public static String encodeFilterValue()

in ldap/model/src/main/java/org/apache/directory/api/ldap/model/filter/FilterEncoder.java [89:251]
136 lines of code
43 McCabe index (conditional complexity)

    public static String encodeFilterValue( String value )
    {
        StringBuilder sb = new StringBuilder( value.length() );
        boolean escaped = false;
        boolean hexPair = false;
        char hex = '\0';

        for ( int i = 0; i < value.length(); i++ )
        {
            char ch = value.charAt( i );

            switch ( ch )
            {
                case '*':
                    if ( escaped )
                    {
                        sb.append( "\\5C" );

                        if ( hexPair )
                        {
                            sb.append( hex );
                            hexPair = false;
                        }

                        escaped = false;
                    }

                    sb.append( "\\2A" );
                    break;

                case '(':
                    if ( escaped )
                    {
                        sb.append( "\\5C" );

                        if ( hexPair )
                        {
                            sb.append( hex );
                            hexPair = false;
                        }

                        escaped = false;
                    }

                    sb.append( "\\28" );
                    break;

                case ')':
                    if ( escaped )
                    {
                        sb.append( "\\5C" );

                        if ( hexPair )
                        {
                            sb.append( hex );
                            hexPair = false;
                        }

                        escaped = false;
                    }

                    sb.append( "\\29" );
                    break;

                case '\0':
                    if ( escaped )
                    {
                        sb.append( "\\5C" );

                        if ( hexPair )
                        {
                            sb.append( hex );
                            hexPair = false;
                        }

                        escaped = false;
                    }

                    sb.append( "\\00" );
                    break;

                case '\\':
                    if ( escaped )
                    {
                        sb.append( "\\5C" );
                        escaped = false;
                    }
                    else
                    {
                        escaped = true;
                        hexPair = false;
                    }

                    break;

                case '0':
                case '1':
                case '2':
                case '3':
                case '4':
                case '5':
                case '6':
                case '7':
                case '8':
                case '9':
                case 'a':
                case 'b':
                case 'c':
                case 'd':
                case 'e':
                case 'f':
                case 'A':
                case 'B':
                case 'C':
                case 'D':
                case 'E':
                case 'F':
                    if ( escaped )
                    {
                        if ( hexPair )
                        {
                            sb.append( '\\' ).append( hex ).append( ch );
                            escaped = false;
                            hexPair = false;
                        }
                        else
                        {
                            hexPair = true;
                            hex = ch;
                        }
                    }
                    else
                    {
                        sb.append( ch );
                    }

                    break;

                default:
                    if ( escaped )
                    {
                        sb.append( "\\5C" );

                        if ( hexPair )
                        {
                            sb.append( hex );
                            hexPair = false;
                        }

                        escaped = false;
                    }

                    sb.append( ch );
            }
        }

        if ( escaped )
        {
            sb.append( "\\5C" );
        }

        return sb.toString();
    }