AdminBean.java

/*
 * This file is part of gwap, an open platform for games with a purpose
 *
 * Copyright (C) 2013
 * Project play4science
 * Lehr- und Forschungseinheit für Programmier- und Modellierungssprachen
 * Ludwig-Maximilians-Universität München
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package gwap.action;

import gwap.model.Person;

import java.io.Serializable;

import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.Query;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.log.Log;

@Name("adminBean")
@Scope(ScopeType.PAGE)
public class AdminBean implements Serializable {

	private static final long serialVersionUID = 1L;

	@Logger                  private Log log;
	@In(required=false)      private Person person;
	@In                      private EntityManager entityManager;
	
	private Boolean isAdmin;  
	
	@Create
	public void updateIsAdmin() {
		log.info("isAdmin Check");
		if ( person != null ) {
			try {
				Query query = entityManager.createNamedQuery("person.hasRole");
				query.setParameter("personId", person.getId());
				query.setParameter("role", "admin");
				Person personInRole= (Person) query.getSingleResult();
				isAdmin = personInRole != null;
			} catch (NoResultException ex) {
				isAdmin = false;
			}
		} else {
		  isAdmin = false;
		}
	}

	public Boolean getIsAdmin() {
		return isAdmin;
	}

	public void setIsAdmin(Boolean isAdmin) {
		this.isAdmin = isAdmin;
	}
}