/*
 * 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.superbiz.myfaces.domain.validation;

import org.apache.myfaces.extensions.cdi.core.api.Advanced;
import org.superbiz.myfaces.repository.UserRepository;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

@Advanced
@ApplicationScoped
public class UniqueUserNameValidator implements ConstraintValidator<UserName, String> {

    @Inject
    private UserRepository userRepository;

    public void initialize(UserName differentName) {
    }

    public boolean isValid(String userName, ConstraintValidatorContext constraintValidatorContext) {
        return this.userRepository.loadUser(userName) == null;
    }
}
