org.batoo.jpa.core.BatooPersistenceProvider.java Source code

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Here is the source code for org.batoo.jpa.core.BatooPersistenceProvider.java

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/*
 * Copyright (c) 2012 - Batoo Software ve Consultancy Ltd.
 * 
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.batoo.jpa.core;

import java.util.Map;

import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceException;
import javax.persistence.spi.PersistenceProvider;
import javax.persistence.spi.PersistenceUnitInfo;
import javax.persistence.spi.ProviderUtil;

import org.apache.commons.lang.StringUtils;
import org.batoo.jpa.common.BatooException;
import org.batoo.jpa.common.log.BLogger;
import org.batoo.jpa.common.log.BLoggerFactory;
import org.batoo.jpa.core.impl.manager.EntityManagerFactoryImpl;
import org.batoo.jpa.core.impl.manager.PersistenceUtilImpl;
import org.batoo.jpa.parser.MappingException;
import org.batoo.jpa.parser.PersistenceParser;

/**
 * Implementation of {@link PersistenceProvider}.
 * 
 * @author hceylan
 * @since $version
 */
public class BatooPersistenceProvider implements PersistenceProvider {

    private static final BLogger LOG = BLoggerFactory.getLogger(BatooPersistenceProvider.class);

    private final ProviderUtil providerUtil;

    /**
     * 
     * @since $version
     * @author hceylan
     */
    public BatooPersistenceProvider() {
        super();

        this.providerUtil = new PersistenceUtilImpl();
    }

    /**
     * {@inheritDoc}
     * 
     */
    @Override
    @SuppressWarnings("rawtypes")
    public EntityManagerFactoryImpl createContainerEntityManagerFactory(PersistenceUnitInfo info, Map map) {
        try {
            final PersistenceParser parser = new org.batoo.jpa.parser.PersistenceParserImpl(info, null);

            return StringUtils.isNotBlank(parser.getJtaDatasource()) ? //
                    new org.batoo.jpa.core.impl.manager.JtaEntityManagerFactoryImpl(info.getPersistenceUnitName(),
                            parser)
                    : new EntityManagerFactoryImpl(info.getPersistenceUnitName(), parser);
        } catch (final Throwable e) {
            if ((e instanceof PersistenceException) || (e instanceof MappingException)
                    || (e instanceof BatooException)) {
                throw (RuntimeException) e;
            }

            BatooPersistenceProvider.LOG.info(e,
                    "Unable to find Batoo JPA persistence unit: " + info.getPersistenceUnitName());

            return null;
        }
    }

    /**
     * {@inheritDoc}
     * 
     */
    @Override
    @SuppressWarnings("rawtypes")
    public EntityManagerFactory createEntityManagerFactory(String emName, Map map) {
        try {
            // create the persistence parser
            final PersistenceParser parser = new org.batoo.jpa.parser.PersistenceParserImpl(emName);

            // finally, create the entity manager factory
            return new EntityManagerFactoryImpl(emName, parser);
        } catch (final Throwable e) {
            if ((e instanceof PersistenceException) || (e instanceof MappingException)
                    || (e instanceof BatooException)) {
                throw (RuntimeException) e;
            }

            BatooPersistenceProvider.LOG.info(e, "Unable to find Batoo JPA persistence unit: " + emName);

            return null;
        }
    }

    /**
     * Creates a persistence unit without persistence.xml file. Suitable for non-standard platforms such as Android.
     * 
     * @param emName
     *            the name of the persistence unit
     * @param map
     *            the properties
     * @param classes
     *            the list of classes
     * @return the entity manager factory
     * 
     * @since $version
     * @author hceylan
     */
    public EntityManagerFactory createEntityManagerFactory(String emName, Map<String, String> map,
            String[] classes) {
        try {
            // create the persistence parser
            final PersistenceParser parser = new org.batoo.jpa.parser.AndroidPersistenceParserImpl(map, classes);

            // finally, create the entity manager factory
            return new EntityManagerFactoryImpl(emName, parser);
        } catch (final Throwable e) {
            if ((e instanceof PersistenceException) || (e instanceof MappingException)
                    || (e instanceof BatooException)) {
                throw (RuntimeException) e;
            }

            BatooPersistenceProvider.LOG.info(e, "Unable to build persistence unit: " + emName);

            return null;
        }
    }

    /**
     * {@inheritDoc}
     * 
     */
    @Override
    public ProviderUtil getProviderUtil() {
        return this.providerUtil;
    }
}