/*
* 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.spi.impl;
import org.apache.myfaces.config.DefaultFacesConfigurationProvider;
import org.apache.myfaces.shared.util.ClassUtils;
import org.apache.myfaces.spi.FacesConfigurationProvider;
import org.apache.myfaces.spi.FacesConfigurationProviderFactory;
import org.apache.myfaces.spi.ServiceProviderFinderFactory;
import javax.faces.FacesException;
import javax.faces.context.ExternalContext;
import java.lang.reflect.InvocationTargetException;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Leonardo Uribe
* @since 2.0.3
*/
public class DefaultFacesConfigurationProviderFactory extends FacesConfigurationProviderFactory
{
public static final String FACES_CONFIGURATION_PROVIDER = FacesConfigurationProvider.class.getName();
public static final String FACES_CONFIGURATION_PROVIDER_LIST = FacesConfigurationProvider.class.getName()+".LIST";
public static final String FACES_CONFIGURATION_PROVIDER_INSTANCE_KEY = FacesConfigurationProvider.class.getName() + ".INSTANCE";
private Logger getLogger()
{
return Logger.getLogger(DefaultFacesConfigurationProviderFactory.class.getName());
}
@Override
public FacesConfigurationProvider getFacesConfigurationProvider(
ExternalContext externalContext)
{
FacesConfigurationProvider returnValue = (FacesConfigurationProvider) externalContext.getApplicationMap().get(FACES_CONFIGURATION_PROVIDER_INSTANCE_KEY);
if (returnValue == null)
{
final ExternalContext extContext = externalContext;
try
{
if (System.getSecurityManager() != null)
{
returnValue = AccessController.doPrivileged(new java.security.PrivilegedExceptionAction<FacesConfigurationProvider>()
{
public FacesConfigurationProvider run() throws ClassNotFoundException,
NoClassDefFoundError,
InstantiationException,
IllegalAccessException,
InvocationTargetException,
PrivilegedActionException
{
return resolveFacesConfigurationProviderFromService(extContext);
}
});
}
else
{
returnValue = resolveFacesConfigurationProviderFromService(extContext);
}
externalContext.getApplicationMap().put(FACES_CONFIGURATION_PROVIDER_INSTANCE_KEY, returnValue);
}
catch (ClassNotFoundException e)
{
// ignore
}
catch (NoClassDefFoundError e)
{
// ignore
}
catch (InstantiationException e)
{
getLogger().log(Level.SEVERE, "", e);
}
catch (IllegalAccessException e)
{
getLogger().log(Level.SEVERE, "", e);
}
catch (InvocationTargetException e)
{
getLogger().log(Level.SEVERE, "", e);
}
catch (PrivilegedActionException e)
{
throw new FacesException(e);
}
}
return returnValue;
}
private FacesConfigurationProvider resolveFacesConfigurationProviderFromService(
ExternalContext externalContext) throws ClassNotFoundException,
NoClassDefFoundError,
InstantiationException,
IllegalAccessException,
InvocationTargetException,
PrivilegedActionException
{
List<String> classList = (List<String>) externalContext.getApplicationMap().get(FACES_CONFIGURATION_PROVIDER_LIST);
if (classList == null)
{
classList = ServiceProviderFinderFactory.getServiceProviderFinder(externalContext).getServiceProviderList(FACES_CONFIGURATION_PROVIDER);
externalContext.getApplicationMap().put(FACES_CONFIGURATION_PROVIDER_LIST, classList);
}
return ClassUtils.buildApplicationObject(FacesConfigurationProvider.class, classList, new DefaultFacesConfigurationProvider());
}
}