/*
* 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.webbeans.component;
import java.util.Stack;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.InjectionPoint;
import org.apache.webbeans.annotation.DefaultLiteral;
import org.apache.webbeans.annotation.DependentScopeLiteral;
import org.apache.webbeans.config.WebBeansContext;
public class InjectionPointBean extends AbstractOwbBean<InjectionPoint>
{
private static ThreadLocal<Stack<InjectionPoint>> localThreadlocalStack = new ThreadLocal<Stack<InjectionPoint>>();
private static Stack<InjectionPoint> getStackOfInjectionPoints()
{
Stack<InjectionPoint> stackIP = localThreadlocalStack.get();
if (null == stackIP)
{
stackIP = new Stack<InjectionPoint>();
}
return stackIP;
}
public static boolean setThreadLocal(InjectionPoint ip)
{
Stack<InjectionPoint> stackIP = getStackOfInjectionPoints();
stackIP.push(ip);
localThreadlocalStack.set(stackIP);
return true;
}
public static void unsetThreadLocal()
{
Stack<InjectionPoint> stackIP = getStackOfInjectionPoints();
stackIP.pop();
}
/**
* Removes the ThreadLocal from the ThreadMap to prevent memory leaks.
*/
public static void removeThreadLocal()
{
getStackOfInjectionPoints().clear();
localThreadlocalStack.remove();
}
public InjectionPointBean(WebBeansContext webBeansContext)
{
super(WebBeansType.INJECTIONPOINT,InjectionPoint.class, webBeansContext);
addQualifier(new DefaultLiteral());
setImplScopeType(new DependentScopeLiteral());
addApiType(InjectionPoint.class);
addApiType(Object.class);
}
public static boolean isStackEmpty()
{
return getStackOfInjectionPoints().isEmpty();
}
@Override
protected InjectionPoint createInstance(CreationalContext<InjectionPoint> creationalContext)
{
InjectionPoint ip = getStackOfInjectionPoints().peek();
return ip;
}
@Override
protected void destroyInstance(InjectionPoint instance, CreationalContext<InjectionPoint> creationalContext)
{
removeThreadLocal();
}
/* (non-Javadoc)
* @see org.apache.webbeans.component.AbstractOwbBean#isPassivationCapable()
*/
@Override
public boolean isPassivationCapable()
{
return true;
}
}