    001/**
    002 * Licensed under the Apache License, Version 2.0 (the "License");
    003 * you may not use this file except in compliance with the License.
    004 * You may obtain a copy of the License at
    005 *
    006 *     http://www.apache.org/licenses/LICENSE-2.0
    007 *
    008 * Unless required by applicable law or agreed to in writing, software
    009 * distributed under the License is distributed on an "AS IS" BASIS,
    010 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    011 * See the License for the specific language governing permissions and
    012 * limitations under the License.
    013 */
    014package org.apache.tapestry5.internal.jpa;
    015
    016import java.lang.reflect.Method;
    017
    018import javax.annotation.PreDestroy;
    019import javax.enterprise.context.spi.Contextual;
    020import javax.enterprise.context.spi.CreationalContext;
    021import javax.enterprise.inject.spi.AnnotatedType;
    022import javax.enterprise.inject.spi.InjectionTarget;
    023
    024import org.apache.tapestry5.commons.ObjectLocator;
    025import org.apache.tapestry5.ioc.annotations.Inject;
    026import org.slf4j.Logger;
    027import org.slf4j.LoggerFactory;
    028
    029public class TapestryCDIBeanManagerForJPAEntityListeners extends NoopBeanManager
    030{
    031    private static final Logger logger = LoggerFactory
    032            .getLogger(TapestryCDIBeanManagerForJPAEntityListeners.class);
    033
    034    @Inject
    035    private ObjectLocator objectLocator;
    036
    037    @Override
    038    public <T> AnnotatedType<T> createAnnotatedType(final Class<T> type)
    039    {
    040        return new NoopAnnotatedType<T>()
    041        {
    042            @Override
    043            public Class<T> getJavaClass()
    044            {
    045                return type;
    046            }
    047        };
    048    }
    049
    050    @Override
    051    public <T> InjectionTarget<T> createInjectionTarget(final AnnotatedType<T> type)
    052    {
    053        return new NoopInjectionTarget<T>()
    054        {
    055            @Override
    056            public T produce(CreationalContext<T> ctx)
    057            {
    058                return objectLocator.autobuild(type.getJavaClass());
    059            }
    060
    061            @Override
    062            public void preDestroy(T instance)
    063            {
    064                try
    065                {
    066                    for (Method method : type.getJavaClass().getMethods())
    067                    {
    068                        if (method.getAnnotation(PreDestroy.class) != null)
    069                        {
    070                            method.invoke(instance);
    071                        }
    072                    }
    073                }
    074                catch (Exception e)
    075                {
    076                    logger.error(
    077                            "Error invoking @PreDestroy callback on instance of class "
    078                                    + type.getJavaClass(), e);
    079                }
    080            }
    081        };
    082    }
    083
    084    @Override
    085    public <T> CreationalContext<T> createCreationalContext(Contextual<T> contextual)
    086    {
    087        return new NoopCreationalContext<T>();
    088    }
    089}