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2016-07-31 12:06:17 +02:00
/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* 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 baeldung.service;
import baeldung.data.MemberRepository;
import baeldung.data.SecondaryPersistenceUnit;
import baeldung.model.Member;
import baeldung.model.QMember;
import javax.ejb.Stateless;
import javax.enterprise.event.Event;
import javax.enterprise.inject.Default;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.ValidationException;
import javax.validation.Validator;
import java.util.HashSet;
import java.util.Set;
import java.util.logging.Logger;
@Stateless
public class MemberRegistration {
@Inject
private Logger log;
@Inject
private MemberRepository repository;
@Inject
private Event<Member> memberEventSrc;
@Inject
private Validator validator;
private void validateMember(Member member) throws ConstraintViolationException, ValidationException {
// Create a bean validator and check for issues.
Set<ConstraintViolation<Member>> violations = validator.validate(member);
if (!violations.isEmpty()) {
throw new ConstraintViolationException(new HashSet<ConstraintViolation<?>>(violations));
}
// Check the uniqueness of the email address
if (emailAlreadyExists(member.getEmail())) {
throw new ValidationException("Unique Email Violation");
}
}
public void register(Member member) throws Exception {
log.info("Registering " + member.getName());
validateMember(member);
repository.save(member);
memberEventSrc.fire(member);
}
public boolean emailAlreadyExists(String email) {
Member member = null;
try {
member = repository.findByEmail(email);
} catch (NoResultException e) {
// ignore
}
return member != null;
}
}