassword(String password, String confirmPassword) throws Exception {
    if(password.length() < MIN_PW_LENG) {
      throw new Exception("Password must be at least " + MIN_PW_LENG + " characters long.");
    } else if(!checkPWComb(password)) {
      throw new Exception(""); // place holder; put error message for password combination here
    } else if (!password.equals(confirmPassword)) {
      throw new Exception("Passwords do not match.");
    }
  }
  
  /**
   * Check the username for character combination.
   * 
   * @param username - The username to check for combination.
   * @return False if it does not meet the requirement; true otherwise.
   */
  public boolean checkUsernameComb(String username) {
    for(int i = 0; i < username.length(); ++i) {
      char c = username.charAt(i);
      if(!Character.isLetterOrDigit(c)) {
        return false;
      }
    }
    return true;
  }
  
  /**
   * Check the password for character combination.
   * 
   * @param password - The password to check for combination.
   * @return False if it does not meet the requirement; true otherwise.
   */
  public boolean checkPWComb(String password) {
    for(int i = 0; i < password.length(); ++i) {
      char c = password.charAt(i);
      if(!Character.isLetterOrDigit(c)) {
        return false;
      }
    }
    return true;
  }
}

Java Source Code List