private Long safelyParse()

in src/main/java/org/apache/sling/xss/impl/LongValidationRule.java [70:102]
25 lines of code
8 McCabe index (conditional complexity)

    private Long safelyParse(String context, String input) throws ValidationException {
        // do not allow empty Strings such as "   " - so trim to ensure
        // isEmpty catches "    "
        if (input != null) input = input.trim();

        if ( StringUtilities.isEmpty(input) ) {
            if (allowNull) {
                return null;
            }
            throw new ValidationException( context + ": Input number required", "Input number required: context=" + context + ", input=" + input, context );
        }

        // canonicalize
        String canonical = encoder.canonicalize( input );

        if (minValue > maxValue) {
            throw new ValidationException( context + ": Invalid number input: context", "Validation parameter error for number: maxValue ( " + maxValue + ") must be greater than minValue ( " + minValue + ") for " + context, context );
        }

        // validate min and max
        try {
            long i = Long.parseLong(canonical);
            if (i < minValue) {
                throw new ValidationException( "Invalid number input must be between " + minValue + " and " + maxValue + ": context=" + context, "Invalid number input must be between " + minValue + " and " + maxValue + ": context=" + context + ", input=" + input, context );
            }
            if (i > maxValue) {
                throw new ValidationException( "Invalid number input must be between " + minValue + " and " + maxValue + ": context=" + context, "Invalid number input must be between " + minValue + " and " + maxValue + ": context=" + context + ", input=" + input, context );
            }
            return i;
        } catch (NumberFormatException e) {
            throw new ValidationException( context + ": Invalid number input", "Invalid number input format: context=" + context + ", input=" + input, e, context);
        }
    }