// Copyright 2011-2014 The Apache Software Foundation
//
// 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.apache.tapestry5.jpa.modules;
import org.apache.tapestry5.ValueEncoder;
import org.apache.tapestry5.internal.InternalConstants;
import org.apache.tapestry5.internal.jpa.*;
import org.apache.tapestry5.internal.services.PersistentFieldManager;
import org.apache.tapestry5.ioc.*;
import org.apache.tapestry5.ioc.annotations.*;
import org.apache.tapestry5.ioc.services.*;
import org.apache.tapestry5.jpa.*;
import org.apache.tapestry5.services.*;
import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
import org.slf4j.Logger;
import javax.persistence.EntityManagerFactory;
import javax.persistence.metamodel.EntityType;
import javax.persistence.metamodel.Metamodel;
import javax.persistence.spi.PersistenceUnitInfo;
import java.util.Collection;
/**
* Defines core services for JPA support.
*
* @since 5.3
*/
public class JpaModule
{
public static void bind(final ServiceBinder binder)
{
binder.bind(JpaTransactionAdvisor.class, JpaTransactionAdvisorImpl.class);
binder.bind(PersistenceUnitConfigurer.class, PackageNamePersistenceUnitConfigurer.class).withSimpleId();
binder.bind(EntityManagerSource.class, EntityManagerSourceImpl.class);
}
public static JpaEntityPackageManager buildJpaEntityPackageManager(final Collection<String> packageNames)
{
return new JpaEntityPackageManager()
{
@Override
public Collection<String> getPackageNames()
{
return packageNames;
}
};
}
@Scope(ScopeConstants.PERTHREAD)
public static EntityManagerManager buildEntityManagerManager(final EntityManagerSource entityManagerSource,
final PerthreadManager perthreadManager, final Logger logger)
{
final EntityManagerManagerImpl service = new EntityManagerManagerImpl(entityManagerSource, logger);
perthreadManager.addThreadCleanupListener(service);
return service;
}
@Contribute(JpaEntityPackageManager.class)
public static void provideEntityPackages(Configuration<String> configuration,
@Symbol(InternalConstants.TAPESTRY_APP_PACKAGE_PARAM)
String appRootPackage)
{
configuration.add(appRootPackage + ".entities");
}
@Contribute(PersistentFieldManager.class)
public static void provideEntityPersistentFieldStrategies(
final MappedConfiguration<String, PersistentFieldStrategy> configuration)
{
configuration.addInstance(JpaPersistenceConstants.ENTITY, EntityPersistentFieldStrategy.class);
}
@Contribute(ApplicationStatePersistenceStrategySource.class)
public void provideApplicationStatePersistenceStrategies(
final MappedConfiguration<String, ApplicationStatePersistenceStrategy> configuration)
{
configuration.addInstance(JpaPersistenceConstants.ENTITY, EntityApplicationStatePersistenceStrategy.class);
}
@Contribute(ComponentClassTransformWorker2.class)
@Primary
public static void provideClassTransformWorkers(OrderedConfiguration<ComponentClassTransformWorker2> configuration)
{
configuration.addInstance("PersistenceContext", PersistenceContextWorker.class, "after:Property");
configuration.addInstance("JPACommitAfter", CommitAfterWorker.class, "after:Log");
}
@Contribute(MasterObjectProvider.class)
public static void provideObjectProviders(final OrderedConfiguration<ObjectProvider> configuration)
{
configuration.addInstance("EntityManager", EntityManagerObjectProvider.class,
"before:AnnotationBasedContributions");
}
@Contribute(SymbolProvider.class)
@FactoryDefaults
public static void provideFactoryDefaults(final MappedConfiguration<String, String> configuration)
{
configuration.add(JpaSymbols.PROVIDE_ENTITY_VALUE_ENCODERS, "true");
configuration.add(JpaSymbols.EARLY_START_UP, "true");
configuration.add(JpaSymbols.ENTITY_SESSION_STATE_PERSISTENCE_STRATEGY_ENABLED, "true");
configuration.add(JpaSymbols.PERSISTENCE_DESCRIPTOR, "/META-INF/persistence.xml");
}
@Contribute(ValueEncoderSource.class)
public static void provideValueEncoders(final MappedConfiguration<Class, ValueEncoderFactory> configuration,
@Symbol(JpaSymbols.PROVIDE_ENTITY_VALUE_ENCODERS)
final boolean provideEncoders, final EntityManagerSource entityManagerSource,
final EntityManagerManager entityManagerManager, final TypeCoercer typeCoercer,
final PropertyAccess propertyAccess, final LoggerSource loggerSource)
{
if (!provideEncoders)
return;
for (final PersistenceUnitInfo info : entityManagerSource.getPersistenceUnitInfos())
{
final EntityManagerFactory emf = entityManagerSource.getEntityManagerFactory(info.getPersistenceUnitName());
final Metamodel metamodel = emf.getMetamodel();
for (final EntityType<?> entity : metamodel.getEntities())
{
final Class<?> javaType = entity.getJavaType();
final ValueEncoderFactory factory = new ValueEncoderFactory()
{
@Override
public ValueEncoder create(final Class type)
{
return new JpaValueEncoder(entity, entityManagerManager, info.getPersistenceUnitName(),
propertyAccess, typeCoercer, loggerSource.getLogger(javaType));
}
};
configuration.add(javaType, factory);
}
}
}
@Contribute(ApplicationStateManager.class)
public static void provideApplicationStateContributions(
final MappedConfiguration<Class, ApplicationStateContribution> configuration,
final EntityManagerSource entityManagerSource,
@Symbol(JpaSymbols.ENTITY_SESSION_STATE_PERSISTENCE_STRATEGY_ENABLED)
final boolean entitySessionStatePersistenceStrategyEnabled)
{
if (!entitySessionStatePersistenceStrategyEnabled)
return;
for (final PersistenceUnitInfo info : entityManagerSource.getPersistenceUnitInfos())
{
final EntityManagerFactory emf = entityManagerSource.getEntityManagerFactory(info.getPersistenceUnitName());
final Metamodel metamodel = emf.getMetamodel();
for (EntityType<?> entity : metamodel.getEntities())
{
configuration.add(entity.getJavaType(), new ApplicationStateContribution(JpaPersistenceConstants.ENTITY));
}
}
}
@Startup
public static void startupEarly(final EntityManagerManager entityManagerManager, @Symbol(JpaSymbols.EARLY_START_UP)
final boolean earlyStartup)
{
if (earlyStartup)
{
entityManagerManager.getEntityManagers();
}
}
}