package org.apache.myfaces.tobago.webapp;
/*
* 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.
*/
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.tobago.config.TobagoConfig;
import javax.faces.FactoryFinder;
import javax.faces.lifecycle.LifecycleFactory;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
/**
* Workaround: Weblogic 8.1 calls the ContextListeners after calling
* Servlet.init() but, JSF assume it does it before.
* Maybe weblogic doesn't call ContextListeners from *.jar!
*
* @see <a href="http://forum.java.sun.com/thread.jsp?forum=427&thread=499690">
* WLS8.1 & JSF 1.0 Final: "Faces Servlet" failed to preload</a>
*/
public class WeblogicWorkaroundServlet extends HttpServlet {
private static final long serialVersionUID = -8636608446986072719L;
private static final Log LOG = LogFactory.getLog(WeblogicWorkaroundServlet.class);
public void init() throws ServletException {
if (LOG.isDebugEnabled()) {
LOG.debug("1st");
}
LifecycleFactory factory = (LifecycleFactory)
FactoryFinder.getFactory(FactoryFinder.LIFECYCLE_FACTORY);
if (factory == null) { // Faces ConfigureListener is not called until now!
final String className = "com.sun.faces.config.ConfigureListener";
if (LOG.isDebugEnabled()) {
LOG.debug("Init of " + className + " by servlet!");
}
callInit(className);
}
if (LOG.isDebugEnabled()) {
LOG.debug("2nd");
}
TobagoConfig tobagoConfig = (TobagoConfig)
getServletContext().getAttribute(TobagoConfig.TOBAGO_CONFIG);
if (tobagoConfig == null) { // TobagoServletContextListener is not called until now!
final String className = TobagoServletContextListener.class.getName();
if (LOG.isDebugEnabled()) {
LOG.debug("Init of " + className + " by servlet!");
}
callInit(className);
}
if (LOG.isDebugEnabled()) {
LOG.debug("3rd");
}
}
private void callInit(String className) {
try {
Class aClass = Class.forName(className);
ServletContextListener listener = (ServletContextListener) aClass.newInstance();
listener.contextInitialized(new ServletContextEvent(getServletContext()));
} catch (ClassNotFoundException e) {
LOG.error("", e);
} catch (IllegalAccessException e) {
LOG.error("", e);
} catch (InstantiationException e) {
LOG.error("", e);
}
}
}