Id theProfileId = stdController.getRecord().Id;

/*
 * User utility methods
 * 
 * 2014
 */
public class UserUtils {
  
  // Constants
  public static final String Alumni_Community_PROFILE_NAME = 'Portal Per Login User';
  public static final String Alumni_Applicant_PROFILE_NAME = 'BTC - Applicant Alumni';
  public static final String User_Applicant_PROFILE_NAME = 'BTC - Applicant User';
  public static final String Standard_User_PROFILE_NAME = 'Standard User';
  
  private static User currentUser = null;
  
  private static Id alumniCommunityProfileId = null;
  private static Id alumniApplicantProfileId = null;
  private static Id userApplicantProfileId = null;
  private static Id standardUserProfileId = null;
  
  // returns the current user's user record
  public static User getCurrentUser() {
    if (currentUser == null) {
      // add additional fields as needed
      for (User u : [select Id, ContactId, Profile.Name
              from User 
              where Id = :UserInfo.getUserId() limit 1]) {
        currentUser = u;
      }
    }
    return currentUser;
  }
  
  // returns the current user's contact id
  public static Id getCurrentUserContactId() {
    return getCurrentUser().ContactId;
  }
  
  // returns the current user's profile name
  public static String getCurrentUserProfileName() {
    return getCurrentUser().Profile.Name;
  }
  
  // returns the profile id for Alumni Community
  public static Id getAlumniCommunityProfileId() {
    if (alumniCommunityProfileId == null) {
      for (Profile p : [select Id from Profile where Name = :Alumni_Community_PROFILE_NAME limit 1]) {
        alumniCommunityProfileId = p.Id;
      }
    }
    return alumniCommunityProfileId;
  }
  
  // returns the profile id for Alumni Applicant Community
  public static Id getalumniApplicantProfileId() {
    if (alumniApplicantProfileId == null) {
      for (Profile p : [select Id from Profile where Name = :Alumni_Applicant_PROFILE_NAME limit 1]) {
        alumniApplicantProfileId = p.Id;
      }
    }
    return alumniApplicantProfileId;
  }

  // returns the profile id for User Applicant Community
  public static Id getuserApplicantProfileId() {
    if (userApplicantProfileId == null) {
      for (Profile p : [select Id from Profile where Name = :User_Applicant_PROFILE_NAME limit 1]) {
        userApplicantProfileId = p.Id;
      }
    }
    return userApplicantProfileId;
  }

  // returns the profile id for Standard User
  public static Id getStandardUserProfileId() {
    if (standardUserProfileId == null) {
      for (Profile p : [select Id from Profile where Name = :Standard_User_PROFILE_NAME limit 1]) {
        standardUserProfileId = p.Id;
      }
    }
    return standardUserProfileId;
  }
  
  // returns true if the current user is an Alumni Community user
  public static Boolean isAlumniCommunityUser() {
    return (getCurrentUserProfileName() == Alumni_Community_PROFILE_NAME); 
  }
  
  // returns true if the current user is an Alumni Applicant user
  public static Boolean isAlumniApplicantUser() {
    return (getCurrentUserProfileName() == Alumni_Applicant_PROFILE_NAME); 
  }
   
  public static User createUser(Contact contact, Id profileId, Boolean triggerUserEmail, Boolean doInsert) {

    // generate alias 
    String firstInitial = contact.FirstName == null ? '' : contact.FirstName.left(1);
    String lastName = contact.LastName == null ? '' : contact.LastName;
    String alias = (firstInitial + lastName).left(8);
    
    // generate community nickname
    String timestamp = String.valueOf(System.now().getTime());
    String communityNickname = alias + timestamp;
    
    // create the user
    User newUser = new User();
    newUser.ContactId = contact.Id;
        newUser.FirstName = contact.FirstName;
        newUser.LastName = contact.LastName;
        newUser.Username =  contact.Email;
        newUser.Email = contact.Email;
        newUser.ProfileId = profileId;
        newUser.LanguageLocaleKey = 'en_US';
        newUser.LocaleSidKey = 'en_US';
        newUser.TimeZoneSidKey = 'America/Los_Angeles';
        newUser.EmailEncodingKey = 'ISO-8859-1';
        newUser.Alias = alias;
        newUser.CommunityNickname = communityNickname;
        newUser.isActive = true;           
    
        // set the DML options to send the new user email
    Database.DMLOptions dmo = new Database.DMLOptions();
      dmo.EmailHeader.triggerUserEmail = triggerUserEmail;
      newUser.setOptions(dmo);  
    
    // insert the user
    if (doInsert) {
      insert newUser;
    }
    
    return newUser;
    
  }
  
  public static User createUser(String userFirstName, String userLastName, String email, Id profileId, Boolean triggerUserEmail, Boolean doInsert) {

    // generate alias 
    String firstInitial = userFirstName == null ? '' : userFirstName.left(1);
    String lastName = userLastName == null ? '' : userLastName;
    String alias = (firstInitial + lastName).left(8);

    // generate community nickname
    String timestamp = String.valueOf(System.now().getTime());
    String communityNickname = alias + timestamp;

    // create the user
    User newUser = new User();
        newUser.FirstName = userFirstName;
        newUser.LastName = userLastName;
        newUser.Username =  email;
        newUser.Email = email;
        newUser.ProfileId = profileId;
        newUser.LanguageLocaleKey = 'en_US';
        newUser.LocaleSidKey = 'en_US';
        newUser.TimeZoneSidKey = 'America/Los_Angeles';
        newUser.EmailEncodingKey = 'ISO-8859-1';
        newUser.Alias = alias;
        newUser.CommunityNickname = communityNickname;
        newUser.isActive = true;           

        // set the DML options to send the new user email
    Database.DMLOptions dmo = new Database.DMLOptions();
      dmo.EmailHeader.triggerUserEmail = triggerUserEmail;
      newUser.setOptions(dmo);  

    // insert the user
    if (doInsert) {
      insert newUser;
    }

    return newUser;
  }
  
  public static User createAlumniCommunityUser(Contact contact, Boolean triggerUserEmail, Boolean doInsert) {
    return createUser(contact, UserUtils.getAlumniCommunityProfileId(), triggerUserEmail, doInsert);
  }
  
  public static User createAlumniApplicantUser(Contact contact, Boolean triggerUserEmail, Boolean doInsert) {
    return createUser(contact, UserUtils.getalumniApplicantProfileId(), triggerUserEmail, doInsert);
  }
  
  public static User createStandardUser(String userFirstName, String userLastName, String email, Boolean triggerUserEmail, Boolean doInsert) {
    return createUser(userFirstName, userLastName, email, UserUtils.getStandardUserProfileId(), triggerUserEmail, doInsert);
  }  
}