Java String Blur blur(String s)

Description

replaces everything but the first and last letter of the input string s by '.'

License

Apache License

Declaration

public static String blur(String s) 

Method Source Code

//package com.java2s;
/*/* w  w  w  . j a v  a 2  s.  c  o m*/
 Copyright (C) 2012 The Stanford MobiSocial Laboratory
    
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
    
   http://www.apache.org/licenses/LICENSE-2.0
    
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

public class Main {
    public static boolean BLUR = true;

    /** replaces everything but the first and last letter of the input string s by '.'
     * useful for bluring potentially sensitive information that is needed in log files
     * like email folder names
     * e.g. SECRET is returned as S....T
     */
    public static String blur(String s) {
        if (!BLUR)
            return s;

        if (s == null || s.length() <= 1)
            return s;
        char c[] = s.toCharArray();
        for (int i = 1; i < s.length() - 1; i++)
            c[i] = '.';
        return new String(c);
    }
}

Related

1. blurKeepingExtension(String s)