MySports Admin/src/example/mysports/admin/services/HostedLeagueRepository.java

/*******************************************************************************
 * Copyright (c) 2010-2012 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the 
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 
 * which accompanies this distribution. 
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at 
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *  dclarke - EclipseLink 2.4 - MySports Demo Bug 344608
 ******************************************************************************/
package example.mysports.admin.services;

import java.io.InputStream;
import java.io.StringWriter;
import java.util.List;

import javax.annotation.ManagedBean;
import javax.annotation.sql.DataSourceDefinition;
import javax.enterprise.context.ApplicationScoped;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceUnit;
import javax.ws.rs.PathParam;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;

import org.eclipse.persistence.jaxb.xmlmodel.XmlBindings;

import example.mysports.admin.jaxrs.MappingsLoader;
import example.mysports.admin.model.HostedLeague;
import example.mysports.admin.model.Style;

/**
 * 
 * @author dclarke
 * @since EclipseLink 2.4
 */
@ManagedBean
@ApplicationScoped
public class HostedLeagueRepository {

    @PersistenceUnit(unitName = "mysports-admin")
    private EntityManagerFactory emf;

    public EntityManagerFactory getEmf() {
        return this.emf;
    }

    public void setEmf(EntityManagerFactory emf) {
        this.emf = emf;
    }

    public List<HostedLeague> allLeagues() {
        EntityManager em = getEmf().createEntityManager();
        try {
            return em.createNamedQuery("HostedLeague.findAll", HostedLeague.class).getResultList();
        } finally {
            em.close();
        }
    }

    public List<HostedLeague> allSharedLeagues() {
        EntityManager em = getEmf().createEntityManager();
        try {
            return em.createNamedQuery("HostedLeague.findAllShared", HostedLeague.class).getResultList();
        } finally {
            em.close();
        }
    }

    public HostedLeague getLeague(String leagueId) {
        EntityManager em = getEmf().createEntityManager();
        try {
            return em.find(HostedLeague.class, leagueId);
        } finally {
            em.close();
        }
    }

    public HostedLeague delete(String leagueId) {
        EntityManager em = getEmf().createEntityManager();
        try {
            HostedLeague league = em.find(HostedLeague.class, leagueId);

            if (league != null) {
                em.getTransaction().begin();
                em.remove(league);
                em.getTransaction().commit();
            }
            return league;
        } finally {
            em.close();
        }
    }

    public HostedLeague create(String id, String name, String scheme) {
        EntityManager em = getEmf().createEntityManager();

        try {
            em.getTransaction().begin();
            HostedLeague league = new HostedLeague(id, name, scheme);
            em.persist(league);
            em.getTransaction().commit();

            return league;
        } finally {
            em.close();
        }
    }

    public HostedLeague update(HostedLeague league) {
        EntityManager em = getEmf().createEntityManager();

        try {
            em.getTransaction().begin();
            league = em.merge(league);
            em.getTransaction().commit();

            return league;
        } finally {
            em.close();
        }
    }

    public String getORM(String leagueId) {
        EntityManager em = getEmf().createEntityManager();

        try {
            return MappingsLoader.getORMapping(em, leagueId);
        } finally {
            em.close();
        }
    }

    public XmlBindings getOXM(String leagueId) {
        EntityManager em = getEmf().createEntityManager();

        try {
            return MappingsLoader.getXMLBindings(em, leagueId);
        } finally {
            em.close();
        }
    }

    public String getOXMString(String leagueId) throws JAXBException {
        XmlBindings xmlBindings = getOXM(leagueId);
        JAXBContext jc = JAXBContext.newInstance(xmlBindings.getClass().getPackage().getName());
        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        StringWriter sw = new StringWriter();
        marshaller.marshal(xmlBindings, sw);
        return sw.toString();
    }

    public String getCSS(String leagueId) {
        EntityManager em = getEmf().createEntityManager();

        try {
            HostedLeague league = em.find(HostedLeague.class, leagueId);
            Style style = null;

            if (league != null && league.getColourScheme() != null) {
                style = em.find(Style.class, league.getColourScheme());
            }
            if (style == null) {
                em.find(Style.class, "default");
            }

            return style.getCss();
        } finally {
            em.close();
        }
    }

    public InputStream getLogo(@PathParam("league") String leagueId) {
        return Thread.currentThread().getContextClassLoader().getResourceAsStream(leagueId.toLowerCase() + ".png");
    }

}