| /* |
| * 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.extensions.scripting.cdi.listener; |
| |
| import org.apache.myfaces.extensions.scripting.cdi.api.CdiContainerLoader; |
| import org.apache.myfaces.extensions.scripting.core.api.eventhandling.WeavingEvent; |
| import org.apache.myfaces.extensions.scripting.core.api.eventhandling.WeavingEventListener; |
| import org.apache.myfaces.extensions.scripting.core.api.eventhandling.events.RefreshBeginEvent; |
| import org.apache.myfaces.extensions.scripting.core.api.eventhandling.events.TaintedEvent; |
| import org.apache.myfaces.extensions.scripting.core.engine.ThrowAwayClassloader; |
| |
| import javax.servlet.ServletContext; |
| import javax.servlet.http.HttpServletRequest; |
| |
| /** |
| * @author Werner Punz (latest modification by $Author$) |
| * @version $Revision$ $Date$ |
| * <p/> |
| * Reloading listener which triggers a container reload |
| * the reload can happen at the end of the extscript lifecycle |
| * when all beans have been tainted |
| */ |
| public class ReloadingListener implements WeavingEventListener |
| { |
| boolean _tainted = false; |
| ServletContext context; |
| |
| @Override |
| public void onEvent(WeavingEvent evt) |
| { |
| if (evt instanceof TaintedEvent) |
| { |
| _tainted = true; |
| } else if (evt instanceof RefreshBeginEvent) |
| { |
| RefreshBeginEvent refreshEvent = (RefreshBeginEvent) evt; |
| if (_tainted) |
| { |
| _tainted = false; |
| HttpServletRequest req = (HttpServletRequest) refreshEvent.getRequest(); |
| //TODO plug reloadable classloader in here temporarily |
| //as context classloader, then restart the container |
| //then restore the old classloader |
| ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader(); |
| ClassLoader tempClassLoader = new ThrowAwayClassloader(oldClassLoader); |
| Thread.currentThread().setContextClassLoader(tempClassLoader); |
| try |
| { |
| CdiContainerLoader.getCdiContainer().getContextControl(req.getServletContext(), |
| req.getSession()).stopContexts(); |
| CdiContainerLoader.getCdiContainer().shutdown(); |
| |
| CdiContainerLoader.getCdiContainer().boot(); |
| |
| CdiContainerLoader.getCdiContainer().getContextControl(req.getServletContext(), |
| req.getSession()).startContexts(); |
| } |
| finally |
| { |
| Thread.currentThread().setContextClassLoader(oldClassLoader); |
| } |
| } |
| } |
| } |
| } |