public ValidationResult validate()

in src/main/java/org/apache/nifi/processor/util/StandardValidators.java [499:523]

• 24 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("Data Size cannot be null")
                        .build();
            }
            if (DATA_SIZE_PATTERN.matcher(input.toUpperCase()).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 <Data Size> <Data Unit> where <Data Size>"
                                + " is a non-negative integer and <Data Unit> is a supported Data"
                                + " Unit, such as: B, KB, MB, GB, TB")
                        .build();
            }
        }