/*
    * 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.syncope.core.persistence.jpa.validation.entity;
  
  import javax.validation.ConstraintValidatorContext;
  import org.apache.syncope.common.lib.types.EntityViolationType;
  import org.apache.syncope.core.persistence.api.entity.PlainAttr;
  
  public class JPAPlainAttrValidator extends AbstractValidator<PlainAttrCheck, PlainAttr<?>> {
  
      @Override
      public boolean isValid(final PlainAttr<?> attr, final ConstraintValidatorContext context) {
          context.disableDefaultConstraintViolation();
  
          boolean isValid;
          if (attr == null) {
              isValid = true;
          } else {
              if (attr.getSchema().isUniqueConstraint()) {
                  isValid = attr.getValues().isEmpty() && attr.getUniqueValue() != null;
              } else {
                  isValid = !attr.getValues().isEmpty() && attr.getUniqueValue() == null;
  
                  if (!attr.getSchema().isMultivalue()) {
                      isValid &= attr.getValues().size() == 1;
                  }
              }
  
              if (!isValid) {
                  LOG.error("Invalid values for attribute schema={}, values={}",
                          attr.getSchema().getKey(), attr.getValuesAsStrings());
  
                  context.buildConstraintViolationWithTemplate(
                          getTemplate(EntityViolationType.InvalidValueList,
                                  "Invalid values " + attr.getValuesAsStrings())).
                          addPropertyNode(attr.getSchema().getKey()).addConstraintViolation();
              }
          }
  
          return isValid;
      }
  }