public ValidationResult validate()

in src/main/java/org/apache/nifi/processor/util/StandardValidators.java [472:492]

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

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

            if (input == null) {
                return new ValidationResult.Builder().subject(subject).input(input).valid(false).explanation("Time Period cannot be null").build();
            }
            if (TIME_DURATION_PATTERN.matcher(input.toLowerCase()).matches()) {
                return new ValidationResult.Builder().subject(subject).input(input).valid(true).build();
            } else {
                return new ValidationResult.Builder()
                        .subject(subject)
                        .input(input)
                        .valid(false)
                        .explanation("Must be of format <duration> <TimeUnit> where <duration> is a "
                                + "non-negative integer and TimeUnit is a supported Time Unit, such "
                                + "as: nanos, millis, secs, mins, hrs, days")
                        .build();
            }
        }