Java String Sanitize sanitize(String str)

Description

sanitize

License

Apache License

Declaration

static String sanitize(String str) 

Method Source Code

//package com.java2s;
/*//from w w  w . j  a v  a  2s .  co m
 * Copyright 2016, Google Inc.
 * 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 {
    static final int MAX_LENGTH = 255;
    static final char UNPRINTABLE_CHAR_SUBSTITUTE = '_';

    static String sanitize(String str) {
        if (str.length() > MAX_LENGTH) {
            str = str.substring(0, MAX_LENGTH);
        }
        if (isPrintableString(str)) {
            return str;
        }
        StringBuilder builder = new StringBuilder(str.length());
        for (int i = 0; i < str.length(); i++) {
            char ch = str.charAt(i);
            builder.append(isPrintableChar(ch) ? ch : UNPRINTABLE_CHAR_SUBSTITUTE);
        }
        return builder.toString();
    }

    private static boolean isPrintableString(String str) {
        for (int i = 0; i < str.length(); i++) {
            if (!isPrintableChar(str.charAt(i))) {
                return false;
            }
        }
        return true;
    }

    private static boolean isPrintableChar(char ch) {
        return ch >= ' ' && ch <= '~';
    }
}

Related

1. sanitize(String s)
2. sanitize(String s)
3. sanitize(String s)
4. sanitize(String s, boolean allowColorCodes)
5. sanitize(String source)
6. sanitize(String string)
7. sanitize(String string, boolean allowWhitespace)
8. sanitize(String string, String spaceReplace)
9. sanitize(String text)