/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.server.webbeans;
import com.caucho.config.scope.ApplicationScope;
import com.caucho.config.scope.DestructionListener;
import com.caucho.config.scope.ScopeContext;
import com.caucho.config.scope.ContextContainer;
import com.caucho.server.dispatch.ServletInvocation;
import java.lang.annotation.Annotation;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.enterprise.context.*;
import javax.enterprise.context.spi.*;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.enterprise.inject.spi.PassivationCapable;
/**
* The session scope value
*/
public class SessionScope extends ScopeContext {
private ScopeIdMap _idMap = new ScopeIdMap();
/**
* Returns true if the scope is currently active.
*/
public boolean isActive()
{
ServletRequest request = ServletInvocation.getContextRequest();
if (request != null) {
HttpSession session = ((HttpServletRequest) request).getSession();
return session != null;
}
return false;
}
/**
* Returns the scope annotation type.
*/
public Class<? extends Annotation> getScope()
{
return SessionScoped.class;
}
public <T> T get(Contextual<T> bean)
{
ServletRequest request = ServletInvocation.getContextRequest();
if (request == null)
return null;
HttpSession session = ((HttpServletRequest) request).getSession();
if (session == null)
return null;
ContextContainer context
= (ContextContainer) session.getAttribute("webbeans.resin");
if (context != null) {
String id = ((PassivationCapable) bean).getId();
return (T) context.get(id);
}
return null;
}
public <T> T get(Contextual<T> bean,
CreationalContext<T> creationalContext)
{
ServletRequest request = ServletInvocation.getContextRequest();
if (request == null)
return null;
HttpSession session = ((HttpServletRequest) request).getSession();
Bean<T> comp = (Bean) bean;
String id;
if (bean instanceof PassivationCapable)
id = ((PassivationCapable) bean).getId();
else
id = comp.getBeanClass().getName();
ContextContainer context
= (ContextContainer) session.getAttribute("webbeans.resin");
if (context == null) {
context = new SessionContextContainer();
session.setAttribute("webbeans.resin", context);
}
T result = (T) context.get(id);
if (result != null || creationalContext == null)
return result;
result = comp.create(creationalContext);
context.put(comp, id, result, creationalContext);
return (T) result;
}
@Override
public boolean canInject(Class scopeType)
{
return (scopeType == ApplicationScoped.class
|| scopeType == SessionScoped.class
|| scopeType == ConversationScoped.class
|| scopeType == Dependent.class);
}
@Override
public boolean canInject(ScopeContext scope)
{
return (scope instanceof ApplicationScope
|| scope instanceof SessionScope);
}
public void addDestructor(Bean comp, Object value)
{
ServletRequest request = ServletInvocation.getContextRequest();
if (request != null) {
HttpSession session = ((HttpServletRequest) request).getSession();
DestructionListener listener
= (DestructionListener) session.getAttribute("caucho.destroy");
if (listener == null) {
listener = new DestructionListener();
session.setAttribute("caucho.destroy", listener);
}
// XXX:
//listener.addValue(comp, value);
}
}
}