org.apache.myfaces.config.annotation.LifecycleProviderFactory Maven / Gradle / Ivy
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* 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
*
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package org.apache.myfaces.config.annotation;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import javax.faces.FacesException;
import javax.faces.context.ExternalContext;
import org.apache.commons.discovery.tools.DiscoverSingleton;
public abstract class LifecycleProviderFactory {
protected static final String FACTORY_DEFAULT = DefaultLifecycleProviderFactory.class.getName();
private static volatile LifecycleProviderFactory INSTANCE;
public static LifecycleProviderFactory getLifecycleProviderFactory()
{
LifecycleProviderFactory instance = INSTANCE;
if (instance != null)
{
return instance;
}
LifecycleProviderFactory lpf = null;
try
{
if (System.getSecurityManager() != null)
{
lpf = (LifecycleProviderFactory) AccessController.doPrivileged(new java.security.PrivilegedExceptionAction