org.key2gym.business.services.AdministratorsServiceBean.java Source code

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Here is the source code for org.key2gym.business.services.AdministratorsServiceBean.java

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/*
 * Copyright 2012-2013 Danylo Vashchilenko
 *
 * 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.key2gym.business.services;

import java.util.ArrayList;
import java.util.List;

import javax.annotation.security.RolesAllowed;
import javax.persistence.NoResultException;

import org.key2gym.business.api.SecurityRoles;
import org.key2gym.business.api.ValidationException;
import org.key2gym.business.api.dtos.AdministratorDTO;
import org.key2gym.business.api.services.AdministratorsService;
import org.key2gym.business.entities.Group;
import org.key2gym.business.entities.Administrator;
import org.springframework.stereotype.Service;

/**
 * 
 * @author Danylo Vashchilenko
 */
@Service("org.key2gym.business.api.services.AdministratorsService")
@RolesAllowed({ SecurityRoles.JUNIOR_ADMINISTRATOR, SecurityRoles.SENIOR_ADMINISTRATOR, SecurityRoles.MANAGER })
public class AdministratorsServiceBean extends BasicBean implements AdministratorsService {

    @Override
    public AdministratorDTO getById(Integer id) {

        if (id == null) {
            throw new NullPointerException("The id is null."); // NOI18N
        }

        Administrator administrator = getEntityManager().find(Administrator.class, id);

        // TODO: null check here

        return convertToDTO(administrator);
    }

    @Override
    public AdministratorDTO getByUsername(String username) throws ValidationException {

        if (username == null) {
            throw new NullPointerException("The username is null."); // NOI18N
        }

        Administrator administrator;

        try {
            administrator = (Administrator) getEntityManager().createNamedQuery("Administrator.findByUsername")
                    .setParameter("username", username).getSingleResult();
        } catch (NoResultException ex) {
            throw new ValidationException(getString("Invalid.Administrator.Username"));
        }

        return convertToDTO(administrator);
    }

    @Override
    public AdministratorDTO getCurrent() {
        try {
            return getByUsername(getCallerPrincipal());
        } catch (ValidationException ex) {
            throw new RuntimeException("The session's principal is not a valid administrator's username", ex);
        }
    }

    protected AdministratorDTO convertToDTO(Administrator entityAdministrator) {
        AdministratorDTO administrator = new AdministratorDTO();
        administrator.setFullName(entityAdministrator.getFullName());
        administrator.setId(entityAdministrator.getId());
        administrator.setNote(entityAdministrator.getNote());
        administrator.setUserName(entityAdministrator.getUsername());

        List<String> roles = new ArrayList(entityAdministrator.getGroups().size());
        for (Group group : entityAdministrator.getGroups()) {
            roles.add(group.getName());
        }
        administrator.setRoles(roles);
        return administrator;
    }

}