OneLineValidator.java
- /*
- * Copyright 2020 Global Crop Diversity Trust
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package org.gringlobal.custom.validation.javax;
- import javax.validation.ConstraintValidator;
- import javax.validation.ConstraintValidatorContext;
- /**
- * @author Maxym Borodenko
- */
- public class OneLineValidator implements ConstraintValidator<OneLine, String> {
- /**
- * Initializes the validator.
- */
- @Override
- public void initialize(OneLine constraintAnnotation) {
- }
- /**
- * Implements the validation logic.
- * @return {@code false} if {@code value} contains line break characters
- */
- @Override
- public boolean isValid(String value, ConstraintValidatorContext context) {
- if (value == null) {
- return true;
- }
- return value.indexOf('\n') == -1 && value.indexOf('\r') == -1;
- }
- }