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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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*/
package org.apache.myfaces.flow.cdi;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.spi.AfterBeanDiscovery;
import javax.enterprise.inject.spi.AfterDeploymentValidation;
import javax.enterprise.inject.spi.AnnotatedType;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.BeforeBeanDiscovery;
import javax.enterprise.inject.spi.Extension;
import javax.enterprise.inject.spi.ProcessBean;
import javax.faces.flow.FlowScoped;
import org.apache.myfaces.flow.FlowReference;
/**
*
* @author Leonardo Uribe
*/
public class FlowScopeCDIExtension implements Extension
{
private FlowScopedContextImpl flowScopedContext;
private Map<Class, FlowReference> flowBeanReferences;
public FlowScopeCDIExtension()
{
flowBeanReferences = new ConcurrentHashMap<Class, FlowReference>();
}
void beforeBeanDiscovery(
@Observes final BeforeBeanDiscovery event, BeanManager beanManager)
{
event.addScope(FlowScoped.class, true, true);
// Register FlowBuilderFactoryBean as a bean with CDI annotations, so the system
// can take it into account, and use it later when necessary.
AnnotatedType bean = beanManager.createAnnotatedType(FlowScopeBeanHolder.class);
event.addAnnotatedType(bean);
}
void onProcessBean(@Observes ProcessBean event, BeanManager manager)
{
// Register all beans who are annotated with FlowScoped and has a flow reference
// restriction, to take it into account later when it is created and store it
// in the right context so @PreDestroy is called when the referenced flow is.
if (event.getAnnotated().isAnnotationPresent(FlowScoped.class))
{
FlowScoped flowScoped = event.getAnnotated().getAnnotation(FlowScoped.class);
String flowId = flowScoped.value();
if (flowId != null)
{
flowBeanReferences.put(event.getBean().getBeanClass(), new FlowReference(
flowScoped.definingDocumentId(), flowId));
}
}
}
void afterBeanDiscovery(@Observes AfterBeanDiscovery event, BeanManager manager)
{
flowScopedContext = new FlowScopedContextImpl(manager, flowBeanReferences);
event.addContext(flowScopedContext);
}
void initializeFlowContexts(@Observes AfterDeploymentValidation adv, BeanManager beanManager)
{
//FlowScopeBeanHolder flowScopeBeanHolder = BeanProvider.getContextualReference(
// beanManager, FlowScopeBeanHolder.class, false);
//flowScopedContext.initFlowContext(flowScopeBeanHolder);
}
}