/*
* Copyright (C) 2015 Red Hat, Inc. and/or its affiliates.
*
* 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 org.jboss.errai.demo.todo.server;
import javax.ejb.Stateless;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.TypedQuery;
import org.jboss.errai.bus.server.annotations.Service;
import org.jboss.errai.demo.todo.shared.ShareList;
import org.jboss.errai.demo.todo.shared.ShareService;
import org.jboss.errai.demo.todo.shared.UnknownUserException;
import org.jboss.errai.demo.todo.shared.TodoListUser;
import org.jboss.errai.security.shared.service.AuthenticationService;
/**
* @author edewit@redhat.com
*/
@Stateless @Service
public class ShareServiceImpl implements ShareService {
@Inject AuthenticationService service;
@Inject EntityManager entityManager;
@Override
public void share(String email) throws UnknownUserException {
org.jboss.errai.security.shared.api.identity.User currentUser = service.getUser();
//if this was the real world we would sent a mail to the user that this todo list was just shared with him.
//but this is _only_ a demo.
final TypedQuery<TodoListUser> query = entityManager.createNamedQuery("userByEmail", TodoListUser.class);
query.setParameter("email", email);
TodoListUser user;
try {
user = query.getSingleResult();
} catch (NoResultException exception) {
throw new UnknownUserException("user with email '" + email + "' is not a registered user");
}
ShareList shareList;
try {
shareList = entityManager.createNamedQuery("mySharedLists", ShareList.class)
.setParameter("loginName", currentUser.getIdentifier()).getSingleResult();
} catch (NoResultException e) {
shareList = new ShareList();
shareList.setUser(entityManager.find(TodoListUser.class, currentUser.getIdentifier()));
}
shareList.getSharedWith().add(user);
entityManager.persist(shareList);
entityManager.flush();
}
}