/*
    * 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 java.util.regex.Pattern;
  import javax.validation.ConstraintValidatorContext;
  import org.apache.syncope.common.lib.types.EntityViolationType;
  import org.apache.syncope.core.persistence.api.entity.DynRealm;
  
  public class DynRealmValidator extends AbstractValidator<DynRealmCheck, DynRealm> {
  
      private static final Pattern REALM_KEY_PATTERN = Pattern.compile("^[A-Za-z0-9]+");
  
      @Override
      public boolean isValid(final DynRealm dynRealm, final ConstraintValidatorContext context) {
          context.disableDefaultConstraintViolation();
  
          boolean isValid = true;
  
          if (dynRealm.getKey().startsWith("/") || !REALM_KEY_PATTERN.matcher(dynRealm.getKey()).matches()) {
              isValid = false;
  
              context.buildConstraintViolationWithTemplate(
                      getTemplate(EntityViolationType.InvalidDynRealm,
                              "Only letters and numbers are allowed in dynamic realm key, and must not start with /")).
                      addPropertyNode("key").addConstraintViolation();
          }
  
          return isValid;
      }
  }