/*
* 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
* under the License.
*/
package org.apache.myfaces.cdi.util;
import java.util.Set;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.validator.Validator;
import org.apache.myfaces.cdi.dependent.AbstractBeanStorage;
import org.apache.myfaces.cdi.dependent.DependentBeanEntry;
import org.apache.myfaces.cdi.dependent.RequestDependentBeanStorage;
import org.apache.myfaces.shared.config.MyfacesConfig;
import org.apache.myfaces.util.ExternalSpecifications;
/**
*
*/
public class CDIExternalArtifactResolver extends ExternalArtifactResolver
{
public static final String JAVAX_FACES_CONVERT_PACKAGE_NAME = "javax.faces.convert";
public static final String JAVAX_FACES_VALIDATOR_PACKAGE_NAME = "javax.faces.validator";
private Boolean managedConvertersEnabled;
private Boolean managedValidatorsEnabled;
public CDIExternalArtifactResolver()
{
initConverterInjectionEnabled();
initValidatorInjectionEnabled();
}
private boolean isManagedConvertersEnabled()
{
if (managedConvertersEnabled != null)
{
return managedConvertersEnabled;
}
//initConverterInjectionEnabled();
return managedConvertersEnabled;
}
private void initConverterInjectionEnabled()
{
if (managedConvertersEnabled != null)
{
return;
}
managedConvertersEnabled = MyfacesConfig.getCurrentInstance(
FacesContext.getCurrentInstance().getExternalContext()).isCdiManagedConvertersEnabled();
}
public Converter resolveManagedConverter(Class<? extends Converter> converterClass)
{
if (!isManagedConvertersEnabled())
{
return null;
}
ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
if (!ExternalSpecifications.isCDIAvailable(externalContext) ||
JAVAX_FACES_CONVERT_PACKAGE_NAME.equals(converterClass.getPackage().getName()))
{
return null;
}
BeanManager beanManager = CDIUtils.getBeanManager(externalContext);
return getContextualReference(beanManager, converterClass);
}
private boolean isManagedValidatorsEnabled()
{
if (managedValidatorsEnabled != null)
{
return managedValidatorsEnabled;
}
//initValidatorInjectionEnabled();
return managedValidatorsEnabled;
}
private void initValidatorInjectionEnabled()
{
if (managedValidatorsEnabled != null)
{
return;
}
managedValidatorsEnabled = MyfacesConfig.getCurrentInstance(
FacesContext.getCurrentInstance().getExternalContext()).isCdiManagedValidatorsEnabled();
}
public Validator resolveManagedValidator(Class<? extends Validator> validatorClass)
{
if (!isManagedValidatorsEnabled())
{
return null;
}
ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
if (!ExternalSpecifications.isCDIAvailable(externalContext) ||
JAVAX_FACES_VALIDATOR_PACKAGE_NAME.equals(validatorClass.getPackage().getName()))
{
return null;
}
BeanManager beanManager = CDIUtils.getBeanManager(externalContext);
return getContextualReference(beanManager, validatorClass);
}
private static <T> T getContextualReference(BeanManager beanManager, Class<T> type)
{
Set<Bean<?>> beans = beanManager.getBeans(type);
if (beans == null || beans.isEmpty())
{
return null;
}
Bean<?> bean = beanManager.resolve(beans);
CreationalContext<?> creationalContext = beanManager.createCreationalContext(bean);
@SuppressWarnings({ "unchecked", "UnnecessaryLocalVariable" })
T result = (T) beanManager.getReference(bean, type, creationalContext);
if (bean.getScope().equals(Dependent.class))
{
//TODO add serializable check again or remove this TODO once MYFACES-3805 is clarified
AbstractBeanStorage beanStorage = getContextualReference(beanManager, RequestDependentBeanStorage.class);
//noinspection unchecked
beanStorage.add(new DependentBeanEntry(result, bean, creationalContext));
}
return result;
}
}