content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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.apache.causeway.core.config.validators;
  
  import java.util.Optional;
  
  import jakarta.validation.ConstraintValidator;
  import jakarta.validation.ConstraintValidatorContext;
  
  import org.hibernate.validator.internal.constraintvalidators.bv.PatternValidator;
  
  import org.springframework.stereotype.Component;
  
  @Component
  public class PatternOptionalStringConstraintValidator
  implements ConstraintValidator<jakarta.validation.constraints.Pattern, Optional<String>> {
  
      private final PatternValidator patternValidator = new PatternValidator();
  
      public PatternOptionalStringConstraintValidator(){
      }
  
      @Override
      public void initialize(final jakarta.validation.constraints.Pattern constraintAnnotation) {
          patternValidator.initialize(constraintAnnotation);
      }
  
      @Override
      public boolean isValid(
              final Optional<String> value,
              final ConstraintValidatorContext context) {
          if(!value.isPresent()) return true;
          
          return patternValidator.isValid(value.get(), context);
      }
  }
  