Java File Name Clean cleanFileName(final String value)

Description

clean File Name

License

Apache License

Declaration

public static String cleanFileName(final String value) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

public class Main {
    public static String cleanFileName(final String value) {
        assert value != null;
        final StringBuilder sb = new StringBuilder();
        for (int i = 0; i < value.length(); i++) {
            final char ch = value.charAt(i);
            if ((ch >= 'A') && (ch <= 'z')) {
                sb.append(ch);//from w  w  w .  j  a  va  2s.c o  m
            }
            if ((ch >= '0') && (ch <= '9')) {
                sb.append(ch);
            }
        }
        return sb.toString();
    }

    /**
     * Extends or truncate string to length if necessary and add to the string
     * builder.
     * 
     * @param sb
     * @param str
     * @param length
     */
    public static void append(final StringBuilder sb, final String str, final int length) {
        assert sb != null;
        if (str == null) {
            for (int i = 0; i < length; i++) {
                sb.append(' ');
            }
        } else {
            final int sl = str.length();
            if (sl < length) {
                sb.append(str);
                for (int i = sl; i < length; i++) {
                    sb.append(' ');
                }
            } else {
                sb.append(str.subSequence(0, length));
            }
        }

    }
}

Related

1. cleanFileName(final String originalFileName)
2. cleanFileName(String arg)
3. cleanFileName(String badFileName)
4. cleanFilename(String filename)
5. cleanFileName(String filename)