public ValidationResult validate()

in src/main/java/org/apache/nifi/processor/util/StandardValidators.java [115:132]

• 15 lines of code
• 5 McCabe index (conditional complexity)

        public ValidationResult validate(final String subject, final String value, final ValidationContext context) {
            if (context.isExpressionLanguageSupported(subject) && context.isExpressionLanguagePresent(value)) {
                return new ValidationResult.Builder().subject(subject).input(value).explanation("Expression Language Present").valid(true).build();
            }

            String reason = null;
            try {
                final long longVal = Long.parseLong(value);

                if (longVal <= 0) {
                    reason = "not a positive value";
                }
            } catch (final NumberFormatException e) {
                reason = "not a valid 64-bit integer";
            }

            return new ValidationResult.Builder().subject(subject).input(value).explanation(reason).valid(reason == null).build();
        }